Find the midpoint of the line segment joining the points P1 and P2.P1 = (7, 1); P2 = (-16, -16)
A. 
B. 
C. 
D. 
Answer: A
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Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.11 = 4e2x
A. 0.506 B. 1.012 C. 1.459 D. 0.865
Find the length of the curve.The spiral r = 3?2, 0 ? ? ? 2
A. 8((?2 + 1)3/2 - 1)
B. 
?5
C. 
D. 56
Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so. x - y + 2z = -33x + z = 0 x + 4y + z = 12
A. {(0, 3, 0)} B. {(0, 3, -3)} C. ?; inconsistent system D. {(0, 0, 3)}
A women's clothing chain takes inventory of one brand of sweater. The sweaters come in 3 sizes: small, medium, and large, and 5 colors. The inventories at stores A, B, and C are represented by the matrices below. 
A = 
; B = 
; C = 
Use the matrix operations on a graphing calculator to show that A + (B + C) = (A + B) + C.
What will be an ideal response?