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2 years ago

Combining like terms with negative coefficient -3x-6+(-1)

Mathematics

1 answer:

Andreyy892 years ago

5 0

Answer:

-3x-7

Step-by-step explanation:

So firs you would change the sign of +(-1)

-3x-6-1

-3x-7

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A closed box has a square base with side length feet and height feet given that the volume of the box is 34 ft.³ express the sur

Deffense [45]

Answer:

$\dfrac{2s^3+136}{s}$

Step-by-step explanation:

Let the side length of the square base =s feet

Let the height of the box = h

Given that the volume of the box = $34$ ft^3$

Volume of the box = $s^2h$

Then:

$s^2h=34$ ft^3\\$Divide both sides by s^2\\h=\dfrac{34}{s^2}$

Surface Area of a Rectangular Prism =2(lb+bh+lh)

Since we have a square base, l=b=s feet

Therefore:

Surface Area of our closed box $= 2(s^2+sh+sh)$

$S$urface Area= 2s^2+4sh\\Recall: h=\dfrac{34}{s^2}\\$Surface Area= 2s^2+4s\left(\dfrac{34}{s^2}\right)\\=2s^2+\dfrac{136}{s}\\$Surface Area in terms of length only=\dfrac{2s^3+136}{s}$

7 0

2 years ago

I need help with this!!!

7nadin3 [17]

Answer:

Step-by-step explanation:

cancel out 5 by multiplying its by 5, what you do to one side you do to the other. so you also multiply 12 by 5. and you should get 60

3 0

2 years ago

Please help me!!!!!!!

Paha777 [63]

RSP is the semicircle

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2 years ago

14+x=y<br><br>what does x equal

AfilCa [17]

Answer:

Step-by-step explanation:

14 + x = y

x = y - 14

7 0

2 years ago

Find the volume of the right prism with a cylindrical hole. Round to the nearest tenth.

sergey [27]

Answer:

11.2

Step-by-step explanation:

First, you get the volume of the right prism by multiplying the length times the width times the height, which is 2.5 cubed. Then we subtract the volume of the cylindrical hole. We do this by doing pi times the radius squared times the height, which is pi times 0.75 squared times the height. This will yield 11.2 cubic millimeters.

7 0

2 years ago