Perform the requested composition or operation.Find (f + g)(1) when f(x) = x + 4 and g(x) = x + 3.
A. 3
B. -5
C. 1
D. 9
Answer: D
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (sin x)cos x
A. cos x cot x - ln (sin x) B. (sin x)cos x(cos x cot x - sin x ln (sin x)) C. cos x ln ( sin x) D. cos x cot x - sin x ln(sin x)
Solve.A plot of land in the shape of a right triangle is formed by the intersection of three roads. A developer wants to purchase the land, which is priced at $7200 per acre. Calculate the cost of the land, given the dimensions shown in the figure. (Hint: One acre = 43,560 square feet. Round to the nearest hundred dollars.)
A. $18,200 B. $17,600 C. $17,400 D. $18,900
Subtract.
- 
A. - 
B. 
C. - 
D. 
The general term of a sequence is given. Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.an = 
n
A. geometric, r = 
B. geometric, r = 
C. arithmetic, d = 
D. neither