Answer:
= 10
Step-by-step explanation:
The n th term of a geometric sequence is
= a
where a is the first term and r the common ratio
Here a = 10 and r = 30 ÷ 10 = 3, thus
= 10
exactly 512 small cubes perfectly fill a lidless cubical box. All of the small cubes were removed except those touching the bott
1 answer:
Answer: 216
Step-by-step explanation:
Since, a cube is a 3D structure,
We can understand this problem by assuming the figure in the coordinate axis.
In which, The cubes in the box along x-axis = 10
Along y-axis = 10
Along z-axis = 10
Total cubes along each x, y, z directions those are not appearing on surface are (10-2), (10-2), (10-2) = 8, 8, 8
Therefore total cubes which are not shown on the surface of the cube=
Since, the box that are not in the surface are removed.
Thus, the total boxes that are removed = 216
You might be interested in
Given:
And
Required:
To find the two possible values of c.
Explanation:
Consider
So
And also given
Now from (1) and (2), we get
Now put a in (1) we get
We can interpret that either of a or b are equal to 3 or 5.
When a=3 and b=5, we have
When a=5 and b=3, we have
Final Answer:
The option D is correct.
31 and 41