3 years ago

What is 75% of 8 hours and 15 minutes

Mathematics

1 answer:

jarptica [38.1K]3 years ago

8 0

Approximately 6 hours and 18 minutes

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kondaur [170]

U must find the median, the range, and the mode. And that is your answer

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2 years ago

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Assume that the random variable X is normally distributed, with mean ? = 50 and standard deviation ? = 7. Compute the following

sineoko [7]

Answer:

Step-by-step explanation:

Given that the random variable X is normally distributed, with

mean = 50 and standard deviation = 7.

Then we have z= $\frac{x-50}{7} is N(0,1)$

Using this and normal table we find that

a) $P(56$

b) When z=0.02

we get

$x=50+0.02(7)=50.14$

c) 90th percentile z value =1.645

90th percentile of X $=50+7(1.645)\\= 50+11.515\\=61.515$

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2 years ago

If ∠1≅∠2, then ___...

Novay_Z [31]

Answer: All of thé above

Step-by-step explanation:

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2 years ago

A ball is hurled in the air such that its horizontal (x) and vertical (y) shifts are given by the functions x(t) = 20t and y(t)

Viefleur [7K]

x(t) = 20t

y(t) = 40t - 5t^2

Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y

x(5) = 20(5) becomes x(5) = 100

y(5) = 40(5) - 5(5)^2 becomes y(5) = 200 - 125 and then y(5) = 75

The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75

Answer: 0.75

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3 years ago

Can someone help me? It’s Geometry !

Alenkinab [10]

Answer:

answer is 175

Step-by-step explanation:

i solved it by similarity in triangle small triangle and big triangle are similar to each other.

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3 years ago