Answer: -49152
Step-by-step explanation: the pattern here is that each term is subtracting 3 times its absolute value. Going from -3 to -12 there is a difference of 9 which is 3 times to absolute value of -3. So, the sequence will continue like this : -192, - 768, -3072, - 12288, -49152.
an empty rectangular tank is 80 cm long and 60 cm wide. water flows into the tank at a rate of 24 liter per minute. how long will it take to fill the tank to a height of 50 cm?
By definitions of volume and flow rate, it will take a time of 10 minutes to fill the tank to a height of 50 centimeters.
How long will it take to fill the tank at constant rate?
Herein we find the case of a rectangular tank being filled with water at constant flow are, which is dimensionally speaking, volume by time. We know that dimensions of the tank are described in centimeters, whereas flow rate is described in liters per minute. Please notice that a liter is equal to 1000 cubic centimeters:
t = [(80 cm) · (60 cm) · (50 cm) · (1 L / 1000 cm³)] / (24 L / min)
t = 10 min
By definitions of volume and flow rate, it will take a time of 10 minutes to fill the tank to a height of 50 centimeters.
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On a rectangular soccer field, Sang is standing on the goal line 20 yards from the corner post. Jazmin is standing 99 yards from the same corner post on the nearest adjacent side of the field. What is the distance from Sang to Jazmin?
A. 119
B. 101
C. 10,201
D. 1,980
The distance from Sang to Jazmin is 101 yards.
What is the distance from Sang to Jazmin?
From the discussion in the question, we can see that the positions of Sang and Jazmin can be construed to give a rectangle. We know that the rectangle is a four sided figure.
The diagonal is a line that is drawn from one side of the four sided figure to another. Hence we can be able to apply the Pythagoras theorem to obtain the distance from Sang to Jazmin.
From;
c^2 = a^2 + b^2
c = √a^2 + b^2
c = √(20)^2 + (99)^2
c = 101 yards.
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Firewood can be sold in cords. the wood is cut into equal lengths and stacked evenly in a rack. which geometric shape can be used as a model to calculate the volume of the cord of wood?
To estimate the volume of the chord of wood, since the wood exists cut into equal lengths and stacked evenly in a rack then we can use a cylinder as a model.
What is a cylinder?In mathematics, a cylinder exists as a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance. These bases exist normally circular (like a circle) and the center of the two bases exists joined by a line segment, which exists named the axis.
A cylinder exists as a closed solid that contains two parallel circular bases joined by a curved surface.
To calculate the volume of the chord of wood, since the wood exists cut into equal lengths and stacked evenly in a rack then we can use a cylinder as a model.
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Using the digits below form the smallest number which is a multiple of 3
9,4,5
This would be the least common multiple of 3, 4, 5, and 9. We can start by listing the multiples of the biggest number, 9, and seeing if each of the numbers can be divisible by the smaller numbers.
9: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180
180 would be the answer because it is the first number in our list that is divisible by 3, 4, 5, and 9.
The table below shows the depth of water in a bathtub as it is being filled over time. The data can be modeled by a linear equation where x is the elapsed time in minutes and y is the depth of the water in inches. What does the y-intercept of the linear equation that models the data indicate?
The y-intercept of the linear equation that models the data indicates that:
There was 1 inch of water on the tub when the water was turned on.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.In this problem, when x changes by 1, y changes by 2, hence the slope is of 2. Hence, since when x = 1, y = 3, when x = 0, y = 3 - 2 = 1, which means that the y-intercept is of 1, and the correct interpretation is:
There was 1 inch of water on the tub when the water was turned on.
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Consider the expressions shown below.
A. -8x^2 - 3x + 4
B. 8x^2 - 3x + 8
C. 8x^2 + 3x - 4
Complete each of the following statements with the letter that represents the expression.
(3x^2 - 7x + 14) + (5x^2 + 4x - 6) is equivalent to expression
(2x^2 - 5x - 3) + (-10x^2 + 2x + 7) is equivalent to expression
(12x^2 - 2x - 13) + (-4x^2 + 5x +9) is equivalent to expression
(3x² - 7x + 14) + (5x² + 4x - 6)
Match 3x² and 5x² to get 8x².
