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strojnjashka [21]
2 years ago
7

Answer this question with the method explained ​

Mathematics
1 answer:
cricket20 [7]2 years ago
8 0

Answer:

  • 5.96

Step-by-step explanation:

We can show that 3.83 and 1.95² are close numbers.

1) Recall the method of finding the square of the numbers ending with 5:

  • (Multiply the number before 5 to subsequent number add 25 as last digits

Apply this method to get:

  • 1.95² = (195/100)² = (19*20*100+25)/10000 = 38025/10000 = 3.8025 ≈ 3.8

2) Use another method, square of the difference:

  • 1.95² = (2 - 0.05)² = 2² - 2*2*0.05 + 0.0025 = 4 - 0.2 + 0.025 = 3.8025 ≈ 3.8

If we cancel 3.83 and 1.95², we'll end up with 5.96.

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