Answer:
F(4)=8
Step-by-step explanation:
F(x)=2(x)
F(4)
Replace x with 4
F(4)=2(4)
Multiply
F(4)=8
Answer:
The x intercept is (7/5,0)
Step-by-step explanation:
y=−5x+7
To find the x intercept, set y=0 and solve for x
0 = -5x+7
Subtract 7 from each side
0-7 = -5x+7-7
-7 = -5x
divide each side by -5
-7/-5 = -5x/-5
7/5 =x
The x intercept is (7/5,0)
Answer:
The perimeter of this rectangle is 14x + 10
Step-by-step explanation:
You want to add all of the sides together.
First, you add 4x-2 and 3x+7
4x-2 + 3x+7 = 7x+5
Then, you multiply this answer by two, since there are two of each side with each value.
(7x+5) * 2
7x * 2 = 14x
5*2 = 10
So, (7x+5) * 2 = 14x + 10
14x + 10 is your final answer
Answer: Second option.
Step-by-step explanation:
Let be "e" the number of easy puzzles Tina solved and "h" the number of hard puzzles Tina solved.
Set up a system of equations:
You can use the Eliminationn Method to solve this system of equations:
- Multiply the first equation by -30.
- Add the equations.
- Solve for "h".
Therefore, through this proccedure, you get: