Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. - 
- 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Answer: B
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Divide.
A. -25
B. 15
C. -15
D. - 
Solve the problem.The optimal angle of elevation ? that a shot-putter should aim for in order to throw the greatest distance depends on the velocity v of the throw and the initial height h of the shot. One model for ? that achieves this maximum distance is ? = sin-1
. Suppose a shot-putter can consistently release the steel ball with velocity of 49 feet per second from an initial height h of 5.1 feet. What angle, to the nearest degree, will maximize the distance?
A. 47° B. 43° C. 70° D. 74°
Solve the problem.Given a triangle with 
, 
, what is (are) the possible length(s) of c? Round your answer to two decimal places.
A. 16.42 or 2.44 B. 14.21 C. 16.42 or 3.41 D. 6.61
State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = 1 + 
A. Yes; degree 9 B. No; x is raised to a negative power C. Yes; degree 1 D. Yes; degree 0