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Mrrafil [7]
3 years ago
5

In the lock (shown on picture), there are ten numbers to choose from the set of (0, 1, ..., 9) and we choose 4 of them. b How ma

ny ways are there to choose them from the set of (7, 8, 9) only?
Mathematics
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

6

Step-by-step explanation:

since their are 3 numbers to choose from we do 3! or 3*2*1 which is 6.

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If one card is drawn from a standard deck of 52 playing cards what is the probability of it is not a heart
dmitriy555 [2]
I forgot how many of each card there are and if you're counting the joker.
But just find the number of heart cards, and minus that from 52.
The answer divided by 52 is the probability that it's not a heart.
6 0
3 years ago
Interpret bar graphs
Volgvan

Answer:

Reading bar graphs (multi-step) In a bar graph each bar represents a number. The following bar graph shows the number of seconds that different rides last at the fair. We can tell how long each ride lasts by matching the bar for that ride to the number it lines up with on the left.

Here is an example:

3 0
3 years ago
Which proportion can be used to find 65% of 90?
tia_tia [17]

Answer:

58.5

Step-by-step explanation:

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7 0
2 years ago
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Elan Coil [88]

Answer:

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3 0
3 years ago
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Which of these is closest to the time in years that it will take an investment to triple when it is invested in an account that
kkurt [141]

Answer:

20.4 years

Step-by-step explanation:

The nper formula in excel comes handy in this scenario:

=nper(rate,pmt,-pv,fv)

Rate is the monthly rate of 5.4%/12

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pmt is the regular cash flow the investment which is zero

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Yearly it can be expressed as = 244.68/12  =20.39  years

When rounded to one decimal place it becomes 20.4 years

5 0
2 years ago
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