Solve the problem.For the equation y = - 
sin(4x + 3?), identify (i) the amplitude, (ii) the phase shift, and (iii) the period.
A.
(i) -  | (ii) -  | (iii) 4 |
B.
(i)  | (ii) -  | (iii)  |
C.
| (i) 2 | (ii) 3? | (iii)  |
D.
(i)  | (ii) -  | (iii) 4 |
Answer: B
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Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counterclockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 3 and y = 10
A. -300 B. 300 C. 150 D. - 150
Find the x- and y-intercepts of the graph.
A. (0, -2), (0, 8), (4, 0) B. (-2, 0), (0, 8), (4, 0) C. (0, -2), (8, 0), (0, 4) D. (-2, 0), (0, 8), (0, 4)
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Solve the problem.The formula P = 14.7e-0.21x gives the average atmospheric pressure, P, in pounds per square inch, at an altitude x, in miles above sea level. Find the average atmospheric pressure for an altitude of 2.3 miles. Round your answer to the nearest tenth.
A. 11.0 lb/in.2 B. 8.4 lb/in.2 C. 7.8 lb/in.2 D. 9.1 lb/in.2