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4 years ago

WIll reward with high brainly points if these questions are aswered correctly

Mathematics

1 answer:

Phoenix [80]4 years ago

8 0

A = Ao(x)^t

Ao = 500

A = 500(x)^t

400 = 500 (x)^1

x = 4/5

A = 500(4/5)^t << The exp eqn

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Need help with math! Margin of error

bekas [8.4K]

Answer:

See below

Step-by-step explanation:

Problem 4

$H_0:p=0.40\\H_a:p>0.40$

Problem 5

$H_0:p=0.42\\H_a:p$

Make sure to read the problems and translate it into math

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3 years ago

What do I do im gay

Svetradugi [14.3K]

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Step-by-step explanation:

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3 years ago

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If 1 centimeter on the scale drawing represents 2 feet, what will be the diameter of Clarise's fish pond?

alexandr402 [8]

Okie, so, each cm that measures across the pond is equivalent to 2ft
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3 years ago

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The volume of a right circular cone varies jointly as the altitude and the square of the radius of the base. If the volume of th

Tresset [83]

Answer:13.5 inches

Step-by-step explanation:

Here, the volume of a right circular cone varies jointly as the altitude and the square of the radius of the base

So our equation for volume becomes

V = c*h*r^2

where 'h' is altitude and 'r' is radius of base and 'c' is constant

Putting the value of V,h,r,

we get,

154 = c*12*3.5*3.5

c = 22/21

Now we have volume = 77 cu and radius of the base =7/3, so putting the values we get,

77 = 22/21*h*7/3*7/3

or, h= 13.5

Hope it helps!!!

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3 years ago

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A local pizza store knows the mean amount of time it takes them to deliver an order is 45 minutes after the order is placed. The

Bad White [126]

Answer:

We need to conduct a hypothesis in order to check if the true mean is different from 45(alternative hypothesis), and then the system of hypothesis would be:

Null hypothesis: $\mu =45$

Alternative hypothesis: $\mu \neq 45$

Since we don't know the sample size we can't calculate the statistic and the only thing that we can do is create the sytem of hypothesis.

Step-by-step explanation:

Data given and notation

$\bar X=48$ represent the sample mean

$s=10$ represent the sample standard deviation

$n$ sample size

$\mu_o =45$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean is different from 45(alternative hypothesis), and then the system of hypothesis would be:

Null hypothesis: $\mu =45$

Alternative hypothesis: $\mu \neq 45$

Since we don't know the sample size we can't calculate the statistic and the only thing that we can do is create the sytem of hypothesis.

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4 years ago