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Geometric Mean of two numbers is the square root of their product, in this case root 77 ie 8.775
volume_of_prism = area_of_base x height 275 cm3 = 25 cm2 x height => height = 275 cm3 / 25 cm2 = 11 cm
2.75 percent written as a fraction = 11/42.75 * 100/100 = 275/100 or 11/4 in fraction in lowest term
The HCF is: 25
To find the mean, you add all the numbers together and divide by the amount of numbers (in this case, 6). 2+4+2+0+1+2=11. 11 divided by 6 is equivalent to 11 over 6 (11/6), 1 5/6 (one and five sixths), or 1.83333333 with the 3 repeating (draw a line over the 3).