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lawyer [7]
3 years ago
8

Find the area **Number Only** Thanks

Mathematics
1 answer:
Contact [7]3 years ago
7 0

Answer:

a=12

Step-by-step explanation:

A=b*h/2

a=4.8mi*5mi/2

a=24/2

a=12

hope this helps

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What is 4/7 as a decimal rounded to 3 decimal places?<br>​
Arada [10]

Answer:

0.571

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2 years ago
What is -15 in integers
Paladinen [302]

The number -15 represents in a negative integer

<h3>How to determine what -15 represents in integers?</h3>

The number is given as:

Number = -15

Integers are numbers that do not have decimal points

The categories of integers are:

  • Positive integers (i.e. numbers greater than 0)
  • Zero
  • Negative integers (i.e. numbers less than 0)

The given number -15 is less than 0

Hence, the number -15 represents in a negative integer

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brainly.com/question/17695139

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1 year ago
What is the square root pi 4
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\sqrt{ \pi 4} = 3.544907702

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3 years ago
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Jason had one hundred fifty-nine dollars to spend six books.After buying them he had fifteen dollars.How much did each book cost
Alla [95]

Answer:

11.5

Step-by-step explanation:

Divide: 159:6-15

Calculate: 26.5-15

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6 0
3 years ago
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In a study of parents' perceptions of their children's size, researchers asked parents to estimate their youngest child's height
tatyana61 [14]

Answer:

Test statistic t=6.505

P-value=0

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that parents tend to underestimate their youngest child's size.

Then, the null and alternative hypothesis are:

H_0: \mu=0\\\\H_a:\mu> 0

The significance level is assumed to be 0.05.

The sample has a size n=39.

The sample mean is M=7.5.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=7.2.

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

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{7.2}{\sqrt{39}}=1.153

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{7.5-0}{1.153}=\dfrac{7.5}{1.153}=6.505

The degrees of freedom for this sample size are:

df=n-1=39-1=38

This test is a right-tailed test, with 38 degrees of freedom and t=6.505, so the P-value for this test is calculated as (using a t-table):

P-value=P(t>6.505)=0

As the P-value (0) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is  enough evidence to support the claim that parents tend to underestimate their youngest child's size.

5 0
3 years ago
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