Perform the indicated operations.
2
A. x2 - 6xy + 9y2
B. x2 - 6xy2 + 9y4
C. x2 + 9y4
D. x2 + 6xy2 + 9y4
Answer: B
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Find the center, radius, and intercepts of the circle.x2 + y2 - 2x + 4y - 7 = 0
A. (h, k) = (1, -2), r = 2
x-int: x = 1 ± 2
; y-int: y = -2 ± 
B. (h, k) = (-1, 2), r = 12
x-int: x = 1 + 2
; y-int: y = -2 + 
C. (h, k) = (-1, -2), r = 2
x-int: x = 1 + 2
; y-int: y = -2 + 
D. (h, k) = (1, -2), r = 2
x-int: x = -1 ± 2
; y-int: y =2 ± 
Use a calculator with a 
key or a 
key to solve the problem.The exponential function 
describes the price P, in dollars, of a movie ticket in a local cinema in year x, assuming a yearly inflation rate of 
What was the original ticket price (year 0)? What will the price be in year 9?
What will be an ideal response?
Perform the operation. Write the answer as a fraction in lowest terms.2
? 
A. 
B. 
C. 
D. 
Write the answer to the problem as an algebraic expression.A theater ticket for adults is a dollars and the price of a child's ticket is c dollars. If 13 adults and 39 children attend the theater one night, how much money did the theater make?
A. 13a + 39c dollars B. 13c + ca dollars C. 39a + 13c dollars D. 507ac dollars