Answer:
3
Step-by-step explanation:
-2 * 3= -6
-1 * 3= -3
0 *3= 0
1 *3 = 3
2* 3 = 6
3 * 3 =9
Answer:
? = 3
Step-by-step explanation:
To find the value of ?, substitute one of the ordered pairs from the table [except (0, 0)] into the given formula and solve for ?.
Given formula:
[tex]\sf y=\boxed{?} \:x[/tex]
Substitute x = 1 and y = 3 into the formula:
[tex]\sf 3=\boxed{?} \:1[/tex]
To isolate ? divide both sides by 1:
[tex]\implies \sf \dfrac{3}{1}=\dfrac{\boxed{?} \:1}{1}[/tex]
[tex]\implies \sf 3=\boxed{?}[/tex]
Therefore, ? = 3:
[tex]\implies \sf y=3x[/tex]
Check by inputting another value of x from the table into the found formula and comparing the calculated y-value:
[tex]\sf x=-2 \implies y=3(-2)=-6 \quad \boxed{\sf correct}[/tex]
[tex]\sf x=3 \implies y=3(3)=9 \quad \boxed{\sf correct}[/tex]
A fruit basket contains only apples and bananas. If there are 8 apples and 13 bananas, what is the ratio of bananas to fruit? Select all that apply.
13:8
13:21
StartFraction 8 Over 13 EndFraction
21 to 13
StartFraction 13 Over 21 EndFraction
The ratio of bananas to fruit is 13 : 21
How to determine the ratio of bananas to fruit?The given parameters are
Banana = 13
Apple = 8
The total number of fruits is
Fruit = Banana + Apple
Substitute the known values in the above equation
Fruit = 13 + 8
Evaluate the sum
Fruit = 21
The ratio of bananas to fruit is then represented as:
Ratio = Banana : Fruit
Substitute the known values in the above equation
Ratio = 13 : 21
Hence, the ratio of bananas to fruit is 13 : 21
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Given the function h(x) = x² − 10x + 21, determine the average rate of change of the function over the interval -1 ≤ x ≤ 10.
Answer: the average rate of change of the function is 23.
Step-by-step explanation:
[tex]h(x)=x^2-10x+21\ \ \ \ \ -1\leq x\leq 10 \ \ \ \ A(x)=?\\\displaystyle\\A(x)=\frac{\Delta y}{\Delta x}=\frac{h(x-g)-h(x)}{g} \\g=x_{max}-x_{min}\\g=10-(-1)\\g=10+1\\g=11.\ \ \ \ \ \Rightarrow\\A(x)=\frac{(x-11)^2-10*(x-11)+21-(x^2-10x+21)}{11} \\A(x)=\frac{x^2-22x+121-10x+110+21-x^2+10x-21}{11} \\A(x)=\frac{231-22x}{11}\\ A(x)=\frac{11*(21-2x)}{11}\\ A(x)=21-2x.\\x=x_{min}\ \ \ \ \ \Rightarrow\\A(x)=21-2*(-1)\\A(x)=21+2\\A(x)=23.[/tex]
Find the value of x
(4x+10)
108° 67° 3x
Angles in quadrilateral add to 360
108 +67 +10 =185
4x + 3x = 7x
185 + 7x = 360
- 185
7x. = 175
÷ 7
x = 25
Check:
4x25 = 100
100 + 67 + 108 = 275
275 + (3x25) = 350 + extra 10 is 360
Hope this helps!
Someone please help me with Graph!!
(My answers keep coming wrong)
Topic= Solving systems of equations by Graphing
See below for the solution to the systems of equations
How to solve the systems of equations?System of equations 1
Here, we have
y = -5x/3 + 3
y = x/3 -3
We start by plotting the graph of both equations
Next, we write out the point of intersection of the equations
See attachment for the equation of the system
From the attached graph, the point of intersection of the equations is (3, -2)
Hence, the solution to the system is (3, -2)
System of equations 2
Here, we have
y = 4x + 3
y = -x -2
We start by plotting the graph of both equations
Next, we write out the point of intersection of the equations
See attachment for the equation of the system
From the attached graph, the point of intersection of the equations is (-1, -1)
Hence, the solution to the system is (-1, -1)
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Jessica is a Custodian at an oracle Arena. She waxes 20m^2 of the floor in 3/5 of an hour. Jessica waxes the floor at a constant rate. How many square metres can she wax per hour?
