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olya-2409 [2.1K]
3 years ago
7

I need to know the answer rn

Mathematics
2 answers:
alisha [4.7K]3 years ago
8 0
Option C is your answer.

Add (- 3) + 2 to get - 1 for the exponents. 2^ (-1) is the same as 1 / 2^1 which is 1/2. 
Lapatulllka [165]3 years ago
7 0
A. 1/32


Explanation:


There can't be negative exponents in the numerator, so we bring down the top 2 and take away the negative on the 3.

The equation is now:
\frac{1}{2^{2} 2^{3} }

To multiply exponents with the same base, leave the base alone and add the exponents.

\frac{1}{ 2^{5}}

Solve 2^5.

\frac{1}{32}
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A model rocket is launched with an initial velocity of 200 ft per second. The height h, in feet, of the rocket t seconds after t
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Answer:

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Step-by-step explanation:

We know that the height of the rocket is given by the function:

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350=-16t^2+200t

The last is a quadratic equation, which can be put in the form at^2+bt+c=0 and solved applying the formula:

t=\frac{-b+-\sqrt{b^2-4ac} }{2a}

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According to the equation, that are the times for which the height will be 350 ft; that is because the rocket is going to ascend and then to fail again to the ground.

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