We have equation:
t=20x+31
x is number of years after 1997.
To calculate number of laptops in 2005:
x=2005-1997
x=8
t=20*8+31
t=160+31
t=191
In year 2005 school had 191 laptops.
Answer:
-1,2,7,14,25,36,49
Step-by-step explanation:
growing 2 from the series.First grown 3 then 5,7,9,11,13
Cylinder formula is 2pi(r)^2 + 2pi(r)h
2pi(0.25)^2 + 2pi(0.25)(1)
Chuck that in calculator and evaluate
Answer:
379.94 mi²
Step-by-step explanation:
The area of a circle can be figured out with this formula: πr² (3.14 is π here, as it says in the directions).
We know the diameter is 22 miles. Divide that by 2 to get a radius of 11 miles.
The equation now becomes
3.14(11²)
11 squared is 121.
3.14(121)
I recommend splitting the 121 into 100, 20, and 1.
(3.14 * 100) + (3.14 * 20) + (3.14 * 1)
Multiply 3.14 by 100, 20, and 1.
314 + 62.8 + 3.14
Add 314 and 62.8.
376.8 + 3.14
Add 376.8 and 3.14
379.94 mi² is the area of a circle with a 22-mile diameter.
Answer:
113.04 cm^2
Step-by-step explanation:
To find the area, you do radius squared, multiplied by
Radius is half of the diameter. 12/2 is 6
6^2×3.14=113.1