Solve 5v2+25=115, where v is a real number

Question

Mathematics

Ryleigh Hamilton

11 October, 03:04

Solve 5v2+25=115, where v is a real number

+3

Answers (2)

Know the Answer?

Spence · Answer 1

5v^2 + 25 = 115

5v^2 = 115 - 25

5v^2 = 90

v^2 = 90/5

v^2 = 18 ... take the square root of both sides eliminating the ^2

v = (+-) sqrt 18

v = 4.24 or v = - 4.24

Wade · Answer 2

Can be + or -, as V will be squared. When any - ve number is squared, it will become positive.