17. A piece of PVC material weighs 0.063 pounds per cubic inch. What's the weight of a 36-inch piece of PVC pipe with an outside

Mathematics

1 answer:

scoray [572]2 years ago

8 0

It is b because if thats your numbers and u divide weight by inches and times it by the diameter you get your answer

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In AOPQ, o = 700 cm, p = 840 cm and q=620 cm. Find the measure of _P to the nearest degree

Westkost [7]

Given:

In triangle OPQ, o = 700 cm, p = 840 cm and q=620 cm.

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Solution:

According to the Law of Cosines:

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Using Law of Cosines in triangle OPQ, we get

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$\cos P=\dfrac{490000+384400-705600}{868000}$

$\cos P=\dfrac{168800}{868000}$

On further simplification, we get

$\cos P=0.19447$

$P=\cos^{-1}(0.19447)$

$P=78.786236$

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Therefore, the measure of angle P is 79 degrees.

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