Find a cartesian equation of the following curve, assuming the center is at the origin. Use a graphing utility to check your work.An ellipse with foci (±8, 0) and eccentricity 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ y2 = 1
Answer: B
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
f(g(x)), x = 4
A. -8 B. 6 C. -24 D. 18
Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
1/f2(x), x = 4
A. - 
B. - 
C. 
D. - 
Solve the commission problem.A salesperson earned $3,625 for selling chemicals to industry. If his commission rate is 5%, find the selling price of the chemicals.
A. $73,500 B. $715,000 C. $725,000 D. $72,500
Provide an appropriate response.Solve the inequality: 3x + 2x ? 20
A. x ? 4 B. x ? 6 C. x < 4 D. x ? 4