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Anna11 [10]
3 years ago
5

Find the square root of 256 an cube root of 729​

Mathematics
1 answer:
bekas [8.4K]3 years ago
6 0

Answer:

i)16

ii)9

Step-by-step explanation:

\sqrt{256} \\=\sqrt{16*16} \\=16\\\\ii)\ \sqrt[3]{729}\\ =\sqrt[3]{9*9*9} \\=9

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Find the HCF of 126 and 420
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Answer:

42

Step-by-step explanation:

Find the prime factorization of 126

126 = 2 × 3 × 3 × 7

Find the prime factorization of 420

420 = 2 × 2 × 3 × 5 × 7

To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 3 × 7

GCF = 42

3 0
2 years ago
FIND THE SURFACE AREA
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7 digit number 8,920,000 when rounded to nearest 10 thousand. Digits in tens & hundreds are the least & same value. Valu
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First we can conclude that the number is:
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Then tens and hundreds are same and the least value. That value is zero.
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24 - ( 8 + 9 + 2 + 4 + 0 + 0 ) = 24 - 23 = 1
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