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4 years ago

9

Suppose that the function f(x)=7x+2 represents the number of cars that drive by in x minutes. How many cars will drive by in 10

minutes
A) 27
b) 70
c)72
d) 90

1 answer:

vredina [299]4 years ago

3 0

Answer:

c) 72

Step-by-step explanation:

the function f(x)=7x+2 represents the number of cars that drive by in x minutes
x = 10
f(10) = 7×10+2 = 70+2 = 72

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defon

Answer:

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Part 2) $m\angle EFB=125^o$

Step-by-step explanation:

Part 1) what is the measure of angle AFE

we know that

The measure of the interior angle is the semisum of the arches that comprise it and its opposite.

<u>Note:</u> In this problem the correct measure of arc EA is 40 degrees (see the picture)

so

$m\angle AFE=\frac{1}{2}(arc\ EA+arc\ DB)$

substitute the given values

$m\angle AFE=\frac{1}{2}(40^o+70^o)=55^o$

Part 2) what is the measure of angle EFB?

we know that

$m\angle AFE+m\angle EFB=180^o$ ---> by supplementary angles (form a linear pair)

so

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$55^o+m\angle EFB=180^o$

$m\angle EFB=180^o-55^o=125^o$

8 0

4 years ago

I need help on how to do this as soon as possible please

AfilCa [17]

Answer:

11

Step-by-step explanation:

m∠1 = m∠2 {Corresponding angles}

78 - 2x = 89 - 3x

Add 3x to both sides

78 - 2x + 3x = 89

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Subtract 78 from both sides

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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xxTIMURxx [149]

For easier calculation,
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3 years ago

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enyata [817]

I would say B.

Hope this helped!

:)

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3 years ago