liamhallowell28 liamhallowell28

03-02-2019
Mathematics

contestada

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Respuesta :

mathecoach mathecoach

03-02-2019

Answer:

√(7·x + 14) + √(7 - x)

7·x + 14 ≥ 0 --> x ≥ -2

7 - x ≥ 0 --> x ≤ 7

x ∈ [-2 ; 7]

Answer Link

Otras preguntas

*IT'S URGENT* <FEB and <BEF are_______.

Finish solving the system of equations. x - 5y = 6 x + 2y = -3 -3y = 3 What is the value of y? Substitute the value of y back into one of the original equations

Which molecular solid would have the lowest boiling point?

Do you think it is possible for blacks and whites to be separate and equal? Why or why not? If so, describe an example or situation where people can be separate

Solve 2x2 + 26 = 0 to identify the roots. 0 x 13 x 13 x=-in/13, x= int3 x=-226, x = 2126 x= -2;w/26, x = 2i»/26 RETRY Intro

Why were urban voters likely to support Franklin D. Roosevelt?

whoever gets it right gets brainliest

who wants free coins? just tell meh thx

Discuss the influence of the Vatican on the renaissance

how to write two million