The answer is A as he has all of the quarters when he spends no time in the arcade
Answer:
1. mean is 17.4
2. interquartile range is 30
3. mean absolute deviation is 3
4. median is 51
Step-by-step explanation:
The equation of the circle:
(h, k) - center
r - radius
We have:
Substitute:
Answer:
314 m²
Step-by-step explanation:
the formula for the surface area of a sphere (As) is
As = 4×pi×r²
the radius r (half of the diameter) is clearly indicated as 5m.
so, As = 4×3.14×5² = 4×3.14×25
I don't even need a calculator for this, as 4×25 = 100
so, As = 100×3.14 = 314
(you know, when multiplying by 10, the decimal point moves right one position. multiply by 100 it moves 2 positions, and so on).
The dance would /cost/ the school 50 dollars, making the profit -50. The dance tickets make 300, and the DJ takes away 250, making a 50 profit. However, the decorations cost 100, taking away that from 50, making -50.
