With ellipse the equation to find c or the distance from the center to the foci is c^2 = a^2 - b^2. So if you plug those numbers in you get:
c^2 = 25 - 9
c^2 = 16
c = 4
The distance from the center to each foci is 4
Step 1: Simplify each side, if needed.
Step 2: Use Add./Sub. Properties to move the variable term to one side and all other terms to the other side.
Step 3: Use Mult./Div. ...
Step 4: Check your answer.
I find this is the quickest and easiest way to approach linear equations.
Example 6: Solve for the variable.
Hope this helps:)
3 dozen = 36
1/3 ÷ x = 5 ÷ 36
1/3 × 36 = x × 5
12 = 5x
12/5 = x
12/5 cups of flour is needed
Y=2x + 15
y = 11-x
In order to solve for y add/subtract the x terms to the other side
Answer:
0
Step-by-step explanation:
(sorry I am on my computer but anything as 21π/2 is a fraction)
Cot= cos x/sin x
cot(21π/2 - 0) =0
Simplified
cot(21π/2)
=cot(π/2)
=0