3 years ago

How do I start to factor this quadratic which has complex zeros:

1 answer:

8 0

X^2 -2x +2 = 0
x^2 -2x +1 +1 = 0
(x - 1)^2=-1
x - 1 = sqrt -1 and -x + 1 = sqrt -1
x = (sqrt -1) + 1 and 1 - sqrt -1
sqrt means square root

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The function F(x) is describe below F(x)=3+2 what is the value of F(5)

Aleks04 [339]

F(x) = input the x
3x+2
multiply it by 3 and add 2
3*x+2=
3*5+2=
15+2 =
17

or if you meant 2x:

it would be the same just do:

3+2x
3+2*5
3+10
13

7 0

4 years ago

the midpoint of kl is m(4.8, -7.8). one endpoint is l(0.6, -5.6). find the coordinates of the other endpoint k.

Vera_Pavlovna [14]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&k&(~ x &,& y~) 
% (c,d)
&l&(~ 0.6 &,& -5.6~)
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{ x_2 + x_1}{2}\quad ,\quad \cfrac{ y_2 + y_1}{2} \right)$

$\bf \left( \cfrac{0.6+x}{2}~~,~~\cfrac{-5.6+y}{2} \right)~=~\stackrel{midpoint}{(4.8~,~-7.8)}\quad 
\begin{cases}
\cfrac{0.6+x}{2}=4.8\\\\
0.6+x=9.6\\
\boxed{x=9}\\
---------\\
\cfrac{-5.6+y}{2}=-7.8\\\\
-5.6+y=-15.6\\
\boxed{y=10}
\end{cases}$

8 0

3 years ago

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zimovet [89]

1- 8s^300+0.75s^100
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4 years ago

Abdul is creating a cushion that is 1 foot by 2 feet by 3 feet. He wants to find the least amount of fabric he will need to cove

anygoal [31]

Answer:

22 ft²

Step-by-step explanation: