Solve the problem.pH = -log10[H+] Find the [H+] if the pH = 3.4.
A. 3.98 × 10-4
B. 3.98 × 10-3
C. 2.51 × 10-4
D. 2.51 × 10-3
Answer: A
Mathematics
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Factor the trinomial completely.a2 - 2ab - 80b2
A. (a - 8b)(a + 10b) B. (a + 8b)(a - 10b) C. (a - 8b)(a + b) D. Prime
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Solve.x + 193 = 610
A. 117,730 B. 803 C. 427 D. 417
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Fill in the blank with one of the words or phrases listed below. 
A(n) 
is a piece of a line with two endpoints.
A. perimeter B. ray C. line segment D. transversal
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Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = 2x2 + 25x + 72
A. x-intercepts (-9, 0) and (- 4, 0); y-intercept (0,72)
B. x-intercepts (-8, 0) and (
, 0); y-intercept (0,-72)
C. x-intercepts (-8, 0) and (- 
, 0); y-intercept (0,72)
D. x-intercepts (-9, 0) and (- 4, 0); y-intercept (0,-72)
Mathematics