Perform the operations. 
A. 0
B. Undefined
C. 8
D. 1
Answer: A
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Use the Pythagorean theorem to find the length of the third side of the right triangle. Leave any irrational answers in radical form.
A. 
B. 5
C. 
D. 13
Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.log2x = 5
A. {25} B. {2.32} C. {10} D. {32}
Solve the equation.
= 
A. 
, 
B. No solution
C. 
, - 
D. - 
, - 2
Solve the problem.A projectile is fired with an initial velocity of 450 feet per second at an angle of 70° with the horizontal. In how many seconds will the projectile reach its maximum altitude? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (450 cos 70°)t, and y = (450 sin 70°)t - 16t2.
A. 21.3 sec B. 18 sec C. 9.8 sec D. 13.2 sec