Find the product.(p + 9q)(p - 9q)
A. p2 - 18q2
B. p2 - 81q2
C. p2 - 18pq - 81q2
D. p2 + 18pq - 81q2
Answer: B
Mathematics
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Estimate the sum or difference by first rounding each number to the nearest ten.64.181 + 81.1641
A. 145 B. 150 C. 100 D. 140
Mathematics
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
Mathematics
Provide an appropriate response.Write 7-2 as an ordinary number.
A. -14
B. 49
C. 
D. 
Mathematics
Convert as indicated. When necessary, round to the nearest tenth of a degree.The temperature recorded on a thermometer was 7° C. Find the corresponding temperature in degrees Fahrenheit.
A. 35.9° F B. -19.4° F C. -28.1° F D. 44.6° F
Mathematics