Subtract.-9 - (-8)
A. 17
B. -1
C. -17
D. 1
Answer: B
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Find the equation in standard form of a hyperbola centered at the origin that passes through the given points and whose graph approaches the given asymptotes.(-4, 0) and (4, 0); y = - 
x and y = 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Write the first three terms in the binomial expansion, expressing the result in simplified form.(3x + 2y)8
A. 8x8y + 7x7y2 + 6x6y3 B. 6561x8y + 34,992x7y2 + 81,648x6y3 C. 6561x8 + 34,992x7y + 81,648x6y2 D. 8x8 + 7x7y + 6x6y2
Evaluate the expression. Write your answer without negative exponents.32
A. -9 B. 6 C. 9 D. -6
Tell whether the given rational expression is proper or improper. If improper, rewrite it as the sum of a polynomial and a proper rational expression.
A. improper; 1 + 
B. improper; -1 + 
C. proper
D. improper; 1 - 