3 years ago

Can anyone help me answer this

Mathematics

1 answer:

Sedbober [7]3 years ago

5 0

I'm not sure what the question is, but if it is proportions, then your anser is .5 feet every 2 hours

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Elaine earns $9.50 for the first 10 1/2 hours she works and $10.30 for every hour after that. If Elaine worked 20 1/4 hours, how

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<h3>I think the answer is letter C.</h3>

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The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

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$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

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3 years ago

7n2 + 8n − 12

12345 [234]

<span>7n^2 + 8n − 12
= (7n - 6)(n + 2)

cause
</span>(7n - 6)(n + 2)
= 7n^2 - 6n + 14n - 12
= 7n^2 + 8n - 12

answer
<span>D) (7n − 6)(n + 2)</span>

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4 years ago

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Nostrana [21]

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Step-by-step explanation:

im really sorry if its wrong, just pls dont report me

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Can anyone help me answer this​

Can anyone help me answer this