Answer:
Step-by-step explanation:
Just multiply how much she waxes in 3/5 hour by 5/3. Answer is 100/3 or 33.33 sq. meters per hour
Some randomly selected high school students were asked to name their favorite sport to watch. The table displays the distribution of results. A 2-column table with 5 rows. Column 1 is labeled sport with entries football, basketball, baseball, soccer, none. Column 2 is labeled probability with entries 0.23, 0.18, 0.26, 0.17, 0.16. What is the probability that a student chose football given that they like watching sports? 0.16 0.23 0.27 0.77
The probability that a student chose football given that they like watching sports is: c. 0.27.
Conditional ProbabilityUsing this formula
P[Like (Football)/Like (Sport)]
Where:
P=Probability
Like (Football)=0.23
Like (Sport)=0.23+0.18+0.26+0.17=0.84
Let plug in the formula
P[Like (Football)/Like (Sport)]=0.23/0.84
P[Like (Football)/Like (Sport)]=0.27
Therefore the probability that a student chose football given that they like watching sports is: c. 0.27.
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Answer:
C.
Step-by-step explanation:
Complete the steps in order to write the inverse of f(x)=x+5
=x45
1.
Writing the Inverse of a Function
2.
3,
1-x-5
The equation of the inverse function of the function f(x) = x + 5 is f'1(x) = x - 5
What are inverse functions?Inverse functions are the opposite of an original equation. This means that for a function f(x), the inverse of the function f(x) is f-(x); it also represents the opposite function
How to determine the inverse functions?The function f(x) is given as
f(x) = x + 5
As a general rule, we start by writing f(x) as a variable (say f(x) = y).
So, the equation of the function becomes
y = x + 5
The next step is to switch/swap the positions of x and y in the above equation y = x + 5
The equation becomes
x = y + 5
The next step is to make y the subject of the formula in the above equation x = y + 5
The equation becomes
y = x - 5
This is done by subtracting 5 from both sides of the equation.
So, we have:
y = x - 5
Express as an inverse function
f'1(x) = x - 5
Hence, the inverse function of the function f(x) = x + 5 is f'1(x) = x - 5
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If the first two angles of a triangle measure 37° and 104°, what is the measurement of the third?
Answer:
67
Step-by-step explanation:
All triangles have three angles. The sum of the three angles should equal up to 180 degrees.
108-104-37= 67
if b=7, what is the value of the expression2(10-b)?
Answer: 6
Step-by-step explanation: Since we substitute the b with 7, 10-7= 3. Since the 2 is next to the parentheses, we multiply 3 by 2, getting 6.
Hey there!
2(10 - b)
= 2(10 - 7)
= 2(10) + 2(-7)
= 20 - 14
= 6
OR
2(10 - b)
= 2(10 - 7)
= 2(3)
= 6
Therefore, your answer should be: 6
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Which number best represents the slope of the graphed line?
A graph is a line that extends from second quadrant to fourth quadrant through left parenthesis 0, 2 right parenthesis, and left parenthesis 0.5, 0 right parenthesis.
The number that best represents the slope of the graphed line that is given is: -4.
What is the Slope of a Line?The slope of a line is the ratio of the vertical distance to the horizontal distance across the line. It is calculated using the formula:
Slope (m) = rise/run = change in y / change in x = (y2 - y1)/(x2 - x1)
Given the two points on a coordinate plane as shown in the mage below, let:
(x1, y1) represent (0, 2)
(x2, y2) represent (0.5, 0)
Plug in the values
Slope (m) = change in y / change in x = (0 - 2) / (0.5 - 0)
Slope (m) = -2/0.5
Slope (m) = -4
Therefore, we can state that, the number that best represents the slope of the graphed line that is given is: -4.
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The actual answer is C.1/2
chust mee am a doktor
Answer each question and tell your reasoning.
a. Is 60% of 400 equal to 87?
b. Is 60% of 200 equal to 87?
c. Is 60% of 120 equal to 87?
2. 60% of x
is equal to 87. Write an equation that expresses the relationship between 60%, x
, and 87. Solve your equation.
Equation:
x=
3. Write an equation to help you find the value of each variable. Solve the equation.
60% of c
is 43.2.
Equation:
c=
38% of e
is 190.
Equation:
e=
Answer:
Step-by-step explanation:
400*60% can be rewriten as 400×0.6 which is 240, so a is false.
the same steps can be repeated for b and c
b) 200*0.6=120, therefore is false
c) 120*0.6=72, therefore is false
2)
[tex]60 percent * x=87\\0.6x=87\\x=\frac{87}{0.6} \\\\x=145[/tex]
Now we check the answer by using the same steps in problems a,b,c
[tex]145*0.6=87\\87=87[/tex]
3)
[tex]0.6c=43.2\\c=\frac{43.2}{0.6} \\c=72[/tex]
and finally
[tex]0.38e=190\\e=\frac{190}{0.38} \\e=500[/tex]
A private grassland has an area of 2/5km squared. The owner of the garden buys an extra of 1/3km squared of land from the neighbour to make his grassland bigger. What is the new size of the grassland?
