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2 years ago

I was doing my khan and i got stuck 6=2(y+2)

Mathematics

1 answer:

Anna [14]2 years ago

3 0

Answer:

$y=1$

Step-by-step explanation:

Given:

$6=2(y+2)$

Distribute the parenthesis

$6=2y+4$

Subtract both sides by 4

$2=2y$

Divide both sides by 2 to get $y$ alone

$1=y$

Hope this is helpful

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Solve for p.

Vinil7 [7]

Answer:

p = -2

Step-by-step explanation:

5p - 10 = + 4(1 + 3p)

first get rid of the bracquetes:

5p - 10 = + 4*1 + 4*3p

5p - 10 = + 4 + 12p

subtract left and right of = sign by 5p

5p -5p - 10 = + 4 + 12p -5p

0 - 10 = + 4 + (12p -5p)

subtract left and right of = sign by 4

-10 -4 = 4 -4 + ( 7p )

re arrange

7p + 0 = -14

divide left and right of = sign by 7

7/7 p = -14/7

p = -2

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3 years ago

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Use cylindrical coordinates. Find the volume of the solid that lies within both the cylinder x2 + y2 = 25 and the sphere x2 + y2

Inessa05 [86]

Answer:

Step-by-step explanation:

we are asked to find the volume of solid that lies within both the cylinder

$x^2 + y^2 = 25$

and

the sphere $x^2 + y^2 + z^2 = 49.$

Conversion from rectangular to cylindrical is

$x=rcost\\y = rsint\\z=z$

|J| =r

In cylindrical coordinates the volume is bounded by the cylinder r=5 and

$r^2+z^2 =49$

Hence we can write volume as

$\int \int \int dxdydz\\=\\\int _0^5 \int_0^{2\pi} \int_{-\sqrt{49-r^2} } ^{\sqrt{49-r^2} rdzdtdr\\= 2\pi \int _0^5 (2\sqrt{49-r^2} rdr\\=4\pi (-(49-r^2) (2/3)\\= \frac{4\pi}{3} (343-48\sqrt{6} )$

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2 years ago

X= 2 y-4<br> 7 x + 5y = -66

Mars2501 [29]

Answer:

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Step-by-step explanation:

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2 years ago

A company offers a flood insurance policy that costs a homeowner $200 per year, and the company will make a payout of $100,000 t

wel

Answer:

σX = 3161

Step-by-step explanation:

The standard deviation is the square root of the multiplication of each probability multiplied by the squared difference between the values and the mean.

In this question:

$\sigma X = \sqrt{0.999*(200-100)^2 + 0.001*(-99800-100)^2} = 3160.7$

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2 years ago

Add (-x + 4) + (3x + 2).

VashaNatasha [74]

Answer:

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Step-by-step explanation:

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