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2 years ago

What is the mean of the data set? {24, 12, 31, 15, 38} O 26 O 25 O24 O22

Mathematics

1 answer:

jarptica [38.1K]2 years ago

3 0

Answer:

Step-by-Step-Equation

12 + 15 + 24 + 31 + 38 = 120

120 / 5 = 24

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The Earth is 1.49 × 108 kilometers from the Sun, multiply this expression by the given power of 10.

soldier1979 [14.2K]

1.49 × 10^8

*just move the decimal point 8 places to the right.

149,000,000

hope this helps :)

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3 years ago

What is the surface area of a sphere with a diameter of 12 centimeters ?

nasty-shy [4]

Answer:

$A=452.39\ cm^2$

Step-by-step explanation:

The formula to calculate the surface area of a sphere is the following:

$A=4\pi r^2$

Where A is the area of the sphere and r is the radius of the sphere.

In this case we know that the diameter d of the sphere is:

$d = 12\ cm$

The diameter is:

$d = 2r$ .

Thus

$r = \frac{d}{2}\\\\r = \frac{12}{2}\\\\r=6\ cm$

Then the surface area of the sphere is:

$A=4\pi (6)^2\\\\A = 144\pi\ cm^2\\\\A=452.39\ cm^2$

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3 years ago

Read 2 more answers

Find the distance between (-3,2) and (5, -6) using the distant formula.

spin [16.1K]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-3}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-6})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[5-(-3)]^2+[-6-2]^2}\implies d=\sqrt{(5+3)^2+(-8)^2} \\\\\\ d=\sqrt{8^2+8^2}\implies d=\sqrt{2(8^2)}\implies d=8\sqrt{2}$

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3 years ago

What is the fraction 2 over 3 written in decimal form!!!!!!!!!

vodomira [7]

This is a number you will have memorized in grade school. If not, you can always perform long division of 2 by 3 to find it---or ask your calculator.

2/3 = 0.6666_6 . . . . . . repeating 6s indefinitely

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Most folks get tired of writing 6s after a couple million of them, so they round it off to 0.67 or 0.667. These rounded values are NOT exactly 2/3.

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3 years ago

Pls simplify.<br> 9x2 + 39x + 42

Vlad1618 [11]

Answer: 3 • (x + 2) • (3x + 7)

Step-by-step explanation:

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3 years ago