8x² - 7x + 14 + 4x - 6Combine −7x and 4x to get −3x.
8x² −3x + 14 − 6Subtract 6 from 14 to get 8.
8x² - 3x + 8Therefore, the expression (3x² - 7x + 14) + (5x² + 4x - 6), is equivalent to the expression "B".
===> Exercise 2
(2x² - 5x -3) + (-10x² + 2x + 7)
Combine 2x² and -10x² to get −8x².
−8x² −5x − 3 + 2x + 7Combine −5x and 2x to get −3x.
-8x² − 3x − 3 + 7Add −3 and 7 to get 4.
-8x² - 3x + 4Therefore, the expression (2x² - 5x -3) + (-10x² + 2x + 7), is equivalent to the expression "A".
===> Exercise 3
(12x² - 2x - 13) + (-4x² + 5x +9)
Combine 12x² and -4x² to get 8x².
8x² − 2x −13 + 5x + 9Combine −2x and 5x to get 3x.
8x² + 3x − 13 + 9Add −13 and 9 to get −4.
8x² + 3x - 4Therefore, the expression (12x² - 2x - 13) + (-4x² + 5x +9), is equivalent to the expression "C".
A locker combination consists of two non-zero digits. the digits in a combination are not repeated and range from 2 through 9. event a = the first digit is an odd number event b = the second digit is an odd number if a combination is picked at random with each possible locker combination being equally likely, what is p(b|a) expressed in simplest form? a. b. c. d.
The P(B|A) expressed in the simplest form will be (B) 2/7.
What is probability?Probability is an area of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely a statement is to be true. The probability of an event is a number between 0 and 1, where 0 denotes the event's impossibility and 1 represents certainty.To find the P(B|A) expressed in the simplest form:
Given -
Event A = the first digit is less than 5Event B = the second digit is less than 5Total possible numbers = 2,3,4,5,6,7,8,9
Let the value of the number be AB.
The total possible values below 5 are 2,3, and 4.The probability of the first digit is less than 5, P(A) = 3/8.The second digit is less than 5, P(B/A) = 2/7.Therefore, the P(B|A) expressed in the simplest form will be (B) 2/7.
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The complete question is given below:
A locker combination consists of two non-zero digits. The digits in a combination are not repeated and range from 2 through 9.
Event a = a first digit is an odd number
Event b = the second digit is an odd number
If a combination is picked at random with each possible locker combination being equally likely, what is P(B/A) expressed in the simplest form?
A.1/4
B.2/7
C.4/9
D.1/2
Given: m∠H = 30°, m∠J = 50°, m∠P = 50°, m∠N = 100°
Prove: △HKJ ~ △LNP
Triangles H K J and L N P are shown. Triangle L N P is smaller and to the right of triangle H K J.
Statement Reason
1. m∠H = 30°, m∠J = 50°, m∠P = 50°, m∠N = 100° 1. given
2. m∠H + m∠J + m∠K = 180° 2. ?
3. 30° + 50° + m∠K = 180° 3. substitution property
4. 80° + m∠K = 180° 4. addition
5. m∠K = 100° 5. subtraction property of equality
6. m∠J = m∠P; m∠K = m∠N 6. substitution
7. ∠J ≅ ∠P; ∠K ≅ ∠N 7. if angles are equal then they are congruent
8. △HKJ ~ △LNP 8. AA similarity theorem
Which reason is missing in step 2?
CPCTC
definition of supplementary angles
triangle parts relationship theorem
triangle angle sum theorem
Answer:
triangle angle sum theorem
Step-by-step explanation:
The missing statement is one that justifies the sum of the angles in a triangle being 180°.
That justification is provided by the ...
triangle angle sum theorem
QUICK!!!HELP!!!!!!!!!!!!!!!!!!
Using the normal distribution, the probability that a worker selected at random makes between $500 and $550 is: 2.15%.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean mu and standard deviation sigma is given by:
Z = (X - mu)/sigma
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.The mean and the standard deviation are given as follows:
mu = 400, sigma = 50
The probability is the p-value of Z when X = 550 subtracted by the p-value of Z when X = 500, hence:
X = 550:
Z = (X - mu)/sigma
Z = (550 - 400)/50
Z = 3
Z = 3 has a p-value of 0.9987.
