It seems appropriate to use the linear regression function of your calculator for this. Looking at the data, you know the slope is generally positive, so only the 1st and 3rd choices are potentially viable.
A calculator shows the correlation coefficient (r) rounds to 0.816, so the appropriate selection is ...
A. 0.816
The answer could be 27 for the first 3 and 8 for the last one
That is an isosceles triangle since the 2 sides are the same length. If those 2 sides are the same length, by the Isosceles Triangle Theorem, the angles across from those sides are congruent to each other. That means that both those base angles measure whatever x is. According to the Triangle Angle-sum Theorem, the angles of a triangle all add up to equal 180. We have the vertex angle as 38 degrees, meaning that there is 180 - 38 degrees left to split between the 2 base angles. 180 - 38 = 142, and 142 divided in half is 71. x measures 71 degrees.
Answer:
C
Step-by-step explanation:
-6 is more to the left of the number line than -3
Answer: 900
Step-by-step explanation: To answer this question it has to be assumed that it is a regular polygon ie with equal angles.
Sum of the interior angles = (7-2)*180 = 5*180 = 900 degrees
So each interior angle = 900/7 = 128.57 degrees.