Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
(
+ 
)
A. 10
B. 
+ 
C. 
D. 5
+ 5
Answer: B
Mathematics
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Give an appropriate answer.Let
f(x) = 5 and
g(x) = -8. Find
[f(x) - g(x)].
A. -3 B. 13 C. 9 D. 5
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Solve the problem.The hydrogen ion concentration of a substance
is about 2.9 x 10-12 moles per liter. Find the pH. Round to the nearest tenth. Use the formula pH = -log [H+].
A. -12.5 B. 12.5 C. 11.5 D. 11.8
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Determine whether the ordered pair is a solution of the given equation.(2, 6)x - y = -8
A. Yes B. No
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Provide an appropriate response.Determine if the expression 7-5 is positive or negative.
A. Negative B. Positive
Mathematics