Answer:
x=120°
Step-by-step explanation:
X+X+1/2X+1/2X=360
combine all like variables
X+X=2X
1/2X+1/2X=X
2X+X=3X
3X=360
isolate x by dividing both sides by 3
360÷3=120
X=120
I THINK ITS B or A BUT I AM NOT SURE
Answer:
200 divided by 15 multiplied by 2
Answer:
8.1 * 10^-2
Step-by-step explanation:
Scientific notation is a number with it's largest digit in the one's place and its succeeding digits following it as decimals, then multiplied by a power of ten.
Appling this knowledge to the given number, we can conclude:
0.0810
= 0.081
= 8.1 * (1/10) * (1/10)
= 8.1 * 10^-1 * 10^-1
=9.1 * 10^-2