Answer:
11/15 km
Step-by-step explanation:
Simply sum the areas:
2/5 + 1/3 = (6 + 5)/15 = 11/15
use substitution to solve the system 3x+8y = -56 2x-y = 7
Answer: x = 0 ; y = -7
Step-by-step explanation:
Given equation:
1) 3x + 8y = -56
2) 2x - y = 7
Subtract 2x on both sides of 2) equation to isolate y-value
2x - y - 2x = 7 -2x
-y = 7 - 2x
Divide -1 on both sides of 2) equation
-y / -1 = (7 - 2x) / -1
y = 2x - 7
Current system
1) 3x + 8y = -56
2) y = 2x - 7
Substitute 2) equation into the y-value of 1) equation
3x + 8 (2x - 7) = -56
Simplify by distributive property
3x + 8 × 2x - 8 × 7 = -56
3x + 16x - 56 = -56
Combine like terms
19x - 56 = -56
Add 56 on both sides
19x - 56 + 56 = -56 + 56
19x = 0
Divide 19 on both sides
19x / 19 = 0 / 19
[tex]\Large\boxed{x=0}[/tex]
Substitute the x-value into one of the equations to find the y-value
2x - y = 7
2 (0) - y = 7
0 - y = 7
-y = 7
[tex]\Large\boxed{y=-7}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Given any two events, e1 and e2, what does the probability p(e1 ∪ e2) represent?
The equation of P(e₁ ∪ e₂) describes the condition that the mutually exclusive event stands one of the events occurs, or both occur.
What are Mutually Exclusive events?Mutually Exclusive events are described as in probability the particular addition rule exists practical when two occurrences exist incompatible with one another. It claims that the probability of either event exists equivalent to the probability of each possibility separately.
If e₁ and e₂ stand said to be mutually exclusive events then the probability of an event e₁ happening or the probability of event e₂ occurring exists given as P(e₁) + P(e₂) :
P(e₁ ∪ e₂) = P(e₁) + P(e₂)
Therefore, the equation of P(e₁ ∪ e₂) describes the condition that the mutually exclusive event stands for one of the events that happens, or both happen.
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A company estimates that its cost and revenue can be modeled by the functions C)-0.75x+20,000
and R(x)-1.50x where x is the number of units produced. The company's profit, P, is modeled by
P(z) R(x)-C(z). Find the profit function P(x).
Let C(x) = -0.75x + 20,000 and R(x)= -1.50x then the profit function exists noted as P(x) = R(x) - C(x)
P(x) = -1.50x - (-0.75)x + 20,000
P(x) = -0.75x + 20000
Therefore, the profit function exists -0.75x + 20000.
How to find profit function?
The profit function can be estimated by subtracting the cost function from the revenue function. Let profit be expressed as P(x), the revenue as R(x), the cost as C(x), and x as the number of items traded. Then the profit function exists noted as P(x) = R(x) - C(x).
Given:
C(x) = -0.75x+20,000 and R(x)= -1.50x
P(x) = R(x) - C(x)
= -1.50x - (-0.75)x + 20,000
= -1.50x + 0.75x + 20,000
Apply rule -(-a) = a
= -1.5x + 0.75x + 20000
Add similar elements:
-1.5 x + 0.75x = -0.75x
P(x) = -0.75x + 20000
Therefore, the profit function exists -0.75x + 20000.
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Dagogo uploads 333 videos on his channel every month. each video averages 151515 minutes in length and gets an average of 150{,}000150,000150, comma, 000 new views. the average ratio of likes-to-views of dagogo's videos is 1:51:51, colon, 5. dagogo wants to reach a total of 9{,}000{,}0009,000,0009, comma, 000, comma, 000 views on his channel. assuming these rates continue, for how many months does dagogo need to upload videos to get to 9{,}000{,}0009,000,0009, comma, 000, comma, 000 views on his channel?
To acquire 90000000 views on his channel, he has to upload 20 videos every month.
According to the given information:Every month, he posts 3 videos to his channel. An average number of people watch each video. = 1500000
In search of:
How many months must pass before he begins to receive 90,000,000 views on his channel?
Step 1
On his channel, he posts three videos each month.
The average number of views per video is.
