Assume f(x)=-2x+8 and g(x)=5x. what is the value of (f-g)(2)?

(f - g)(2) = -6

Step-by-step explanation:

(f - g)(2) = (-2x + 8) - 5x, where x=2

             = (-2(2) + 8) - 5(2)

             = (-4 + 8) - 10

             = 4 - 10

             = -6

(f - g)(2) = -6

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.