When i ask my calculator for a decimal value of √2, it displays 1.414213562. what is the meaning of this number? to check whether this square root is correct, what needs to be done? can the square root of 2 be expressed as a ratio of whole numbers such as 17/12

A(t)=728(1+0.04)^t how much money did aditya originally invest

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.