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4 years ago

What's 2×8=??????????????????????????

Mathematics

2 answers:

algol134 years ago

7 0

2x8=16, 2x9=18,2x10,20...

would you like any additional help?

Have a nice day❤︎

Fynjy0 [20]4 years ago

5 0

The answer is 16

8+8 = 16 which is 2*8

2*9 = 18

9+9 = 18

Have a nice day❤︎

---

Kearsi

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the surface area of a sphere is 1,017.36 square inches.what is the volume of the sphere? use 3.14 for pi

emmasim [6.3K]

Answer:

Area = 254.34 inches ³

Step-by-step explanation:

The formula to find the surface area of a sphere is:

$SA = 4\pi r^{2}$

To find the volume of the sphere, we first need to figure out the radius ( $r$ ) of the sphere. We can accomplish this by reversing the formula that was used to find the surface area. $(1017.36 in^{2})$

$SA = 4\pi r^{2}$

$1017.36 = 4\pi r^{2}$

Divide both sides by pi ( $3.14$ ).

$1017.36 = 4\pi r^{2}$

$324 = 4 r^{2}$

Divide both sides by 4.

$324 = 4 r^{2}$

$81 = r^{2}\\$

Find the square root of both sides.

$81 = r^{2}\\$

$\sqrt{81} = r$

radius = 9

Insert the value of the radius into the formula for finding the volume of a sphere. $(A=\pi r^{2})$

$(A=\pi r^{2})$

$A=\pi (9)^{2}$

$A=\pi (81)$

$A = 254.34$

Area = 254.34 inches ³

~Hope this helps!~

4 0

3 years ago

What is 4 4/5 + 1 1/3?

Dafna1 [17]

Answer:

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Step-by-step explanation:

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