<h3>Answer:</h3>
- Calvin: incorrect, sign error
- Greg: incorrect, has no relationship to the given expression
- Ruben: incorrect, sign error
- Equivalent expresssion: 7 92(4x -11)
<h3>Explanation:</h3>
The two terms on the right, -8x and +22, have even coefficients, so a factor of 2 can be factored out. If we do that, then these two terms become ...
... 2(-8x/2 +22/2) = 2(-4x +11)
We could, instead, factor out -2 so the x-coefficient inside parentheses is positive:
... -2(-8x/-2 +22/-2) = -2(4x -11)
Note that the signs of the two terms inside parentheses are different no matter which way we do it.
<u>Equivalent expressions</u>
Calvin could have written: 7 -2(4x -11)
Ruben could have written: 7 +2(-4x +11)
Greg could have written: 8(2 -x) -1. He would have rearranged the expression to 16 -8x -1 before doing so.
The correct answer is 96.
I think so C is correct
Because is true.
The first thing we must do for this case is to calculate the area of both yards.
We have then:
front yard:
A1 = (50) * (80)
A1 = 4000 feet ^ 2
Back yard:
A2 = (10) * (30)
A2 = 300 feet ^ 2
"Jayden wants to lay sod on his front yard and on half of his back yard"
Then, the total amount will be:
A = A1 + (1/2) A2
Substituting:
A = 4000 + (1/2) (300)
A = 4000 + 150
A = 4150 feet ^ 2
Answer:
jayden needs to purchase 4150 square feet of sodd
