ANSWER :
D. f(x) = -|x - 4|
EXPLANATION :
The general equation of an absolute value function is :
where the sign of a indicates the opening of the graph.
If it is positive, the graph opens upward
If it is negative, the graph opens downward
and the vertex is at (h, k)
From the options, the value of a is all equal to 1.
The graph opens downward, so the sign is negative
and the vertex is at (4, 0)
That will be :
Answer:
39.16% probability of selecting three Democrats and three Republicans
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question, the order in which the people are selected is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
Desired outcomes:
3 Democrats, from a set of 8.
3 Republicans, from a set of 8.
Total outcomes:
6 people from a set of 16.
Probability:
39.16% probability of selecting three Democrats and three Republicans