Estimation is never an effective way to get the answer. But it's always an effective way to determine whether the answer you calculated is reasonable, or from orbit by way of left field.
Internal angles sum: 180(sides-2) = 180
5x = 180 - (48 + 90 + 17)
x = 25/5
x = 5
answer: 5
proof:
(90 + 48) + (5(5)+17) = 180
Answer:
4/3 pi radius cubed
Step-by-step explanation:
4/3 pi x (8x8x8)
512 x 4/3 pi
2144.660585
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Define the numbers
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First the first odd integer be x.
1st odd = x
2nd odd = x + 2
3rd odd = x + 4
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Form the equation and solve for x
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5(x + 4) - 94 = x + 2
5x + 20 - 94 = x + 2
5x - 74 = x + 2
5x - x = 2 + 74
4x = 76
x = 19
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Find the 3 consecutive integers
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1st = x = 19
2nd = x + 2 = 19 + 2 = 21
3rd = x + 4 = 19 + 4 = 23
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Answer: The 3 consecutive odd numbers are 19, 21 and 23
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