Answer:
Step-by-step explanation:Area of a circle is πr2
Diameter of the cover is 20feet
Radius= diameter/2
Radius= 20/2
Radius= 10 feet
Since 1feet = 0.3045m
Then 10feet =3.045m
Area= 3.142*3.045*3.045
Area= 29.133m2
Answer:
$46000
Step-by-step explanation:
if x represents the previous years revenue, and they made 35% more than x, we need to find what 35% of x is and then add it to x to get the new total, so the equation becomes:
x + .35x = 62100
1.35x = 62100
x = 46000
Answer:
1, 2, 5
Step-by-step explanation:
All of those selections are more than 0.3
Given the equation:

You know that a lab technician finds that a sample of fluid has this pH:

Then, in order to find the hydrogen ion concentration of the fluid, you need to follow these steps:
1. Substitute the pH given in the exercise into the equation:

Multiply both sides by -1:

2. Solve for:

Remember that, by definition:

In this case, you can identify that:

Hence, substituting values and simplifying, you get:

Therefore, the answer is: