Solve the system by using the inverse of the coefficient matrix. 5x + 4y = 84x - 2y = 22
A. {(4, -3)}
B. {(3, -4)}
C. {(-4, 3)}
D. {(-3, 4)}
Answer: A
Mathematics
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Evaluate the indicated double integral over R.
; R = {(x, y): 0 ? x ? 3, 0 ? y ? 1}
A. -12 B. 15 C. 24 D. 12
Mathematics
Solve the problem.Find the tangent to y = cos x at x = 
.
A. y = - x + 
B. y = x + 
C. y = 1
D. y = - x - 
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Identify the specified numbers.The real numbers in the following list:
, -6, 
, 6.3, -0.83, 
, 
, 
A. 
, -6, 6.3, -0.83
B. 
, -6, 
, 6.3, -0.83, 
, 
, 
C. -6, 6.3, -0.83
D. 
, -6, 6.3, -0.83, 
Mathematics
The circle graph shows the results of the student council presidential election and the percent of the vote each person received.
What percent of the votes did Ben NOT get?
A. 83% B. 65% C. 74% D. 17%
Mathematics