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

which of the following is among the limitations imposed by the supreme court on affirmative action? group of answer choices race cannot be used as the sole crit

In this cartoon in favor of American intervention in the imperialism or against American imperialism

Simplity (34)-1 1/34 1/3-4 -34 33

(-20x)( 3xy-y/x^2 )( 3x/9x^2-3x )

The relationship between the type of diversification and overall firm performance a. takes on the shape of an inverted U so related diversification has the best

upon returning to the banquet table, what does macbeth see and how does he respond? how do the others respond?

Let f(x) = 1 / 2+3x and point P = (2 , 1/8) a.) Use the following definition of the slope of the tangent line at x = a to find the slope of the line tangent

Answer the following question in 3-4 complete sentences. Define the following terms: - relief - ground - etch

hi....................

the nurse receives a telephone call from a mother, who states that her 3-year-old child was found sitting on the kitchen floor with an empty bottle of liquid fu