Answer:
y+4=-(2/5)(x-5) ----> equation of the line into point slope form
y=-(2/5)x-2 ----> equation of the line into slope intercept form
2x+5y=-10 ----> equation of the line in standard form
Step-by-step explanation:
step 1
Find the slope of the given line
we have
5x-2y=-6
isolate the variable y
2y=5x+6
y=2.5x+3
The slope m of the given line is m=2.5
step 2
Find the slope of the line perpendicular to the given line
We know that
If two lines are perpendicular, then their slopes are inverse reciprocal each other
so
m1=5/2
the inverse reciprocal is
m2=-2/5
step 3
Find the equation of the line into point slope form
y-y1=m(x-x1)
we have
m=-2/5
point (5,-4)
substitute
y+4=-(2/5)(x-5) ----> equation of the line into point slope form
y=-(2/5)x+2-4
y=-(2/5)x-2 ----> equation of the line into slope intercept form
Multiply by 5 both sides
5y=-2x-10
2x+5y=-10 ----> equation of the line in standard form
Answer:
450
Step-by-step explanation:
<span>-6+14 =12-8x
-6+14 = 8
then
8 = 12 - 8x -12
8-12 = 12 - 12 -8x
8-12 = -4
and
12-12=0
then
-4 = -8x /-8
-4/-8 = -8x/-8
-4/-8 = 1/2
then
1/2 = x
so that: x = 1/2 = 0.5
hope that helps
</span>
Answer: 450 cm
Step-by-step explanation:
10 x 9 = 90 x 5 = 450