Multiply and simplify. Assume that all variables represent non-negative numbers.(
+ 
)(
- 
)
A. 
+ 
- 
- 11
B. 
+ 
+ 
- 11
C. 
+ 
- 
+ 11
D. 
+ 
+ 
+ 11
Answer: A
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Find an equation for the line tangent to the curve at the point defined by the given value of t.x = t, y = 
, t = 18
A. y = 
x
B. y = - 
x - 3
C. y = - 
x
D. y = 
x + 3
Use the counting principle to obtain the answer.A restaurant offered salads with 3 types of lettuce, 3 different toppings, and 6 different dressings. How many different types of salad could be offered?
A. 36 B. 27 C. 54 D. 12
Solve the problem.If a ball is thrown upward at 64 feet per second from the top of a building that is 120 feet high, the height of the ball can be modeled by 
feet, where t is the number of seconds after the ball is thrown. After how many seconds does the ball reach its maximum height?
A. 3.8 sec B. 4 sec C. 1 sec D. 2 sec
Factor the polynomial completely.64x3 + 8y3
A. 8(2x - y)(4x2 + y2) B. 8(2x - y)(4x2 + 2xy + y2) C. (2x - 8y)(32x2 + 2y + y2) D. 8(2x + y)(4x2 - 2xy + y2)