Find the indicated trigonometric function of ?.
Find cos B and cot B.
A. cos B = 
; cot B = 
B. cos B = 
; cot B = 
C. cos B = 
; cot B = 
D. cos B = 
; cot B = 
Answer: D
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Fill in the blank.A foot is __________ a meter.
A. the same length as B. longer than C. shorter than
Solve the equation on the interval [0, 2?).sin 4x = 
A. 0, 
, ?
B. 
, 
C. 
, 
, 
, 
, 
, 
, 
, 
D. 0
Solve the problem.A projectile is fired from a height of 8.5 feet with an initial velocity of 158 ft/sec at an angle of 40° with the horizontal. The parametric equations for the path of the projectile are x = (158 cos 40°)t, and y = 8.5 + (158 sin 40°)t - 16t2,where x and y are in feet and t is in seconds. How long does it take the projectile to hit the ground? Round your answer to the nearest tenth of a second.
A. 6.3 seconds B. 6.4 seconds C. 12.9 seconds D. 8.2 seconds
Find the determinant of the matrix.
?
?
A. 
B. 
C. 0
D. 16
E. 