Simplify ( -4 + i ) ( -7 - 8i )and write the answer in standard form.
a. 60 + 20i
b. 36 + 52i
c. 39 + 25i
d. 36 + 25i
e. 60 + 25i
d. 36 + 25i
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Find the coordinates of the vertices and foci of the ellipse.9x2 + 25y2 = 225
A. V(-5, 0), V(5, 0), F(-4, 0), F(4, 0) B. V(0, -5), V(0, 5), F(0, -3), F(0, 3) C. V(-5, 0), V(5, 0), F(-3, 0), F(3, 0) D. V(0, -5), V(0, 5), F(0, -4), F(0, 4)
Estimate the slope of the tangent line to the curve at the given point.
A. -4 B. 1/4 C. -1/2 D. -1/4
Solve the problem.The winner of the 1998 Peoria 500 (mile) race was Serge Bologna, with an average rate of 175.786 mi per hr. What was his time (to the nearest thousandth of an hour)?
A. 0.786 hr B. 12.844 hr C. 2.844 hr D. 2.919 hr
Tell whether the statement is true or false.Let A = {6, 7, 8, 9, 10, 11}, B = {8, 10, 12}, C = {6, 7, 9, 11}, D = {6, 11}, and 
C ? ?
A. True B. False