Solve the problem.A rotating beacon is located 14 ft from a wall. If the distance from the beacon to the point on the wall where the beacon is aimed is given by a = 14|sec 2?t|,where t is in seconds, find a when t = 0.31 seconds. Round your answer to the nearest hundredth.
A. -38.03 ft
B. 24.91 ft
C. 31.47 ft
D. 38.03 ft
Answer: D
Mathematics
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Use values from the compound interest table to find the compound amount. Round to the nearest cent.
$7,670 at 8% compounded semiannually for 12 years
A. $19,314.36 B. $15,033.20 C. $12,279.92 D. $19,660.51
Mathematics
Solve the problem.Find the volume of a box 8.0 cm × 8.6 cm × 5.1 cm. (Round results to the nearest tenth.)
A. 326.4 cm3 B. 223.7 cm3 C. 591.7 cm3 D. 350.9 cm3
Mathematics
Find the solutions to the system of equations by the addition method.
- 
= - 
= 
A. (
, 3)
B. (- 
, 3)
C. (- 
, -3)
D. (
, -3)
Mathematics
Find dy/dx by implicit differentiation.-5xy + 2y - 8 = 0
A. 
B. 
C. 
D. 
Mathematics