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2 years ago

A block of copper weighs 2160g and has a volume of 240cm cubed. what is the density of the copper?

Mathematics

1 answer:

mrs_skeptik [129]2 years ago

3 0

(Mass) 2160g (Divided by) / (Volume) 240cm (Equals) = 9 (Density)

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Please help asap 15 points

zubka84 [21]

the second option.

(3h+18)+(15h)=180

-18 . -18

3h . + 15h=162

18h=162

162/18 = 9

4 0

2 years ago

Read 2 more answers

Can you PLEASE help me!! And show me how you got the answer

Artist 52 [7]

In a triangle the midline joining the midpoints of two sides is parallel to the third side and half as long ⇒

2(3x + 2) = 2x + 20
6x + 4 = 2x + 20
6x - 2x = 20 - 4
4x = 16
x = 16/4
x = 4

midsegment = 3x + 2 = 3*4 + 2 = 12 + 2 = 14

8 0

3 years ago

The volume inside of a sphere is V=4πr33 where r is the radius of the sphere. Your group has been asked to rearrange the formula

Semmy [17]

Answer:

Therefore,

$r=\sqrt[3]{\frac{3V}{4\pi }}$

is the required r

Step-by-step explanation:

Given:

Volume of inside of the sphere is given as

$V=\frac{4}{3} \pi r^{3}$

where r is the radius of the sphere

To Find:

r =?

Solution:

We have

$V=\frac{4}{3} \pi r^{3}$ ......Given

$3\times V=4\pi r^{3} \\\\\therefore r^{3}=\frac{3V}{4\pi } \\\\\therefore r=\sqrt[3]{\frac{3V}{4\pi }} \textrm{which is the expression for r}$

Therefore,

$r=\sqrt[3]{\frac{3V}{4\pi }}$

is the required r

5 0

3 years ago

Find the value of x

gayaneshka [121]

Answer:

42°

Step-by-step explanation:

Since all the angles in the figure add up to 180°...

180 - 54 = 126

3x = 126°

x = 126 ÷ 3 = 42

4 0

2 years ago

GEOMETRY PLEASE HELP! THANK TOU SO MUCH :)

Anna71 [15]

Answer:

11. X=76

Step-by-step explanation:

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2 years ago