Step-by-step explanation:
This is the equation of the ellipse. Since the denominator is greater for the y values, we have a vertical ellipse. Remember a>b, so a
The formula for the foci of the vertical ellipse is
(h,k+c) and (h,k-c).
where c is
Our center (h,k) is (2, -5)
Here a^2 is 9, b^2 is 4.
So our foci is
and
Answer:
Step-by-step explanation:
d because at time 0 charges the the fixed fee then increases based on the time spends on the job
Answer:
The 
of the clean compound is approximately 10.495.
Step-by-step explanation:
If the cleaning ion concentration of the cleaning compound is ![[H^{+}] = 3.2\times 10^{-11}](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%5D%20%3D%203.2%5Ctimes%2010%5E%7B-11%7D)
, then the , no unit, of the compound is:
![pH = -\log_{10} [H^{+}]](https://tex.z-dn.net/?f=pH%20%3D%20-%5Clog_%7B10%7D%20%5BH%5E%7B%2B%7D%5D)
(1)
The of the clean compound is approximately 10.495.
Answer:
Cost = 1440 × 1.86
Cost = $2678.4
Step-by-step explanation:
The flooring costs $1.86 per square foot, or each foot squared.
First, find the total area covered by the warehouse floor.
Do this by multiplying the width of the floor by the length to find the area.
A = 30 × 48
A = 1440 feet²
Now, one square foot costs $1.86. Therefore, finding how much 1440 square feet costs will look as follows:
Cost = 1440 × 1.86
Cost = $2678.4
