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3 years ago

The cube shown has side length 0.7 metres.

Mathematics

2 answers:

777dan777 [17]3 years ago

5 0

Answer:

29400cm^2

Step-by-step explanation:

The length and the width are equal so both the width and length is 0.7m

Convert 0.7m to centimeters (0.7x100)=70cm

since a cube has 6 sides so we multiply 70x70 to get 4900cm^2 and then multiply by 6 to get 29400cm^2

Vinil7 [7]3 years ago

4 0

Answer:

294cm^2

Step-by-step explanation:

0.7*0.7=0.49

0.49*6=2.94m

294cm^2

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3 0

3 years ago

Please help with this

Nookie1986 [14]

Answer:You better delete this because brainly moderators will get mad for seeing PDFS like this.

Step-by-step explanation:Happens to me all the time :/

3 0

3 years ago

For the following system, use the second equation to make a substitution for y in the first equation. 3x + y = 1 y + 4 = 5x What

Debora [2.8K]

Answer:

The answer is A.

Step-by-step explanation:

So we have the two equations:

$3x+y=1\\y+4=5x$

To make a substitution of the second equation into the first equation, we need to isolate the y variable in the second equation. Thus:

$y+4=5x\\y=5x-4$

Now, we can substitute this into the first equation. Therefore:

$3x+y=1\\3x+(5x-4)=1\\3x+5x-4=1$

7 0

3 years ago

8 × 10 + 6 − 2 7 + 5 × 8 − 4

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

(8)(10)+6−27+(5)(8)−4

=80+6−27+(5)(8)−4

=86−27+(5)(8)−4

=59+(5)(8)−4

=59+40−4

=99−4

=95

hope this helped :)

6 0

3 years ago

Read 2 more answers

A piece of toast came out of the toaster very overcooked.

Nikitich [7]

Answer:

It is a chemical change ⇒ 1st answer

Step-by-step explanation:

* Lets explain the statements to solve the problem

- A chemical change occurs when a new substance is formed through

a chemical reaction

- Ex: cooking an egg

- Change of reaction is the rate of reaction it can be decreases or

increasing

- A phase change is a change from one state to another without a

change in chemical composition

- Ex: Condensation: the substance changes from a gas to a liquid

- A physical change, such as a state change or dissolving, but does

not create a new substance

- Ex: Breaking a glass

* Lets solve the problem

- A piece of toast came out of the toaster very overcooked.

∵ It is like the cooking an egg

∴ It is a chemical change

7 0

3 years ago