Muft Shiksha
Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
Class 9MathematicsNumber SystemsExponentsMediumLevel 6
0 reads0 ratings0 helpful

If (d^2=529) then what is the positive value of (d)?

Advertisement

Answer and explanation

Correct answer: 23

Since the positive value of (d) is required, take the positive square root: (d=\sqrt{529}=23). Checking gives (23^2=529). Although (-23) also satisfies the equation, it is not positive. In an exam, choose the positive root when the question asks for the positive value.

Related tags

Number SystemsExponentsSquare RootsPerfect SquaresQuadratic Equations

Frequently asked questions

What is the correct answer to this question?

23

Why is this the correct answer?

Since the positive value of (d) is required, take the positive square root: (d=\sqrt{529}=23). Checking gives (23^2=529). Although (-23) also satisfies the equation, it is not positive. In an exam, choose the positive root when the question asks for the positive value.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

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)?
Advertisement