Solve the problem.pH = -log10[H+] Find the pH if the [H+] = 3 × 10-14.
A. 13.48
B. 13.52
C. 14.48
D. 14.52
Answer: B
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Find v ? u.v = 3i - 5j and u = -3
i + 3j
A. -15 - 9
B. -15
+ 9
C. -15
i - 9j
D. (3 - 3
)i - 2j
Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.sin2x - 8 sin x - 4 = 0
A. {28.2°, 151.8°, 208.2°, 331.8°} B. {208.2°, 331.8°} C. No solution D. {28.2°, 151.8°}
Perform the requested operation on the given function.f(x) = 9
, g(x) = 6
Find (f + g)(x)
A. 15
B. 15
C. 15
D. 15x + 15
Write a general formula to describe the variation.The surface area S of a right circular cone varies directly as the radius r times the square root of the sum of the squares of the base radius r and the height h. The constant of proportionality is ?.
A. S = ?r
B. S = ?r
C. S = ?
D. S = ?r