Find an equation of the ellipse.An ellipse with center at (6, 3), a = 6, b = 4, and major axis horizontal
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
n = 2
A. 110 B. 66 C. 99 D. 55
Find the absolute extreme values of each function on the interval.f(x) = ln (-x), -8 ? x ? -1
A. Maximum value is 0 at x = -1; minimum value is -ln 8 at x = -8 B. No minimum value; no maximum value C. Minimum value is 0 at x = -1; no maximum value D. Minimum value is 0 at x = -1; maximum value is ln 8 at x = -8
Solve the problem.What is the minimum force required to prevent a ball weighing 29.8 lb from rolling down a ramp inclined 32.6° with the horizontal?
A. 8.1 lb B. 16.1 lb C. 25.1 lb D. 12.6 lb
Solve the problem.A person has $325 in her online movie account. Find the maximum number of movie downloads costing $4 each that this person can purchase. How much is left in the account?
A. 81; $3 B. 81; $1 C. 81; $0 D. 82; $0