Sean needs to figure out how much paint he needs in order to cover all of the sides of his ramp. what is the surface area of the
ramp?
a) 102 cm2
b) 210 cm2
c) 258 cm2
d) 432 cm2
a) 102 cm2
b) 210 cm2
c) 258 cm2
d) 432 cm2
2 answers:
You might be interested in
The given equation is:
To find the line perpendicular to it, we interchange coefficients and switch the signs of one coefficient.
The equation to a line perpendicular to it is:
$ 2y-x=c$
where, $c$ is some constant we have determine using the condition given.
It passes through $(2,-1)$
Put the point in our equation:
$2(-1)-(2)=c$
$c=-2-2$
$c=-4$
The final equation is:
$\boxed{ 2y-x=-4}$