Answer:
Step-by-step explanation:
The exponential function looks like the following: 
.
If the function passes through the point (2, 80), then:
→ 
Solving for 'b':
→
Then, the equation of exponential function that passes through the point (2, 80) is:
Answer:
-4
Step-by-step explanation:
Answer: 110
Step-by-step explanation:
We first need to find the maximum perimeter of the circular area rug that will fit in the rectangular space. We use the shortest side of the rectangle as the diameter of the rug.
A circle drawn inside a rectangle.
A rectangle has a length of 12 feet and a height of 7 feet. A circle is drawn inside in the center of the rectangle with a line labeled Diameter extending from the top most point of the circle to the bottom most point of the circle.
P=2πr=2π×72=21.9911 ft
We then multiply the perimeter of the rug by the cost per foot.
cost =21.9911×5=$109.9555
Rounded to the nearest whole number, the cost of the maximum circumference circular rug that can fit in the dining room is 110 dollars.
