X 0 y was 30
at x 12 y is about 55
12-0 = 12
55-30 = 25
25/12 = 2.08 inches per year average
so answer should be D
Answer:
x = 49
Step-by-step explanation:
1- Substitute g ( x ) = 0
Reduce
g ( x ) = - x 2/4 + 7
2- Move the variable to the left
0 = - x 1/2 + 7
3- Simplify the equation
x 1/2 = 7
4- Simplify Evaluate
( x 1/2 ) ² = 7²
5- Check the solution
x= 49
6- Simplify
0= - 49 2/4 + 7
7- x = 49 is a solution
0 = 0
The answer to this question is 8.6 or c
Answer:
3
Step-by-step explanation:
=12/4
the common ratio =3
The triangles are isosceles. The following notation are for the angles. For example ABD is refer to the angle located in the B vertex, formed by the segments AB and BD.
![ABD = ADB\\40 + 2ADB = 180\\ADB = 70 = ABD\\](https://tex.z-dn.net/?f=ABD%20%3D%20ADB%5C%5C40%20%2B%202ADB%20%3D%20180%5C%5CADB%20%3D%2070%20%3D%20ABD%5C%5C)
![70 + DBC + 30 = 180\\DBC = 180 - 100 = 80](https://tex.z-dn.net/?f=70%20%2B%20%20DBC%20%2B%2030%20%3D%20180%5C%5CDBC%20%3D%20180%20-%20100%20%3D%2080)
Then
![BCD = BCD\\2BCD + 80 = 180\\BCD = 50](https://tex.z-dn.net/?f=BCD%20%3D%20BCD%5C%5C2BCD%20%2B%2080%20%3D%20180%5C%5CBCD%20%3D%2050)