There are 24 students in mr bobs math class 5/8 of these students earned an a on the geometry assessment how many students earne
1 answer:
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Answer:
Ginny made a mistake in step 1 when she identified b = 31. It should be b=-31
Step-by-step explanation:
Ginny factored as shown:
ac = –180 and
b = 31
36(–5) = –180 and 36 + (–5) = 31
+ 36x – 5x – 30
6x(x + 6) – 5(x + 6)
(x + 6)(6x – 5)
b is the coefficient of x and from the trinomial , b=-31.
Therefore Ginny made a mistake in step 1 when she identified b = 31. It should be b = –31.
The correct steps are: :
ac = –180 and
b = -31
36(–5) = –180 and -36+5 = -31
Answer:
Step-by-step explanation:
Let M denote the event that the stock makes money and D denote the event that the stock pays dividends.
It is given that
Observe that the two events M and D are not independent because if the stock doesn't make money then it will not pay dividends. Therefore the event (D given M does not occur) is a null event, i.e
It is also given that,
Recall that :
Here, we are required to find