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faltersainse [42]

2 years ago

10

Jethro wants a swimming pool in his backyard, so he digs a rectangular hole with dimensions 40 feet long, 20 feet wide, and 5 fe

et deep. How many cubic feet of water will the pool hold?

1 answer:

KiRa [710]2 years ago

8 0

4000 feet.
Solve by multiplying 40 20 and 5.

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Please help meeeee it’s actually super easy

rewona [7]

The area for that shape should be 28 because 20+8=28! Hope this helps.

4 0

2 years ago

In an upcoming race, the top 3 finishers will be recognized with the same award. Ryan is one of 12 people entered in the race.

BARSIC [14]

Since top 3 racers recognized with the same award, answer is 3/12 or 1/4 or .25

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2 years ago

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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:

$\sin^2t=\dfrac{1-\cos2t}2$
$\implies\displaystyle\frac{9\pi}2\int_0^\pi(1-\cos4x)\,\mathrm dx$
$=\displaystyle\frac{9\pi}2\left(x-\frac14\sin4x\right)\bigg|_{x=0}^{x=\pi}$
$=\dfrac{9\pi^2}2$

8 0

3 years ago

3+11x9-9x11 what is the answer

Rom4ik [11]

Your answer would be 3

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2 years ago

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Whas does 16g+3<-17+15g equal

ipn [44]

Answer:

g∠-20

Step-by-step explanation:

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2 years ago