Answer:
your answer is 1!
The gcf of 7 and 9 is the largest positive integer that divides the numbers 7 and 9 without a remainder. Spelled out, it is the greatest common factor of 7 and 9. Here you can find the gcf of 7 and 9, along with a total of three methods for computing it. In addition, we have a calculator you should check out. Not only can it determine the gcf of 7 and 9, but also that of three or more integers including seven and nine for example. Keep reading to learn everything about the gcf (7,9) and the terms related to it.
What is the GCF of 7 and 9
If you just want to know what is the greatest common factor of 7 and 9, it is 1. Usually, this is written as
gcf(7,9) = 1
The factors of 9 are 9, 3, 1.
The factors of 7 are 7, 1.
The common factors of 9 and 7 are 1, intersecting the two sets above.
In the intersection factors of 9 ∩ factors of 7 the greatest element is 1.
Therefore, the greatest common factor of 9 and 7 is 1.
![k:y=m_1x+b_1;\ l:y=m_2x+b_2\\\\k\ \perp\ l\iff m_1\cdot m_2=-1\\\\k\ ||\ l\iff m_1=m_2](https://tex.z-dn.net/?f=%20k%3Ay%3Dm_1x%2Bb_1%3B%5C%20l%3Ay%3Dm_2x%2Bb_2%5C%5C%5C%5Ck%5C%20%5Cperp%5C%20l%5Ciff%20m_1%5Ccdot%20m_2%3D-1%5C%5C%5C%5Ck%5C%20%7C%7C%5C%20l%5Ciff%20m_1%3Dm_2%20)
We have:
![k:5x-3y=30\ \ \ \ |-5x\\\\-3y=-5x+30\ \ \ \ |:(-3)\\\\y=\dfrac{5}{3}x-10\to m_1=\dfrac{5}{3}\\\\l:y=m_2x+b\\\\k\ \perp l\Rightarrow \dfrac{5}{3}m_2=-1\ \ \ \ |\cdot\dfrac{3}{5}\\\\m_2=-\dfrac{3}{5}](https://tex.z-dn.net/?f=k%3A5x-3y%3D30%5C%20%5C%20%5C%20%5C%20%7C-5x%5C%5C%5C%5C-3y%3D-5x%2B30%5C%20%5C%20%5C%20%5C%20%7C%3A%28-3%29%5C%5C%5C%5Cy%3D%5Cdfrac%7B5%7D%7B3%7Dx-10%5Cto%20m_1%3D%5Cdfrac%7B5%7D%7B3%7D%5C%5C%5C%5Cl%3Ay%3Dm_2x%2Bb%5C%5C%5C%5Ck%5C%20%5Cperp%20l%5CRightarrow%20%5Cdfrac%7B5%7D%7B3%7Dm_2%3D-1%5C%20%5C%20%5C%20%5C%20%7C%5Ccdot%5Cdfrac%7B3%7D%7B5%7D%5C%5C%5C%5Cm_2%3D-%5Cdfrac%7B3%7D%7B5%7D)
![l:y=-\dfrac{3}{5}x+b](https://tex.z-dn.net/?f=l%3Ay%3D-%5Cdfrac%7B3%7D%7B5%7Dx%2Bb)
The line l is passing through (-2, 7). Substitute the coordinates of the point to the equation of a line l:
![7=-\dfrac{3}{5}\cdot(-2)+b\\\\\dfrac{6}{5}+b=7\ \ \ \ |-\dfrac{6}{5}\\\\b=\dfrac{35}{5}-\dfrac{6}{5}\\\\b=\dfrac{29}{5}](https://tex.z-dn.net/?f=7%3D-%5Cdfrac%7B3%7D%7B5%7D%5Ccdot%28-2%29%2Bb%5C%5C%5C%5C%5Cdfrac%7B6%7D%7B5%7D%2Bb%3D7%5C%20%5C%20%5C%20%5C%20%7C-%5Cdfrac%7B6%7D%7B5%7D%5C%5C%5C%5Cb%3D%5Cdfrac%7B35%7D%7B5%7D-%5Cdfrac%7B6%7D%7B5%7D%5C%5C%5C%5Cb%3D%5Cdfrac%7B29%7D%7B5%7D)
![l:y=-\dfrac{3}{5}x+\dfrac{29}{5}\ \ \ \ |\cdot5\\\\5y=-3x+29\ \ \ \ |+3x\\\\3x+5y=29](https://tex.z-dn.net/?f=l%3Ay%3D-%5Cdfrac%7B3%7D%7B5%7Dx%2B%5Cdfrac%7B29%7D%7B5%7D%5C%20%5C%20%5C%20%5C%20%7C%5Ccdot5%5C%5C%5C%5C5y%3D-3x%2B29%5C%20%5C%20%5C%20%5C%20%7C%2B3x%5C%5C%5C%5C3x%2B5y%3D29)
<h2>Answer: 3x + 5y = 29</h2>
Step-by-step explanation:
explain step by step on photo, double check just in case
You gotta round the be to 100,000
Answer:
Step-by-step explanation:
when a rotation of 180 ° happens, it switches the (x,y) coordinates from (x,y) to (-x,-y) .. that's alll... soo for M then, of (3,4) it switches to M ' = ( -3, -4) see?