The 32° measure of arc CB, and m<BCD which is 52° gives m<BAC and m<ACB as 16° and 90° respectively, from which we have;
m<CBA = 74°m<ACD = 38°Which circle theory can be used to find the required angles?First part;
Given;
Angle subtended by arc CB = 32°
m<BCD = 52°
Based on circle theory, we have;
Angle subtended by an arc at the center of a circle is twice the angle subtended at the circumferenceTherefore;
Arc CB = 2 × m<BAC
Which gives;
Arc CB = 32° = 2 × m<BAC
m<BAC = 32° ÷ 2 = 16°
Angle subtended by the diameter at the circumference is 90°.
Therefore;
m<ACB = 90°
In triangle ∆ABC, we have;
m<ACB + m<BAC + m<CBA = 180°
m<CBA = 180° - (m<ACB + m<BAC)
Therefore;
m<CBA = 180° - (90° + 16°)
m<CBA = 180° - (90° + 16°) = 74°
m<CBA = 74°Second part;
The arc subtending m<ACD is AB which is also the diameter.
Angle formed by the diameter, which is a straight line = 180°
Therefore;
Angle subtended at the center by arc AB = 180°
Angle subtended at the circumference, m<ACB is therefore;
m<ACB = 180° ÷ 2 = 90°
A
m<ACB = m<ACD + m<BCD (Angle addition property)
Therefore;
90° = m<ACD + 52°
m<ACD = 90° - 52° = 38°
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A line has a slope of 2 and passes through the point -3, 6 what is the equation in slope intercept form
Answer:
y=2x+12
Step-by-step explanation:
help me 20 points and I will mark brainlyist
A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numerical values that are placed at equal intervals along its length.
What is a line plot?A line plot can be defined as a type of graph that is used to graphically represent a data set above a number line, while using crosses, dots, or any other mathematical symbol.
What is a mean?A mean is also referred to as an arithmetic average and it can be defined as a ratio of the sum of the total number in a data set (population) to the frequency of the data set.
Mathematically, the distance between the means of both classes A and B is given by:
Distance = Mean of class A - Mean of class B
Distance = 12 - 4
Distance = 8.
The mean absolute deviation (MAD) for class A is given by:
MAD A = 1/9[2(9 - 12) + (10 - 12) + (11 - 12) + (12 - 12) + (13 - 12) + (14 - 12) + 2(15 - 12)]
MAD A = 1/9[2(3) + (2) + (1) + 0 + (1) + (2) + (1) + 2(3)]
MAD A = 1/9[6 + 2 + 1 + 1 + 2 + 1 + 6]
MAD A = 1/9 × [18]
MAD A = 18/9
MAD A = 2.
Also, the mean absolute deviation (MAD) for class B is given by:
MAD B = 1/9[2(1 - 4) + (2 - 4) + (3 - 4) + (4 - 4) + (5 - 4) + (6 - 4) + 2(7 - 4)]
MAD B = 1/9[2(3) + 2(2) + (1) + (0) + (1) + (2) + 2(3)]
MAD B = 1/9[6 + 4 + 1 + 0 + 1 + 2 + 6]
MAD B = 1/9 × [18]
MAD B = 18/9
MAD B = 2.
Therefore, distance between the means = four (4) times the MAD.
Distance = Means × MAD
8 = 4 × 2.
In conclusion, we can infer and logically deduce that there is no overlap and the distance between the means of both players A and B is between one (1) times the MAD and five (5) times the MAD.
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The graph of y=√x is shifted 2 units down and 3 units left. Which equation represents the new graph?
A. y=√x-2-3
B. y=√x+2-3
C. y=√x+2+3
D. y=√x+3+2
the equation that represents the new graph is:
g(x) = √(x - 3) - 2
Which equation represents the new graph?
Here we start with the function:
y = f(x) = √x
First, we shift it 2 units down, then the new equation will be:
g(x) = f(x) - 2
Now we apply a horizontal shift, this time we shift the graph 3 units to the left, then the new equation is:
g(x) = f(x - 3) - 2
Now we replace f(x) = √x to get:
g(x) = √(x - 3) - 2
That is the equation that represents the new graph.
