Answer:
32
Step-by-step explanation:
4 or less, let it rest. 5 or more, let it soar
The first card's probability is easy to calculate.
Of the 52 cards, 26 are black, so the probability is
(26 out of 52) or (1 out of 2) or .5
The second card will be drawn from 51 cards of which 25 are black:
25 / 51
Continuing with this pattern, drawing the 3rd card, the probability is
24 / 50
For the 4th card 23 / 49
For the 5th card 22 / 48
For the 6th card 21 / 47
So, to get the probability of drawing all six cards AND getting all black, we multiply these 6 fractions:
probability = (26 / 52) * (25 / 51) * (24 / 50) * (23 / 49) * (22 / 48) * (21 / 47)
probability =
<span>
<span>
<span>
165,765,600
</span>
</span>
</span>
/
<span>
<span>
<span>
14,658,134,400
</span>
</span>
</span>
probability =
<span>
<span>
<span>
0.0113087788306812
</span>
</span>
</span>
71/100 because 71 cant be divided by anything
Substitute the value of y in the equation as -1,
(-1)^2-31(-1)-17 = 1+31-17 = 15
Answer:
31 hours
Step-by-step explanation:
June and Stella can create 6 floral arrangements in one hour.
They take in 372 Valentine's Day order
No of hours = orders / (June's rate + Stella's rate)
June's rate = 6 arrangements / hour
Stella's rate = 6 arrangements / hour
June's rate + Stella's rate = 2(6 arrangements /hour)
= 12 arrangements / hour
No of hours = 372 arrangements / 12 arrangements / hour
= 31 hours
June and Stella have 31 hours to fulfill the 372 Valentine's Day order
