Find the value of x, suppose ?a=61°, ?b=45°.
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a. 74
b. 151
c. 135
d. 106
d. 106
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Evaluate the integral.
A. 
B. 
C. 
D. 
Given f(x) and g(x), find the sum or difference as indicated.If f(x) = 12
and g(x) = 3x
, find f(x) - g(x).
A. 9
B. 9x
C. 15
D. 9x
Describe the sample space for the experiment.A blue card followed by a green card is drawn from a box containing 3 blue cards numbered 1 through 3, and 4 green cards numbered 1 through 4.
A. {12} B. {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (4, 1), (4, 2), (4, 3)} C. {7} D. {(1, 1), (1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (2, 4), (3, 1), (3, 2), (3, 3), (3, 4)}
Solve the problem.The decay of 514 mg of an isotope is given by A(t) = 514e-0.021t, where t is time in years. Find the amount left after 63 years.
A. 137 mg B. 503 mg C. 134 mg D. 69 mg