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VARVARA [1.3K]
3 years ago
11

Okay have reposted it.

Mathematics
2 answers:
Delvig [45]3 years ago
6 0

Answer:

13

Step-by-step explanation:

vredina [299]3 years ago
5 0
Angle 14 is vertical :)
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Solve for x. Round to the nearest tenth. ​
kondor19780726 [428]

Answer:

22.8

Step-by-step explanation:

a^{2} +b^{2} =c^{2} \\20^{2} +11^{2} =x^{2} \\400+121=x^{2}\\\sqrt{521} =x\\\\or\\\\22.8 = x

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Rooter Plus charges a $25 service fee plus $40 per hour of work done. Is this a proportional or non-proportional relationship?
Dominik [7]

Answer:

Non-proportional; the rate of change is $40/hour

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u>and the line passes through the origin</u>

Let

x -----> the number of hours

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The equation of the line in slope intercept form is equal to

y=mx+b

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we have

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substitute

y=40x+25

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Non-proportional; the rate of change is $40/hour

5 0
3 years ago
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