X = 500:
Z = (X - mu)/sigma
Z = (500 - 400)/50
Z = 2
Z = 2 has a p-value of 0.9772.
0.9987 - 0.9772 = 0.0215 = 2.15% probability.
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Carries family broke a package of graham crackers into 32 pieces. carries two brothers each ate 1/8 of the pieces and the rest of the family ate 7/16 of the pieces.
Carries two brothers each ate 4 pieces, the rest of carries family ate 14 pieces and there were 14 pieces remaining given that Carries family broke a package of graham crackers into 32 pieces. carries two brothers each ate 1/8 of the pieces and the rest of the family ate 7/16 of the pieces. This can be obtained by multiplying the fractions given with the total number.
Find the required number of pieces:From the question it is given that,
Carries family broke a package of graham crackers into 32 pieces.
Therefore total number of pieces will be 32 pieces.
First it is said that,carries two brothers each ate 1/8 of the pieces
This means that out of 32, 1/8 of the pieces were ate by the two brothers.
1/8 of 32 = 1/8 × 32 = 4 pieces
⇒ Carries two brothers each ate 4 pieces
Next it is said that,the rest of the family ate 7/16 of the pieces
This means that out of 32, 7/16 of the pieces were ate by the rest of the family
7/16 of 32 = 7/16 × 32 = 14 pieces
⇒ the rest of carries family ate 14 pieces
To find the remaining pieces add the number of pieces ate by both carries brothers and the rest of the family and subtracting from the total number of pieces.remaining pieces = 32 - (4 + 14) = 32 - 18 = 14 pieces
⇒ there were 14 pieces remaining
carries two brothers each ate 4 piecesthe rest of carries family ate 14 piecesthere were 14 pieces remainingHence Carries two brothers each ate 4 pieces, the rest of carries family ate 14 pieces and there were 14 pieces remaining given that Carries family broke a package of graham crackers into 32 pieces.
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Disclaimer: The question was given incomplete on the portal. Here is the complete question.
Question: Carries family broke a package of graham crackers into 32 pieces. carries two brothers each ate 1/8 of the pieces and the rest of the family ate 7/16 of the pieces.
carries two brothers each ate ____ pieces
the rest of carries family ate ____ pieces
there were ____ pieces remaining
x^-19x-39=0 complete the square
The resulting equation on completing the square is (x+19/2)^2 = 39 + (19/2)^2
Completing the square method for a quadQuadratic equation are equations that has a leading degree of 2. Most quadratic equations have 3 terms.
Given the quadratic equation x^2-19x-39 = 0
Add 39 to both sides to have:
x^2 - 19x - 39 + 39 = 0 + 39
x^2 -19x = 39
Complete the square of the resulting
x^2-19x+(19/2)^2 = 39 + (19/2)^2
(x+19/2)^2 = 39 + (19/2)^2
x + 19/2 = ±√39 + (19/2)^2
x = ±√39 + (19/2)^2 - 19/2
Hence the resulting equation on completing the square is (x+19/2)^2 = 39 + (19/2)^2
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How would I solve this, converting the left side to a square root? -16 = r^3
[tex]-16=r^3\implies \sqrt[3]{-16}=\sqrt[3]{r^3}\implies \sqrt[3]{-16}=r\implies \sqrt[3]{-2^4}=r \\\\\\ \sqrt[3]{(-2)^3\cdot 2^1}=r\implies -2\sqrt[3]{2^1}=r\implies -2\sqrt[3]{2}=r[/tex]
Brass is an alloy made by melting and mixing copper and zinc. A metallurgist has two brass
alloys, one that is 65% copper and one that is 90% copper. He would like to combine a
portion of each alloy to produce 500 g of a new alloy that is 75% copper.
Write a system of equations for this problem
Answer:
x +y = 5000.65x +0.95y = 0.75(500)solution: (x, y) = (300, 200)Step-by-step explanation:
A system of equations for the problem can be written using the two given relationships between quantities of brass alloys.
SetupLet x and y represent the quantities in grams of the 65% and 90% alloys used, respectively. There are two relations given in the problem statement.
x + y = 500 . . . . . . quantity of new alloy needed
0.65x +0.90y = 0.75(500) . . . . . quantity of copper in the new alloy
These are the desired system of equations.
