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anyanavicka [17]
3 years ago
10

(10 POINTS AND BRAINLIEST FOR BEST)

Mathematics
2 answers:
Lana71 [14]3 years ago
8 0

Answer:

+4-7=-3 is the answer mate

Ira Lisetskai [31]3 years ago
6 0

Answer:

4 - 7 = -3

Step-by-step explanation:

A number sentence is a mathematical sentence, made up of numbers and signs. Therefore the number sentence to represent the model is: 4 - 7 = -3  because there are 4 positive charges and 7 negative charges, which make a 3 negative net charge

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Answer:

Residual = 11.462

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Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
. Suppose you plan to make a box that will hold exactly 40 one-inch cubes. Give the dimensions (ex: 1in x 1in x 40in) of 3 possi
stiks02 [169]

Answer:

The dimensions of the three possible boxes are;

Box 1:  2 inches length by 4 inches width by 5 inches height

Box 2:  2 inches length by 2 inches width by 10 inches height

Box 3:  8 inches length by 1 inch width by 5 inches height

Step-by-step explanation:

The dimensions of the required box = 40 in³

Therefore, a box that will hold all the cubes will have a dimension given as follows;

Length, l × Width, w × Height, h = 40 in.³

We therefore, look for possible dimensions of l, w, h, however to make is faster, we note that l × w = base area, BA, hence we look for the factors 40 thus;

BA × h        ≡  l × w × h

8  × 5 = 40 ≡ 2 × 4 × 5 = 40

4 × 10 = 40 ≡ 2 × 2 × 10 = 40

8 × 5 = 40 ≡ 8 × 1 × 5 = 40

Hence we have our three possible boxes as follows;

Box 1: Length = 2 inches, width = 4 inches and height = 5 inches

Box 2: Length = 2 inches, width = 2 inches and height = 10 inches

Box 3: Length = 8 inches, width = 1 inches and height = 5 inches.

4 0
2 years ago
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