Equal to the area. Area of circle is
![\pi r^2](https://tex.z-dn.net/?f=%20%5Cpi%20r%5E2)
This equals to
![4 \pi](https://tex.z-dn.net/?f=%204%20%5Cpi%20)
due to 2^2.
Circumference is
![2 \pi r](https://tex.z-dn.net/?f=2%20%5Cpi%20r)
This equals to
![2 \pi (2)](https://tex.z-dn.net/?f=2%20%5Cpi%20%282%29)
When you multiply the 2 and the radius together, they equal to 2^2.
Which results to
Answer:
<h2>(g o f)(- 4) = 570</h2>
Step-by-step explanation:
f(x)=4x+5
g(x)=4x² - 5x - 3
To find (g o f)(-4) we must first find
(g o f )(x)
To find (g of f)(x) substitute f(x) into g(x)
That's
(g o f)(x) = 4(4x + 5)² - 5(4x - 5) - 3
= 4( 16x² + 40x + 25) - 20x + 25 - 3
= 64x² + 160x + 100 - 20x + 22
(g o f)(x) = 64x² + 140x + 122
To find (g o f)(- 4) substitute the value of x that's - 4 into (g o f)(x)
Thats
(g o f)(- 4) = 64(-4)² + 140(-4) + 122
= 64(16) - 576 + 122
= 1024 - 454
We have the final answer as
<h3>(g o f)(- 4) = 570</h3>
Hope this helps you
Answer:
x = 20
Step-by-step explanation:
x° + 2x° + (x+10)° = 90°
3x° + x° + 10° = 90°
4x° + 10° = 90°
4x° = 90°-10°
4x° = 80°
x = 80/4
x = 20
Answer:
3
Step-by-step explanation:
6x - 2x + 12 - 8x = 6x + 6 / 10
= 4x + 12 - 8x = 6x + 6 / 10
= 120 - 40x = 6x + 6
= 120 - 40x - 6x - 6
= - 46x = -114
= x = 114 / 46
= 2.47 ~~ 3.