3 years ago

Please! can somebody help me?

Mathematics

1 answer:

frez [133]3 years ago

4 0

Step-by-step explanation:

The depth of the water is increasing by 2 feet each minute.

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horrorfan [7]

do you sell genius brain

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2 years ago

You are planning a party. You want to rent a snow cone machine, and the snow cone company charges a $25 set-up fee plus $15 per

dezoksy [38]

The answer would be 15h+25 because h isthe variable representing hours and they charge $15 for every hour. And also, the plus 25 is for the setup fee.

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3 years ago

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The Carter Motor Company claims that its new sedan, the Libra, will average better than 31 miles per gallon in the city. Assumin

Nutka1998 [239]

Answer:

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis $H_a : \mu > 31$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 31 \ miles / gallon$

Generally

The null hypothesis is that the company's new sedan, the Libra, will have an average of $\mu = 31 \ miles / gallon$

This mathematically represented as

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis is that the company's new sedan, the Libra, will have an average better than $\mu = 31 \ miles / gallon$

This mathematically represented as

The alternative hypothesis $H_a : \mu > 31$

7 0

3 years ago

What is the rate of change for f(x) = 4 sin x − 2 on the interval from x = 0 to x = pi over 2? pi over 4 4 over pi pi over 8 8 o

MaRussiya [10]

Hello,
f(π/2)=4*sin(π/2)-2=4*1-2=2
f(0)=4*sin(0)-2=0-2=-2

rate=(2+2)/(π/2-0)=8/π
Answer D

3 0

3 years ago

Please help me with this I will mark you as brainliest!

iragen [17]

Answer:

.74

Step-by-step explanation:

First, you know that 30% are boys and 70% are girls. Then, take 60% of 30% and 70% of 80%. From there you get .74 as the probability of a randomly chosen child having taken a car to school.

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3 years ago

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