a) (f+g)(x) = f(x) + g(x) = -4x + 5x = x
b) -9(x) = -9x? I have no idea what this means.
c) (f o g)(x) = (f(g(x)) = f(5x) = -4 (5x) = -20x
<h2>
Answer:</h2><h2>
The correct option is d. (i) and (ii)</h2>
Step-by-step explanation:
The total miles covered per day = 45
No of commuting days in a week = 5
Total miles in a week = 45 * 5 = 225
The total amount spent on gasoline = $ 38
Cost of gasoline per gallon = $ 2.48
The number of gallons consumed per week =
= 15.32 gallons of gasoline per week.
This confirms (ii) statement
The amount spend on gasoline per mile =
= $0.17
This confirms (i) statement
The number of miles per gallon of gasoline =
= 14.68 miles
The statement (iii) is false.
Given:
- Surface area of cube = 150 ft²
To Find:
Solution:
As here in Question we are given Surface area of cube is 150 sq. feet. So, firstly we have find the side of edge of cube. Let 'a' be the edge of the cube
We know that,

Substituting the required values,

- Edge of the cube is 5 feet
Now,

Hence,
- Volume of the cube is 125 cu. feet
Answer:
Step-by-step explanation:

hope this helps
You put the values of x into the equation to work out y, so the y column would be -5, -1, 3, 7 (for question 6)
For question 7, the y column would be 2,2,0,-2
Use these values to draw the graphs :)