Identify the type of surface represented by the given equation.
- 
= 
A. Paraboloid
B. Parabolic cylinder
C. Hyperbolic paraboloid
D.
| Ellipsoid |
Answer: C
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find cos ?.
A. 
B. 
C. 
D. 
Solve the problem.Use the formula D = 10.0 log(S/S0), where the loudness of a sound in decibels is determined by S, the number of watt/m2 produced by the soundwave, and S0 = 1.00 × 10-12 watt/m2. What is the intensity in watt/m2 of a noise measured at 40 decibels? (Round to the nearest tenth.)
A. 4 × 10-10 watt/m2 B. 1.0 × 10-7 watt/m2 C. 1.0 × 10-8 watt/m2 D. 5.5 × 1013 watt/m2
Use proportions to solve the problem.If a computer prints 8.8 lines in 4 seconds, how many lines can it print per minute?
A. 132.5 lines B. 132 lines C. 133.5 lines D. 133 lines
Solve the inequality, then graph the solution.24x > 0
A. (24, ?)
B. (-24, ?)
C. (0, ?)
D. (-?, 0]