Answer: The inverse of the linear function f(x)=2x+1 is f^(-1) (x) = (1/2)x-1/2
Solution
f(x)=2x+1
y=f(x)
y=2x+1
Isolating x: Subtracting 1 both sides of the equation:
y-1=2x+1-1
y-1=2x
Multiplying both sides of the equation by 1/2:
(1/2)(y-1)=(1/2)2x
(1/2)y-1/2=x
x=(1/2)y-1/2
Changing "x" by "f^(-1) (x)" and "y" by "x":
f^(-1) (x) = (1/2)x-1/2
Answer for 1:
I don't know the actual answer, but for Forms, you can press ctrl + U and find the answers in the code
Answer for 2:
x = 28
Step-by-step explanation:
Since the overall angle is 90°, and we already have 33, we subtract 33 from 90
90 - 33 = 57
So we have to fill in the other 57°
2(28) = 56
56 + 1 = 57
So the answer is x = 28
Answer:
(a) 2 3/8 cups
(b) 3-cup
Step-by-step explanation:
1 1/2 + 3/4 + 1/8
The common denominator is 8
1 4/8 + 6/8 + 1/8 = 1 11/8 = 2 3/8 cups
I choose 3-cup mixing bowl since it fits 2 3/8 cups ingredients.
The answer is the third one because it describes what they want
I am not in 8th grade but it might be the 2nd one
