well, x-intercept means for a graphed funciton where the x-axis gets touched/intercepted, Check the picture below, when that occurs, y = 0, so if we want to know what "x" is at that point we can simply set y = 0 and solve for "x".
![-3x-5y=12\implies \stackrel{\textit{setting y = 0}}{-3x-5(0) =12}\implies -3x-0=12 \\\\\\ -3x=12\implies x=\cfrac{12}{-3}\implies x = -4 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \stackrel{\textit{coordinates}}{(-4~~,~~0)}~\hfill](https://tex.z-dn.net/?f=-3x-5y%3D12%5Cimplies%20%5Cstackrel%7B%5Ctextit%7Bsetting%20y%20%3D%200%7D%7D%7B-3x-5%280%29%20%3D12%7D%5Cimplies%20-3x-0%3D12%20%5C%5C%5C%5C%5C%5C%20-3x%3D12%5Cimplies%20x%3D%5Ccfrac%7B12%7D%7B-3%7D%5Cimplies%20x%20%3D%20-4%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill%5C%5C%5C%5C%20~%5Chfill%20%5Cstackrel%7B%5Ctextit%7Bcoordinates%7D%7D%7B%28-4~~%2C~~0%29%7D~%5Chfill)
You use the formula below...,
Angle theta = cos^-1 [scalar product of the two vectors ÷ multiplication of their moduli]
For example...the angle between
(2i + 3j) and (4i + 5j)
Angle theta = cos^-1 [( 2(4) + 3(5))÷((square root of (2^2 + 3^2))×(square root of (4^2 + 5^2))
Angle theta = cos^-1 [ 23 ÷ ((square root of(13)) × (square root of (41)]
Angle theta = 5°
400,000,000,000 + 90,000,000,000 + 6,000,000,000 + 600,000,000 + 60,000,000 + 300,000 + 40,000 + 2,000 + 800 + 10 + 1 Write the
Harman [31]
I think it's 4.96x10^11
if you input into a calculator and count the decimal from the end to the left it should give you your answer
p.s. that was a bad explanation, im sorry
Answer:
y= (9,13)
Step-by-step explanation:
i think im really sorry if im wrong
