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Earn +20 ptsQ: What is 8 plus 21 square?
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What is negative 8 plus negative 21?
-8+(-21) = -29
What is -6 plus -7 plus -8 equal?
-6 + -7 + -8 = -21
What plus 13 equals -8?
5
What is the square root of 17 plus 8?
17 plus 8 is 25, and the square root of 25 is 5. Alternatively, the square root of 17 is about 4.123; adding 8 to that gives about 12.123.
What is the exact value for the expression the square root of 189 minus the square root of 21 plus the square root of 84 Simplify if possible.?
21
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