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Lynna [10]
3 years ago
13

The simple interest on a sum of money is 25% of the rate percent per annum find the rate​

Mathematics
1 answer:
kifflom [539]3 years ago
7 0

si =25%*p  

rate =term=t  

from si= ptr/100

term = rate = 5

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Which equation has no solution? *
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Body armor provides critical protection for law enforcement personnel, but it does affect balance and mobility. The article "Imp
yKpoI14uk [10]

Answer:

No, there is not enough evidence to support the claim that true average task time with armor is less than 2 seconds.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that true average task time with armor is less than 2 seconds.

Then, the null and alternative hypothesis are:

H_0: \mu=2\\\\H_a:\mu< 2

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As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=0.2.

The estimated standard error of the mean is computed using the formula:

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Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{1.95-2}{0.028}=\dfrac{-0.05}{0.028}=-1.803

The degrees of freedom for this sample size are:

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This test is a left-tailed test, with 51 degrees of freedom and t=-1.803, so the P-value for this test is calculated as (using a t-table):

P-value=P(t

As the P-value (0.039) is bigger than the significance level (0.01), the effect is not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that true average task time with armor is less than 2 seconds.

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3 years ago
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[Hello,BrainlyUser]

Answer:

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.30

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The price of the shirt before the markup is $21.84.

[CloudBreeze]

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Radda [10]

Answer:

1. D

2. F

3. B

4. A

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Step-by-step explanation:

Solve for X

8 0
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