If I'm understanding the question correctly, this is how I would estimate the sum.
I would round each number to the nearest tens place.
33 would be rounded down to 30.
89 would be rounded up to 90.
Then I would do 90+30.
Maya wrote two expressions that are not equivalent.
Here is how she should have factored:
45 + 72
9 x 5 + 9 x 8
9(5 + 8)
As you can see, 72 = 9 x 8, not 9 x 9 (81)
Hello! :D
Okay, lets goooooo!
"There is a profit of $6,500 in January and $17,500 in May.
There are four months between January and May.
The rate of change= ($17,500 - $6,500) 4= $11,000/ 4= 2,750
So, the rate of change in profit is 2,750 per month."
quotes HomerTheGenious
So don't thank me, thank Homer.
:)
Answer:(2,2)
Step-by-step explanation:
<span>Factor out 2
x^2 +4x -6 = 0
Take half middle coefficient and square it:
x^2 +4x +4 -6 = 4
(x+2)^2
= 10
x+2
= sqrt(10)
x
= +-sqrt(10) -2</span>
