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elixir [45]
3 years ago
15

If a block of copper is 5 cm by 10 cm by 3 cm and has a mass of 1335 grams, what is the density of copper?

Mathematics
2 answers:
dedylja [7]3 years ago
7 0

Answer:

the density of copper is 90.03g/cm³

Step-by-step explanation:

This problem bothers on the density of a substance, this case for a copper material

Given data

Mass of copper m = 1355g

Volume of copper block v= l*b*h

10*5*3=150cm³

We know that the density

ρ= mass/volume

ρ= 1355/150

ρ= 90.03g/cm²

The density of a substance is defined as the mass of the substance per unit volume

stepan [7]3 years ago
4 0

Answer:

The answer is 8.9 gm/cm cubed

Step-by-step explanation:

Just did it on algebra nation

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Help me please I'm not sure if im right​
leonid [27]

Answer:

291 cm³

Does the answer help you?

7 0
2 years ago
Which of these countries has the greatest population density? Which has the least?
Marta_Voda [28]

Answer:

According to research,

Greatest population Density ;

Monaco

Monaco led the ranking for countries with the highest population density in 2019, with 26,150.3 residents per square kilometer.

Least Population Density

Mongolia

Least Densely Populated Country in the World

For 2015, the population density of Mongolia was 1.914 people per square kilometer.

Step-by-step explanation:

8 0
2 years ago
Select all of the factors of x3 + 5x2 + 2x – 8.
gladu [14]

The factors of this polynomial would be (x + 4)(x + 2)(x - 1).


To find these, you first have to start with long division to find the first factor. If you use x + 4 it would look like this.


\frac{x^{3} + 5x^{2} + 2x - 8}{x + 4} = x^{2} + x - 2


Now we are left with only x^{2} + x - 2. We can factor this by looking for numbers that multiply to the last number and add to the middle number. 2 and -2 multiply to -2 and add to 1. Therefore, we'll use those in parenthesis in their place.


(x + 4)(x + 2)(x - 1)

5 0
2 years ago
Read 2 more answers
Ok so I wanna if my answer is right so
sergey [27]
Yes and you can say more x€ (-inf;15)
5 0
2 years ago
Didn’t mean to post this
guajiro [1.7K]

Answer:

lol that just means free points for me. ;)

5 0
2 years ago
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