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3 years ago

What is 8 4 and 5 rounded to the nearest tenth?

Mathematics

2 answers:

Ne4ueva [31]3 years ago

7 0

Answer:

8 rounded to the nearest tenth is 10.

4 rounded to the nearest tenth is 0.

5 rounded to the nearest tenth is 10.

Flura [38]3 years ago

6 0

8 is 10 4 is 0 and 5 is 10

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A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation A pizza delivery company buys

zubka84 [21]

Answer:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

Step-by-step explanation:

Assuming this statement to complete the problem "with a standard deviation 5 mpg"

We have the following info given:

$\mu = 34$ represent the mean

$\sigma= 5$ represent the deviation

We have a sample size of n = 54 and we want to find this probability:

$P(33.3 < \bar X< 34.3)$

And for this case since the sample size is large enough >30 we can apply the central limit theorem and then we can use this distribution:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And we can use the z score formula given by:

$z=\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

7 0

4 years ago

The area of a tabletop is 48 square feet. the length is 3 times the width.if the dimensions are whole numbers, what is the width

posledela

(4 feet wide), 12 feet in length. 4*3=12 4*12=48

7 0

3 years ago

A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teacher

Yuri [45]

You would do 300• 31/100 to get 90. I’m pretty sure that’s right

4 0

3 years ago

The perimeter of a rectangle is 72 in. The base is 3 times the height. Find the area of the rectangle

Dovator [93]

Answer:

243 in²

Step-by-step explanation:

Step 1. Calculate the<em> base and height </em>of the rectangle

We have two conditions:

(1) 2b+ 2h = 72 in

(2) b = 3h Substitute in (1)

2(3h) + 2h = 72 Remove parentheses

6h + 2h = 72 Combine like terms

8h = 72 Divide by 6

h = 9 in Substitute in(2)

b = 3 × 9

b = 27 in

Step 2. Calculate the area of the rectangle

A = bh

A = 27 × 9

A = 243 in²

The area of the rectangle is 243 in².

7 0

4 years ago

Hey I'm not sure what -x=9-3y is

mars1129 [50]

Answer:

x=0 y=3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers