Rationalize the denominator.
A. 
- 
B. 
C. 
D. 
Answer: B
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (0, 4) and (0, -4); foci at (0, 11) and (0, -11)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Perform the desired operation. Write the answer in the form a + bi.-2i(-4 + 2i)
A. 4 + 8i B. 8i - 4i2 C. 8i + 4i2 D. -4 + 8i
Solve the problem.In 1996, an outbreak of a disease infected 14 people in a large community. By 1997, the number of those infected had grown to 33. Find an exponential growth function that fits the data. (Round decimals to three places.)
A. N(t) = 14e0.857t, where t is the number of years after 1997. B. N(t) = 14e8.57t, where t is the number of years after 1996. C. N(t) = 14e0.857t, where t is the number of years after 1996. D. N(t) = 14e8.57t, where t is the number of years after 1997.
Simplify.(-15)
- 3 ÷ 
A. -9 B. 9 C. 3 D. -3