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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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The line represented by 2y = x + 8 is dilated by a scale factor of k centered at the origin, such that the image of the line has an equation of y-1/2x=2. What is the scale factor?
The scale factor of the given dilation transformation is calculated as; 1/2
How to use the scale of dilation?We know that from transformation that a dilation is a non - rigid transformation that produces similar figures.
If two lines are similar, then the lines are parallel and parallel lines always have the same slope.
Thus;
Line A has the formula; 2y = x + 8
Writing it in slope intercept form gives us;
y = 0.5x + 4 ------(1)
Thus;
slope of the line A is m = 0.5
y-intercept of the line A is b = 4
Line B has the equation;
y - ¹/₂x = 2
Rearranging in Slope Intercept form gives us;
y = ¹/₂x + 2
Thus;
slope of the line B is m = 0.5
y-intercept of the line B is b = 2
Now, it should be noted that the y-intercept of line A multiplied by the scale factor k must be equal to the y-intercept of line B. Thus;
4k = 2
k = 2/4
k = ¹/₂
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√32x+1
= 9x-2 minta tolong dengan ini
We have:
√32x + 1 = 9x - 2
<=> √32x - 9x = -2 - 1
<=> (√32 - 9)x = -3
<=> x = -3/(√32 - 9) = (27+12√2)/49
ANSWER: x = (27+12√2)/49
P/s: i'm not pretty sure
Ok done. Thank to me :3
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
Suppose that two fair dice are rolled. find the probability that the number on the first die is a 1 or the number on the second die is a 4
Answer:
1/36
Step-by-step explanation:
Assuming the dice has 6 sides in total, we can set up a probability for each scenario.
The chances of the dice landing on 1 will be 1/6, since there are 6 total faces. Same goes for the second die and landing on 4.
Now that we have our 2 probabilities, we multiply them to get the final probability. 1/6 x 1/6 = 1/36.
Instructions: State what additional information is required in order
to know that the triangles in the image below are congruent for the
reason given.
Reason: AAS Postulate
∠KJI≅ZJX is the additional information.
What are the AAS congruency criteria?
⇒ AAS stands for Angle-Angle-Side. When two angles and a non-included side of a triangle are equal to the corresponding angles and sides of another triangle, then the triangles are said to be congruent
We have been given that
⇒ kJ=ZJ
⇒∠KJI=∠ZJX (vertically opposite angle)
And we require one more angle which can't be on the non-included side
so we have only one angle that can satisfy this
⇒∠JIK=∠JXZ
⇒ Now we can say that △KJI ≅ △ZJX is congruent with AAS congruency criteria
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Geometry: complete this proof, ASAP!!!
Answer:
By definition, angles A and 1 are corresponding angles and angles B and 1 are consecutive angles. By the corresponding angles postulate, angles A and 1 are congruent, and by the consecutive angles theorem, angles B and 1 are supplementary. By the definition of supplementary angles, measures of angle B and 1 add up to 180 degrees (m<B + m<1 = 180). By definition of congruent angles, angles A and 1 have same measurement (m<A = m<1). By substitution property of equality, measures of angles A and B add up to 180 degrees (m<A + m<B = 180). By definition of supplementary angles, angles A and B are supplementary.
find the value of n: [tex]\frac{10n}{-5} = -4[/tex]
Answer:
n = 2
Step-by-step explanation:
cross multiply
-5 times -4 = 20
10n = 20
n = 2
[tex]\bf{Move \ the \ negative \ symbol \ to \ the \ left. }[/tex]
[tex]\boldsymbol{\sf{-\dfrac{10n}{5}=-4 \ \ \longmapsto \ \ [Split] }}[/tex]
[tex]\boldsymbol{\sf{-2n=-4 }}[/tex]
[tex]\bf{Divide \ both \ sides \ by \ -2. }[/tex]
[tex]\boldsymbol{\sf{n=\dfrac{-4}{-2} }}[/tex]
[tex]\bf{Two \ negatives \ make \ a \ positive. }[/tex]
[tex]\boldsymbol{\sf{n=\dfrac{4}{2} \ \ \longmapsto \ \ [Split] }}[/tex]
[tex]\blue{\boxed{\boldsymbol{\sf{Answer \ \ \longmapsto \ \underline{n=2}}}}}[/tex]
3 bells ring at interval of 12,15 and 18 minutes.Respectively they all ring together at 6am,at what time will they ring together? again?
