Answer:
= 0.42% probability that the first 2 presentations will be by Drake and Todd, in that order.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question, since the order in which the students are chosen is important, the permutations formula is used to solve it.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
Desired outcomes:
Drake then Todd, so only one outcome, which means that 
Total outcomes:
Two students from a set of 16, so:
What is the probability that the first 2 presentations will be by Drake and Todd, in that order?
= 0.42% probability that the first 2 presentations will be by Drake and Todd, in that order.
Your new point would be (-1,-1)
Congruent means same shape and same size
Answer:
<em> The simplified answer is 
</em>
Step-by-step explanation:
For the given expression: (− 1/x )× 1−x/1+x × x/x^2−1
we need to simplify it
<em> 
= (x+1)×(x-1)</em>
eliminating x and x-1 from the given equation we get
The value of x can't be zero
As we can't divide zero by zero
The value of x can't be one
As we can't divide zero by zero
<em> The simplified answer is </em>
Answer:
Step-by-step explanation:
Answers in order:
7 + 7b - 4 = -6
7b + 1 = -6
7b = -7
b = -1
Hope this helps!
