Calculate and round to the correct number of significant digits.8. 37.64 cm 12.5 cm9. 3.5 ft. × 4.218 ft.10. 3.45 in. + 4.2 in.

Calculate the following answer and round the final answer to the correct number of significant figures.2.2300001 x 2.00 = ?

You are solving a measurement problem where the numbers 4.5160 x 10−3, 2.09 x 107, and 5.8 x 103 are multiplied. How many significant digits should the product have? 2 1 5 3

What is the number of significant digits in

(Scientific Notation in the Real World HC)A farmer is planning how to use the land in a rectangular field. The rectangle shown represents the field.Part A: What is the area of the field in square feet? Show every step of your work. (2 points)Part B: Write the final answer in scientific notation with the correct number of significant digits. (1 point)Part C: Explain how you chose the number of significant digits in the final answer. (1 point)

18. Round down the following numbers to 2 significant figures.(a) 512(b) 4699(c)0.505619. (a) Round off 0.060 48 to 2 decimal places.(b) Round up 0.060 48 to 3 decimal places.(c)Round down 0.060 48 to 2 significant figures.(d) Round off 0.060 48 to 3 significant figures.20. (a) Round off 7092.2907 to the nearest ten.(b) Round down 7092.2907 to 1 decimal place.(c) Round down 7092.2907 to 3 significant figures.(d) Round up 7092.2907 to 6 significant figures.21. Tim has $142 953.42 in his saving account.(a) Round off this amount to(i) 2 significant figures, (ii) 3 significant figures.(b) Which of the approximate values found in (a) is more accurate?BANK22. Write down the number of significant figures for each of the following approximate values.(a) 266(d) 0.9845(b) 80 523(c)1.02(e) 0.001 52(f) 0.021 0023. Write down the possible numbers) of significant figures for each of the following approximate values.(a) 264(b) 1800(c)300, correct to the nearest ten(d) 5000, correct to the nearest integer