Solve for x. |4x - 5| > 7
2 answers:
Answer:
see explanation
Step-by-step explanation:
Inequalities of the type | x | > a have solutions in the form
x < - a OR x > a thus
4x - 5 < - 7 ( add 5 to both sides )
4x < - 2 ( divide both sides by 4 )
x < -
OR
4x - 5 > 7 ( add 5 to both sides )
4x > 12 ( divide both sides by 4 )
x > 3
Solution is x < - or x > 3
This can be expressed in interval notation as
(- ∞, - ) u (3, ∞ )
You might be interested in
Answer:
0ft and 60ft
Step-by-step explanation:
Given
The attached function
Required
Determine the valid values of the domain of the function
To do this, we simply consider the starting point and the end point of the trajectory on the x-axis (i.e. the horizontal distance).
From the attached graph, the horizontal distance starts from 0 and ends at 180.
This implies that the domain is:
From the options, the values that fall in this bracket are 0ft and 60ft