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Nata [24]
3 years ago
13

A. X=2 B. Y=2 C. Y=-3 D. X=3

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0

Answer:

A

Step-by-step explanation:

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3 0
3 years ago
Am i correct? calculus
Advocard [28]
Check the picture below.

now, the "x" is a constant, the rocket is going up, so "y" is changing and so is the angle, but "x" is always just 15 feet from the observer.  That matters because the derivative of a constant is zero.

now, those are the values when the rocket is 30 feet up above.

\bf tan(\theta )=\cfrac{y}{x}\implies tan(\theta )=\cfrac{y}{15}\implies tan(\theta )=\cfrac{1}{15}\cdot y
\\\\\\
\stackrel{chain~rule}{sec^2(\theta )\cfrac{d\theta }{dt}}=\cfrac{1}{15}\cdot \cfrac{dy}{dt}\implies \cfrac{1}{cos^2(\theta )}\cdot\cfrac{d\theta }{dt}=\cfrac{1}{15}\cdot \cfrac{dy}{dt}
\\\\\\
\boxed{\cfrac{d\theta }{dt}=\cfrac{cos^2(\theta )\frac{dy}{dt}}{15}}\\\\
-------------------------------\\\\


\bf cos(\theta )=\cfrac{adjacent}{hypotenuse}\implies cos(\theta )=\cfrac{15}{15\sqrt{5}}\implies cos(\theta )=\cfrac{1}{\sqrt{5}}\\\\
-------------------------------\\\\
\cfrac{d\theta }{dt}=\cfrac{\left( \frac{1}{\sqrt{5}} \right)^2\cdot 11}{15}\implies \cfrac{d\theta }{dt}=\cfrac{\frac{1}{5}\cdot 11}{15}\implies \cfrac{d\theta }{dt}=\cfrac{\frac{11}{5}}{15}\implies \cfrac{d\theta }{dt}=\cfrac{11}{5}\cdot \cfrac{1}{15}
\\\\\\
\cfrac{d\theta }{dt}=\cfrac{11}{75}

8 0
3 years ago
(5, 4.07, 5.26, 4.3, 5.02) <br><br> 5.02 &lt; ?​
aleksandr82 [10.1K]

Answer:

5.26

Step-by-step explanation:

Of the numbers given, opnly 5.26 is larger than 5.02.

8 0
3 years ago
Is -5/0 undefined. And why is it or why is it not.
xeze [42]
Yes -5/0 is undefined because having 0 of something means you cannot split that 0 into any number so the answer is undefined.
6 0
3 years ago
the code contains four digits to the right of the decimal, the digit in the hundreds place, the digit in the tenths place is an
grigory [225]

to hi hello how to help you out front of your house at the

4 0
3 years ago
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