√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number.
13 - √- 81 = 13 - 9i
Answer:
ok what is it
Explanation:
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Answer:
A monomial can also be a variable, like “m” or “b”. It can also be a combination of these, like 98b or 78xyz. It cannot have a fractional or negative exponent. These are not monomials: 45x+3, 10 - 2a, or 67a - 19b + c.
Step-by-step explanation:
hope it helps......
Answer:
x = √7km
Step-by-step explanation:
Answer: 8
Step-by-step explanation:
8-6 = 2 which is greater
anything above 7 is correct
