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lubasha [3.4K]
3 years ago
5

I'll give brainliest if you show your work. Plz answer quickly.

Mathematics
2 answers:
makvit [3.9K]3 years ago
8 0
I'm pretty sure the answer is 2.9 because It's closer to 3 than 2

Vanyuwa [196]3 years ago
6 0
2.9 sure. It’s .9 away while the rest of the numbers are.5, .4, and .1 away which is less.
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The average human heart beats 75 times every minute. The average horse has a heartbeat of 40 times every minute. How many times
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Answer:

4500

Step-by-step explanation:

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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
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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}

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\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{\pi}{2 \pi}

t = \frac{1}{2}

t = 0.5

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

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A two story house is about 12 blank tall
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