The length of a side of a square is represented by 2x. The area of the square is

Lady bird [3.3K]

$x^{3}$ + 3 $x^{2}$ (1) + 3(x) * $1^{2}$ + $1^{3}$ = 0
0 = (x + 1)^3
0 = x + 1
-1 = x

8 0

2 years ago

John, Mark, and Sheila commute a total of 2 hours a day. John's commute is 0.5 of an hour longer than Mark's, and Sheila's commu

konstantin123 [22]

Answer:

John's commute = x + 0.5

Sheila's commute = 2x

Step-by-step explanation:

Given:

Total hour commute = 2

Mark's commute = x

John's commute = x + 0.5

Sheila's commute = 2x

Find:

Each commute

Computation:

Total hour commute = Mark's commute + John's commute + Sheila's commute

2 = x + x + 0.5 + 2x

4x = 1.5

x = 0.375 hour

John's commute = x + 0.5

John's commute = 0.375 + 0.5 = 0.875 hour

Sheila's commute = 2x

Sheila's commute = 2(0.375) = 0.75 hour

4 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20-11x%3D-28" id="TexFormula1" title="x^{2} -11x=-28" alt="x^{2} -11x=-28" align="

amid [387]

Answer:

x = 4, 7

Step-by-step explanation:

We start off with the equation $x^{2} -11x = -28$ . from there, we can add 28 to both sides to get $x^{2} -11x+28 = 0$ . From there, we have to factor the equation. In order to factor it, we have to ask ourselves what 2 numbers would add up to -11 and multiply to 28? In this case, the answer would be -7 and -4. So, we get the equation (x-7)(x-4) = 0. Then, we set each part of the equation = 0 to get the anwsers x = 4 and 7. Hope this helps!