Find the exact value without using a calculator. tan 
A. 
B. -1
C. 
D. 1
Answer: D
Mathematics
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Solve the problem.Maximize 
subject to 
, 
and 
A. 1 B. 17 C. e D. 0
Mathematics
Perform the indicated operation.The voltage E (in V) in a circuit with a battery of resistance R , a current i, and an inductance L, is 
, where t is the time after the circuit is closed. Find E for R = 1.238 ?, i = 0.00152 A, L = 3.287 H, and t = 0.00600 s to three significant digits.
A. 0.000940 B. 0.000942 C. 0.834 D. -0.832
Mathematics
Estimate the value as a whole number or as a mixed numeral where the fractional part is 
. 315 ÷ 5
A. 63
B. 61
C. 62
D. 64
Mathematics
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(2, 8)} B. {(3, 9)} C. {(2, 9)} D. {(3, 8)}
Mathematics