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RideAnS [48]
3 years ago
12

How do you answer this? (this is for slopes.)

Mathematics
1 answer:
sergey [27]3 years ago
5 0

Answer:

y= 2x + 4

Step-by-step explanation:

We are given an equation of 2x-y+3 =-1 and we need to put into y = mx+b form.

First, we subtract 3 on both sides to get the variables all on one side.

2x-y+(3 - 3)=(-1 -3)\\\\

2x-y = -4

We need to now isolate y on its own so we subtract 2x on both sides.

(2x-2x)-y=(-4-2x)

-y=-2x-4

We almost done! We then need to divide the invisible negative on both sides which is a -1.

\frac{-y}{-1}=\frac{-2x-4}{-1}

y=2x+4

When we divide the the negatives together, we know that two negatives divided together is a positive. Therefore, we get our answer y=2x+4

Hoped this helped!

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Answer:

Most people found the probability of just stopping at the first light and the probability of just stopping at the second light and added them together. I'm just going to show another valid way to solve this problem. You can solve these kinds of problems whichever way you prefer.

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The sum of the probabilities of all of the events has to be 1 because there is a 100% chance that one of these possibilities has to occur, so the probability of being stopped at exactly one light is 1 minus the probability of being stopped at both lights minus the probability of being stopped at neither.

Because the lights are independent, the probability of being stopped at both lights is just the probability of being stopped at the first light times the probability of being stopped at the second light. (0.4)(0.7) = 0.28

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Step-by-step explanation:

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