F(x) = 5x + 6
let y = f(x)
y = 5x + 6 solving for x.
y - 6 = 5x
5x = y - 6
x = (y - 6)/5
Recall f(x) = y. Implies x = f⁻¹(y)
<span>x = (y - 6)/5
</span>
f⁻¹(y) <span>= (y - 6)/5
</span>
So as well:
f⁻¹(x) <span>= (x - 6)/5</span>
Answer:
3
Step-by-step explanation:
Is their suppose to be a picture ?
Answer:
B. 6x^2+2x-7
Step-by-step explanation:
Ok so
(6x^2-3x) + (5x-7)
Then add the like terms
Theres no like terms for 6x^2
Add -3x + 5x which = 2x
Theres also no like terms for -7
SO
Your final answer is 6x^2 + 2x -7
Hope I helped! Have a good day :)
For the shoe size be equal to the length of the foot, this means that L must be equal to S. Now, since we have different equations depending on your gender, we first check the conditions for man.
Since S = 3L - 22 for men, for a person to have a foot length equal to his shoe size, we equate L to S as shown below.
L = S
L = 3L - 22
2L = 22
L = 11
Thus, we can see that men with 11-inch foot would have the same shoe size number. We can apply similar approach to find the length of a woman's foot that satisfies our conditions as shown.
L = S
L = 3L - 21
2L = 21
L = 10.5
Hence, a woman with a 10.5-inch foot have 10.5 for a shoe size as well.
Answer:
man: 11 inches
woman: 10.5 inches