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2 years ago

Use the result (a+b)²=a²+2ab+b² to find the value of 49²+98+1

Mathematics

1 answer:

Leto [7]2 years ago

5 0

Answer:

2500

Step-by-step explanation:

a² + 2ab + b²

49² + 98 + 1

Comparing terms

a²= 49²

a= 49

2ab = 98

2× 49 × b = 98

98b = 98

b= 98/98

b = 1

b²= 1

b=√1

b= 1

a=49 and b= 1

Hence (a+b)²= (49+1)²

50²= 2500

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vivado [14]

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Step-by-step explanation:

Step 1 :

Total number of teenagers in United States = 21 million

Average text messages sent per month = 800

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Step 2 :

The number of text messages in a month can be computed by taking the product of the total number of teenagers and average messages sent per month

Therefore

Number of text messages that is sent in a month = 21 million × 800

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Step 3 :

Answer :

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3 years ago

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insens350 [35]

Answer:

Step-by-step explanation:

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3 years ago

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Dima020 [189]

Answer:

See below:

Step-by-step explanation:

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3 years ago

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kolezko [41]

Answer:

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4 years ago

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ddd [48]

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