Answer:
The mean is 20
Step-by-step explanation:
17+19+21+23=80
80 div 4 = 20
17^2 - 12^2
289 - 144 = 145
Sqrt of 145 = 12.04159…
The answer rounded to two decimal places is 12.04 cm.
The additive inverse of a number is what u add to that number to get 0.
The additive inverse of a = -a so the additive inverse of 16 5/7 = -16 5/7
F(x) = <span>3x/(8+x) = y
f^(-1) is the inverse function. As its name suggests if f(x) = y that we need to find a g(x) such that g(y) = x
In order to find f^(-1) switch x with y and solve for y
3y/(8+y) = x
x(8+y) = 3y
8x+xy = 3y
8x=3y-xy
8x = y(3-x)
y = 8x/(3-x)
f^(-1) = y = </span>8x/(3-x)
