Find the acute angle between the lines.8x - 7y = -3 and 9x - 7y = -7
A. 1.629 radians
B. 1.512 radians
C. 0.9983 radians
D. 0.05832 radians
Answer: D
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Write a polar equation in r and ? of an ellipse with the focus at the origin, with the eccentricity 0.8 and vertex at  FIGURE 1.png)
What will be an ideal response?
Find the center, foci, and asymptotes of the hyperbola.
- 
= 1
A. C: (0, 0); F: (0, -5), (0, 5); A: y = 
x, y = - 
x
B. C: (0, 0); F: (-5, 0), (5, 0); A: y = 
x, y = - 
x
C. C: (0, 0); F: (0, -4), (0, 4); A: y = 
x, y = - 
x
D. C: (0, 0); F: (-4, 0), (4, 0); A: y = 
x, y = - 
x
Solve the problem.The function defined by f(x) = x + 2 was used to encode the following message: 15 3 22 10 9 7 16 11 23 21using the alphabet coding method (A = 1, B = 2, C = 3, ...). Find the inverse and decode the message.
What will be an ideal response?
Find the sum or difference. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 