Find the x-intercepts and then sketch the graph.f(x) = x2 - 9
A. (-3, 0)
B. (0, 0), (3, 0)
C. (3, 0)
D. (-3, 0), (3, 0)
Answer: D
Mathematics
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Solve for the indicated variable.Ve = 
mv2 for v
A. v = ± 
B. v = 
C. v = ±2 
D. v = ±
Mathematics
Factor the difference of two squares.25x2 - 81
A. (5x + 9)2 B. (5x + 9)(5x - 9) C. (25x + 1)(x - 81) D. (5x - 9)2
Mathematics
Given C = 116°, a = 13.9, and c = 9.3, use the Law of Sines to solve the triangle (if possible) for the value of b. If two solutions exist, find both. Round your answer to two decimal places. ?
A. not possible B. b = 1.99 and 6.31 C. b = 4.43 D. b = 7.68 E. b = 1.06 and 6.44
Mathematics
Solve the equation.10r + 4 = 94
A. r = 84 B. r = 5 C. r = 9 D. r = 80
Mathematics