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2 years ago

Please help with this AP Calculus question!

Mathematics

1 answer:

mario62 [17]2 years ago

5 0

9514 1404 393

Answer:

B. -1

Step-by-step explanation:

A graph can show you that the expression approaches -1 as x approaches 2π.

The limit is -1.

The expression evaluated at x=2π is 0/0, an indeterminate form. This suggests that L'Hopital's rule is applicable. Applying that, we have ...

lim = (f'(2π) -f'(x))/(x-2π)' = -cos(x)/1

Evaluated at x=2π, this is ...

lim = -1

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On a vacation in Puerto Rico rose jumped off a cliff into a river in El Yunque go forest reserve her height as a function of tim

gayaneshka [121]

Answer: t = 6 s

Step-by-step explanation:

When Rose hit the water, the height of the jump is 0, so: h(t) = 0.

Resolving it, we have:

-16t² + 16t + 480 = 0

To simplify the second degree equation, divided it by 16:

-t² + t + 30 = 0

Now, solve the equation using Bhaskara:

Δ = 1² - 4. (-1) . 30

Δ = 1 + 120

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t = $\frac{-1+\sqrt{121} }{-2}$

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3 years ago

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Answer:

D. none

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3 years ago

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Answer:

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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