Wa=0.5Wb, Ha=20, Hb is unkown
the area of rectangle a is : Wa*20
the area of rectangle b is : Wb*Hb
Rectangle a has 7 times the area of rectangle b: Wa*20=7*Wb*Hb
Replace Wa with 0.5Wb: 0.5Wb*20=7Wb*Hb => Hb=10/7

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The miles-per-gallon obtained by the 1995 model q cars is normally distributed with a mean of 22 miles-per-gallon and a standard

mina [271]

That probability is about 0.4207.

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3 years ago

Read 2 more answers

the coefficient of correlation between x and y is 0.28 there covariance is 7.6 if the variance of x is 9 then standard division

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Answer: 9.05

the answer is in here: https://brainly.in/question/13877695

Step-by-step explanation:

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2 years ago

63 +72 - 12 + 1522 + 3 - 5​

63 +72 - 12 + 1522 + 3 - 5