Subtracting a value from the exponent shifts the graph to the right.
So if you subtract 3, the graph would shift 3 units to the right.
I don't think it matters how many families are involved.
You're talking nine live births, and the probability of a
male birth each time is 50% .
So the probability of nine males in nine births is
(1/2)^9 = 1/512 = about <em>0.195 percent </em>(rounded)
Answer:
- 9/7
Step-by-step explanation:
7x + 13 = 4
- 13 = -13
7x= -9
x = -9/7
Answer:
GF = 25.2
Step-by-step explanation:
GF/BC = (AD-FE)/AD
GF = BC(AD-FE)/AD = 36(20-6)/20
GF = 25.2
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The ratio of GF to BC is the ratio of DE to DC. The ratio of FE to AD is the ratio of CE to CD. That is ...
GF/BC = (CD-CE)/CD = 1 - FE/AD = (AD -FE)/AD . . . . . as above
This means that...
the first worker does 1/8 of the job each hour.
the second worker does 1/4 of the job each hour.
the third worker does 1/4 of the job each hour.
So together they get 1/8+1/4+1/4 of the job done per hour.
Rate: 5/8 of the job per hour
Now if we know the rate, the job will be finished in...
1/(5/8) hours ----> 1.6 hours or 1 hour and 36 minutes
answer: 1.6 hours or 1 hour and 36 minutes