Step-by-step explanation:
2. The number of ways to choose 2 people from a group of 4 (where the order doesn't matter) is ₄C₂.
The number of ways to choose 2 people from a group of 3 (not including Jason) is ₃C₂.
So the probability is ₃C₂ / ₄C₂ = 3/6 = 1/2.
3. If Damian has already been selected, then the probability that J.T. will be selected from the remaining 8 is 1/8.
4. This question is oddly worded. The sales and marketing teams will be equally represented <em>on average</em>. If many pairs are selected and replaced, sales will be selected 4/9 of the time, and marketing will be selected 5/9 of the time. However, for any particular pair, the representation will not be proportional.
Answer:
182
Step-by-step explanation:
Look at the left side of the polygon. Since they are both real numbers, we can use those to set up a proportion:
16:12=(x-1):6
Now, we can cross multiply and solve:
96=12(x-1)
96=12x-12
108=12x
9=x
The value of x is 9
Hope this helped!
We want to simplify:
first we factorize
as
then multiply
by
to equalize the denominators of the first expression, and add the fractions.
simplify x+3:
a.
b.
steps already described
c.
x cannot be -1, nor -3 because the fractions with denominators (x+1) and (x+3) would not be defined.
Answer:
2/4
Step-by-step explanation: