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lisov135 [29]
3 years ago
8

What is i30? A. 1 B. -i C. -1 D. i

Mathematics
1 answer:
Doss [256]3 years ago
5 0
B

Jksshsianhshsjssjsj
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The number of cubic units in the volume of a sphere is equal to the number of square units in the surface area of the sphere. Wh
viktelen [127]

Answer:

Radius of sphere is 3 units.

Step-by-step explanation:

Volume of sphere is given by 4/3 \pi r^3

surface area of sphere is given by 4 \pi r^2

where r is the radius of the sphere.

Given that

The number of cubic units in the volume of a sphere is equal to the number of square units in the surface area of the sphere.

we equate formula of Volume of sphere  and surface area of sphere

assuming r as the radius.

thus,

4/3 \pi r^3 = 4 \pi r^2\\\\4/3 \pi r^3/ 4 \pi r^2 = 1\\=>r/3 = 1\\=> r = 3

Thus, radius of sphere is 3 units.

5 0
3 years ago
Find the work done when a crane lifts a ​-pound boulder through a vertical distance of feet. Round to the nearest​ foot-pound.
goldenfox [79]

Answer:

72000ft-1b

hope it helps

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3 years ago
Solve each system using substitutions<br> Y+4=x<br> -2+ Y=8
klemol [59]
-2 + Y = 8
Y = 10
Plug in Y to the first equation, 10 + 4 = X
X = 14
3 0
3 years ago
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Evaluate 5^-4<br> A.1/625<br> B.-1/625<br> C.625<br> D.-625
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Answer:

A

Step-by-step explanation:

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Which box plot represents a set of data that has the greatest mean absolute deviation?
zmey [24]

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i need a picture of the graph but im pretty sure its graph B

Step-by-step explanation:

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