Use elimination to solve each system of equations, if possible. Identify the system as consistent or inconsistent. If the system is consistent, state whether the equations are dependent or independent. 2x + 4y = 04x + 8y = -2
A. (4, -2); consistent and independent
B. inconsistent
C. (3, 5); consistent and independent
D. (4, 5); consistent and independent
Answer: B
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Evaluate the indicated double integral over R.
; R = {(x, y): 0 ? x ? 
, 0 ? y ? ?}
A. 
B. ?
C. 
D. 
Solve the problem. Round to the nearest cent.An invoice for computer parts totals $586, including $4.21 for shipping and insurance. The terms are 3/10, n/45. If this invoice is paid within 10 days, how much is owed?
A. $568.42 B. $523.61 C. $581.79 D. $568.55
Find an equation for the ellipse described.Center at (0, 0); focus at (0, -3); vertex at (0, 7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Let A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. Find the indicated set.A ? B
A. {q, s, u, w, y, z} B. {q, s, u, y, z} C. {q, s, y, z} D. {q, s, y}