Answer:
x = 5°
Explanation:
total sum of triangles interior angle is 180°
solve:
10x - 4° + 8x + 3° + 91° = 180°
10x + 8x - 4° + 3° + 91° = 180°
18x + 90° = 180°
18x = 180° - 90°
18x = 90°
x = 5°
He is buying one large tree, so subtract the cost of a large tree from the total:
1400 - 200 = 1200
He can spend 1200 on small trees.
Divide 1200 by the cost of a small tree to find how many small trees can be bought:
1200 / 150 = 8
He can buy 8 small trees.
Total number of trees = 8 small + 1 large = 9 total
Answer:
x = 29
Step-by-step explanation:
2x - 38 = 20
2x = 20 + 38
2x = 85
x = 58/2
x = 29
Answer:
![h(x)=\frac{1}{2}x+5](https://tex.z-dn.net/?f=h%28x%29%3D%5Cfrac%7B1%7D%7B2%7Dx%2B5)
Step-by-step explanation:
To get inverse of a function, we follow the steps shown below:
1. Change f(x) to y, if applicable
2. Interchange x and y
3. Solve for new y
That is the function, name it if applicable.
So, we have:
f(x) = 2x - 10
Now, we do:
y = 2x - 10
Now, we interchange x and y:
x = 2y - 10
Now, we solve for y:
![x = 2y - 10\\2y=x+10\\y=\frac{x+10}{2}\\y=\frac{1}{2}x+5](https://tex.z-dn.net/?f=x%20%3D%202y%20-%2010%5C%5C2y%3Dx%2B10%5C%5Cy%3D%5Cfrac%7Bx%2B10%7D%7B2%7D%5C%5Cy%3D%5Cfrac%7B1%7D%7B2%7Dx%2B5)
This is the inverse function:
![h(x)=\frac{1}{2}x+5](https://tex.z-dn.net/?f=h%28x%29%3D%5Cfrac%7B1%7D%7B2%7Dx%2B5)