Answer:
In fact, they'll do that if only ONE of them is out of tune.
As long as there's a difference between the two frequencies,
they'll create beats.
Step-by-step explanation:
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21x - 15
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288in^3
formula for volume is l*w*h
substitute the variables for 12*2*12=288
Thus the answer is 288in^3
No, the two sets are not disjoint.
Set of triangular numbers to 50: 1, 3, 6, 10, 15, 21, 28, 36, 45
Set of square numbers to 50: 1, 4, 9, 16, 25, 36, 49
They have 1 and 36 in common, so they are not disjoint, or in other words, they have some of the same numbers.