Solve.2x2 + 3y2 = 32x2 + 2y2 = 4
A. (-
, i), (
, i)
B. (-1, -i), (1, -i), (-
, i), (
, i)
C. (-
, -i), (
, i)
D. (-
, -i), (-
, i), (
, -i), (
, i)
Answer: D
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Calculate the derivative of the function. Then find the value of the derivative as specified.g(x) = - 
; g '(-2)
A. g '(x) = - 2; g '(- 2) = - 2
B. g '(x) = - 2x2; g '(- 2) = - 8
C. g '(x) = - 
; g '(- 2) = - 
D. g '(x) = 
; g '(-2) = 
Solve.A tour bus is traveling along a triangular path. The three straight lines form a right triangle. One leg of the triangle represents a distance of 48 miles. The other leg of the triangle is 24 miles shorter than the hypotenuse. What is the length of the hypotenuse of this triangle? Of the other leg?
A. The hypotenuse is 59 miles long. The shorter leg is 34 miles long. B. The hypotenuse is 63 miles long. The shorter leg is 38 miles long. C. The hypotenuse is 60 miles long. The shorter leg is 36 miles long. D. The hypotenuse is 62 miles long. The shorter leg is 35 miles long.
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 25 watches B. 36 watches C. 40 watches D. 50 watches