3 years ago

If 4 workers take 900 hours to finish a project, how long will it take 8 workers to complete the same project?

1 answer:

6 0

Answer: 350

Step-by-step explanation: If you multiply the amount of workers by two, then you divide the amount of time by two, and vice versa. So, in other words, whatever number you multiply the workers by, divide the time by that same number. I hope this helps!

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Lelu [443]

Answer:

1,2,3

Step-by-step explanation:

1*8=8+4+12<28

2*8=16+4=20<28

3*8=24+4=28=28

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3 years ago

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Elina [12.6K]

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Y = 3 sin2x, y = 0, 0 ≤ x ≤ π; about the x−axis

Dominik [7]

I assume you're revolving the region with those bounds about the x-axis, and supposed to find the volume.

Via the disk method,

$\displaystyle\pi\int_0^\pi(3\sin2x)^2\,\mathrm dx=9\pi\int_0^\pi\sin^22x\,\mathrm dx$

Recall the half-angle identity for sine:

$\sin^2t=\dfrac{1-\cos2t}2$
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4 years ago

Are the following expressions equivalent 5(2z+3) and (5x2)+(z+3)

alexdok [17]

Answer: yes they are

Step-by-step explanation:

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