To complete the square:
we take the coefficient ox "x" (which in this problem is -20)
we divide it by 2
square that number
then add it to both sides of the equation
-20 / 2 = -10
-10^2 = 100
then we add 100 to both sides of the equation:
x^2 -20x
x^2 -20x +100 = 100
******************************************************
To get the roots of the equation, we take the square root of both sides:
(x -10) * (x-10) = 10
(x-10) = square root (10)
x-10 =
<span>
<span>
<span>
3.1622776602
</span>
</span>
</span>
x1 =
<span>
<span>
<span>
13.1622776602
</span>
and don't forget that square root of 10 also equals </span></span><span><span><span> -3.1622776602
</span>
</span>
</span>
x2 = 10
-<span>
<span>
<span>
3.1622776602
x2 = </span></span></span>
<span>
<span>
<span>
6.8377223398
</span>
</span>
</span>
Answer:
70910 (c)
Step-by-step explanation:
You move the decimal point to the right each time.
Answer: 26∗34 2 6 ∗ 3 4
Step-by-step explanation:
3x600= 3 x 6 hundreds
= 18 hundreds
<span>= 1,800</span>
Hello again :)
We can use the slope formula and the slope - intercept form y = mx + b to find the equation.
I did that, and I got this equation:
y = 1/3 x + 5/3
The correct answer is option A
