Solve.The function h(t) = -16t2 + 160t - 384 gives the height h, in feet, of a flare fired from the bottom of a gorge 
deep with an initial velocity of 
The flare fired is visible only when it is above the rim. During what interval can the flare be seen?
A. 4 < t < 6
B. 8 < t < 10
C. 12 < t < 14
D. 0 < t < 4
Answer: A
Mathematics
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(3a2b/4ac2)/(6ab2/2bc) =
a. c-1/4 b. ab-2/4 c. a2bc-1/4 d. 18a3bc-3/8 e. 18ac-1/8
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Trace ?ABC, Using only a compass and straightedge, divide?ABC into three triangles with the same area.
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Find the measure of the indicated exterior angle in the triangle, when 
and 
.
?
?
A. 
B. 
C. 
D. 
E. 
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Factor.x2 + 6x + 9 - 16z2
A. (x - 3 - 4z)(x + 3 + 4z) B. (4z(x + 3))2 C. (x + 3 - 4z)2 D. (x + 3 - 4z)(x + 3 + 4z)
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