Maximize  with  and

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Fill in the blank(s) with the appropriate word(s).

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256

Mathematics

Find the exact value of the expression.cos  cos  + sin  sin 

A. 1
B.
C.
D.

Write the English phrase as an algebraic expression. Let the variable x represent the number.Twice a number, increased by 79

A. 2x - 79 B. 2x + 79 C. 2(x + 79) D. x + 79

Solve.John drops a ball from the top of a 256 foot building. The height, h, of the ball in feet t seconds after being dropped is given by h = -16t2 + 256. When will the ball hit the ground? (Hint: The height of the ball when it hits the ground will be 0.)

A. The ball will hit the ground when t = 4 sec. B. The ball will hit the ground when t = 17 sec. C. The ball will hit the ground when t = 16 sec. D. The ball will hit the ground when t = 64 sec.

Simplify.(5a5b6c0)2

A. 0 B. 5a10b12 C. 25a10b12c2 D. 25a10b12