There are 13 steps in the stairwell, each measuring one foot by three foot. in order to cover all the steps, how many square feet of carpet does mr. meglio need to purchase?

Mr. Meglio need to purchase 39 square feet of carpet.

Step-by-step explanation:

Given:

Total number of steps = 13

Length of each step = 1 foot

Width of each step = 3 foot

We need to find the square feet of carpet does Mr. Meglio need to purchase.

Solution:

First we will find the area of each step.

area of each step is equal to length times width.

framing in equation form we get;

area of each step =

Now amount of carpet required in square feet we multiply number of step with area of each step.

framing in equation form we get;

Amount of carpet required =

Hence Mr. Meglio need to purchase 39 square feet of carpet.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)