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bulgar [2K]
3 years ago
14

12) Amusement Parks A thrill ride at an amusement park carries riders 160 feet straight up and then releases them for a free fal

l. The time t in seconds that it takes an object in free fall to reach the ground is t =
\sqrt{ \frac{d}{16} }
where d is the distance in feet that it falls. How long does it take the riders to reach the ground? Give your answer as a radical expression in simplest form. Then estimate the answer to the nearest tenth of a second. ​
Mathematics
1 answer:
Sliva [168]3 years ago
7 0

Answer:

sqrt(10)

Step-by-step explanation:

sqrt(160)/16

sqrt(16)sqrt(10)/sqrt(16)

4sqrt(10)/4

sqrt(10)

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Afina-wow [57]

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Is it The numbers on the ruler?

Step-by-step explanation:

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2 years ago
Find the distance between (-7,-2) and (11,3)
jarptica [38.1K]

Answer:

The answer is

<h2>\sqrt{349}  \:  \: units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }   \\</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-7,-2) and (11,3)

The distance between the points is

<h3>d =  \sqrt{ ({ - 7 - 11})^{2} +  ({ - 2 - 3})^{2}  }  \\  =  \sqrt{ ({ - 18})^{2} +  ({ - 5})^{2}  }  \\  =  \sqrt{324 + 25}  \\</h3>

We have the final answer as

<h3>\sqrt{349}  \:  \: units</h3>

Hope this helps you

5 0
3 years ago
Simplify the expression (128x^5/8x)^1/2
solong [7]

Answer: 4x'6

Step-by-step explanation:

Simplify x5 /8. Than, Equation at the end of step  1  :   x5   ——) • x)1) ÷ 4   8  

Step  2  :  2.1     16 = 24  (16)1 = (24)1 = 24  2.2    x6 raised to the 1 st power = x( 6 * 1 ) = x6

Step  3  :     24x6  Simplify   ————    4  

Dividing exponents :   3.1    24   divided by   22   = 2(4 - 2) = 22

which brings us to our final answer above

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schepotkina [342]

Answer:

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6 0
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anzhelika [568]
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If the ratio is factored to a number, let's say 3, then there will be 12 pens for every 3 pencils
4 0
3 years ago
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