Write the expression in terms of sines and/or cosines, and then simplify.tan x csc x
A. 1
B. sec x
C. cos x
D. csc x
Answer: B
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Solve.One end of a wire is attached to the top of a 10-foot pole and the other end is anchored into the ground 5 feet from the base of the pole. Find the length of the wire, rounded to the nearest tenth.
5 feet
A. 15 ft B. 15.5 ft C. 11.7 ft D. 11.2 ft
Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 9, y = 4
A. 
B. 
C. 
D. 
Provide an appropriate response.The "trapezoidal" sum can be calculated in terms of the left and right-hand sums as ? .
A. left-hand sum - right-hand sum
B. left-hand sum + right-hand sum
C. 
D. None of the above is correct.
Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 + y2 = 93x2 - y2 = 9
A. (0, 3), (0, -3)
B. (
, 0), (-
, 0)
C. (0, 
), (0, -
)
D. (3, 0), (-3, 0)