The least common multiple of two or more natural numbers is the least common multiple of all of them. This concept has historically been linked to natural numbers, but can be used for negative integers or complex numbers.
We calculate the least common multiple, by simultaneous decomposition, this method consists of extracting the common and non-common prime factors, therefore
The lcm of 12,15, 1812 - 15 - 18 | 2 6 - 15 - 9 | 2 3 - 15 - 9 | 3 1 - 5 - 3 | 3 1 - 5 - 1 | 5 1 - 1 - 1 |L.c.m.(12,15,18)= 2² × 3² × 5 = 180 min
The least common multiple of 12, 15, and 18 is 180.
Convert the minutes to hours, for this we apply the rule of 3:
x = 180 * 1 / 60 = 3 hrAs the bells all together ring at 6 am, so we add
6 a.m + 3 = 9Answer: The bells are rung together again at 9 in the morning.
In the past Reagan got paid 214,350 annually. Since switching to a new career she has been making 347,247 annually. What is the percent of increase in Reagan’s pay
Answer: Reagan's pay was increased by 62%
Step-by-step explanation:
First, lets find the difference between the two pays:
$347,247 - $214,350 = $132,897
Let 214350 = 100%
Dividing 132,897 by 214350 to find the percent increase
[tex]\bold{\frac{132,897}{214,350} }=0.62\times100=62[/tex]
Therefore, Reagan's pay was increased by 62%
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
If a1=6 and a5=12, what does a3=?
a3=9
assuming the pattern is constant, a3 is right in the middle of a1 and a5 so the answer would be right in the middle of 6 and 12. the average of 6 and 12 is 9, so a3=9.
hope this helps!
Ben, Rob, Kelly, Carla and Manu organised a pizza party for their business group, They ordered one vegetarian, one cheese, and one Nutella pizza. After the party, three-fourths of vegetarian pizza, five-eights of cheese pizza, and 11/12 of
Nutella pizza are remaining. Once all guests left, they decided to split the pizza equally among themselves, what
fraction of the whole pizza does each person get?
Answer:
11/24 ths each
Step-by-step explanation:
Add the portions left...then divide by the five of them
3/4 + 5/8 + 11/12 = ? must find common denominator (24) and convert
(18 + 15+22) / 24 = 55/24 now divide by 5 (which is the same as mult by 1/5)
55/24 * 1/5 = 55/120 now simplify to 11/24
suppose that a 2 by 10 rectangular grid of seats is filled with people. On the
blow of a whistle, all 20 people get up from their current seat and move to an orthogonally
adjacent seat. How many ways are there for everyone to do this so that at the end of the
move, each seat is taken by exactly one person?
There are 20! number of ways for everyone to do this so that at the end of the move, each seat is taken by exactly one person.
People are seated in a 2 by 10 rectangle grid. All 20 persons stand up from their seats and relocate to an orthogonally neighboring one upon the blowing of a whistle.
Now, we have to find the number of possible ways in which each seat is taken up by exactly one person after the move.
As the number of people is 20 and 20 seats are to filled exactly once.
So, the number of ways = 20!
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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 parent function is represented by the table?
Answer:
x^2
Step-by-step explanation:
So there's very two obvious ones we can elimination immediately, that's f(x) = x, and f(x) = |x|. The reason for this is because we can just look at the first ordered pair of (-2, 4). If it was f(x) = x, then the ordered pair would be (-2, -2), but it isn't. Very similar reasoning for f(x) = |x|, except for this function each ordered pair should have the same magnitude or absolute value. So the f(-2) should output 2, since it's the absolute value, but of course this isn't the case since it's 4.
