Answer: x= -4 and y=-3
Step-by-step explanation:
We know that a complex number is given by :-
, where a = real part and b = imaginary part .
When two complex number are equal then
Given equation represents two complex numbers are equal.
⇒ corresponding real part are equal.
⇒ 9x=-36
⇒ x= -4 [Divide both sides by 9]
Also, corresponding imaginary part are equal.
⇒ -18= 6y [coefficient of i]
⇒ -3=y [Divide both sides by 6]
Therefore , the values of x and y are -4 and -3 respectively.
For this case we have the following equation:
Where, by definition, we have the following variables:
d (x): the daily expense per truck (in dollars)
x: the daily mileage
Therefore, the domain of the function is given by:
Equivalently:
[0, ∞)
Answer:
The input for the function includes all positive real numbers
option d.