Solve the logarithmic equation.ln x + ln x4 = 5
A. 
B. e5
C. e5/4
D. e
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 pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 370 vibrations per second and a wavelength of 18 ft. Find the wavelength of another tone that has a pitch of 498 vibrations per second. Round to the nearest tenth of a foot if necessary.
A. 13.4 ft B. 0.000098 ft C. 10,236.7 ft D. 0.07 ft
Use a right triangle to write the expression as an algebraic expression. Assume that x is positive and in the domain of the given inverse trigonometric function.sin(tan-1 
)
A. 
B. x
C. 
D. 
Solve using the addition principle.-13 + t = -14
A. -27 B. 1 C. -1 D. 27