Determine whether the following is a trinomial square.x2 - 8x - 16
A. Yes
B. No
Answer: B
Mathematics
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Solve the equation by completing the square.x2 + x + 3 = 0
A. 
B. 
C. 
D. 
Mathematics
Use the fundamental identities to find the value of the trigonometric function.Find tan ?, given that sin ? = 
and ? is in quadrant II.
A. - 
B. - 
C. 
D. - 
Mathematics
Solve.The function h(t) = -16t2 + 128t - 240 gives the height h, in feet, of a flare fired from the bottom of a gorge 240 feet deep with an initial velocity of 128 ft/sec. The flare fired is visible only when it is above the rim (h = 0). During what interval can the flare be seen?
A. (6, 8) B. (0, 3) C. (3, 5) D. (9, 11)
Mathematics
Solve the equation using an integrating factor.
, t > 0
A. y = -t-4 + t3 + C
B. y = t-4 + t5
C. y = Ct-4 + 
t5
D. y = Ct4 + t5
Mathematics