Answer: -10.9
Step-by-step explanation:
-3.6 on both sides to get rid of the 3.6, the x= -10.9
Answer:
x=8 x=-8
Step-by-step explanation:
-3|x|=-24
Divide each side by -3
-3|x|/-3=-24/-3
|x|=8
There are 2 solutions a positive and a negative
x=8 x=-8
Answer:
3 times more.
Step-by-step explanation:
The odds of landing a dart in any of the circles correspond to the surface area of the circle.
Calculate the surface area of both circles:
The formula for the area of a circle is
.
- inner circle:
![A=\pi 2^{2}=12.566](https://tex.z-dn.net/?f=A%3D%5Cpi%202%5E%7B2%7D%3D12.566)
- for the outer circle, use the formula then subtract the value of the inner circle, to find the remaining area:
![A=(\pi 4^{2} )-12.566=37.699](https://tex.z-dn.net/?f=A%3D%28%5Cpi%204%5E%7B2%7D%20%29-12.566%3D37.699)
Calculating greater chance:
Divide the larger area by the smaller area:
![37.699/12.566 = 3](https://tex.z-dn.net/?f=37.699%2F12.566%20%3D%203)
That means that the area of the outer circle is 3 times larger, making it 3 times more likely to hit the outer circle. Therefore the points for hitting the inner circle should be 3 times more.
6+4• (5-7)^2
(5-7)^2
-2^2
4
6+4+4
=14
Please note that you have to use the reason vert. opp. angles to find x, hope it helps:)