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Maurinko [17]
3 years ago
6

Please help. Will grant brainliest!!

Mathematics
2 answers:
STALIN [3.7K]3 years ago
8 0

Answer:

the first one

Step-by-step explanation:

Add r to the other side

multiply each side by e^2

divide by m-y+r

then sqaure root it

makkiz [27]3 years ago
5 0

Answer: 1st option

Step-by-step explanation:

I've attached the solution

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You are selling raffle tickets to raise money. Each ticket costs $5. Which equation solves for the number of tickets you must se
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3 years ago
If a simple harmonic motion is described by x = 3 cos(πt), starting from t = 0 s, what is the first occurrence of a value of t f
poizon [28]

Answer:

The first occurence of t for which x = 0 is t = 0.5.

Step-by-step explanation:

The harmonic motion is described by the following equation.

x(t) = 3\cos{\pi t}

What is the first occurrence of a value of t for which x = 0?

This is t when x(t) = 0. So

x(t) = 3\cos{\pi t}

3\cos{\pi t} = 0

\cos{\pi t} = \frac{0}{3}

\cos{\pi t} = 0

The inverse of the cosine is the arcosine. So we apply the arcosine function to both sides of the equality.

\arccos{\cos{\pi t}} = \arccos{0}

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t = \frac{1}{2}

t = 0.5

The first occurence of t for which x = 0 is t = 0.5.

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3 years ago
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