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ra1l [238]
3 years ago
8

Isn’t it just 5? Why would it say check all that apply

Mathematics
2 answers:
Andreas93 [3]3 years ago
5 0

Answer:

A. 5

B. 25^{\frac{1}{2} }

D. -5

E. -25^{\frac{1}{2} }

Step-by-step explanation:

A number has a square root when a certain number can be multiplied by twice by itself to get the same number for the answer.

When you multiply 5 by 5, you get 25.

When you multiply 25^{\frac{1}{2} } by 25^{\frac{1}{2} }, you get 25. This is because 25^{\frac{1}{2} } can also be written as \sqrt{25}, which gives you 5, and when you multiply them together it produced a product of 25.

When you multiply -5 by -5, you also get 25 (this is because when a negative number is multiplied by another negative, the product is a positive).

When you multiply -25^{\frac{1}{2} } by -25^{\frac{1}{2} }, you also get 25. Similar as with answer "B," you will get the answer of -5, and multiplying these by itself will give you 25.

All the other numbers cannot be multiplied by itself to get the answer of 25.

LenKa [72]3 years ago
4 0

Answer: 25^\frac{1}{2}

Step-by-step explanation:

25 = 5*5 or -5 * -5

yes, that is correct. However, you forgot another property of roots. Roots are simply exponential fractions.

\sqrt[n]{x^m}=x^\frac{m}{n}

Therefore, \sqrt{25} can also be rewritten as: 25^\frac{1}{2}. Notice that it cannot be -25 because that would be a negative square root which will give us an imaginary number.

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