Multiply.-9x7(5x + 2)
A. -45x8 + 2
B. -45x - 18
C. -63x7
D. -45x8 - 18x7
Answer: D
Mathematics
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For the given polar equation, write an equivalent rectangular equation.r = 5 sec ?
A. x2 = 5 B. x = 5 C. y = 5 D. x2 + y2 = 5
Mathematics
Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-1, 1, 4) and P2
A. x = 1t - 1, y = 1t, z = - 
t + 4
B. x = 1t - 1, y = 1, z = - 
t + 4
C. x = -1t, y = 1t, z = 
t + 5
D. x = -1t, y = 1, z = 
t + 5
Mathematics
Graph the ellipse.25(x + 4)2 + 4(y - 5)2 = 100
A. 
B. 
C. 
D. 
Mathematics
Write interval notation for the graph.
A. (3, 7) B. [3, 7] C. (3, 7] D. [3, 7)
Mathematics