Which is the equation of an ellipse centered at the origin with vertices (8,0) and (-8,0) and a minor axis length of 8?

OptionB is right

Step-by-step explanation:

Given that an ellipse centered at the origin with vertices (8,0) and (-8,0) and a minor axis length of 8

Since centre is at the origin, its equation would be of the form

Since vertices are (8,0) and (-8,0) we find that a=8

Minor axis length = 2b =8 (given)

So b =4

The equation of the ellipse would be

Option B is the right answer

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40