Write the sentence as an equation. Use x to represent "a number."Nine times the difference of 9 and a number amounts to -36.
A. 9(9) - x = -36
B. 9(x - 9) = -36
C. 9x - 9 = -36
D. 9(9 - x) = -36
Answer: D
Mathematics
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Use implicit differentiation to find dy/dx.y
= 4
A. - 
B. - 
C. 
D. 
Mathematics
Convert to percent.
A. 17
%
B. 1
%
C. 177
%
D. 88
%
Mathematics
Factor by grouping.4m(6 - m) + 7n(6 - m)
A. m(4 + 7n)(6 - 1) B. No common factor (except 1) C. (4m - 7n)(6 - m) D. (4m + 7n)(6 - m)
Mathematics
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the [H3O+] if the pH = 2.3.
A. 3.6 × 10-1 B. 2.0 × 102 C. 2.7 × 101 D. 5.0 × 10-3
Mathematics