A (-2. 7) -4. 9
B (-2.7+(-.4- 4.5)
Only these A and B are equal to the expression above.
The snowfall in city b would be 7.7 inches I think
Answer:
8.6 × 10-4
Step-by-step explanation:
All numbers in scientific notation or standard form are written in the form m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer. Therefore, the decimal number 0.00086 written in scientific notation is 8.6 × 10-4 and it has 2 significant figures.
