Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(9x8y-6)3/2
A. 
B. 27x12y9
C. 
D. 
Answer: A
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Provide an appropriate response.A human cannonball is to be fired with an initial speed of 70 ft/sec. The circus performer hopes to land on a cushion located 153 feet downrange at the same height as the muzzle of the cannon. The circus is being held in a large room with a flat ceiling 30 feet higher than the muzzle. Can the performer be fired to the cushion without striking the ceiling? If so, what is the proper firing angle? (g = 32 ft/sec2)
What will be an ideal response?
Express in standard notation.8.724 × 106
A. 523.44 B. 87,240,000 C. 8,724,000 D. 872,400
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(-5x + 5)(-3x - 2)
A. 15x2 - 5x - 5 B. -8x2 - 5x - 10 C. -8x2 - 5x - 5 D. 15x2 - 5x - 10
Solve each problem.The velocity of a particle (in ft/s) is given by 
where t is the time (in seconds) for which it has traveled. Find the time at which the velocity is at a minimum.
A. 6 s B. 1 s C. 2 s D. 3 s