Solve the equation and check your solution.
= 
A. -4, 4
B. -2, 2
C. -2, 0, 2
D. no solution
Answer: B
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Evaluate the expressing using a unit circle or state that the quantity is undefined. All angles are in radians.tan 
A. - 
B. - 
C. 
D. 
Identify the type of surface represented by the given equation.
+ 
= 5
A. Paraboloid B. Elliptical cylinder C. Ellipsoid D. Parabolic cylinder
Solve the problem.A surveyor standing 55 meters from the base of a building measures the angle to the top of the building and finds it to be 35°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 49°. How tall is the radio tower?
A. 9.96 m B. 13.71 m C. 8.97 m D. 24.76 m
Solve the problem.A collection of dimes is arranged in a triangular array with 14 coins in the base row, 13 in the next, 12 in the next, and so on with 1 dime in the last row. Find the value of the collection.
A. $10.50 B. $5.25 C. $1.05 D. $21.00