Since we don't have the measurements for the trapezoid, we can't find the exact cost. However, I can explain how to solve the problem.

First, you need to find the the total area of the pool cover. Since it is in the shape of a trapezoid, use the formula below.

A = 0.5(h)(the sum of the bases)

Once you have the area, multiply by 0.79 and you will have the cost.

7 0

3 years ago

The sum of a rational number and an irrational number is___ rational.

irga5000 [103]

A.) Never
the sum is always irrational

4 0

3 years ago

a parking lot contains (2 wheels) and cars (4 wheels). There are 35 vehicles and 114 wheels. How many motorcycles amd cars are t

ELEN [110]

Answer:

There are 13 motorcycles and 22 cars

Step-by-step explanation:

Let x represent the number of motorcycles, and let y represent the number of cars. We can set up a system of equations to solve this...

x + y = 35 (there are a total of 35 vehicles)

2x + 4y = 114 (the total number of tires)

Solve the first equation for either variable...

y = 35 - x

Now substitute that value into the other equation and solve...

2x + 4(35 - x) = 114 (y becomes 35 - x)

Now solve...

2x + 140 - 4x = 114

-2x = -26

x = 13 (there are 13 motorcycles)

Now plug that value into either original equation to solve for y...

13 + y = 35

y = 22 (there are 22 cars(

3 0

3 years ago