Write the sentence as an equation. Use x to represent "a number."Two subtracted from a number is equal to 20.
A. 2 + x = 20
B. 2 - x = 20
C. x - 2 = 20
D. 20 - 2 = x
Answer: C
Mathematics
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Find 
for the given function.y = 
A. - 
B. - 
C. 
D. - 
Mathematics
Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = cos x
A. - cos(cos x) sin x B. sin(cos x) sin x C. - cos x sin x D. cos x sin x
Mathematics
Solve the equation.
- 2 = 13
A. -4, 8 B. -22, 8 C. 18, 8 D. -8, 8
Mathematics
Evaluate the expression without using a calculator.log5
A. 
B. 
C. 5
D. 1
Mathematics