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mash [69]
3 years ago
8

What is AB to the nearest meter

Mathematics
2 answers:
siniylev [52]3 years ago
8 0

Answer:

15m

Step-by-step explanation:

So make this simpler, imagine two triangles the small one with dimensions 5,4,5 and the larger one with dimensions 15,12,AB.

To find the distance of AB we can use the common ration between the similar triangles.

r = common ratio

AB = 5r

we know that r = 3, because of the other side lengths

5r = 15

and 4r = 12,

so AB = 5r

and if r = 3 then AB =15

sashaice [31]3 years ago
6 0

Answer:

C. 15

Step-by-step explanation:

Small triangle is similar to larger one so we can use the similarity ratio to solve the question:

CE/CA = DE/AB

4/12 = 5/AB cross multiply expressions

4AB = 60 divide both sides by 4

AB = 15

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Find the last one please!!!Will mark brainlyist if right
JulsSmile [24]

Answer:

129.6º

Step-by-step explanation:

7 + 10 + 2 + 6 + 11 = 36%

QAV = 36% * 360º = 129.6º

3 0
3 years ago
Solve the following equations: 5y/(1 1/3) = y−0.9/0.2
sergejj [24]
The answer is y= -1.63
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Toni has exactly $2.00 in nickels and dimes. She has twice as many dimes as nickels. How many of each does she have?
Ivahew [28]
She has 8 nickles and 16 dimes. 8 * .05 = .40 and 16 * .10= 1.60... 1.60+.40 =2.00 :)
5 0
4 years ago
The Diagram shows the net of a square pyramid and its dimensions ​
Serjik [45]

<u>Answer:</u>

<h2>SA = 84 ft²</h2>

<u>Explanation:</u>

SA = the area of one side of the pyramid times 4 + the area of the base of the pyramid

Area of a triangle = (height × base)/2

Area of a sqaure = lenght²

given:

h = 4 ft | b = 6 ft | l = 6 ft

SA = 4(h×b×1/2) + l²

SA = 4(4×6×1/2) + 6²

SA = 4×12 + 36

SA = 48 + 36

SA = 84 ft²

3 0
3 years ago
A movie theater complex gave a poll as viewers exited from two theaters showing the same film. They had a 20% response rate from
sp2606 [1]

Answer:

Let´s define the variables:

x = number of people in theater A

y = number of people in theater B

We know that a 20% (or 0.2 in decimal form) of the people in theater A answered the survey, then the number of people from theater A that answered the survey is: Na = 0.2*x

We know that a 30% (or 0.3 in decimal form) of the people in theater B answered the survey, then the number of people from theater B that answered the survey is: Nb = 0.3*y

There where 800 people in total (counting from the two theatres)

Then x + y = 800.

A) In this case we have:

Na = Nb

this means that:

0.2*x = 0.3*y

and we also have the equation:

x  + y = 800

To solve this, we need to isolate one variable in one of the equations, i will isolate x in the second equation:

x = 800 - y

And now we can replace this in the other equation to get:

0.2*(800 - y) = 0.3*y

We need to solve this for y:

160 - 0.2*y = 0.3*y

160 = 0.3*y + 0.2*y = 0.5*y

160/0.5 = y = 320

Then there where 320 people in theater B, and:

x + y = 800

x + 320 = 800

x = 800 - 320 = 480

There where 480 people in theather A.

B) Now we have:

x = 440

y = 360

then:

Na = 0.2*440 = 88

In theater A, 88 people answered the survey.

Nb = 0.3*360 = 108

In theater B, 108 people answered the survey.

In total, 88 + 108 = 196 people answered the survey.

5 0
3 years ago
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