What is the graph's approximate rate of change? -1/2 12 2 -2

Mathematics

1 answer:

geniusboy [140]3 years ago

5 0

The answer is 1/2 i did the test and got it right can i get brainliest please

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Why do we use the distributive property when subtracting expressions?

pochemuha

Consider the example

(3x+5) - (x-10)

When we subtract off the (x-10), we are basically subtracting off x and also subtracting off -10. This is the same as adding on 10 because -(-10) = 10

So we would have these steps

(3x+5)-(x-10)

3x+5-x+10

2x+15

Often students forget to distribute the negative all the way through and would have 3x+5-x-10 as an incorrect step. You need to multiply that -1 through to each term, so that's why the distributive property is used.

3 0

3 years ago

Read 2 more answers

Need help in this please

Alona [7]

Hmmm this is a little hard I believe c

8 0

3 years ago

1. There are 78 sophomores at a school. Each is required to take at least one year of either chemistry or physics, but they may

SVETLANKA909090 [29]

We are given that there are a total of 78 students. If we set the following variables:

$\begin{gathered} C=\text{students only in chemestry} \\ P=\text{students only in physics} \\ PC=\text{students in physics and chemistry} \end{gathered}$

Then, the sum of all of these must be 78, that is: