Answer: The measure of non-reflex ∠DOB is 108° and the measure of reflex ∠DOB is 252°.
Explanation:
It is given that the reflex angle ∠DOB has measure of 3.5y while the measure of ∠AOD is y.
From the given figure we can say that angle AOC and COB are supplementary angles and their sum is 180 because they are lies on a straight line.





Therefore the value of y is 72.



Therefore the reflex and is 252 degree.
The measure of non-reflex ∠DOB is,

Therefore, the measure of non-reflex ∠DOB is 108° and the measure of reflex ∠DOB is 252°.
Answer: 36
Step-by-step explanation:
Answer:
C. 13, 26, 39
Step-by-step explanation:
13 is a prime number so the numbers must be 13 and 1. Thus, you are just listing the first multiples of 13.
The perpendicular bisector of the segment passes through the midpoint of this segment. Thus, we will initially find the midpoint P:

Now, we will calculate the slope of the segment support line (r). After this, we will use the fact that the perpendicular bisector (p) is perpendicular to r:


We can calculate the equation of
p by using its slope and its point P:
Answer:
18,751
Step-by-step explanation:
18 234 . 9
516 . 1
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18 751 . 0
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