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BigorU [14]
2 years ago
11

Simplify 7x²-x² how to simplify this maths question

Mathematics
1 answer:
kondaur [170]2 years ago
6 0

Hi student, let me help you out! :)

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

We are asked to simplify the expression \large\pmb{7x^2-x^2}.

\triangle~\fbox{\bf{KEY:}}

  • Combine like terms! :)

That's exactly what we need to do - combine like terms.

So, we subtract:

\star~\large\pmb{7x^2-x^2}

Which gives us:

\star~\large\pmb{6x^2}

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

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The rock hard company is going to transport truckloads of stones to a highway project. It will cost $4200 to rent trucks, and it
Darya [45]

Answer:

c =4200+275s

Step-by-step explanation:

C is the total cost

4200 is how much to rent the trucks

275 is the price for each ton

s is how many tons of stone in being transported

4 0
4 years ago
9 boxes of cookies cost $38.07. How many boxes did Gina buy if she spent $16.927
trapecia [35]
She got 4 boxes because 38.07/9 is 4.23 and 16.927/4.23 is 4 so your answer will be 4
4 0
2 years ago
A tile of a square is of side 30 cm. How many such tiles would be required to cover a floor of a square room of side 6m?
Fiesta28 [93]

Answer:

4 tiles

Step-by-step explanation:

Area of a square tile:

A = s²

A = (30)²

A = 900 cm

900 cm = 9 m

Area of the square room:

A = s²

A = (6)²

A = 36 m

36 ÷ 9 = 4

4 0
3 years ago
Mia found the area of a polygon The area is 32 square cm.
solniwko [45]

Answer:

Only the isosceles trapezoid has an area of 32 cm².

Step-by-step explanation:

Let's calculate the area of each polygon.

For the two triangles we have:

A_{t} = \frac{bh}{2} = \frac{2 cm*4 cm}{2} = 4 cm^{2}

This polygon does not have an area of 32 cm².

For the rectangle we have:

A_{r} = bh = 6 cm*4 cm = 24 cm^{2}

This polygon does not have an area of 32 cm².

For the rectangle trapezoid we have:

A_{rt} = A_{t} + A_{r} = (4 + 24) cm^{2} = 28 cm^{2}

So, this polygon does not have an area of 32 cm².

Finally, for the isosceles trapezoid:

A_{it} = A_{t}*2 + A_{r} = (4*2 + 24) cm^{2} = 32 cm^{2}

This polygon does have an area of 32 cm².

   

Therefore, only the isosceles trapezoid has an area of 32 cm².

I hope it helps you!                              

8 0
3 years ago
Which of these graphs represents a function?<br> A)<br> A<br> B)<br> B<br> C)<br> С <br> D)<br> D
Ivahew [28]
Do the vertical line test and draw a straight line.

Solution: C represents a function
3 0
3 years ago
Read 2 more answers
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