Write the ratio in lowest terms.4
pounds to 6 pounds
A. 
B. 
C. 
D. 
Answer: D
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Find the following. Assume that the letter can represent any real number.
A. z - 7
B. 
C. (z - 7)2
D. 
Solve the problem.The distance d (in miles) to the horizon at an altitude of h feet above sea level is given by the equation 
Simplify the right-hand side of the equation and determine what would be the distance from the top of a 1120 foot tall building to the horizon. Assume that the base of the building is at sea level. Round to the nearest tenth when necessary.
A. d = 
; 20.5
B. d = 3
; 100.4
C. d = 
; 142
D. d = 
; 41
Write the complex number in the form a + bi.6(cos 330° + i sin 330°)
A. 3
+ 3i
B. -3
+ 3i
C. 3
- 3i
D. -3
- 3i
Solve the problem.The force acting on a pendulum to bring it to its perpendicular resting point is called the restoring force. The restoring force F, in Newtons, acting on a string pendulum is given by the formula F = mg sin?where m is the mass in kilograms of the pendulum's bob, g ? 9.8 meters per second per second is the acceleration due to gravity, and ? is angle at which the pendulum is displaced from the perpendicular. What is the value of the restoring force when m = 0.7 kilogram and ? = 45°? If necessary, round the answer to the nearest tenth of a Newton.
A. 4.6 N B. 4.9 N C. 5.8 N D. 4.7 N