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3 years ago

Daniel is making a cube using blocks. The cube is solid and has no holes.

Mathematics

2 answers:

astraxan [27]3 years ago

6 0

D because if you look at 81x9 it will get you too 729

cestrela7 [59]3 years ago

4 0

Its d 729 because on 1 layer theres are 81 cubes and there are 9 layers so 81 times 9 equals 729

Hope this helps

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THis is due in 28 minutes help ASAP

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Mars has m moons. The number of moons of Pluto is one more than twice the number of moons of Mars. The number of moons of Neptun

tigry1 [53]

Answer:

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2 years ago

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7nadin3 [17]

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3 years ago

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The difference of two perfect cubes is 386. If the cube root of the smaller of the two numbers is 7, then the cube root of the l

choli [55]

Answer:

Step-by-step explanation:

Let the two perfect cubes be x and y where x > y.

According to the given conditions:

${x}^{3} - {y}^{3} = 386...(1) \\ y = 7...(2) \\ plug \: y = 7 \: in \: equation \: (1) \\ {x}^{3} - {7}^{3} = 386 \\ {x}^{3} - 343 = 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 729 \\ x = \sqrt[3]{729} \\ x = 9$

Thus the cube root of the larger number is 9.

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3 years ago