SolutionThis problem does not ask for the solution, but it is easily found using substitution for x.
x = 500 -y
0.65(500 -y) +0.90y = 0.75(500)
(0.90 -0.65)y = 500(0.75 -0.65) . . . . . . subtract 0.65(500)
y = 500(0.10/0.25) = 200
x = 500 -200 = 300
300 grams of 65% copper and 200 grams of 90% copper are needed.
A locker combination consists of two non-zero digits. the digits in a combination are not repeated and range from 2 through 9. event a = the first digit is less than 5 event b = the second digit is less than 5 if a combination is picked at random, with each possible locker combination being equally likely, what is p(b|a) expressed in simplest form?
Answer:
1/3.
Step-by-step explanation:
P(event a occurs) = 3/9 = 1/3
P(event b occurs) = 3/9 = 1/3
P(a) ∩ P(b) = 1/3 * 1/3 = 1/9
P(b|a) = P(a) ∩ P(b) / P(a)
= 1/9 / 1/3
= 1/3.
When one organism gains a benefit at the expense of a second organism and causes them harm is called:
A. patasitism
B. Mutualism
C. Commensalism
D. Predation
When one organism gains a benefit at the expense of a second organism and causes them harm is called:
A. Parasitism
B. Mutualism
C. Commensalism
D. Predation
Answer:
Step-by-step explanation:
a
There are different types of correlation one can use based on the types of variables being examined. When conducting an analysis, when do you need to use spearman’s rho instead of pearson’s r ?.
The correct option is A.
When the data are nominal or ordinal.
What are the Types of correlation?There are three types of correlation:
1. Positive and negative correlation
2. Linear and non-linear correlation
3. Simple, multiple, and partial correlation
According to the information:There are different types of correlation one can use based on the types of variables being examined.
Spearman’s rho is a superb choice when you have nominal or ordinal data because Pearson’s isn't appropriate. Ordinal data have a minimum of three categories and the categories have a natural order. for instance , first, second, and third during a race are ordinal data.
Briefing:Two variables can have some quite relationship, i.e., change in one may cause a change within the other.
If a change within the value of one variable causes a simultaneous change in the other variable in the same or opposite direction, then it’s termed as correlation, or these variables are said to be correlated. Keeping these in mind the answer to this question is When the data are nominal or ordinal
When the data are nominal or ordinal.
So the option no A is correct.
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I understand that the question you are looking for is:
There are different types of correlation one can use based on the types of variables being examined. When conducting an analysis, when do you need to use spearman’s rho instead of Pearson's r ?
A. When the data are nominal or ordinal.
B. When the data are ratio or interval.
C. When the data are random.
D. Spearman's rho should never be used for correlations.
You are constructing a metal border of uniform width for a rectangular wall mirror that measures 20 inches by 24 inches. You have 416 square inches of metal to use. What is the greatest possible width * of the border
Answer:
The frame will be 4 inches in width
Step-by-step explanation:
The length of the outside is 24+2x
The width of the outside is 20+2x
(24+2x)(20+2x) - 20(24) = 416
480 + 40x + 48x + 4x2 - 480 = 416
4x2 + 88x - 416 = 0
x2 + 22x - 104 = 0
(x+26)(x-4) = 0
x = -26 or x=4
The frame will be 4 inches in width
Russ is solving an equation where both sides are linear expressions. he sets the expressions equal to y and graphs the system finding that they are the same line. how should russ interpret this outcome?
The correct option (D).
There are infinitely many intersection points.
What is liner equation?a two-variable equation that, when plotted on a graph, results in a straight line.
What does intersection point mean?The term "point of intersection" refers to the intersection of two lines.
According to the given information:Russ is attempting to solve an equation whose two sides are both linear expressions.
He graphs the system and finds that they are on the same line after setting the expressions to y.
Since both lines are the same, there are an endless number of junction places.
Russ should therefore consider the outcome to be option (D) There are a limitless number of intersections.
