Solve the inequality, giving its solution set in both interval and graph forms.-14 > -2c
A. (-?, 7]
B. [7, ?)
C. (-?, 7)
D. (7, ?)
Answer: D
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Perform the indicated operation.The electric current i (in A) in a circuit with a battery of voltage E, resistance R , a current i, and an inductance L, is 
, where t is the time after the circuit is closed. Find i for R = 1.321 ?, E = 5.923 V, L = 3.289 H, and t = 0.00500 s to three significant digits.
A. 8.98 B. -0.00901 C. 8.96 D. 0.00900
Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 4.1 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 6.93t B. (S ? d)(t) = 3.08t C. (S ? d)(t) = 3.9t D. (S ? d)(t) = 2.26t
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
A. 3b2
B. 
C. 4b2
D. 
Solve the exponential equation. Express the solution set in terms of natural logarithms.e x + 2 = 4
A. {ln 6} B. {e4 + 2} C. {ln 4 - 2} D. {e8}