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3 years ago

40 points.

Mathematics

1 answer:

viva [34]3 years ago

3 0

Answer:

B. a(t) = -3π²cos(πt)

Step-by-step explanation:

Acceleration is the second derivative of the position. Here, the second derivative of the cosine function is ...

d²(cos(πt))/dt²= -π²cos(πt)

Of course, the second derivative of the constant is zero. When we consider the multiplier of 3, we have ...

a(t) = x''(t) = -3π²cos(πt) . . . . . . . matches choice B

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jeka94

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4 years ago

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Kipish [7]

Answer:

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Step-by-step explanation:

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3 years ago

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timurjin [86]

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4 years ago

Read 2 more answers

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iren2701 [21]

Answer:

Below

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4 years ago

Having trouble with this one can someone teach me how to find the slope in this question. Try to help me learn it aswell. Its in

ASHA 777 [7]

Hi there! The answer is -2.

We can find the slope of a formula by using the following formula:

$slope = \frac{change \: of \: y}{change \: of \: x} =\frac{y2 - y1}{x2 - x1}$
x2 and y2 don't mean squared, but the x and y coordinate of our second point.

First we need to find two points on the line. Ijn this particular case we have (-3, 3) and (1, -5). Now we can fill in the formula.

$slope = \frac{ - 5 - 3}{1 - - 3} = \frac{ - 8}{4} = - 2$

Therefore, the third answer is correct.
~ Hope this helps you!

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4 years ago