Evaluate each expression without using a calculator. Give the result in degrees.sin-1 
A. 60°
B. 330°
C. 45°
D. 30°
Answer: D
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Solve the problem.The string on a balloon is 36 millimeters long. What is this length measured in centimeters? Round to the nearest tenth, if necessary.
A. 3.6 cm B. 360 cm C. 0.4 cm D. 3600 cm
For the pair of functions, find the indicated composition.f(x) = 4x2 + 4x + 7, g(x) = 4x - 4Find (g ? f)(x).
A. 4x2 + 16x + 24 B. 16x2 + 16x + 24 C. 16x2 + 16x + 32 D. 4x2 + 4x + 3
Let x represent one number and let y represent the other number. Use the given conditions to write a system of nonlinear equations. Solve the system and find the numbers.The sum of two squares of two numbers is 20, and the difference of their squares is 12. Find the numbers.
A. 4 and 2; -4 and -2 B. 4 and 2; -4 and 2; 4 and -2; -4 and -2 C. 4 and 2; -4 and 2; 4 and -2 D. 4 and 2
Solve the problem.A box of supplies that weighs 1500 kilograms is suspended by two cables as shown in the figure. To two decimal places, what is the tension in the two cables? 
A. Tension in right cable: 1098.08 kg; tension in left cable: 776.46 kg B. Tension in right cable: 776.46 kg; tension in left cable: 1098.08 kg C. Tension in right cable: 723.54 kg; tension in left cable: 776.46 kg D. Tension in right cable: 776.46 kg; tension in left cable: 723.54 kg