Below is a pattern of square arrays. How many shaded squares are in an array with 6 squares on a side? With 35 squares on a side? With n squares on a side?
1
2
3
4
5
6
35
n
...
...
Squares on a side
0
1
Shaded squares
3
6
10
6 Square on a side:
n Square on a side:

45

step-by-step explanation:

51840000 cm 2

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours