Answer:
3 sides
Step-by-step explanation:
Interior angle = {n - 2}{180/n}
60 = {n - 2}{180/n}
Cross multiply
60n = {n - 2}180
Dividing through by 60
n = (n - 2)3
n = 3n - 6
3n - n = 6
2n = 6
n = 6/2
n = 3
40º
7) In this problem, we can see that both tangent lines to that circle come from the same point O.
So, we can write out the following considering that there is one secant line DO and one tangent line to the circle AO
Answer:
sometimes
Step-by-step explanation:
adjacent angles are two angles that share a vertex, common side/ray between them, and do not overlap.
only supplementary adjacent angles always add up to 180 degrees,
both x or y could be any angle, as long as they're sharing a common side and vertex.
It would cost $1,875.
1.25 x 1500 = 1875
Answer:
The margin of error for the give set of data = 10.78
Step-by-step explanation:
Standard deviation = 5.5
Mean = 265
To calculate the margin of error for the given set of data : Simply multiply the given standard deviation with the associated z score
Now, the confidence level is not given. So, assume the confidence level to be 95%
Z-score for 95% confidence level = 1.96
Therefore, Margin of error = Z-score for 95% confidence level × Standard deviation
⇒ Margin of error = 1.96 × 5.5
⇒ Margin of error = 10.78
Hence, the margin of error for the give set of data = 10.78