When you know your equation f(x) and they want you to find f(-4), it means that they want to know what f(x) is worth when x=-4
Therefore, you only need to plug in you x in the equation
f(x)=5x-2
f(-4)=5(-4)-2
=-20-2
=-22 (B)
Answer:
Option B.
Step-by-step explanation:
The given quadratic equation is
We need to find the solution of given quadratic equation.
Divide both sides by 9.
Taking square root on both sides.
The solution of given equation are 
and 
.
Therefore, the correct option is B.
Answer:
9 4/5
Step-by-step explanation:
5 1/5+4 3/5
26/5+23/5
lcm of the denominator is 5
26+23 everything all over 5
49/5
9 4/5
The GCF (greatest common factor) of both of these numbers is 4, so if you divide the numerator and denominator by 4, you get 3/5.
Anything to the power of one is it self so
27^1/3
27/3
9
