Factor the expression completely.25y4 - 49
A. (5y2 + 7)(5y2 - 7)
B. prime
C. (5y2 - 7)2
D. (5y2 + 7)2
Answer: A
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Evaluate.7.154 - (-0.38)
A. 7.634 B. 7.534 C. 6.774 D. 2.719
Find the x- and y-intercepts of the graph of the equation. x = y2 - 9y + 20
A. x-intercept: -20; y-intercepts: -5, -4 B. x-intercepts: 5, 4; y-intercept: 20 C. x-intercepts: -5, -4; y-intercept: -20 D. x-intercept: 20; y-intercepts: 5, 4
Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest whole number.A cone with height 3 in. and radius 8 in.
A. 201 in.3 B. 50 in.3 C. 402 in.3 D. 301 in.3
Provide an appropriate response.Suppose you want to multiply 505 ? 495 without a calculator. Explain how to do this using the fact that 505 ? 495 = (500 + 5)(500 - 5).
What will be an ideal response?