okay well first you should put it in slope-intercept form aka y = mx + b
but you have simplify everything first
2(x + 3) + 2(y + 2) = 16
2x + 3 + 2y + 4 = 16
2x + 2y + 7 = 16
-7 -7
2x + 2y = 9
-2x -2x
2y = -2x + 9
/2 /2
y = -x + 4.5
so now in a graph it should look like this:
Answer:
Step-by-step explanation:
So we have the expression:
And we wish to factor it.
First, let's make a substitution. Let's let u be equal to x². Therefore, our expression is now:
This is a technique called quadratic u-substitution. Now, we can factor in this form.
We can use the numbers -3 and -2. So:
For the first two terms, factor out a u.
For the last two terms, factor out a -3. So:
Grouping:
Now, substitute back the x² for u:
And this is the simplest form.
And we're done!
Answer:
Proportion of the trees will have diameters between 2 and 6 inches = 0.8164
Step-by-step explanation:
Given -
Mean = 4
Standard deviation = 1.5
Let X be the diameter of tree
proportion of the trees will have diameters between 2 and 6 inches =
=
= Put [
]
=
=
= .9082 - .0918
= 0.8164