Solve the problem.At time t seconds, the center of a bobbing cork is 
(or below) water level. What is the position of the center of the cork at 
A. -1.50 cm
B. 1.87 cm
C. 1.32 cm
D. 0.71 cm
Answer: B
Mathematics
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Simplify. 62 + 42 ÷ 22
A. 13 B. 25 C. 56 D. 40
Mathematics
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 76 decibels? (Round to an appropriate number of significant digits.)
A. 4.0 × 10-4 watt/m2 B. 4.0 × 10-5 watt/m2 C. 2.0 × 1015 watt/m2 D. 7.6 × 10-10 watt/m2
Mathematics
Evaluate the expression for x = -2, y = 3, and a = -4.-4a - 6y - 3x
A. 23 B. 8 C. 19 D. 4
Mathematics
Graph using the slope and the y-intercept.x + y = 7
A. 
B. 
C. 
D. 
Mathematics