starts with 20 smthing x3 +4 = 20 but what is it ???? hmmmm if you think more you can fiqure it out by just finding random numbers so use ur brain i guess???

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B2x%3D-1" id="TexFormula1" title="x^{2} +2x=-1" alt="x^{2} +2x=-1" align="absm

loris [4]

Step-by-step explanation:

x²+2x+1

x²+x+x+1

x(x+1)1(x+1).

(x+1)(x+1)

x=-1. , x=-1

6 0

3 years ago

Read 2 more answers

Side AB of triangle ABC lies on line k. The equation of line k is y = -2/5x + 8. The coordinates of C are (-10, 15)

Ivan

Answer:

True

Step-by-step explanation:

8 0

3 years ago

Solve the system of linear equations. separate the x- and y- values with a coma.

Katarina [22]

The Answer is x=7, y=6

Solve the following system:
{14 x - 4 y = 74 | (equation 1)
{7 x - 7 y = 7 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{14 x - 4 y = 74 | (equation 1)
{0 x - 5 y = -30 | (equation 2)
Divide equation 1 by 2:
{7 x - 2 y = 37 | (equation 1)
{0 x - 5 y = -30 | (equation 2)
Divide equation 2 by -5:
{7 x - 2 y = 37 | (equation 1)
{0 x+y = 6 | (equation 2)
Add 2 × (equation 2) to equation 1:
{7 x+0 y = 49 | (equation 1)
{0 x+y = 6 | (equation 2)
Divide equation 1 by 7:
{x+0 y = 7 | (equation 1)
{0 x+y = 6 | (equation 2)
Collect results:
Answer: {x = 7
{y = 6

P{lease note the brackets are supposed to go over both equations but I haven'y been able to find a way to make it work, see attachment.

7 0

3 years ago