<span>The first three steps of completing the square to solve the quadratic equation x^2 + 4x - 6 = 0, are shown below.
step 1: x^2 + 4x = 6
step 2: x^2 + 4x + 4 = 6 + 4
step 3: (x + 2)^2 = 10
step 4: x + 2 = +/-sqrt(10)
step 5: x = sqrt(10) - 2, or x = -sqrt(10) - 2
so the steps are in order.</span>
Step-by-step explanation:
(4+4)+x=3
8+x=3
x=3-8
x= -5
So the slope of the first line is 4/3. If this line is perpendicular, then you have to flip it and switch the sign (flip it n switch it (how I remember it)). So the slope of the new line is -3/4.
Then you have to plug in the point you're given and the new slope. Use y=mx+b format.
-1=-3/4*-4+b
Then solve for b.
-3/4*-4 is 3.
-1=3+b
Subtract 3 from each side.
-4=b.
So now you have the y-intercept and slope. All you have to do is plug it in.
y=-3/4x + -4 or y=-3/4 - 4
There's your answer!
5x + x^4 - (+3x^4) - (+4x)
5x + x^4 - 3x^4 - 4x
x - 2x^4
Jdjdjdjdjdjdjdjekkdid
Answer:
D. 0.77
Step-by-step explanation:
Jonas builds a snow fort. He tells his friends it is 0.8 meters tall inside, but he rounded the height to the nearest tenth. Which could be the height of the snow fort before Jonas rounded it?
Check all options by rounding to the nearest tenth
A. 0.89 m
= 0.9 m
B. 0.74 m
= 0.7 m
C. 0.85
= 0.9 m
D. 0.77
= 0.8 m
Note: Digits 0 - 4 are rounded down while digits 5 - 9 are rounded up
Rounding to the nearest tenth means having one digits after the decimal point