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I understand that the question you are looking for is:
Russ is solving an equation where both sides are linear expressions. He sets the expressions equal to y and graphs the system finding that they are the same line. How should Russ interpret this outcome? There are no intersection points. There is exactly one intersection point. There are exactly two intersection points. There are infinitely many intersection points.Russ is solving an equation where both sides are linear expressions. He sets the expressions equal to y and graphs the system finding that they are the same line. How should Russ interpret this outcome?
A. There are no intersection points.
B. There is exactly one intersection point.
C. There are exactly two intersection points.
D. There are infinitely many intersection points
pls helpp
1. There are 3 1/2 groups of students ready to load buses for a field trip. Each group will fill one bus 2/5 of the students on each bus are boys. How many buses would it take to carry only the boys.
2. Mark is going to a pool party. It is 2 3/4 miles from his house. Mark decides to ride his bicycle, but he has a flat tire 2/3 if the way there. How far is Mark from his house?
We know that there are (3 + 1/2) groups, such that each group fill one bus.
2/5 of the students are boys, then the number of groups that we can make only with boys is:
(2/5)*(3 + 1/2) = 6/5 + 1/5 = 7/5 = 5/5 + 2/5 = 1 + 2/5
Then you can make one and a little less than a half of a group, which means that you need 1 and 2/5 of a buss to transport the boys, rounding that to the a whole number, you will need 2 busses to only transport the boys.
How far is Mark from his house?The original distance is:
D = (2 + 3/4) miles.
But Mark only covers 2/3 of that distance, then we have:
d = (2/3)*D = (2/3)*(2 + 3/4) miles = (4/3 + 2/4) miles
d = (4/3 + 1/2) miles = (8/6 + 3/6) miles = (1 + 5/6) miles
Mark is at (1 + 5/6) miles of his house.
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Which is a recursive formula for the sequence 99.4, 0, –99.4, –198.8, where f(1) = 99.4? f(n 1) = f(n) 99.4, n ≥ 1 f(n 1) = f(n) – 99.4, n ≥ 1 f(n 1) = 99.4f(n), n ≥ 1 f(n 1) = –99.4f(n), n ≥ 1
The recursive formula for the given sequence is [tex]f(n+1)=f(n)-99.4[/tex]
What is recursive formula?Any term of a series can be defined by its preceding term in a recursive formula (s). For instance: An arithmetic series has the recursive formula [tex]a_n = a_{n-1} + d[/tex]. [tex]a_n = a_{n-1}r[/tex] is the recursive formula for a geometric sequence.
We are given a sequence as:
99.4,0,-99.4,-198.8, and so on
We can see that the sequence is constantly getting decreased by -99.4
i.e. f(1)=99.4
Then, f(2)=f(1)-99.4
=99.4-99.4
=0
f(3)=f(2)-99.4
=0-99.4
=-99.4
Therefore, the recursive formula of the given series is [tex]f(n+1)=f(n)-99.4[/tex]
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Write the equation of straight line passing through (3,4). Does the point (4,3) lie on
your line
Answer:
Is there more information? There is not enough to find the slope of a line. I'll answer with an equation that works, but I suspect it won't be correct.
Step-by-step explanation:
If the only requirement is to have a line that goes through (4,3). Then one could simply say:
y = 4
This is a horizonal line that goes through (3,4), and will always produce a y value of 4 regardless of x. No, it will not pass through (4,3) since y is aleways 4, regardless of x.
If you wanted to get fancier, we could write a needlessly more complex equation:
y = (4/3)x
When x = 3, y = 4, so (3,4) is on this line. But (4,3) is not. y = (4/3)(4) means y = (16/3), not 4.
If a polynomial function, f(x), with rational coefficients has roots 0, 4, and 3 startroot 11 endroot, what must also be a root of f(x)?
Answer:
-3√11
Step-by-step explanation:
If the coefficients of a polynomial are rational, any irrational root will have a conjugate that is also a root.
Irrational rootsThe root 3√11 is irrational, so its conjugate, -3√11, will also be a root.
__
Additional comments
The conjugate of a root of the form a+√b or a+bi will be the same form with the sign changed: a-√b or a-bi.
The conjugate of 3√11 = 0 +√99 will be 0 -√99 = -3√11.
__
A quadratic with rational coefficients can only have irrational roots of the form a±√b, where 'a' and 'b' may be any rational number.
