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Alina [70]
3 years ago
9

If an object is dropped from 100 feet in the air and air resistance is ignored, the object will fall at a rate that can be model

ed by the function h(t) = -16t? + 100. After how many seconds is the object 20 feet from theground?
Mathematics
1 answer:
ELEN [110]3 years ago
6 0

every foot is a second hope that helps

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A. 8pi<br><br> B. pi<br><br> C. 2pi<br><br> D. 4pi
mestny [16]

Answer: Option C

AC = 2\pi

Step-by-step explanation:

The arc length is calculated as

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Then

AC = \theta * R

We know that

BC = 24\ ft

If BC is the diameter of the circumference then the radius R is:

R = \frac{BC}{2}

R = \frac{24}{2}

R = 12\ ft

Now we convert the anglo from degrees to radians\theta= 30\° * \frac{\pi}{180\°}\\\\\theta=\frac{1}{6}\pi

Finally

AC = \frac{1}{6}\pi * 12

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7 0
3 years ago
Read 2 more answers
Simplify 5x + 50 / x + 5 • 1/x + 10
In-s [12.5K]

5x + 50 / x + 5 • 1/x + 10

<span><span><span><span>  5x</span>+<span><span>‌<span>50x</span></span>‌</span></span>+<span><span>‌<span><span><span>(5)</span><span>(1)</span></span>x</span></span>‌</span></span>+10</span><span>
</span><span>
</span><span>  =<span>‌<span><span><span><span>5<span>x^2</span></span>+<span>10x</span></span>+55  / </span>x</span></span></span>
8 0
3 years ago
A six-faced die is rolled .
STatiana [176]

Answer:

[A] 2/6

[B] 1/2

Step-by-step explanation:

Given:

A six-faced die is rolled .

To Find:

Find the probability of it landing on a value more than 4

Find the probability of it landing on an even number

Part A:

Knowing that a six-faced die has six number on it (1,2,3,4,5,6)

Thus, the probability of it landing on an value more than 4 is 2/6.

Because 5 and 6 is more than 4

Part B:

1,3,5 = Odd

2,4,6 = Even

Thus, the probability of it landing on an even number is 3/6 Simplify 1/2 . Which also is 50%.

<em>~Lenvy~</em>

8 0
2 years ago
What is the expression below?<br> 26 + 67 + 3x2³
Alenkasestr [34]

Answer:

24x+93

That's the answer to the equation that was what you were asking for right?

5 0
3 years ago
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anzhelika [568]
1. Unless you have the total students, it would be D, because we don't know how many total students there are, so we don't know how many students 100% would be.

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8 0
3 years ago
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