3 Videos Receive Views
= 3 * 1500000
= 4,500,000 Views
Number of 4,500,000 views each month
Complete 90000000 Views
Step 2
Total Views/Months = Total Views/Total Views
Days in a month = 90000000/4500000
= 20
20 Monthly months in the number
To acquire 90000000 views on his channel, he has to upload 20 videos every month.
20 Months is the right response, so.
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Csn u please help me o have no idea
Answer:
D.= √29
Step-by-step explanation:
Greetings!The distance between the two complex numbers,
Z₁=a+bi and Z₂=c+di in the complex plane is
[tex]d = \sqrt{(c - a) {}^{2} + (d - b) {}^{2} } [/tex]
In the Cartesian plane, the distance between, one point and other is (x₁,y₁) and (x₂,y₂) is the distance formula is
[tex]d = \sqrt{(X₂-X₁)² + (Y₂-Y₁)²} [/tex]
To find the distance between the two complex numbers using the formula
[tex]d = \sqrt{(c - a) {}^{2} + (d - b) {}^{2} } [/tex]
where,
a=4b=3c=6d=-2[tex]d = \sqrt{(a - b) {}^{2} + (d - b) {}^{2} } \\ d = \sqrt{(6 - 4) {}^{2} + ( - 2 - 3) {}^{2} } \\ d = \sqrt{(2) {}^{2} + ( - 5) {}^{2} } \\ d = \sqrt{4 + 25} = \sqrt{29 \\ } [/tex]
25) Every month the cafeteria orders 120 gallons of milk and 220 gallons of chocolate milk. What is the ratio of milk to chocolate milk as a fraction in simplest form?
Answer:
Step-by-step explanation:
120:220
2 will go into 120 60 times and go into 220 110 times. So your answer comes down to;
60:110
10 will go into 60 6 times and go into 110 11 times So your answer comes down to;
6:11
That is your final answer 6:11
What angle of descent ( depression) should the pilot use to safely bring the plane to the airport runway? The plane is 10,000 feet above the ground and is a little more than 30 miles ( approximately 160,000 feet) from the airport. Write an equation and show work . Round the angle measure to the nearest whole degree. ( Picture is not drawn to scale )
Answer:
4 degrees ( to nearest degree).
Step-by-step explanation:
The trig ratio you want is the tangent.
tan x = 10,000 / 160,000 where x is the angle of depression.
tan x = 0.0625
x = 3.576 degrees.
From the top of a 6m house, the angle of elvation to the top of a flappole is across the street is 9 degrees. the angle of depression is 22 degrees to the base of the flapole. Redraw the diagram below and label all the angles. How tall is the flagpole? Round naswer to one decimal place.
The height of the flag pole which is described as in the task content is; 8.2m.
What is the height of the flagpole as described from the top of the 6m house?The horizontal distance between the 6m house and the flagpole in discuss can be evaluated by means of the angle of depression and trigonometric identity, tan as follows;
tan 22° = 6/x
x = 6/tan 22 = 14.9m.
Consequently, the horizontal distance from the top of the house to the top of the flagpole is therefore;
tan 9° = y/14.9
y = 14.9 tan 9° = 2.2m
Ultimately, the height of the flagpole is; 6+2.2 = 8.2m.
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Circle T is shown. Line segment Q S is a diameters. Point R is opposite of point T. Lines are drawn from points Q and S to point R to form a right triangle. Angle Q R S is a right angle.
The measure of arc QS is (4x – 18)°.
What is the value of x?
40.5
49.5
94.5
180
The value of angle x of the given cyclic segment is; 49.5°
How to find the angle of an arc?We are given the measure of the angle of arc QS as (4x – 18)°
Now, to find the measure of arc QS, this angle is to be equal to 180° and as such;
Thus;
(4x – 18)° = 180°
4x - 18 = 180
4x = 180 + 18
4x = 198
x = 198/4
x = 49.5°
The angle subtended by the arc at the center of a circle with center C is the angle of the arc. It is denoted by. m AB, where A and B are the endpoints of the arc. With the help of the arc length formula, we can find the measure of arc angle.
The formula to measure the length of the arc is;
Arc Length Formula (if angle θ is in degrees); s = 2πr (θ/360°)
Arc Length Formula (if θ is in radians) s = ϴ × r.
Thus, the value of x of the given cyclic segment is; 49.5°
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I need help here’s a picture can somone explain what I need to do??
