Answer:
Relation
Step-by-step explanation:
Unsure of whether this is a composite function or not. It does look like you've multiplied f(x) and g(x) together.
Looking at <span>-30x2 - 9x + 12, we see immediately that this is a polynomial function. Because of that, the domain is the set of all real numbers. The graph of this poly opens down, so the max value is at the vertex, x = -b / (2a).
Here a= -6 and b= -9, so this x-value is -(-9) / (2*(-6)), or x = 9/12, or x = 3/4.
By subst. 3/4 for x in the poly., we find that the max y value is 4.83. Thus,the rante is (-infinity, 4.83].</span>
Answer:
8/25
Step-by-step explanation:
The total amount of tickets is 25 so divide 10 from 25 to figure out what you multiply by to get 25
--> 25/10 = 2.5
now multiply 2.5 x 3 to have a numerator which would be your probability of winners out of 25 tickets
--> 2.5 x 3 = 7.5 (round to the nearest whole number)
7.5 rounded to the nearest whole number --> 8
so you get 8 out of 25 = 8/25
If you are looking for the percent off it would be 25% off and if you were looking for the amount off in decimal form it will be 0.25.