Answer:
<u>254.34 in²</u>
Step-by-step explanation:
<u>Area of a circle</u>
- <u>r = radius of the circle</u>
<u>Solving</u>
- A = 3.14 x (9)²
- A = 3.14 x 81
- A = <u>254.34 in²</u>
Answer:
73 - 2x = 86 - 3x
So 3x - 2x =86 - 73 so x=13
Step-by-step explanation:
Then m<1 = 73-2(13) = 47
M<2=82-3(13)=47
So both angles are having same value
Please Brainlist me
Assume the parabola is placed on a graph where the x-axis is the top of the dish.
The vertex is then at (0,-30) The x-intercepts or zeros are at (-30,0) and (30,0)
The equation of such parabola would be:

Plug in vertex to find value of 'a'

Now find the focus given that


Answer: the microphone should be placed 7.5 inches from vertex.
The maximum number of nights he could stay is 4 nights