Answer:
D
Step-by-step explanation:
40 / 2 = 20
area = (pi)*r*r
20*20*(PI) = circle area
it's half of the area, so you need to divide it by 2
![\frac{20^{2} }{2} \pi](https://tex.z-dn.net/?f=%5Cfrac%7B20%5E%7B2%7D%20%7D%7B2%7D%20%5Cpi)
Answer:
![f=278](https://tex.z-dn.net/?f=f%3D278)
Step-by-step explanation:
![f-81=197](https://tex.z-dn.net/?f=f-81%3D197)
Add 81 to both sides:
![f-81+81=197+81](https://tex.z-dn.net/?f=f-81%2B81%3D197%2B81)
![f=278](https://tex.z-dn.net/?f=f%3D278)
Answer: B
Step-by-step explanation: Hope this help :D
Answer:
A. g(x) = -2^x.
Step-by-step explanation:
If g(x) = -2, it would be a straight line running horizontally.
If g(x) = -x, it would be a linear equation.
If g(x) = -|x|, it would be an absolute value function, which is a graph in a v-shape.
So, the remaining answer is that A. g(x) = -2^x.
Hope this helps!
Answer:
false
Step-by-step explanation:
3x+4y=24 multiplied by 2 equals: 6x+8y=48
if you subtract 6x+8y=24 from 6x+8y=48, you get 0=24, which is not true. Therefore the statement is false.