"plied"
"Fivefold" is a compound word derived from combining the word "five" with the word "fold." It means something that is multiplied or increased by a factor of five. It is not a root word for "likelihood."
√8 multiplied by 3√2 = 3.563594873 (when rounded)
If you mean, the square root of 4 multiplied by the square root of 5, that is 2x5=10 If you mean, the square root of ( 4x25), that is the square root of 100 which is 10
15.556 to three decimal places
20.7846097
20.1246118
11.82
100
40
3.8729x5.916=22.912
14 (sqrt6)
15.46482452