round the following to THREE significant figures:

i tried some of them...please check to see if i did them right...thank you

a) 356,309
a. Answer: 356,000
b) 0.05738949
a. Answer: 0.0574
c) 0.05999999
a. Answer: 0.0510
d) 583,689
a. Answer: 584,000
e) 3,556
a. Answer: 3,560
f) 0.004555
a. Answer: 0.00456
b.
g) 400,001
a. Answer:
h) 730,999
a. Answer:

The figures did not appear, so try reposting them.

A tip is to put values into scientific notation and then adjust the sig figs.

for example 0.003142 to two sig figs.

0.003142 is 3.142 x 10^-3

this is closer to 3.1 than to 3.2 so to two sig figs it is

3.1 x 10^-3

opps i am sorry about that

the questons are
356,309
0.057389490
0.0599999
583,689
5.556
0.004555
400,001
730,999

1. 6

2. 8
3. 6
4. 6
5. 4
6. 4
7. 6
8. 6

To round numbers to three significant figures, follow these rules:

1. Identify the first three significant digits. The significant digits are the non-zero digits from left to right. Zeroes between non-zero digits are also significant.

Now, let's apply these rules to the given numbers:

a) 356,309: The first three significant digits are 356. Since the next digit (3) is less than 5, we don't have to round up. Therefore, the rounded number is 356,000.

b) 0.05738949: The first three significant digits are 5, 7, and 3. The next digit (8) is greater than 5, so we round up. Therefore, the rounded number is 0.0574.

c) 0.05999999: The first three significant digits are 5, 9, and 9. The next digit (9) is also 9, which means we round up because the preceding digit (9) is odd. Therefore, the rounded number is 0.060.

d) 583,689: The first three significant digits are 583. The next digit (6) is greater than 5, so we round up. Therefore, the rounded number is 584,000.

e) 3,556: The first three significant digits are 3, 5, and 5. The next digit (6) is greater than 5, so we round up. Therefore, the rounded number is 3,560.

f) 0.004555: The first three significant digits are 4, 5, and 5. The next digit (5) is equal to 5, so we round up because the preceding digit (5) is odd. Therefore, the rounded number is 0.00456.

g) 400,001: The first three significant digits are 4, 0, and 0. The next digit (0) is equal to 0, so we round down because the preceding digit (0) is even. Therefore, the rounded number is 400,000.

h) 730,999: The first three significant digits are 731. The next digit (9) is less than 5, so we don't have to round up. Therefore, the rounded number is 731,000.

Please note that the answers for parts g) and h) are missing because you didn't provide any rounding attempts for them.