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3 years ago

Please help with this

Mathematics

1 answer:

Nitella [24]3 years ago

3 0

it would equal 21 hope this helps

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3 years ago

If f(x)=-4x+3 and g(x)=3x^2+2x-4, find (f+g)(x)

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Step-by-step explanation:

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3 years ago

Today, the waves are crashing onto the beach every 4.8 seconds. The times from when a person arrives at the shoreline until a cr

kaheart [24]

Answer:

61% of the time a person will wait at least 1.872 seconds before the wave crashes in.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

Uniform distribution from 0 to 4.8 seconds.

This means that $a = 0, b = 4.8$

61% of the time a person will wait at least how long before the wave crashes in?

This is the 100 - 61 = 39% percentile, which is x for which $P(X \leq x) = 0.39$ . So

$P(X \leq x) = \frac{x - a}{b-a}$

$0.39 = \frac{x - 0}{4.8 - 0}$

$x = 4.8*0.39$

$x = 1.872$

61% of the time a person will wait at least 1.872 seconds before the wave crashes in.

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3 years ago

WILL MARK AS BRAINLIEST!!

ki77a [65]

Answer: y=6

Step-by-step explanation:

Data: y=3 and x=12

y=? and x=18

12/3=4 and 18/3=6

y=6

I hope this helps

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3 years ago