Multiply.
A. 524
B. 404
C. 424
D. 411
Answer: C
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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. 
(
+ 1)
B. 
(
+ 1)
C. 
(
- 1)
D. 
(
+ 1)
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 2 units to the left. This graph is then vertically stretched by a factor of 5 and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = -5(x - 2)2 + 7 B. y = -5(x - 2)2 - 7 C. y = -5(x + 2)2 - 7 D. y = -5(x + 7)2 - 2
Solve the system using the inverse matrix method.
?b ? 0
A. x = 
, y = 2; 
B. x = -2, y = 
; 
C. x = 
, y = -2; 
D. x = 
, y = -2; 
Simplify the expression. Assume that all variables represent nonnegative real numbers.
- 3
- 2
A. -5
B. -16
C. -16
D. -5