Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 1012
B. 10-12
C. 0.08
D. 2.48
Answer: B
Mathematics
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Give the measure of the requested angle.The supplement of angle x is 60° more than twice the complement of angle x. Find the measure of angle x.
A. 30° B. 60° C. 120° D. 40°
Mathematics
Multiply. Write the answer in descending order and combine like terms.(m + 4)(m + 2)
A. m2 - 6m + 8 B. m2 + 6m + 8 C. m2 - 6m - 8 D. m2 + 6m - 8
Mathematics
Factor.(m + 1)(a - 8) + (m + 1)(a + 5)
A. (m + 1)(a + 13) B. (m + 1)(a - 13) C. (m + 1)(2a - 3) D. (m + 1)(a2 - 3)
Mathematics
Find the product and simplify. Assume all variables represent nonnegative real numbers.-
? 
A. -9
B. -
C. 3
D. -3
Mathematics