Find an equation for the ellipse described.Center at (0, 0); focus at (0, -4); vertex at (0, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Find the distance between the pair of points on the number line.15, 3
A. -12 B. 18 C. 4 D. 12
Mathematics
Write an equation of the line.
A. y = -2x + 3
B. y = -2x
C. y = 3
D. y = - 
x + 3
Mathematics
Provide an appropriate response.Evaluate: log7 3
A. 0.5646 B. 2.5851 C. 0.3280 D. 1.2770
Mathematics
The lengths of a certain species of fish were found to be normally distributed. The mean length is 73 cm with a standard deviation of 7 cm. In a school of 480 of these fish, about how many would be longer than 57 cm? Use the Empirical Rule.
a. 22 b. 476 c. 58 d. 469
Mathematics