help The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 2 units and s = 3 units, write an expression that can be used to calculate the surface area of the cone. (4 points)

Expression for surface area is 3.14(6 * 4 + 6^2) = 3.14(24 + 36)  

surface area is 3.14(60) = 188.4 square units.

Step-by-step explanation:

hope this works

a² + b²= c²

24² + 7² = c²

c= 25

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17