180-2(55)-x=0
180-110-x=0
70-x=0
-x=-70
x=70°
Answer:
5.2 × 
Step-by-step explanation:
a number in scientific notation is expressed as
a × 
where 1 ≤ a < 10 and n is an integer
write 0.0052 as a number between 1 and 10, that is 5.2
we have to the move the decimal point 3 places to the left to retain it's value
3 places left means n is - 3
0.0052 = 5.2 × 
19.05 if you have to round round to 19
Answer:
36
Step-by-step explanation:


