Answer:
C
Step-by-step explanation:
Scientific notation must be written with a one digit number followed by decimals which eliminates options B and D. Option A is incorrect because this would make the number a decimal. The answer is therefore C by process of elimination!
Hope this is helpful!
-53.754
<u>step 1:</u>
9.03 + 19.87 = 28.9
<u>step 2:</u>
3.11 - 4.97 = -1.86
<u>step 3:</u>
28.9 x -1.86 = -53.754
5.3 is one rational number between 5.2 and 5.5.
It is a rational because it can be written as a fraction a/b where a and b are integers ( not = 0):-
5.3 = 53/100.
1+2√2 ²π = 9+4√2 π cm² thats my answer
