Simplify.
A. 
B. 
C. 
D. 
Answer: C
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = 7x + 11
A. cos (7x + 11) B. - cos (7x + 11) C. - 7 cos (7x + 11) D. 7 cos (7x + 11)
Identify the type of sampling described by the proposal.A writer for an art magazine randomly selects and interviews fifty male and fifty female artists.
A. cluster sample B. stratified sample C. simple random sample D. systematic sample E. convenience sample
Solve.Five divided by the difference of a number and 7 equals the quotient of 10 and the sum of the number and 11. Find the number.
A. 25
B. -3
C. 
D. 
The following is a graph of a polynomial function. State whether the degree of the polynomial is even or odd, and give the sign (+ or -) for the leading coefficient.
A. Degree is even; - B. Degree is even; + C. Degree is odd; - D. Can't identify degree; +