Factor the perfect square.25x2 - 70x + 49
A. (5x + 7)2
B. (5x + 7)(5x - 7)
C. (5x - 7)2
D. (5x - 8)2
Answer: C
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Solve the problem.The concentration of a certain drug in the bloodstream x hr after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.07.
A. 0.28 B. 0.49 C. 0.40 D. 0.03
Rewrite the number in the statement in scientific notation.A bacterium measures 0.00000928 centimeters.
A. 9.28 × 10-7 B. 9.28 × 107 C. 9.28 × 10-5 D. 9.28 × 10-6
Provide an appropriate response.Two hundred twenty-two percent would be equal to 2.22 as a decimal.
A. True B. False
Determine the quadratic function whose graph is given.
Vertex: (1, 9)y-intercept: (0, 8)
A. f(x) = x2 - 4x + 8 B. f(x) = -x2 + 2x + 8 C. f(x) = -x2 + 2x - 8 D. f(x) = -x2 - 4x + 8