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Class 9MathematicsNumber SystemsExponentsMedium
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What is the value of (7^2+5^2)?

Answer and explanation

Correct answer: 74

Evaluate the exponents first: \(7^2=49\) and \(5^2=25\). Therefore, \(7^2+5^2=49+25=74\). Option 64 may result from an incorrect evaluation of the squares. Exam tip: Find each square separately before adding.

Related tags

ExponentsSquaresOrder Of OperationsNumber SystemsArithmeticMathematicsClass 9 Mcq
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10 more MCQs
  1. 1If A={x:x is prime and 10<x<30}, which is its roster form?
  2. 2If 0.2020020002... has no fixed repetition, what type of number is it?
  3. 3If 0.3030030003... has no fixed repetition, what type of number is it?
  4. 4If (x=\sqrt{11}) then what is (x^2+5)?
  5. 5If (x=\sqrt{3}) then what is (x^2+x^2)?
  6. 6If (x=\sqrt{2}), what is (x^2)?
  7. 7What is the value of (2^3)?
  8. 8What is the value of (5^2)?
  9. 9What is the value of (10^2)?
  10. 10What is the value of (3^2)?
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