C. octagon but even though u dont have no picture
Hopefully the math terms won't confuse anyone.
So in the series, a_6 = 9 and a_8 = 15. Since it's an arithmetic sequence, all the terms in the series can be represented as:
a_n = a_0 + n * k
where n is the nth number. K is a constant you add to reach the next term, and a_0 is the starting constant.
a_6 = a_0 + 6 * k
a_8 = a_0 + 8 * k
solving this system gives you that
k = 3 and a_0 = -9
for any term n for this arithmetic sequence,
a_n = -9 + 3 * k
Answer:
So the value of u is
degree.
Step-by-step explanation:
Given;
Three angle
,
degree and
degree in a Triangle.
We know;
Addition of three angle in a triangle is equal
degree





∴ The value of u is [tex]24[\tex] degree.