Question

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Instruction
Finding the Square Root of a Perfect Square
Which statements about square roots are true? Check all that apply.
The square root of a positive number cannot be negative.
All positive numbers have two square roots.
0 18 = 9 because 9(2) = 18.
49 = 7 because 7(7) = 49.
25 = 5 because 52= 25.

Answer 1

Explanation:

The square root of a positive number cannot be negative. False. There are two square roots, one positive and one negative.

All positive numbers have two square roots. True. See above.

0 18 = 9 because 9(2) = 18. Unable to answer; "0 81" is invalid. Note that

√81 = ±9

49 = 7 because 7(7) = 49. Invalid statement. 49 never equals 7. Perhaps you meant √49 = ±7

25 = 5 because 52= 25. Invalid statement. Perhaps you meant √25 = ±5.

Please, before you do any more square root problems, learn how to type the " √ " symbol or equivalent, such as "sqrt( "