Find the distance from (-10,2,-8) to the xy-planes.

a. 8
b. 16
c. 10
d. 2
e. 4


a. 8

Mathematics

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Solve the problem. Round your answer, if appropriate.Water is being drained from a container which has the shape of an inverted right circular cone. The container has a radius of 4.00 inches at the top and a height of 5.00 inches. At the instant when the water in the container is 3.00 inches deep, the surface level is falling at a rate of 0.7 in./sec. Find the rate at which water is being drained from the container.

A. 12.1 in.3/s B. 12.7 in.3/s C. 12.3 in.3s D. 14.8 in.3/s

Mathematics

(15/12xy2)/(60a2/24x3y) =

a. 4a2x3y3/8 b. 4a-2y/8 c. a-2x2y-1/2 d. a2x-3y/2 e. a2x3y/2

Mathematics

Solve the equations by factoring.81k2 - 4 = 0

A. , -  
B. , -  
C. , 0
D. 2, 0

Mathematics

Simplify the expression. ÷  - 

A.  
B.
C.  
D.

Mathematics