Find the principal square root of 
, if possible. Do not use a calculator.
A. 14
B. 
C. 
D. 
E. no real roots
Answer: B
Mathematics
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Multiply.-8(5x + 7)
A. -40x + 7 B. -40x + 56 C. -40x - 56 D. 8x
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Solve for base in the problem. Round to the nearest hundredth, if necessary.89
% of barrels is 62 barrels.
A. 55.59 B. 69.14 C. 691.4 D. 6.91
Mathematics
Find the expectation of a dice with 4 sides. The sides are numerated from 1 to 4 consistently.
a. 2.5 b. 0.25 c. 1 d. 10
Mathematics
Solve the problem.The hydrogen ion concentration of a substance is about 8.6 x 10-8 moles per liter. Find the pH. Round to the nearest tenth. Use the formula pH = -log [H+].
A. 7.1 B. -8.9 C. 8.9 D. 7.5
Mathematics