**Answer:**

**Step-by-step explanation:**

<u>Given</u>

<u>Solving for A when h = 9</u>

**Last option is correct**

Answer:

6 cells

Step-by-step explanation:

Cell A = 1 hour to complete cycle and produce 2 cells

Number of cycles completed on 6 hours = 6 cycles

Number of cell produced = 2 * number of completed cycles = 2 * 6 = 12 cells

Cell B = 2 hours to complete a cycle ; 2 cells produced per cycle

Number of cells produced after 6 hours :

Number of cycles in 6 hours = 6/2 = 3 cycles

Number of cells produced = 3 * 2 = 6 cells

Difference in cells produced : (12 - 6) = 6 cells

Diameter of cone = d = 4mm

So,

Radius of cone = r = 2mm

Slant Height = l = 6mm

Surface Area = A = ?

The formula for the surface area of cone is:

Using the values, we get:

mm²

**Therefore, the surface area of the cone with diameter 4mm and slant height of 6mm will be 16π mm²**
The answer i believe is 31.564

346 are not arm tattoos

Probability of a customer not getting an arm tattoo =

Answer: 346/389

Hope this helps.