Graph the function.y = -2x - 5
A.
B.
C.
D.
Answer: B
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Solve.The half-life of silicon-32 is 710 years. If 100 grams is present now, how much will be present in 900 years? (Round your answer to three decimal places.)
A. 91.589 g B. 41.535 g C. 0.015 g D. 0 g
Using the graph of the parabola, determine the coordinates of the vertex and focus, and the equation of the directrix.
A. Vertex (2, 3), focus (2, 2), directrix y = 4 B. Vertex (2, 4), focus (2, 3), directrix y = 2 C. Vertex (2, 3), focus (2, 4), directrix x = 2 D. Vertex (2, 3), focus (2, 4), directrix y = 2
Use the quadratic formula to solve the equation. Simplify any radicals.4x2 - x + 3 = 0
A.
B. {1 ± }
C.
D. ?
If X has a normal distribution with ? = 5 and ? = 2, find Pr(2 ? X ?6).
A. 0.2417 B. 0.9772 C. 0.6247 D. 0.7583 E. none of these