Solve the equation for the variable. Show all work. 14 x – 21 = 49
2 answers:
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Answer:
Step-by-step explanation:
Given
See comment for missing part of the question
Required
Complete the expression to determine the dimension of a rectangle
We have:
Open bracket
Equate to 0
Expand
Factorize
Factor out x + 2
Solve for x
or
or
The value of x cannot be negative
So:
Recall that:
So:
---- i.e. 5 - 3
Answer:
C.
Step-by-step explanation:
Given:
To find the domain of a logarithmic function, we need to take the argument, 8x, and set it greater to zero. This is because an argument of a logarithmic function cannot be zero or negative.
So since x is greater than zero, we have just found out our domain:
Interval Notation: (0, ∞)
Set Notation: {}