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klio [65]
4 years ago
9

Express 1023.4567 correct to 3 significant figures​

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
4 0

Answer:

1020

Step-by-step explanation:

well, the first three significant figures stops at the 102, so round the 1023.4567 to a whole number which just becomes 1023

then, round the answer so you only have the 102, so you would round down since 4 or less, which 3 is less than 4, you round down, and you would get 1020

that last 0 is not a significant figure because it does not have a decimal point or any other number following after it--any 0s at the end of a number are not significant if there is no decimal point or other number after them.

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Fourty mins after 4:40 is fourty mins before…
marissa [1.9K]

Answer:

B.   6:00

Step-by-step explanation:

There are 60 minutes in one hour.

To calculate 40 minutes after 4:40, separate 40 minutes into two lots of 20 minutes.

⇒ 4:40 + 20 minutes = 5:00

⇒ 5:00 + 20 minutes = 5:20

Therefore, 40 minutes after 4:40 is 5:20

To calculate the time that 5:20 is 40 minutes before, add 40 minutes to 5:20

⇒ 5:20 + 40 minutes = 6:00

Therefore, the solution is option B. 6:00

7 0
2 years ago
Read 2 more answers
This question is too hard
OLga [1]

Answer:

27 children

Step-by-step explanation:

For every 9 children, there are 4 adults. Those numbers added together equal 13. Now, if we divide the total number of adults and children by 13, we will get the number of how many groups there are of 9 kids and 4 adults.

39 / 13 = 3

There are 3 groups of 9 kids and 4 adults, which means to find the total number of children, we have to multiply 3 by 9.

3 * 9 = 27

Therefore, there are 27 children total. I know this was probably really confusing, but I hope it helped in some way! Have a lovely day!! :)

3 0
2 years ago
1 2/3 - 3/5 as fraction
densk [106]

Answer:

1  1/15 or 16/15

Step-by-step explanation:

Find the common denominator.

25/15 - 9/15 = 16/15

Have a nice day!!

Hope this helps!!

3 0
3 years ago
Two sides of a triangle measure 5in. And 12in. Which could be the length of the third side ?
AleksAgata [21]

Answer:

10

Step-by-step explanation:

I am pretty sure this is the answer because, the two sides added have to be greater than the longest side.

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4 years ago
I need help ASAP!!!!!!!!!!!!!!!!!!!!
Mariulka [41]

Answer:

I think its the last one

Step-by-step explanation:

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