Answer:
the are perpendicular to each other (option B)
Answer:
choice C. Perfect square trinomial is correct.
Step-by-step explanation:
We need to find the pattern which is represented by the polynomial
.
To find that pattern, we need to factor ![4x^2+12x+9](https://tex.z-dn.net/?f=4x%5E2%2B12x%2B9)
![4x^2+12x+9](https://tex.z-dn.net/?f=4x%5E2%2B12x%2B9)
![=4x^2+6x+6x+9](https://tex.z-dn.net/?f=%3D4x%5E2%2B6x%2B6x%2B9)
![=2x(2x+3)+3(2x+3)](https://tex.z-dn.net/?f=%3D2x%282x%2B3%29%2B3%282x%2B3%29)
![=(2x+3)(2x+3)](https://tex.z-dn.net/?f=%3D%282x%2B3%29%282x%2B3%29)
![=(2x+3)^2](https://tex.z-dn.net/?f=%3D%282x%2B3%29%5E2)
which is a perfect square.
Hence choice C. Perfect square trinomial is correct.
Answer:
x = -1
, y = 1
Step-by-step explanation:
Solve the following system:
{5 x + 3 y = -2 | (equation 1)
3 x + 2 y = -1 | (equation 2)
Subtract 3/5 × (equation 1) from equation 2:
{5 x + 3 y = -2 | (equation 1)
0 x+y/5 = 1/5 | (equation 2)
Multiply equation 2 by 5:
{5 x + 3 y = -2 | (equation 1)
0 x+y = 1 | (equation 2)
Subtract 3 × (equation 2) from equation 1:
{5 x+0 y = -5 | (equation 1)
0 x+y = 1 | (equation 2)
Divide equation 1 by 5:
{x+0 y = -1 | (equation 1)
0 x+y = 1 | (equation 2)
Collect results:
Answer: {x = -1
, y = 1
Answer:
(5x+1)(x+7)
Step-by-step explanation:
4x^2+26x+6+x^2+10x
5x^2+36x+7
(5x+1)(x+7)
Prove
5x*x + 5x*7 + 1*x + 1*7
= 5x^2 + 35x + x + 7
= 5x^2 + 36x + 7
Hey there! I'm happy to help!
28(5280)=147840 feet per hour.
There are 60 minutes in an hour. To find out how many feet Bolt runs in a second we divide by 60.
147840/60=2464
And we divide by sixty again to get to seconds.
2464/60=41 1/15 feet per second.
Have a wonderful day! :D