If it's equilateral, then all the angles are the same. 180/3 = 60 degrees
The LCM of 4 and 14 would be 28, all you have to do is put all multiples of both numbers and find the FIRST common one. So like this:
4, 8, 12, 16, 20, 24, 28
14, 28
So basically in small terms all u do is find the first multiple that BOTH numbers have and it has to be the same.
Answer:
a 0.20
Step-by-step explanation:
The standard error of the mean can be calculated using the formula
SE= where
- s is the population standard deviation of the time spend on the computer (1.4 hours)
- N is the sample size of the data collected. (49)
Using the numbers SE= =0.20
The formula for finding the height of an octagon from only one side is h=s(1 + the square root of 2). S is the length of one side. Your formula would be h=18(1 + the square root of 2).
h=18+18(the square root of 2)
h=18 + 25.4558
h=43.4558
Hope this helps!! :) And the decimal is rounded, just so you know ;). If your teacher likes everything in simplest radical form, then just don't convert the 18*the square root of 2 into a decimal and solve as you normally would.