Solve the system of equations using Cramer's rule.3x + 5y = -336x + 7y = -48
A. (-2, -5)
B. (0, -7)
C. (-1, 6)
D. (-1, -6)
Answer: D
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 1.00 × 10-11 B. 1.11 × 10-10 C. 9.09 × 10-13 D. 8.33 × 10-14
Mathematics
Evaluate the surface integral of the function G over the surface S.G(x, y, z) = 
; S is the surface of the parabolic cylinder 28y2 + 7z = 14 bounded by the planes 
x = 1, y = 0, and z = 0
A. 
B. 
C. 
D. 
Mathematics
Write the complex number in rectangular form.8 cis 135°
A. -4
+ 4i
B. 4
- 4i
C. 8
+ 4i
D. 8
- 4i
Mathematics
Solve.A baseball manager has 11 players of the same ability. How many 9 player starting lineups can he create?
A. 362,880 B. 55 C. 99 D. 19,958,400
Mathematics