Answer:
B.90
Step-by-step explanation:
As there are 10 people and choosing chairperson occurs first as an independent event
=> The number of possible chairperson is 10.
After the chairperson is chosen, the number of names left in the hat is 9
=> There are 9 possible vice-chair.
However, the names left in the hat depends on which name is elected as chairperson
=> Choosing vice-chair is a an event dependent on the first event.
=> The number of possible combinations of chair and vice chair would be:
9x10 = 90
Answer:
0=7
2=12
4=22
Step-by-step explanation:
brainleist pls
Total of the 6 lawna = 10 + 15 + 12 + 15 + 8 + 15 = $75
Given that the mean is $12 for 7 lawns,
Total of the 7 lawns = 12 x 7 = $84
Therefore the 7th lawn is:
$84 - $75 = $9
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Answer: He earns $9 on the 7th lawn. (Answer A)
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The radius is 9. U just need to do the circumference divided by 2
Answer:
x = -1
Step-by-step explanation:
The vertex is halfway between the focus and the directrix.
So here the directrix is a vertical line to the left of the vertex and passing through the point (2-3, 9) = (-1, 9)
It is x = -1.