I think your answer is c but I'm not sure
Answer:
It will take 60 seconds for the signs to light up at the same time again.
Step-by-step explanation:
Given:
One sign lights up every 10 seconds
One sign lights up every 12 seconds
They have just lit up at the same time.
To find in how many seconds will it take for the signs to light up at the same time again.
Solution:
In order to find the time in seconds will it take for the signs to light up at the same time again, we need to find the least common multiple of the the times for which the given signs light up.
The numbers are 10 and 12.
To find the LCM, we will list the multiples of each and check the least common multiple.
The multiples of 10 and 12 are :


thus, we can see that 60 is the least common multiple.
Thus, the signs will light up at the same time time after every 60 seconds.
This is a true statement.
The definition of a circle is actually: a set of points in a plane, equidistant from a given point called the center.
Answer:
Option C Geometric space
Step-by-step explanation:
Which of the following is three-dimensional and infinitely large?
<u><em>Verify each case</em></u>
case A) A plane is two-dimensional and infinitely large.
case B) A line is infinitely large but is only one-dimensional
case C) Geometric space is three-dimensional and infinitely large
case D) A solid is three-dimensional, but not infinite
therefore
The answer is Geometric space
211.8 I just took the test and I had the same question I rounded it to 212 and it said it was wrong so you had to put exactly 211.8