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3 years ago

11

[(-6) + 5] ÷ [(-2) + 1]

2 answers:

Pepsi [2]3 years ago

8 0

Step-by-step explanation:

(-1)÷(-1)=1 Answer

hope you understood.....

Comment if not understood

Ira Lisetskai [31]3 years ago

3 0

Answer:

Answer is 1

Explanation:

(-6 + 5) / (-2 + 1)

-1 / -1

1

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A family needs to build fencing around their rectangular

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Step-by-step explanation:

If you are given a rectangular home and a square swimming pool, with dimensions of Pool = 2x & home = (2 +5x) & (3+10x) The total amount of fencing they need can be written as x + 10. If x = 5; The family needs 5 yards of fencing for their home. The family needs 10 yards of fencing for their pool.

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-5⁄2 a + 5 = 25 find a

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Answer:

The answer is 8

Step-by-step explanation:

-5/2 x 8= 20 and if you add 5 it is 25.

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The value of 4 in the 400 is ten times the value of 4 in the 40's place

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What is 5.16 divided by 0.6 (pls show work)

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2 years ago

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Find the dimensions of an open rectangular box with a square base that holds 2000 cubic cm and is constructed with the least bui

Vesnalui [34]

<h3>The dimensions of the given rectangular box are:</h3><h3>L = 15.874 cm , B = 15.874 cm , H = 7.8937 cm</h3>

Step-by-step explanation:

Let us assume that the dimension of the square base = S x S

Let us assume the height of the rectangular base = H

So, the total area of the open rectangular box

= Area of the base + 4 x ( Area of the adjacent faces)

= S x S + 4 ( S x H) = S² + 4 SH ..... (1)

Also, Area of the box = S x S x H = S²H

⇒ S²H = 2000

$\implies H = \frac{2000}{S^2}$

Substituting the value of H in (1), we get:

$A = S^2 + 4 SH = S^2 + 4 S(\frac{2000}{S^2}) = S^2 + (\frac{8000}{S})\\\implies A = S^2 + (\frac{8000}{S})$

Now, to minimize the area put :

$(\frac{dA}{dS} ) = 0 \implies 2S - \frac{8000}{S^2} = 0\\\implies S^3 = 4000\\\implies S = 15.874 \approx 16 cm$

Putting the value of S = 15.874 cm in the value of H , we get:

$\implies H = \frac{2000}{S^2} = \frac{2000}{(15.874)^2} = 7.8937 cm$

Hence, the dimensions of the given rectangular box are:

L = 15.874 cm

B = 15.874 cm

H = 7.8937 cm

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3 years ago