So let's look at 2^x
[tex]2^{-2} = \frac{1}{2^2} = \frac{1}{4}[/tex]
Since the y value is 4 and not 1/4, this is not the parent function
It should be the second option (x^2), and we can double check
(-2)^2 = 4
(-1)^2 = 1
(0)^2 = 0
(1)^2 = 1
(2)^2 = 4
It outputs the same y-values as the table so this is the parent function
If segment fd = 45 units and segment de = 60 units, what is the value of a? round the solution to the nearest hundredth.
The value of 'a' closest to hundredths is 41.41
What is Triangle and its segment?A triangle could also be a polygon with three sides and three angles. The three sides for a triangle DEF shown above, written symbolically as △DEF, are line segments DE, EF, and DF
If three sides of a triangle are adequate to three sides of another triangle, then the triangles are congruent. (2) If three angles of a triangle are respectively adequate to three angles of another triangle, then the 2 triangles are congruent.
According to the given data:Since this is often a right triangle, we'll use trig functions:
cos theta = adjacent / hypotenuse;
cos a=FD/DE;
cos a=45/60.
Taking the inverse of each side:
cos-1(cos a) =cos-1(3/4);
a=41.40962211.
After Rounding to the closest hundredth:
The value of a is 41.41.
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Find the value of the trigonometric ratio. Make sure to simplify the fraction if needed.
generally, tanA=opposite/adjacent
answer:tanC=36/15=12/5
Answer:
[tex]Tan \space\ \theta =\frac{\boxed{12}}{\boxed5}}[/tex]
Step-by-step explanation:
The tangent (Tan) of an angle is the ratio of the opposite side and the adjacent side, so that:
[tex]\boxed{Tan\space\ \theta = \frac{opposite}{adjacent}}[/tex].
In this case, with respect to angle C:
• opposite = AB = 36 units
• adjacent = CB = 15 units.
Substituting the values into the equation:
[tex]Tan \space\ C = \frac{36}{15}[/tex]
= [tex]\bf \frac{12}{5}[/tex] (simplified)
help help help help help help help help help help help
Solving the quadratic equation we conclude that:
The maximum height is 45ft.The rocket is 18 seconds in the air.How to get the maximum height of the rocket?
The height of the rocket is defined by the quadratic equation:
[tex]d = 90t - 5t^2[/tex]
The maximum height is what we get in the vertex of the quadratic equation, such that for this quadratic equation, the vertex is at:
[tex]t = -90/(2*-5) = 9[/tex]
So the maximum height is what we get when we evaluate in t = 9:
[tex]d = 90*9 - 5*9^2 = 45[/tex]
The maximum height is 45ft.
How to get the time in the air?Now we need to solve the equation for the largest value of t:
[tex]d = 90*t - 5t^2 = 0[/tex]
Rewriting it, we get:
[tex]0 = 90*t - 5*t^2\\\\0 = t*(90 - t*5)[/tex]
The maximum solution is what we get when:
0 = 90 - t*5
t = 90/5 = 18
The rocket is 18 seconds in the air.
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Olivia Sells 1/8 ton of copper to recycle♻️. The recycler pays $4 per pound. How much money in dollars, does the recycler pays Olivia for her copper?
The total amount the recycler pays Olivia is $1000.
What is the total amount Olivia is paid?The weight of the copper is expressed as a fraction A fraction is a non-integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.
There is a need to convert tons to pounds:
1 ton = 2000 pounds
1/8 x 2000 = 250 pounds
The total amount that the recycler pays can be determined by multiplying the total pounds by cost per pound.
Total cost = cost per pound x total pound
250 x $4 = $1000
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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
Harvey is analyzing the production cost of a new product launched by his company. The initial production cost was $1,050. The production cost is at its lowest amount, $250, for 200 items, and thereafter increases as the number of items increases. Which of the following graphs represents the production cost of the product?
