Step-by-step explanation:
It is a heptagon
sum of internal angle = 900
X + 120 + 158 + 126 + 125 +121 + 139 = 900
X + 789 = 900
X = 900 -789
X = 111 degree
Vertical angles are angles opposite to each other when two lines cross.
what's interesting is that vertical angles are equal.
Based on this:
angle ABC = angle EBF
3x + 8 = 2x + 48
x = 40
measure angle ABC=measure angle EBF =
3(40)+8 = 128 degrees
15 scaled up by a factor of 10 or 15 to the power of 10 (15^10) equals 576650390625
Good luck! c:
Answer:
Final answer is 
.
Step-by-step explanation:
Given expression is 
.
Now we need to find about what value for c will make the given expression , a perfect square trinominal.
Coefficient of middle term that contains x, in -7.
Take half of that so we get 
.
Then take square of the half value.
We get 
.
We add the square value to make perfect square trinomial.
Hence final answer is .
The correct answer according to my brain is 1/7
