Solve the problem.Find the mass of a sphere of radius 4 if    k a constant.

A. 16k?
B. 64k?
C. 512k?
D. 256k?


Answer: D

Mathematics

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Let M denote the midpoint of the line segment joining (2, 3) and (7, 6).  Find the midpoint between M and (-6, -4). ?

A. (2, 0.25) B. (-0.75, 0.25) C. (-2, -0.5) D. (4.5, 4.5) E. (0.5, 1)

Mathematics

Round the decimal to the given place value.3.817, nearest tenth

A. 3.817 B. 3.7 C. 3.8 D. 3.9

Mathematics

A projectile is fired from a height of 350 ft with an initial speed of 200 ft/sec and an angle of elevation of 30°.

a. What are the scalar tangential and normal components of acceleration of the projectile? b. What are the scalar tangential and normal components of acceleration of the projectile when the projectile is at its maximum height?

Mathematics

Solve.The cost of manufacturing a molded part is related to the quantity produced during a production run. When 100 parts are produced, the cost is $300. When 600 parts are produced, the cost is $4800. What is the average cost per part?

A. $7.50 per part B. $9.00 per part C. $10.00 per part D. $0.11 per part

Mathematics