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Reil [10]
3 years ago
5

How much wrappping paper do you need to cover a box that is 18 inches by 15 inches by 3 inches

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Answer:

Step-by-step explanation:

So to do this, you would find the surface area of a box. Since it is a rectangular prism, two sides will always have the same area and so there are 3 different areas. 18*15*2 = 540 and 18*3*2 = 108 and 3*15*2 = 90 and 90 + 108 + 540 = 738 inches

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Write the expression: the sum of the quantity h and 3 divided by 6.
gizmo_the_mogwai [7]
Answer is C because it’s asking for the sum of h and 3 which is then divided by 6
7 0
3 years ago
Simplify the given expression. (16x^2 + 15xy – 19y^2) – (3x^2 – 3xy)
ruslelena [56]

Answer:

-19 y^2 + 18 x y + 13 x^2

Step-by-step explanation:

Simplify the following:

16 x^2 + 15 x y - 19 y^2 - (3 x^2 - 3 x y)

Factor 3 x out of 3 x^2 - 3 x y:

16 x^2 + 15 x y - 19 y^2 - 3 x (x - y)

-3 x (x - y) = 3 x y - 3 x^2:

16 x^2 + 15 x y - 19 y^2 + 3 x y - 3 x^2

Grouping like terms, 16 x^2 + 15 x y - 19 y^2 - 3 x^2 + 3 x y = -19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2):

-19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2)

x y 15 + x y 3 = 18 x y:

-19 y^2 + 18 x y + (16 x^2 - 3 x^2)

16 x^2 - 3 x^2 = 13 x^2:

Answer:  -19 y^2 + 18 x y + 13 x^2

4 0
3 years ago
Read 2 more answers
681/4 i dont know this
ankoles [38]

Answer:

170.25

Step-by-step explanation:

It's a bit tricky to do not on plain paper, but here:

Just assume the long division symbol looks right

  _1_7_0_.25

4 ) 681

    -4

     2 8

     -2 8

          0  1

The remainder is "1", so you'll just have to write that as either a fraction or decimal, whatever is assigned.

Fraction: 170 1/4

Decimal: 170.25

7 0
3 years ago
Read 2 more answers
URGENT! If you get the correct answer, you will get a BRAINLIEST!
trasher [3.6K]

Answer:

x_{1} =  - 2 -  \sqrt{2}  \\ x_{2} = - 2 +  \sqrt{2}

5 0
3 years ago
The school Library was building a new one-room addition. the architects drawing shown below uses the scale 1/8 in = 1ft
EastWind [94]

Answer:

the total are is 459

Step-by-step explanation:

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2  1/4 divided by 1/8 = 18

so 18 x 25.5 = 459

hope this helps

8 0
3 years ago
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