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3 years ago

...........................................................

Mathematics

2 answers:

rodikova [14]3 years ago

4 0

hahahhahah

thanks for the points btw

klasskru [66]3 years ago

3 0

Answer:

lollllll

Step-by-step explanation:

have a nice day!

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: Out of 100 students, 50 have a laptop computer and 30 have a desktop, and 15 have both a laptop and desktop computer. What is

Nadya [2.5K]

Answer:

30/100 I think but I think I am right.

6 0

4 years ago

If the original quantity is 8 and the new quantity is ,2 what is the percent decrease?

azamat

Answer: 75%

Step-by-step explanation:

75% of 8 is 6.

8 was decreased by 6 to get 2.

8 was decreased by 75% of its initial value to get 2.

Hope this helped!

3 0

3 years ago

Read 2 more answers

(6•11)2 •2-4(-2+14)2-12 simplest terms

Ksju [112]

Answer:

\frac{13+\left(-3\right)^2+4\left(-3\right)+1-\left[-10-\left(-6\right)\right]}{\left[4+5\right]\div \left[4^2\:−\:3^2\left(4−3\right)−8\right]+12}

Step-by-step explanation:

\frac{13+\left(-3\right)^2+4\left(-3\right)+1-\left(-10-\left(-6\right)\right)}{\frac{4+5}{\left(4^2-3^2\left(4-3\right)-8\right)+12}}

8 0

4 years ago

what is the ratio for the volumes of two similar spheres given that the ratio of their radii is 4:7 A.)343:64 B.)49:16 C.)16:49

quester [9]

Answer:

Volume of the similar sphere be 64 :343 .

Option (D) is correct.

Step-by-step explanation:

Formula

$Volume\ of\ a sphere = \frac{4}{3}\pi r^{3}$

As given

The volumes of two similar spheres given that the ratio of their radii is 4:7 .

Let us assume that the x be the scalar multiple of the radi .

Radius of first sphere = 4x

Radius of second sphere = 7x

Putting the values in the formula

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 4x\times 4x\times 4x$

$Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 64x^{3}$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 7x\times 7x\times 7x$

$Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 343x^{3}$

Thus

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{\frac{4\pi\times 64x^{3}}{3}}{\frac{4\pi\times 343x^{3}}{3}}$

$\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{64}{343}$

Therefore the ratio of the volume of the similar sphere be 64 :343 .

Option (D) is correct .

5 0

3 years ago

Read 2 more answers

What is the sum of the interior angles of the polygon shown below

Ludmilka [50]

Answer:

540

Step-by-step explanation:

If you have five sides on a polygon, all the angles will add up to 540°

8 0

3 years ago