Answer:
11.1
C is the correct option.
Step-by-step explanation:
We have been given the equation [tex]-x+3.9[/tex] and we have to evaluate this expression for [tex]x=-7.2[/tex]
In order to find the same, we can substitute x = -7.2 in the expression
[tex]-(-7.2)+3.9[/tex]
Now, we know the rule (-)(-)=+
[tex]7.2+3.9[/tex]
On adding, the numbers, we get
[tex]=11.1[/tex]
Hence, the value of the expression at x = -7.2 is 11.1
C is the correct option.
