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Yakvenalex [24]
3 years ago
10

Sonya got 8 out of 10 questions right on a quiz. She got the same score on a quiznthay had 20 questions. How many many questions

did sobya get right on the secind quiz? How many questions did she get wrong on the second quiz
Mathematics
2 answers:
jok3333 [9.3K]3 years ago
8 0

Answer:

16 questions right 4 questions wrong

Step-by-step explanation:

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

slava [35]3 years ago
7 0

Answer:742

Step-by-step explanation:

add

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Question:
aivan3 [116]

Answer:

part A) The scale factor of the sides (small to large) is 1/2

part B) Te ratio of the areas (small to large) is 1/4

part C) see the explanation

Step-by-step explanation:

Part A) Determine the scale factor of the sides (small to large).

we know that

The dilation is a non rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional

so

Let

z ----> the scale factor

\frac{CB}{C'B'}=\frac{CD}{C'D'}=\frac{BD}{B'D'}

The scale factor is equal to

z=\frac{CB}{C'B'}

substitute

z=\frac{4}{8}

simplify

z=\frac{1}{2}

Part B) What is the ratio of the areas (small to large)?

<em>Area of the small triangle</em>

A=\frac{1}{2}(2)(4)=4\ units^2

<em>Area of the large triangle</em>

A=\frac{1}{2}(4)(8)=16\ units^2

ratio of the areas (small to large)

ratio=\frac{4}{16}=\frac{1}{4}

Part C) Write a generalization about the ratio of the sides and the ratio of the areas of similar figures

In similar figures the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In similar figures the ratio of its areas is equal to the scale factor squared

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3 years ago
Please help!!<br> Find the volume of the sphere
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Hi , your answer is V = 4/3 πr³.

Hope this helps

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ASAP JUST ANSWER NO WORK
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Use desmos lol it’s a graphing calculator app
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