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vchery21
05.10.2020 •
Mathematics
A gardener fills a 2 1/2 cubic foot wheelbarrow 2/3 of the way without soil weight 75.25 pounds. What is the weight of the soil un wheelbarrow?
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Ответ:
Volume of wheelbarrow , V = 2 1/2 ft³ = 5/2 ft³.
Volume of soil in wheelbarrow ,
.
Mass of soil in wheelbarrow , m = 75.25 pounds.
Now, volume left ,
.
Let, mass of soil un wheelbarrow is x.
Hence, this is the required solution.
Ответ:
★ Formula Applied :
★ Explanation :
Lets use substitution method ,
Let , u = sin2x
⇒ du = 2.cos2x.dx
★ Alternate Method :