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fiasKO [112]
3 years ago
10

Alejandro has 64-centimeter cubes. He uses them to build cubes with

Mathematics
1 answer:
Greeley [361]3 years ago
7 0

Answer:

7 different cubes

Step-by-step explanation:

Given: Alejandro has 64-centimeter cubes.

We know, cube is three dimentional solid object

Now, using 64 centimeter cubes to build cubes with  different side lengths.

∴ Finding the different possible 3 multiple(dimention) of 64 to know the number of cubes.

64= 64\times 1\times 1

64= 32\times 2\times 1\\64= 16\times 4\times 1\\64= 16\times 2\times 2\\64= 8\times 8\times 1\\64= 8\times 4\times 2\\64= 4\times 4\times 4

Hence, we can have 7 different cubes with 64 cm cubes.

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Alexxx [7]

Answer:

For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:

A = (1/2)*H*(X + Y)

with this we can complete the table.

a)

Here we know:

X = 7cm

Y = 11cm

H = 6cm

Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2

b)

Here we know:

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Y = 10 m

A = 126 m^2

Then:

126 m^2 = 0.5*H*(8m + 10m)

126 m^2 = H*9m

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c)

Here we know:

X = 5mm

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A = 72 mm^2

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72mm^2/4mm = 5mm + Y

18 mm = 5mm + Y

18mm - 5mm = Y

13 mm = Y

Then the parallel side 2 is 13 mm long.

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