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3 years ago

Jonathan had some DVD's. he gave 6 of them away.write an algebraic expression for the number of DVD's Jonathan has left

Mathematics

1 answer:

a_sh-v [17]3 years ago

6 0

the algebraic expression would be;

x - 6 = x

hope it helped :D

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4 people can dig a hole in 3 hours. How long does it take 9 people.

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Answer: 1 hour 20 minutes

<u>Step-by-step explanation:</u>

Let's figure out how long it would take 1 person to dig the hole and then divide that number by 9 (since they are sharing the workload).

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Find the area of the region that lies inside the first curve and outside the second curve. r = 6 − 6 sin θ, r = 6

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Each curve completes one loop over the interval $0\le t\le2\pi$ . Find the intersections of the curves within this interval.

$6-6\sin\theta=6\implies 1-\sin\theta=1\implies \sin\theta=0\implies \theta=0,\theta=\pi$

The region of interest has an area given by the double integral

$\displaystyle\int_\pi^{2\pi}\int_6^{6-6\sin\theta}r\,\mathrm dr\,\mathrm d\theta$

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3 years ago

9x - 7x2 +4x2 - x + 4x3 - 3x2

Anna35 [415]

Answer:

The answer to your question is: 4x³ - 6x² + 8x

Step-by-step explanation:

see the picture

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