3 - √11 also be a root of f(x).
What is Polynomial function ?A polynomial function is a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation like the quadratic equation, cubic equation, etc.
According to the given Information:Get the conjugate of any irrational zero if you want rational coefficients.
The conjugate of 3 + √11 is 3 - √11
x = 3 +√ 11
Subtract 3 on both sides
x minus 3 = 3 + √11 - 3
x - 3 = √11
By squaring on both sides
(x - 3)² =√ 11
Now subtract 11 on both sides
(x - 3)² - 11 = 0
To factor use the difference of squares
u² minus v² = (u minus v) (u plus v)
[(x - 3) - 11][(x - 3) + 11] = 0
We get,
(x - 3) - 1 = 0 or (x - 3) + 11 = 0
Solve for x - 3 and x
Add √11 on both sides of first equation and subtract √11 on both sides of second equation
x minus 3 = √11 or x minus 3 = - √11
By adding 3 on both sides
x = 3 + √11 or x = 3 - √11
As a result,
the root of 3 - √11 must likewise be f(x).
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Deion misses 4% of the free throws he attempts in a seaon. how many total free throws did he attempt if he missed 17
He has thrown 425 free throws if he missed 17
How to determine the total number of free throws?The given parameters are:
Proportion of free throw missed, p = 4%
Number of free throw missed, n = 17
Let the total number of throws be N.
So we have
n = p * N
Substitute the known values in the above equation
17 = 4% * N
Divide both sides by 4%
N = 425
Hence, he has thrown 425 free throws if he missed 17
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Geometry: Use this illustration to calculate these values, ASAP!!!
Applying the same-side interior angles theorem,
7. m∠4 = 50°; m∠5 = 130°
8. m∠2 = 15°; m∠8 = 15°.
What is the Same-Side Interior Angles Theorem?The same-side interior angles theorem holds that, two interior angles on a side of a transversal are supplementary, that is they add up to 180 degrees.
What is the Alternate Exterior Angles Theorem?According to the alternate exterior angles theorem, exterior angles that alternate each other along a transversal are congruent, that is they have equal measures.
7. m∠4 + m∠5 = 180 [same-side interior angles theorem]
Substitute
y + 2y + 30 = 180
3y + 30 = 180
3y = 180 - 30
3y = 150
y = 50
m∠4 = y = 50°
m∠5 = 2y + 30 = 2(50) + 30
m∠5 = 130°
8. m∠2 = m∠8 [alternate exterior angles theorem]
Substitute
x - 30 = 3x - 120
x - 3x = 30 - 120
-2x = -90
x = 45
m∠2 = x - 30 = 45 - 30 = 15°
m∠8 = 3x - 120 = 3(45) - 120 = 15°
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9 The cost of a mobile phone call is 30 cents plus 20 cents per minute.
a Find the possible cost of a call if it is:
i shorter than 5 minutes ii longer than 10 minutes
b For how many minutes can the phone be used if the cost per call is:
i less than $2.10 ii greater than or equal to $3.50
Using a linear function, we have that:
a) The costs are:
i. C(x) < $1.3.
ii. C(x) > $2.3.
b) The times are:
i. Less than 9 minutes.
ii. At least 16 minutes.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.In this problem, the y-intercept is of 0.3, while the slope is of 0.2, hence the cost for a call of x minutes is:
C(x) = 0.3 + 0.2x.
For calls shorter than 5 minutes, the costs are:
C(x) < 0.3 + 0.2 x 5
C(x) < $1.3.
For calls longer than 10 minutes, the costs are:
C(x) > 0.3 + 0.2 x 10
C(x) > $2.3.
The cost is less than $2.10 for calls of less than x minutes, found as follows:
0.3 + 0.2x < 2.1
0.2x < 1.8
x < 9.
The cost is greater or equal to $3.50 for calls of at least x minutes, found as follows:
0.3 + 0.2x >= 3.5
0.2x >= 3.2
x >= 16.
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The table can be used to determine the solution to the system of equations, 2y − x = 8, and y − 2x = −5.
