Find the slope and the y-intercept of the given line.y = - 
x + 5
A. - 
; (0, -5)
B. - 
; (0, 5)
C. 
; (0, 5)
D. 
; (0, -5)
Answer: B
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Simplify. Assume that each variable is nonnegative.
? 
A. 21x2
B. 21x
C. 21x
D. 21x
Provide an appropriate response.It can be shown that an ellipse with foci (c, 0) and (-c, 0), where the sum of the distances from any point 
of the ellipse to the two foci is 2a, has the equation 
+ 
= 1. Use this result to find an equation of an ellipse with foci (3, 0) and (-3, 0), where the sum of the distances from any point of the ellipse to the two foci is 8.
A. 
+ 
= 1
B. 
+ 
= 1
C. x2 + y2 = 64
D. 
+ 
= 1
Perform the indicated operation. Write the answer in scientific notation.(9.1 × 10-3)(7.2 × 106)
A. 6.552 × 104 B. 1.8 × 103 C. 6.552 × 103 D. 16.3 × 109
Find the requested angle.The complement of 13°.
A. 77° B. 257° C. 167° D. 347°