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vovangra [49]
3 years ago
9

Experts/ace/trusted helpers/geniuses helpp mee plz

Mathematics
2 answers:
maria [59]3 years ago
8 0

inside angles need to equal 180

180-75-40 = 65

now the question mark and 65 need to equal 180

180-65 = 115

 answer is 115

sertanlavr [38]3 years ago
4 0
The angles of a triangle must add to 180. We know 2 of the angles, so by subtracting them both from 180 we can find the remaining angle.

180 - 75 - 40 = 65

The 65 degree angle and the angle we are looking for are supplementary angles. This means they add to 180.

180 - 65 = 115

The answer is 115.






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Help! What is the average rate of change of f(x)=x^2+3x+6 over the interval -3 less-than-or-equal-to x less-than-or-equal-to 3?
Makovka662 [10]

Answer:

The average rate of change of the function over the interval is 5.

Step-by-step explanation:

Average rate of change of a function:

The average rate of change of a function f(x) over an interval [a,b] is given by:

A = \frac{f(b)-f(a)}{b-a}

Interval -3 less-than-or-equal-to x less-than-or-equal-to 3

This means that a = -3, b = 3

f(x) = x^2 + 3x + 6

So

f(b) = f(3) = (3)^2 + 3(3) + 6 = 9 + 9 + 6 = 24

f(a) = f(-3) = (-3)^2 + 3(-3) + 6 = 9 - 9 + 6 = 6

Average rate of change

A = \frac{f(b)-f(a)}{b-a} = \frac{24+6}{3-(-3)} = \frac{30}{6} = 5

The average rate of change of the function over the interval is 5.

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3 years ago
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marishachu [46]
The second one, and you as well ☺️
8 0
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The Empire State Building weights about 7.3 x 10 ^8
kvasek [131]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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FromTheMoon [43]

We simply replace a with -9

k(-9) = 4 * -9 - 4

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3 years ago
What is -3/4 + (-3/14) Give your answer as a reduced fraction
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Answer:

- \frac{27}{28}

Step-by-step explanation:

hope this was the answer you were looking for.

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