Answer:
y=3
-47.5
Step-by-step explanation:
I did it in my notebook.
The formula for the perimeter is 2L + 2W.
Since we know that L=10+W, we can substitute this into the equation.
2(10+W) +2W=124
20+2W + 2W=124
4W +20 = 124
4W=104
W=26
Therefore, the width is 26 inches.
Answer:

Step-by-step explanation:
<u>The Volume of a Sphere
</u>
The volume of a sphere of radius r is given by:

A. )
If the diameter of the sphere is d, the radius is r=d/2. Substituting:

Operating

Simplifying

B.)
The diameter of the sphere is 2/3 cm, thus the volume is:

Operating:



Answer:
the difference between a number and five is negative fieles a number is equal to two
Step-by-step explanation:
n-5=-2
n=-2+5
=3
Answer:
Increasing by $66 per day
Step-by-step explanation:
If sales are dropping at a rate of 2 per day, the sales function is:

If price is increasing by $1 per day, the daily price function is:

Revenue is given by daily sales multiplied by daily price:

The derivate of the revenue function gives us the daily rate of change in revenue:

Currently (t=0) her daily revenue is changing by:

Her revenue is increasing by $66 per day.