Which function is linear?

Mathematics

1 answer:

Ann [662]3 years ago

8 0

Answer:

i think its A but i could be wrong

Step-by-step explanation:

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How many adults are needed if there <br> are 72 children

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Answer:

Step-by-step explanation:

72÷2

2 adults per one child

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3 years ago

What is the answer to this question?

jarptica [38.1K]

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Step-by-step explanation:

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On an algebra quiz, Alice got 24 problems correct and 4 incorrect. What is the ratio of correct problems to the total number of

VladimirAG [237]

Answer:

24:28

Step-by-step explanation:

Alice got 24 problems correct.

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3 years ago

In the diagram below, we have $ST = 2TR$ and $PQ = SR = 20$. Find the length $UV$.

Maslowich

Answer:

Step-by-step explanation:

1. $ST=2TR$ and $SR=20,$ then by segment addition postulate

$ST+TR=SR\\ \\2TR+TR=SR\\ \\3TR=20\\ \\TR=\dfrac{20}{3}\\ \\ST=2\cdot \dfrac{20}{3}=\dfrac{40}{3}$

2. Consider triangles PQU and TSU. These triangles are similar by AA similarity theorem (triangles have congruent vertical angles PUQ and TUS and congruent alternate interior angles PQU and TSU). Similar triangles have proportional corresponding sides, so

$\dfrac{QU}{US}=\dfrac{PQ}{ST}=\dfrac{20}{\frac{40}{3}}=\dfrac{60}{40}=1.5$