For
ax+by=c
slope=-a/b
perpendiculare lines have slopes that multiply to -1
so
2x+3y=9
slope=-2/3
-2/3 times what=-1
what=3/2
point slope form
the equation of a line that passes through the point (x1,y1) and the slope is m is
y-y1=m(x-x1)
slope=3/2
point i (8,5)
equation is
y-5=3/2(x-8)
converted to standard form
2y-10=3x-24
-3x+2y=-14
3x-2y=14
Answer:
x = 374/7
Step-by-step explanation:
all of the angles should equal to 360 degrees since it's a quadrilateral.
So,
1+ (2x+10)+(3x-5)+(2x-20) = 360
1+ 2x+10 +3x-5+2x-20 = 360
7x -14 =360
7x = 360+14
7x = 374
x= 374/7
x= 53.428...
Hope this helps!
Please mark brainliest if you think I helped! Would really appreciate!
Answer:c -3/4pi
Step-by-step explanation:
it’s right
The nearest integer is zero.
