Factor the GCF out of the given expression.9x(x - 4) + (x - 4)
A. (9x - 4)(x + 1)
B. (9x + 1)(x - 4)
C. (9x + 4)(x + 1)
D. 9x(x - 4)
Answer: B
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Solve the problem.Which of the following is not a rule for data grouped by classes:1. The classes should not overlap.2. Each piece of data should belong to only one class.3. There should be no gaps between classes.4. Classes should have the same width.
What will be an ideal response?
Write the complete binomial expansion.(x + y)5
A. x5 + 5x4y + 10x3y2 + 10x2y3 + 5xy4 + y5 B. x5 + y5 C. x6 + 6x5y + 15x4y2 + 20x3y3 + 15x2y4 + 6xy5 + y6 D. x5 - 3x4y + 10x3y2 + 10x2y3 - 3xy4 + y5
Determine if the graph of the function is concave up or concave down.y = - 
(x + 5)2 - 4
A. Concave up B. Concave down
Determine whether the proportion is true or false by writing the ratios in lowest terms.
= 
A. True B. False