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.

part b: what is the surface area of the cone? show your work

A. Surface Area = 3.14 × (2 × 3 + 2²)

B. Surface Area = 31.4 (unit)²

Step-by-step explanation:

A. The expression used for calculate the surface area of the cone is:

Surface Area = 3.14 × (r×s + r²)

If r = 2 and s = 3

then, Surface Area = 3.14 × (2 × 3 + 2²)

B. Surface Area = 3.14 × (2 × 3 + 2²)

⇒ Surface Area = 3.14 × (6 + 4)

⇒ Surface Area = 3.14 × (10)

⇒ Surface Area = 31.4 (unit)²

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!

b. 2 and 4

step-by-step explanation: