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
Answer: D
Mathematics
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Factor and, if possible, simplify the expression.sin2x + sin2x cot2x
A. sin2x + 1 B. cot2x + 1 C. 1 D. cot2x - 1
Mathematics
Write the whole number in standard form.3000 + 70 + 4
A. 374 B. 347 C. 3740 D. 3074
Mathematics
Find the derivative.y = 
A. 
B. 
C. 
D. 
Mathematics
Let U = {q, r, s, t, u, v, w, x, y, z}; A = {q, s, u, w, y}; 
and 
List the members of the indicated set, using set braces.A' ? B
A. {s, u, w} B. {q, r, s, t, v, x, y, z} C. {r, s, t, u, v, w, x, z} D. {q, s, t, u, v, w, x, y}
Mathematics