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alukav5142 [94]

3 years ago

9

A helium ballon is tied to a sign 6 feet off the ground. Once untied, it will rise at a rate of 4 feet per second. Create an equ

ation that represents the height of the balloon as it floats up

1 answer:

Ahat [919]3 years ago

8 0

Answer:

x(the height)=6+4s(4 feet for every second)

Step-by-step explanation:

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What is 70.8 divided by 9.44?

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7.5 is the answer to it

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Evaluate each expression for s=4 and t=8<br> 1) (25)^2t<br> 2) 2st^2-5^2<br> 3) 2s^2-t^3/16

stepladder [879]

Answer:

<u>1.</u> 2.328× $10^{22}$

<u>2.</u> 487

<u>3.</u> 30.52 OR 0 (see explanation↓)

Step-by-step explanation:

<u>1.</u> $(25)^{2t}$

(sub for t=8)

= $25^{2*8}$

= $25^{16}$

=2.328× $10^{22}$

<u>2.</u> $2st^{2} -5^{2}$

(sub for s=4 and t=8)

=2×4× $8^{2}$ - $5^{2}$

=512-25

=487

<u>3.</u> $2s^{2} -t^{3/16}$ (the equation is not clear so I will do $2s^{2} -\frac{t^{3} }{16}$ as well)

<u>FOR</u> $2s^{2} -t^{3/16}$

(sub s=4 and t=8)

=2× $4^{2}$ - $8^{3/16}$

=32-1.476826146

=30.52 (to the nearest 2 decimal place)

<u>FOR</u> $2s^{2} -\frac{t^{3} }{16}$

(sub s=4 and t=8)

=2× $4^{2}$ - $\frac{8^{3} }{16}$

=32-32

=0

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Bryant collects a set of 20 values that represent the lengths of worms he found in the garden. The variance of the set of values

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Answer:

The standard deviation from the mean is the square root of the variance.

Therefore, SD = sqrt(VAR) = sqrt(36) = 6

Hope this helps!

:)

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