Answer:
{x | x R, x ≤ 7 5/6 }
Step-by-step explanation:
we have

Convert mixed number to an improper fraction first


substitute

Multiply by 6 both sides to remove the fractions

Adds 38 both sides


Divide by 6 both sides

convert to mixed number

substitute

therefore
{x | x R, x ≤ 7 5/6 }
The equations of both the sister are the same.
<h2>Expression
</h2>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations that are formed according to rules which are dependent on the context.
<h2>Given to us</h2>
Gabriel Equation:
,
Gabriel's Sister Equation:
,
<h3>Gabriel's Sister Equation</h3>
On further solving the equation we get,

As we can see the equation transformed to Gabriel's Equation of total cost.
Therefore, both the sisters are correct as the equations of both the sister are the same.
Learn more about Expression:
brainly.com/question/13947055
Answer:
-303.11 -175
Step-by-step explanation:
The jet has a speed of magnitude 350 miles/hour and travelling in a direction of 210°. Hence the jet can be represented with |r| = 350, θ = 210°.
The component form of the vector has both the x component (horizontal component) and the y component (vertical component) Therefore:
The horizontal component = 
The vertical component = 
Answer:
When an electron moves to a higher energy level, it absorbs energy. Since the electron in the lower energy level has lower energy, so to move into a higher energy level it would require more energy hence it would absorb energy to equalize the higher energy
Answer:
x = π/2 + nπ or x = (2/3 π + 2nπ) or x = (4/3 π + 2nπ)
Step-by-step explanation:
1 + cosx + cos2x=0
1+cosx+(2cos²x -1) = cosx + 2cos²x = cosx (1 + 2cosx) = 0
cosx = 0
x = 90° (π/2) or (90+180) or (90+180x2) .... i.e π/2 + nπ
or 1 + 2cosx = 0
cosx = -1/2
x = 120° or 240° (2/3 π or 4/3 π) or (120 + 360 : 2/3 π + 2π) (120 + 2 * 360)
.... i.e. (2/3 π + 2nπ)
or (240 + 360 : 4/3 π + 2π) (240 + 2 * 360) .... i.e. (4/3 π + 2nπ)