A table with 6 columns and 2 rows. The first column, Original System has 2 y minus x equals 8 and y minus 2 x equals negative 5. The second column, Equivalent System, has 2 y minus x equals 8 and negative y plus 4 x equals 10. The third column, Sum of equations in Equivalent System, has 3 x equals 18. The fourth column, Solution to System, is blank. The fifth column, New System Using Sum, has2 y minus x equals 8 and 3 x equals 18. The sixth column, Solution to New System is blank.
Which solution can be used to fill in both blanks in the table?
The solution to the system and the solution that fills the blank space is (6, 1)
System of equationsThis are also known as a set of simultaneous equations, also known as a system of equations which is a finite set of equations for which common solutions
Given the following system of equations
2y − x = 8, and
y − 2x = −5.
From equation 2;
y = -5 + 2x ............. 3
Substitute equation 2 into equation 1 to have:
2(-5+2x) - x = 8
Expand to have:
-10 +4x -x = 8
-10 + 3x = 8
3x = 8 + 10
3x = 18
Divide both sides
by 3
3x/3 = 18/3
x = 6
Substitute x = 6 into equation 3
y = -5 + 2x
y = -5 + 2(3)
y = -5 + 6
y = 1
Hence the solution to the system and the solution that fills the blank space is (6, 1)
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Answer:
Its D (6,7)
Step-by-step explanation:
Solve the equation the square root of the quantity x plus 4 minus 3 equals 1 for the variable.
Answer:
x = 12
Step-by-step explanation:
sqrt(x+4) - 3 = 1
First get the sqrt all by itself on one side of the equation. Add 3 to both sides of the equation.
sqrt(x+4) = 1 + 3
sqrt(x+4) = 4
To "fix" the sqrt, that is, "undo it" and get rid of it, you have to SQUARE both sides of the equation.
(sqrt(x+4))^2 = 4^2
x + 4 = 16
subtract 4 to finish up.
x = 12
Check:
sqrt(12 + 4) - 3 = 1
sqrt16 - 3 = 1
4 - 3 = 1
1 = 1 Check!
What number is the height changing by each minute?
The height is changing by 0.5 units per minute as evident in the given table.
By what number is the height changing?It follows from the task content that the table given indicates that at, 0min, the height was 150.
While at 1 min, the height is 150.5. On this note, it follows that the height increases by 0.5 units for after every minute.
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please give the right answer and i will mark you brainlyist
Considering the given box plots, we have that:
Class A has the higher IQR.Class A has the highest test score.Class B has the higher median.Class B has the smaller range.What is a box plot?It is a plot that focuses the interquartile range of the population, which is the difference between the third and the first quartile, but gives a five number summary of the population, composed by these following measures.
The smallest value.The first quartile.The median.The third quartile.The highest value.Hence, for class A, we have that:
The smallest value is 62.The first quartile is 65.The median is of 70.The third quartile is 79.The highest value is of 86.Then:
The IQR is of 79 - 65 = 14.The range is of 86 - 62 = 24.Hence, for class B, we have that:
The smallest value is 68.The first quartile is 70.The median is of 74.The third quartile is 77.The highest value is of 79.Then:
The IQR is of 77 - 70 = 7.The range is of 79 - 68 = 11.Hence the correct options are given as follows:
Class A has the higher IQR.Class A has the highest test score.Class B has the higher median.Class B has the smaller range.More can be learned about box plots at https://brainly.com/question/27721471
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How do you solve this?
Step-by-step explanation:
g(x) is also called y. the functional result value for an input value x is shown in the y direction above or below that x value on the x axis.
so, when it says g(x) = c, the solution is to find the values of x for which b the function g delivers c as result.
now, we look at the graphic.
for example, g(x) = 0 (c = 0) has actually 3 solutions, as the function crosses the x-axis (and that means y or g(x) = 0) 3 times. so, there are 3 different values of x that create g(x) = 0.
but we are looking for a c that has only one solution (one value of x to create that result).
c = 1 ?
let's imagine a horizontal line through y = 1.
we see, it cuts the function also 3 times. 3 solutions.
c = -1 ?
a similar horizontal line through y = -1 cuts the function also 3 times. 3 solutions
but c = 3 !
a horizontal line through y = 3 stays above all the waves of the function and then cuts the function only one time at the very right. 1 solution !
and that is therefore our answer.