West Virginia has one of the highest divorce rates in the nation, with an annual rate of approximately 5 divorces per 1,000 people. †The Marital Counseling Center, Inc. (MCC) thinks that the high divorce rate in the state may require them to hire additional staff.
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525² - 475² = 50000
Given :
The expression 525² - 475²
To find :
The value of 525² – 475²
(a) 100
(b) 10000
(c) 50000
(d) 100000
Solution :
Step 1 of 2 :
Write down the given expression
The given expression is
525² - 475²
Step 2 of 2 :
Find the value of the expression
Use the formula a² - b² = ( a + b ) ( a - b )
Thus we get
\sf {525}^{2} - {475}^{2}525
2
−475
2
\sf = (525 + 475) \times (525 - 475)=(525+475)×(525−475)
\sf =1000 \times 50=1000×50
\sf = 50000=50000
Hence the correct option is (c) 50000
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