Use a percent proportion to solve the percent problem.What percent of 65 is 52?
A. 75%
B. 120%
C. 125%
D. 80%
Answer: D
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Use the even-odd identities to find the exact value of the expression. tan (-30°)
A. -
B. -
C.
D.
Factor the expression.
?
What will be an ideal response?
Solve the system. x2 - 3y2 = 14x2 + 3y2 = 19
A. {(1, 2), (-1, 2), (1, -2), (-1, -2)} B. {(2, 1), (-2, -1)} C. {(2, 1), (2, -1), (-2, 1), (-2, -1)} D. {(-1, 2), (1, -2)}
Solve.The motion of a projectile that is fired at a 60° angle with the horizontal is given by x = t,
for t in
Suppose a projectile is fired with an initial velocity of 400 feet per second at an angle of 60° with the horizontal. Find (a) the time when it reaches maximum altitude (b) the maximum altitude.
A. (a) 21.7 seconds (b) 4330 feet B. (a) 43.3 seconds (b) 11,250 feet C. (a) 6.3 seconds (b) 625 feet D. (a) 10.8 seconds (b) 1875 feet