Agrain of sand weighs approximately 0.011 grams. there are approximately 7.5 x 10^18 grains of sand in the world. using scientific notation, calculate approximately how much all the grains of sand in the world weigh (in grams). show and explain your work, rounding to the nearest hundredth; answer in a complete sentence.

.011 = 1.1* 10^-2 in scientific notation

1.1*10^-2 * 7.5 * 10^18 = (1.1*7.5) * 10 ^ (-2+18)

8.25*10^16

The sand weighs 8.25 * 16^16 grams.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

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step-by-step explanation: