Find the prime factorization of the number using a factor tree.70
A. 52 ? 2
B. 10 ? 7
C. 2 ? 5 ? 7
D. 22 ? 7
Answer: C
Mathematics
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Find parametric equations for the line described below.The line through the points P(-1, -1, 3) and Q(-7, 6, -1)
A. x = t + 6, y = t - 7, z = 3t + 4 B. x = t - 6, y = t + 7, z = 3t - 4 C. x = -6t + 1, y = 7t + 1, z = -4t - 3 D. x = -6t - 1, y = 7t - 1, z = -4t + 3
Mathematics
Translate to an equation and solve. When necessary, round to the nearest hundredth.What is 75% of 7220?
A. 54,150 B. 542 C. 541,500 D. 5415
Mathematics
Use a calculator to evaluate the expression. 
A. 14,280 B. 9520 C. 57,120 D. 2380
Mathematics
Write an equation for the parabola with vertex at the origin.Focus 
A. y2 = - 
x
B. x2 = - 
y
C. y2 = -24x
D. x2 = -24y
Mathematics