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loris [4]
3 years ago
5

Pleas help me I really need it

Mathematics
2 answers:
RoseWind [281]3 years ago
5 0
Hello! I hope this helps you!

If you are to simplify the expression, you’d be getting the answer of:

8x-2
Elza [17]3 years ago
3 0

before distributing the negative:

(7x2 + 3x) - (8x2 - 5x)

after distributing the negative:

7x2 + 3x - 8x2 + 5x

now add like terms:

7x2 + 3x - 8x2 + 5x

-x2 + 8x

or

8x - x2

<em>-- let me know if you have any questions regarding this. </em>

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A block of ice weighs 12 tonne.
Ivan

Answer:

81 cm is 0.81 metre

12 tonne is 12000 kg

Volume of a cube is a^3

V=0.531441

D=M/V

=12000/0.531441

Density is 22580.11708 kg per m cube

Step-by-step explanation:

4 0
3 years ago
Ow many cans of paint are needed to cover an area of 2,200 square units if one can of paint covers an area of 400 square units?
salantis [7]
The number of cans needed to paint an area covering 2,200 sq. units will be given by:
number of cans=[area required to be painted]/[area that 1 can of paint can cover]
=2200/400
=5.5
Therefore we conclude that we will need 5.5 cans of paint
6 0
3 years ago
5 times p squared times q+ 10q
Basile [38]

Answer:

5*p^2*q+10q = 5p^2*q + 10q

Step-by-step explanation:

5 * p  squared * q + 10q = 5p^2*q+10q

5 0
3 years ago
PLZZ HELP I AM IN NEED WILL MARK BRAINLIEST!
Alexxandr [17]

Answer:

A: {(7, 12), (1, -5), (3, -10), (2, -5)}

Step-by-step explanation:

A relation should not have any repeating x values (or domains) in the group of coordinates.

B has 1 as all it's domains. B is not a function.

C lists 0 twice as it's domain. C is not a function

D lists 2 twice as it's domain. D is not a function

A is the best answer because it does not repeat any domains in the coordinates. A is a function.

6 0
4 years ago
If you subtract 14 from twice a number, the result is 6. What is the number?
julia-pushkina [17]

The equation for this statement:

2x – 14 = 6

=> 2x = 6 + 14

=> 2x = 20

=> x = 20/2

=> x = 10

7 0
3 years ago
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