Express the radical in simplified form. Assume that all variables represent positive real numbers.- 
A. 5k3q4
B. 5k7q8
C. -5k3q4
D. -5k3q4
Answer: C
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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)
State the property that is illustrated.1(15 ? 11) = 15 ? 11
A. commutative property of multiplication B. identity property of multiplication C. associative property of multiplication D. distributive property of multiplication over addition
Solve the problem.A pendulum swings through an angle of 20° each second. If the pendulum is 35 inches long, how far does its tip move each second? If necessary, round the answer to two decimal places.
A. 14.65 inches B. 12.22 inches C. 10.37 inches D. 13.51 inches
Factor. Check by multiplying.-16x + 36y + 28
A. -4(4x + 9y + 28) B. -4(4x + 9y - 7) C. -4(4x - 9y - 7) D. -4(4x + 9y + 7)