The square root of what. equals 27?

2008-07-22 4:16 pm
Please and thank you! Well now that im asking, here are two more. What squared equals 33.64? What cubed equals 42.875???

回答 (8)

2008-07-22 4:58 pm
✔ 最佳答案
1)
27^2
= 729

2)
±√33.64
= ±5.8

3)
³√42.875
= 3.5
2016-05-27 2:21 pm
square root of 27 is 3 * square root of 3 but 3 is also (square root of 3 * square root of 3) thus. 27 is 3 times square root of 3. That plus the 5 times you got there, then you have 8 times square root of 3.
2008-07-22 4:52 pm
Use a calculator. There isn't exact answer
2008-07-22 4:52 pm
Just do the opposite. If you need to find the sqrt of something, sq the answer.

27 ^ 2 = 729

Same with the others, you need squares so sqrt the numbers:

sqrt(33.64) = 5.8
sqrt(42.875) = 6.5479
2008-07-22 4:27 pm
Let √x=27
x=(27)^2 =729
square root of 729 is 27.

let x^2=33.64
x= √33.64 =5.8
5.8 squared is equal to 33.64

let x^3=42.875
x= (42.875)^(1/3)
x=cube root of 42.875 =3.5
3.5 x 3.5 x 3.5 =42.875
2008-07-22 4:23 pm
the square root of 729 equals 27
5.8 squared = 33.64
3.5 cubed = 42.875
2008-07-22 4:23 pm
1. 27: 27 x 27 = 729, so the square root of 129 =27
2. 33.64: squareroot of 33.64 = 5.8
3. 42.875: cube root of 42.875 = 3.5
2008-07-22 4:22 pm
729
3.5


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