What is the value of r if the line that passes through (4,3) and ( -5, r ) has a slope of -1 ?

12

Step-by-step explanation:

The point-slope equation of a line is ...

y = m(x -h) +k

for a line with slope m through point (h, k).

The line with slope -1 through point (4, 3) has the equation ...

y = (-1)(x -4) +3

y = -x +7

Then the value of y for x=-5 is ...

y = -(-5) +7 = 12

The value of r is 12.

it could 14.28 but if its not that one then it has to be the 17 one. hope this ! : )

step-by-step explanation:

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !