3 years ago

What is 5mm as a radius plz help

Mathematics

1 answer:

exis [7]3 years ago

6 0

Well, assuming 5mm is the diameter, then 2.5 mm is the radius.

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4/2 as a mixed number

balu736 [363]

Four halves equals 2.

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3 years ago

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A sample of 20 account balances of a credit company showed an average balance of $1,170 and a standard deviation of $125. You wa

Lady_Fox [76]

Answer:

The P-value for this test is P=0.2415.

Step-by-step explanation:

We have to perform an hypothesis testing on the mean of alla account balances.

The claim is that the mean of all account balances is significantly greater than $1,150.

Then, the null and alternative hypothesis are:

$H_0: \mu=1150\\\\H_a: \mu>1150$

The sample size is n=20, with a sample mean is 110 and standard deviation is 125.

We can calculate the t-statistic as:

$t=\dfrac{\bar x-\mu}{s/\sqrt{n}}=\dfrac{1170-1150}{125/\sqrt{20}}=\dfrac{20}{27.95}=0.7156$

The degrees of freedom fot this test are:

$df=n-1=20-1=19$

For this one-tailed test and 19 degrees of freedom, the P-value is:

$P-value=P(t>0.7156)=0.2415$

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3 years ago

Which of the following are factors of both 15 and 45?

sveticcg [70]

Answer:

5,3

Step-by-step explanation:

5*3=15

15*3=45

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3 years ago

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Use a translation rule to describe the translation of ABC that is 6 units to the right and 10 units down.

vesna_86 [32]

Answer:

(x, y ) → (x + 6, y - 10 )

Step-by-step explanation:

6 units right is + 6 in the x- direction

10 units down is - 10 in the y- direction

the translation rule is

(x, y ) → (x + 6, y - 10 )

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2 years ago

Bruh I need help ion know this stuff

ArbitrLikvidat [17]

I believe the answer is b and e

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