Factor by grouping.2x2 + 3xy + 6x + 9y
A. (x - 3)(2x - 3y)
B. (x + 3)(2x + 3y)
C. (2x + 3y)(2x + 3)
D. (2x + 3)(3x + 2y)
Answer: B
Mathematics
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Express the number in scientific notation.5,300,000
A. 5.3 × 10-7 B. 5.3 × 107 C. 5.3 × 106 D. 5.3 × 10-6
Mathematics
Solve the equation.a - 8 = -2
A. a = 10 B. a = 6 C. a = -6 D. a = -10
Mathematics
Graph the pair of parametric equations by hand, using values of t in [-2,2]. Make a table of t-, x-, and y-values, using t = -2, -1, 0, 1, and 2. Then plot the points and join them with a line or smooth curve for all values of t in [-2,2]. Do not use a calculator.x = -t + 3, y = 2t + 3
What will be an ideal response?
Mathematics
Graph the piecewise linear function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics