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4 years ago

Solve using suitable property -2/3 x 5/7 x -9/16 x 14/25

Mathematics

1 answer:

AVprozaik [17]4 years ago

8 0

Answer:

-10/21 X 3/20

-1/14

end

it is done by multiplying these fractions

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The main show tank has a radius of 70 feet and forms a quarter sphere what is the volume of the quarter sphere shaped tank?

Usimov [2.4K]

Answer:

$359333.33\textrm{ }ft^{3}$

Step-by-step explanation:

Given:

Radius of spherical tank, $r=70\textrm{ ft}$

Volume of a quarter of a sphere is given as:

$V=\frac{1}{3}\pi r^{3}$

Plug in 70 ft for $r$ , $\frac{22}{7}$ for $\pi$ and solve for the volume, $V$ . This gives,

$V=\frac{1}{3}\pi r^{3}\\\\ V=\frac{1}{3}\times \frac{22}{7}\times (70)^{3}\\\\ V=359333.33\textrm{ }ft^{3}$

Therefore, the volume of the quarter sphere shaped tank is $359333.33\textrm{ }ft^{3}$

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4 years ago

A book sold 34,600 copies in its first month of release. Suppose this represents 8.6% of the number of copies sold to date. How

NemiM [27]

Answer:402325.6

Step-by-step explanation:

let a be the total sales till date

8.6% of a=34600

8.6/100 x a=34600

0.086 x a=34600

divide both sides by 0.086

(0.086 x a)/0.086=34600/0.086

a=402325.6

8 0

4 years ago

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Need answer asap!<br> 3a + 4b = 1 - 2c/d<br> solve for c.

Aleonysh [2.5K]

Answer:

-3ad/2 -2bd = c

Step-by-step explanation:

3a + 4b = 1 - 2c/d

⇒3ad + 4bd = d - 2c [multiply d on both sides]

⇒3ad + 4bd - d = -2c [subtract d on both sides]

⇒3ad/(-2) + 4bd/(-2) = c [divide -2 on both sides]

⇒-3ad/2 -2bd = c

3 0

3 years ago

PLEASE HELP <br><br> Solve using linear combination 8x + y = 14 3x + y = 4

yKpoI14uk [10]

Answer:

The solution of the linear system is:

$x = 2$ and $y = -2$

Step-by-step explanation:

The following linear equation is solved as follows:

$8\cdot x + y = 14$

$3\cdot x + y = 4$

After some algebraic manipulation:

$y = 14 - 8\cdot x$

$y = 4 - 3\cdot x$

$14 - 8\cdot x = 4 - 3\cdot x$

$10 = 5\cdot x$

$5\cdot x = 10$

$x = 2$

And finally,

$y = 4 - 3\cdot (2)$

$y = -2$

The solution of the linear system is:

$x = 2$ and $y = -2$

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3 years ago

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What is the area of the rectangle

aliya0001 [1]

a^4+2a+8 because if you combine like terms that is what you get

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3 years ago

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