Solve the problem.A deep-sea diver dives from the surface to 120 feet below the surface. She then dives down 13 more feet. Find the diver's depth.
A. 133 feet below the surface
B. 107 feet below the surface
C. 105 feet below the surface
D. 136 feet below the surface
Answer: A
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Solve the problem.The ellipse 
+ 
= 1 is shifted up 5 units and left 6 units. Find an equation for the new ellipse and find the new vertices.
A. 
+ 
= 1; vertices: (-6 ± 
, 5)
B. 
+ 
= 1; vertices: (-6 , 5 ± 
)
C. 
+ 
= 1; vertices: (-6 ± 
, 5)
D. 
+ 
= 1; vertices: (-6 , 5 ± 
)
Solve.The angular velocity ? (in rad/s) of a pendulum is 
Find the angular displacement ? as a function of t if ? = 0 for t = 0.
A. ? = -0.3 sin 8t + 0.3 B. ? = 0.3 cos 8t C. ? = -0.3 sin 8t D. ? = -2.4sin 8t
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(7 - 6i)(6 + 7i)
A. 84 + 13i B. -42i2 + 13i - 42 C. 84 - 13i D. 0 - 85i
List factors to find the greatest common factor (GCF) of the numbers.84, 378
A. 14 B. 21 C. 6 D. 42