It would be the bottom left graph
Initial production: 1050
so the graph will be started at 1050 which makes top right graph incorrect
Next, the money at the lowest was 250 which makes the top left and bottom right incorrect.
leaving only the bottom right graph to be correct
Answer:
Graph Y
Step-by-step explanation:
Given information:
Initial production cost = $1,050Lowest production cost = $250 for 200 itemsProduction cost increases after 200 items.The x-axis shows number of items in hundreds.The y-axis shows the cost in dollars.The initial production cost is when the number of items is zero.
Therefore, the y-intercept of the graph will be (0, 1050).
The lowest production cost is the minimum point of the curve.
Therefore, the vertex of the graph will be (2, 250).
The only graph that satisfies these conditions is graph Y (attached).
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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
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]
Please help!!!
The diagram to the right shows a square pyramid. The point C is the centre of the base, and TC is perpendicular to the base. (More information in the screenshot)
(i) The measures of the angles are m ∠ TCM = m ∠ TCQ = m ∠ CMQ = 90°.
(ii) The lengths of sides CM and CQ are 2 cm and 2√2 cm, respectively.
(iii) The angle between the side face and the base is equal to θ = cos⁻¹ (2 / MT) and the angle between the slant edge and the base is θ = cos⁻¹ [2√2 / √(4 + MT²)].
How to analyze a right pyramid
In this problem we have a right pyramid as line segment TC is perpendicular to the base PQRS, which means that any line coplanar with PQRS is perpendicular to line segment TC. i) the measures of the angles are m ∠ TCM = m ∠ TCQ = 90°.
Besides, the base PQRS is a square, which is equivalent to four right triangles with angles 45° - 45° - 90° and each triangle can be divided into two right triangles. Hence, the measure of the angle CMQ is 90°.
ii) The length of the sides can be found by the 45-45-90 theorem, which states that the length of the hypotenuse is √2 times the length of any of the legs:
CQ = (√2 / 2) · PQ
CQ = (√2 / 2) · (4 cm)
CQ = 2√2 cm
CM = (√2 / 2) · (2 √2 cm)
CM = 2 cm
iii) The angle between the side face, one of them contains the line segment MT and the base can be found by the following inverse trigonometric relation: (value of the pyramid height is missing)
θ = cos⁻¹ (CM / MT)
θ = cos⁻¹ (2 / MT) (1)
Similarly, the angle between the slant edge and the base is found by Pythagorean theorem and inverse trigonometric relation: (value of the pyramid height is missing)
θ = cos⁻¹ (CQ / TQ)
θ = cos⁻¹ [2√2 / √(QM² + MT²)]
θ = cos⁻¹ [2√2 / √(4 + MT²)] (2)
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HELP! 25 points!
question is in the file!
please answer asap
Answer:
Option C: x = 6
Step-by-step explanation:
Hi There!
7 + 5 (x - 3) = 22
=> 7 + 5x - 15 = 22
=> 5x = 22 - 7 + 15
=> 5x = 30
=> x = 30/5
=> x = 6
x = 6 makes the statement true.
Thank you,
Eddie
Marcus loves baseball and wants to create a home plate for his house. Marcus needs to calculate the area of the home plate at the ball field so he can reconstruct it when he gets home. Calculate the area of the polygon.
72.5 in2
75.5 in2
83 in2
96 in2
Answer:
83in²
Step-by-step explanation:
This can also be expressed as;
Area of polygon=Area of ∆ABF +Area of rectangle BCDF + Area 0f ∆DEF
For ∆ABF;
Area of ∆ABO=∆AOF
Area of ∆ABF=2×Area of ∆ABO
Area of ∆ABO=1/2×Length×height
=1×4×7/2=28/2=14in
But area of ∆ABF=2×Area of ∆ABO
Area=2×14in=28in.
Area of rectangle;
Area=length×breadth
Area=5in×8in=40in.
Area of ∆DEF=2×Area of ∆EFG
Area=1/2× base× height
Area=1×2.5×6/2
Area=15/2=7.5in.
But area of ∆EFG=2×7.5in
=15in.
Area of polygon=28in+40in+15in=83in