1) Answer: 
<u>Explanation:</u>
The equation of an ellipse is:
; where (h, k) is the center, "a" is the x-radius, and "b" is the y-radius.
Center Radius
x-axis: (10 + -10)/2 = 0 10 - 0 = 10
y-axis: (2 + -2)/2 = 0 2 - 0 = 2
Now, input the values into the equation:


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2) Answer: 
<u>Explanation:</u>
Vertices are: (0, 1) and (0, -5) ------> x-values are the same, y = 1, -5
Covertices are: (-1, -2) and (1, -2) ----> y-values are the same, x = -1, 1
Center Radius
x-axis: (-1 + 1)/2 = 0 1 - 0 = 1
y-axis: (1 + -5)/2 = -2 1 - (-2) = 3
Now, input the values into the equation:



Answer:
3
Step-by-step explanation:
slop formula:
y2-y1
____
x2-x1
y2 is 9 and y1 is 3, so y2-y1 is 6
x2 is 3, x1 is 1, so x2-x1 is 2
6/2=3
Answer:
4 and 9
Step-by-step explanation:
t2-13t+36=0
factors of 36 are:
1,2,3,4,6,9,12,18,36
factors that add up to 13 are: 9*4
factorise the equation:
(t-9)(t-4)=0
t-9=0 ---> t=9
t-4=0 ---> t=4
Answer:
439 x 0.4 = 175.6 so the discount is 175.6
Step-by-step explanation:
40% is equal to 0.4 and you just multiply. If you want to find the discount price just subtract the discount off.
Hope this helps can I have brainliest