Answer:
1. ![f(x) = 750\cdot 0.72^{x}](https://tex.z-dn.net/?f=f%28x%29%20%3D%20750%5Ccdot%200.72%5E%7Bx%7D)
Step-by-step explanation:
The cell phone experiments an exponential depreciation, which is defined by the following formula:
, for
. (1)
Where:
- Initial cost, measured in monetary units.
- Depreciation rate, no unit.
- Time, measured in years.
- Current value of the cell phone, measured in monetary units.
If we know that
and
, then the exponential decay function that represents the situation is:
![f(x) = 750\cdot 0.72^{x}](https://tex.z-dn.net/?f=f%28x%29%20%3D%20750%5Ccdot%200.72%5E%7Bx%7D)
Which means that correct answer is 1.
Answer:
Step-by-step explanation:
<u>We know that:</u>
- Area of shaded region = Area of square - Area of circles
- Radius of circle = 3 in
- Area of circle = πr²
- Area of square = s²
<u>Solution:</u>
- Area of shaded region = Area of square - Area of circles
- => Area of shaded region = (12²) - 4(22/7 x 3 x 3)
- => Area of shaded region = (144) - 4(22/7 x 9)
- => Area of shaded region = (144) - 4(198/7)
- => Area of shaded region = 144 - 792/7
- => Area of shaded region = 144 x 7/7 - 792/7
- => Area of shaded region = 1008/7 - 792/7
- => Area of shaded region = 1008/7 - 792/7
- => Area of shaded region = 216/7 in²
Answer:
80 cents i think if i did my math right
Step-by-step explanation:
80 times 5 is 400
Answer:
its scale factor is 3
Step-by-step explanation:
plz mark brainliest