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The sum of three numbers in arithmetic progression is 12 and the sum of their cubes is 408the numbers are are?
Wiki User
∙ 14y ago
Trying a progression of 1 gives
x+(x+1)+(x+2)
3x+3=12
x=3
33+43+53 = 216 Nope.
Trying a progression of 2 gives
x+(x+2)+(x+4)
3x+6=12
x=2
23+43+63 = 287 Still nope.
Trying a progression of 3 gives
x+(x+3)+(x+6)=12
3x+9 = 12
3x=3
x=1
13+43+73= 1 + 64 + 343 = 408 ■
Wiki User
∙ 14y ago
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What is the arithmetic mean of the sum of the first five prime numbers and the sum of the cubes of the first three prime numbers?
The sum of the first five prime numbers is 28. The sum of the cubes of the first three prime numbers is 160. The average of 28 and 160 is 94.
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If they are standard cubes - with numbers from 1 to 6 - the probability is 0.
What is the arithmetic mean of the sum of the first five prime numbers and the sum of the cubes of the first three prime numbers?
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Perfect cubes.
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Cubes of squares or squares of cubes, like 1, 64 and 729.
If the difference of two positive numbers is 1 the product of these same two number is also 1 What is the difference of the cubes of these two numbers?
The difference of their cubes is 4.
How many natural numbers up to 5000 are perfect cubes?
The cube root of 5000 is approx 17.1 So the numbers 1 to 17 have cubes which are smaller than 5000 that is, there are 17 such numbers.
How do you figure out what is the number of the number cube?
You cannot. And not all number cubes have the numbers 1-6 on them. For example, a doubling cube for backgammon.You cannot. And not all number cubes have the numbers 1-6 on them. For example, a doubling cube for backgammon.You cannot. And not all number cubes have the numbers 1-6 on them. For example, a doubling cube for backgammon.You cannot. And not all number cubes have the numbers 1-6 on them. For example, a doubling cube for backgammon.
How many numbers are on a regular number cubes?
6
Definition of Sum or difference of two cubes?
That means that you calculate the cubes of two numbers, and then either add or subtract them.
What are two consecutive numbers that cubes differ by 169?
The numbers are 76 23 45
