2 x 10000 = 20000
2 x 10 x 10 x 10 x 10
The answer is 2 x 10^4
Answer:
angle 5 = 102
Step-by-step explanation:
angle 2 = angle 6 { they are corresponding angles }
and then angle 6 and angle 5 = 180
78 + angle 5 = 180
angle 5 = 180-78
angle 5 = 102
Sum is

r=common ratio
a1=first term
it looks like 2^0=1 is the first term aka a1
it goes to the 9th term (2^9)
sub



the top question is the second answer and the second question is also the second answer
Answer:
A≈78.54cm² Diamter= 10
Step-by-step explanation:
hope this helps