(3x+7)(2x−5)
=(3x+7)(2x+−5)
=(3x)(2x)+(3x)(−5)+(7)(2x)+(7)(−5)
=6x2−15x+14x−35
=6x2−x−35
Hope This Helps.
Answer:
All real numbers
(-∞, ∞)
Step-by-step explanation:
Domain is the set of x-values that can be inputted into function f(x).
We see here that our function is a parabola. We also see that we can plug in any number <em>x </em>and we would get an output <em>y</em>. Therefore, our domain is all real numbers:
(-∞, ∞)
Answer:
65%
Step-by-step explanation:
We will find the percentage of people by dividing the amount of people who were satisfied by the total amount of people surveyed.
1820 / 2800 = 0.65
Then we convert this number into percentage by multiplying it by 100
0.65 * 100 = 65
Hello,
It is enough to prove that g(x)=f(^-1)(x)
f(x): y=(2x+3)/(x+4)
f(^-1): x=(2y+3)/(y+4)
==>xy+4x=2y+3
==>y(x-2)=3-4x
==>y=(3-4x)/(x-2)
==>y=(4x-3)/(2-x)= g(x)