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Ostrovityanka [42]
3 years ago
14

What is the midpoint of AB?

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
4 0

Answer:

(-4,-0.5)

Step-by-step explanation:

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Poease help! Thank you
DIA [1.3K]

Answer:

28 and 12t

Step-by-step explanation:

4 x 7

4 x 3t

6 0
3 years ago
Read 2 more answers
Find the volume V obtained by rotating the region bounded by the curves about the given axis.
BartSMP [9]

Using the disk method, the volume is given by the integral

\displaystyle \pi \int_{\pi/2}^\pi (9\sin(x))^2\,\mathrm dx = 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx

That is, each disk has a radius of <em>y</em> = 9 sin(<em>x</em>) and hence area = <em>π</em> (9 sin(<em>x</em>))². Add up infinitely many such disks by integrating. Then the volume is

\displaystyle 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx = \frac{81\pi}2 \int_{\pi/2}^\pi (1-\cos(2x))\,\mathrm dx \\\\ =\frac{81\pi}2 \left(x-\frac{\sin(2x)}2\right)\bigg|_{\pi/2}^\pi \\\\ = \frac{81\pi}2 \left( \left(\pi-\frac{\sin(2\pi)}2\right) - \left(\frac\pi2 - \frac{\sin(\pi)}2\right) \right) \\\\ = \boxed{\frac{81\pi^2}4}

8 0
3 years ago
RE
Zarrin [17]

Answer:

easy A

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
The base and height of a triangle with base 12 in and the height 6 in are both tripled
Marysya12 [62]

Answer:

Base=36

Height=18

Step-by-step explanation:

To work this out you would first multiply 12 by 3, which gives you 36. Then you would multiply 6 by 3, which gives you 18.

1) Multiply 12 by 3.

12*3=36

2) Multiply 6 by 3.

6*3=18

3) Base=36

Height=18

4 0
3 years ago
The booster club recently bought new baseball equipment. They spent $18 per glove and $24 dollars per catching mask and spent a
hammer [34]

Answer:

given below

Step-by-step explanation:

let the number of gloves be y

then number of masks is y + 8

therefore a equation can be formed:

18(y) + 24(y + 8) = $612

18y+24y+192=612

42y=420

y=$10

each glove cost $10

therefore each masks cost $18

7 0
3 years ago
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