Answer:
176 square feet
Step-by-step explanation:
add the areas of the rectangle and triangle
rectangle area is
16 times 8 which is
128
rectangle area is
1/2 times 12 times 8 which is
48
then add them
128 plus 48 is
176 square feet
Assume that adults have iq scores that are normally distributed with a mean of μ=100 and a standard deviation σ=15. find the probability that a randomly selected adult has an iq less than 130
The probability that a randomly selected adult has an IQ less than 130 is 0.9332
For given question,
We have been given adults IQ scores that are normally distributed with a mean of μ = 100 and a standard deviation σ = 15.
We need to find the probability that a randomly selected adult has an IQ less than 130
Sketch the curve.
The probability that X < 130 is equal to the area under the curve which is less than X = 130
Since μ = 100 and σ = 15 we have:
⇒ P ( X < 130 ) = P ( X- μ < 130 - 100 )
⇒ P ( X < 130 ) = P((X− μ)/ σ < 130 - 100/20 )
Since (X-μ)/σ = Z and (130 - 100)/20 = 1.5 we have:
P (X < 130) = P (Z < 1.5)
Now, we use the standard normal table to conclude that:
P (Z < 1.5) = 0.9332
Therefore, the probability that a randomly selected adult has an IQ less than 130 is 0.9332
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What is the following simplified product? Assume x 20.
(√6x² +4√8x³)(√9x-x√5x^5)
O 3x√√6x+x²√30x+24x²2x+8x³10x
O 3x√6x+x√30x+24x²√2+8x5/10
O 3x√√6x-x+√30x+24x² √2-8x² 10
O3x6x-x30x+24x²2x-8x510x
The simplified product of (√6x² +4√8x³)(√9x-x√5x^5) is 3x√6x + 24x^2√2 - x^4√30x - 8x^5√10
How to determine the simplified product?The product expression is given as:
(√6x² +4√8x³)(√9x-x√5x^5)
Evaluate the exponents
(√6x² +4√8x³)(√9x-x√5x^5) = (x√6 +8x√2x)(3√x - x^3√5x)
Expand the brackets
(√6x² +4√8x³)(√9x-x√5x^5) = x√6 * 3√x + 8x√2x * 3√x - x√6 * x^3√5x - 8x√2x * x^3√5x
This gives
(√6x² +4√8x³)(√9x-x√5x^5) = 3x√6x + 24x^2√2 - x^4√30x - 8x^5√10
Hence, the simplified product of (√6x² +4√8x³)(√9x-x√5x^5) is 3x√6x + 24x^2√2 - x^4√30x - 8x^5√10
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Eduro solved -4x > 120 by adding 4 to each side lf the inequality what mistake did he make?
Eduro's mistake of solving the inequality -4x > 120 is adding 4 to both sides instead of dividing both sides by -4
Inequalityminus four x greater than 120
-4x > 120
divide both sides by -4x < 120/-4
There is a change in the inequality sign from greater than to less than because the inequality is been divided by -4
x < -30
Check:
-4x > 120
-4(-30) > 120
120 > 120
Therefore, Eduro's mistake of solving the inequality -4x > 120 is adding 4 to both sides instead of dividing both sides by -4
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can someone help me please?
Answer:
the answer to the question is answer C
Answer:
Step-by-step explanation:
B is your answer
can you please help me with the question the link is down below
Answer:
output = 9
Step-by-step explanation:
add 5 to the input to obtain output
output = 4 + 5 = 9
Quick algebra 1 question for 10 points!
Only answer if you know the answer, quick shout-out to tariqareesha2 and MrBrainly, tysm for the help!
[tex]denote \: by \: s \: the \: cost \: of \: a \: sweatshirt \\ denote \: by \: t \: the \: cost \: of \: a \: t \: shirt[/tex]
[tex]3t + 7s = 240.5 \\ 6t + 5s = 220[/tex]
[tex] - 6t - 14s = - 481 \\ 6t + 5s = 220[/tex]
[tex] - 9s = - 261 \\ s = \frac{ - 261}{ - 9} = 29 \: dollars[/tex]
[tex]3t + 7(29) = 240.5 \\ [/tex]
3t + 203 = 240.5
3t = 37.5
t = 12.5 dollars
a basketball player signs a cantract that pays him $16 million over 4 year. What is his average pay per year?
the average pay per year is $4 million
Answer:
The average is 4millon
Step-by-step explanation:
because 16 millon divide by 4 =4
ez
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)? 3 i startroot 11 endroot negative 3 i startroot 11 endroot 3 minus startroot 11 endroot negative 3 minus startroot 11 endroot
Answer:
C
Step-by-step explanation:
C
Answer:
Step-by-step explanation:
its c