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# What is significant about the number 21?

Updated: 9/26/2023

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Q: What is significant about the number 21?
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### How many significant figures are there in the answer for 56.4 plus 0.8833 plus 21?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

2 of them.

### There are 45 people and 21 people like dogs what is the percent?

100(21/45) = 47 %, to the justified number of significant digits, like dogs in this sample.

### What significant about the number 21?

Nothing particular. It is a triangular number but so are infinitely many other numbers. It is a semiprime but again, so are infinitely many.

### What is the significant number of 0.56?

There are 2 significant digits in the number.

### How do you decide the number of significant digits to report?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

### How does conversion factors affect the number of significant figures in a problem?

If the conversion factor is exact, then the number of significant figures in the answer is the same as the number of significant figures in the original number.If the conversion factor is an approximation, then the number of significant figures in the result is the lesser of this number and the number of significant figures in the original number.

### When multiplying significant digits what is the number of digits allowed in an answer?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

### What is the significant number for 8774?

The significant number, which defines the order of magnitude of the number is 9000.

### What determines the number of allowed significant digits when adding or subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

### What is the significant number of 85.5x77.0x0.09?

the significant number is 592.515. i checked on a calculator.

### How many significant figures do you use in multiplication?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.