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Minchanka [31]
3 years ago
10

How do I do this I’ll mark u brainliest pls ?

Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0

Answer:

1. is a 30 60 90 triangle so x = 30

pardon my bad handwriting for below

2.

STEP 1: subtract the angle you have from 180

STEP 2: add your x values together, if there is a non x number (such as + 10) balance it out on the other side by adding or subtracting

STEP 3: divide so that x has no coeffecient in front of it

STEP 4: substitute x values with the value you got

STEP 5: verify by adding the angles you got, it'll be correct if it equals 180

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Answer:

1

Step-by-step explanation:

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when x = -1, f(-1) = (-1)^2 - 2(-1) - 4 = 1 + 2 - 4 = -1

when x = 4, f(4) = (4)^2 - 2(4) - 4 = 16 - 8 - 4 = 4

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---------------- = -----------------=   --------  = 1

 x4 - x1               4 - (-1)              5

Answer

The average rate of change = 1

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