Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the pH if [H3O+] = 1.0 × 10-5.
A. 9
B. 5
C. -9
D. -5
Answer: B
Mathematics
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Solve the equation.|x| = -6
A. {-6} B. {6, -6} C. {6} D. no solution
Mathematics
Give the domain and range of the relation.{(-5, 1), (-5, 3), (9, 9), (4, -4), (-1, -1)}
A. domain = {4, 14, -5, -1, 9}; range = {-4, 3, -1, 9, 1} B. domain = {-4, 3, -1, 9, 1}; range = {4, 4, -5, -1, 9} C. domain = {4, -4, -5, -1, 9}; range = {-4, 3, -1, 9, 1} D. domain = {4, -5, -1, 9}; range = {-4, 3, -1, 9, 1}
Mathematics
Given the matrices A and B, find the matrix product AB.A = 
, B = 
Find AB.
A. 
B. AB is not defined.
C. 
D. 
Mathematics
Find the domain of the rational function.f(x) = 
A. All real numbers
B. All real numbers except 9
C. All real numbers except 54
D. All real numbers except 
and - 
Mathematics