C. -13 all you have to pretty much do is subtract -25 from -12 and you would get -13
Make f(x) = y
y = (15x + 50)/(x + 5)
Swap the x and y and make y the subject again
x = (15y + 50)/(y + 5)
x(y + 5) = 15y + 50
xy + 5x = 15y + 50
xy - 15y = 50 - 5x
y(x - 15) = 50 - 5x
y = (50 - 5x)/(x - 15)
So inverse function f^-1(x) = (50 - 5x)/(x - 15)
Answer: 92378
Step-by-step explanation:
Given : At the grocery store, Hosea has narrowed down his selections to 7 vegetables, 6 fruits, 5 cheeses, and 6 whole grain breads.
Total items : 7+6+5+6=24
If he wants all cheeses , then the remaining items needed to be select = 15-5=10
Total items left from which he will select = 24-5=19
No. of combinations of r things out of n : 
The combination of 10 things selecting from 19 things given by :-

Hence, the number of ways he can choose 15 items to buy if he wants all 5 cheeses =92378
The linear function has an equation
y = -3x + 6
The equation of the circle is
<span>y2 + x2 = 16
Substituting
(-3x + 6)^2 + x^2 = 16
This quadratic equation has real solutions which mean that the line and the circle will intersect
</span>
-3/8 -1/10 = (-15 -4)/40 = -19/40
so this mean that choice D. is right sure
hope this will help you