Answer:
Okay you are asking for the area of a circle ( drum head ) to find that is. You get R (radious) by dividing 14 by 2 and get 7
Step-by-step explanation:
A= πr^2
so what is the R? Its 7
Plug the numbers in and
and your answer is 153.94
Answer:
Step-by-step explanation:
“the center of the ellipse is located below the given co-vertex”
Co-vertex and center are vertically aligned, so the ellipse is horizontal.
Equation for horizontal ellipse:
(x-h)²/a² + (y-k)²/b² = 1
with
a² ≥ b²
center (h,k)
vertices (h±a, k)
co-vertices (h, k±b)
foci (h±c,k), c² = a² -b²
One co-vertex is (-8,9), so h = -8.
One focus is (4,4), so k = 4.
Center (h,k) = (-8,4)
c = distance between center and focus = |-8 - 4| = 12
b = |9-k| = 5
a² = c² + b² = 169
(x+8)²/169 + (y-4)²/25 = 1
-2/9 is -0.222....
-0.222... rounded is -0.22.
so it is -0.22.
when a decimal goes on, u can put a bar over(simpily draw a line on top the first few numbers) or round.
Answer:

Step-by-step explanation:
Hello,
What you did is correct...

... and you found A by identifying the term in
to get A = 5, right?
<u>What about the other terms?</u>
<u />
We can then identify the like terms:
>>> term in 
A = 5
>>> term in x
-2A+3=B
>>> constant term
6 = 6
As we know that A=5 it means that B = -2*5-3=-13
Hope this helps.
Do not hesitate if you need further explanation.
Thank you