Answer:
Option C
Step-by-step explanation:
<u>Step 1: Determine which option</u>
I'm not really good at those questions, but I would choose Option C. Since it states that the population is all of the members of a group which a sample is used to describe the whole group.
Like if I sample 60 seniors to check they play video games. Their response will help describe the rest of the seniors.
Answer: Option C
The standard equation for an ellipse is
where
(h,k) = coordinates of the center
a, b = semi-major and semi-minor axes
Refer to the figure shown below.
The center of the ellipse is at (0,0).
Therefore, h=0, k=0.
One focus is at (12, 0)
Therefore
c = 12
One directrix is at 14 1/12 = 169/12.
Because the directrix is located at x = a²/c, therefore
a²/12 = 169/12
a² = 169/144
a = 13
Because c² = a² - b², obtain
b² = a² - c²
= 169 - 144 = 25
b = 5
Answer:
The equation for the ellipse is
Divide sale by normal price
12/50 = 0.24 * 100 = 24 percent
24 percent of discount
Answer:
1 gallon
Step-by-step explanation:
milk she got from both cows
= 5/6+2/3
=1 1/2
milk left after some spilled
= 1 1/2- 1/2
= 1
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