What is sqrt(49)?

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Study for the 8th Grade FAST Mathematics Pre-Algebra Test. Enhance your skills with interactive flashcards and multiple choice questions, each containing hints and explanations to boost your comprehension and readiness for the exam. Get ready to ace your test!

Multiple Choice

What is sqrt(49)?

Explanation:
Understanding square roots: a square root is a number that, when multiplied by itself, gives the original number. For 49, you ask which number times itself equals 49. Since 7 × 7 = 49, the square root is 7. The other numbers don’t work because their squares aren’t 49 (14 × 14 = 196, 49 × 49 = 2401, 3 × 3 = 9). By convention, the square root refers to the nonnegative result, so the principal root is 7.

Understanding square roots: a square root is a number that, when multiplied by itself, gives the original number. For 49, you ask which number times itself equals 49. Since 7 × 7 = 49, the square root is 7. The other numbers don’t work because their squares aren’t 49 (14 × 14 = 196, 49 × 49 = 2401, 3 × 3 = 9). By convention, the square root refers to the nonnegative result, so the principal root is 7.

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