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Molodets [167]
3 years ago
13

Alex has four books of different sizes which he wishes to place on a bookshelf. Unfortunately, the bookshelf has a conspicuous h

ole at one end through which only the smallest book can fall. If he wishes for all his books to stay stationary, in how many ways can he arrange his books?
Mathematics
1 answer:
vredina [299]3 years ago
6 0
18, you have 3 choices for the bottom because you can't use the small one, 3 choices for the next because you can now use the small one, 2 for the next and finally 1. You multiply all of them to get 18
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What is the PV of an ordinary annuity with 10 payments of $2,700 if the appropriate interest rate is 5.5%? Group of answer choic
Verizon [17]

Answer:

The PV of an ordinary annuity with 10 payments of $2,700 if the appropriate interest rate is 5.5% is $20,352.

Step-by-step explanation:

P = PMT [(1 - (1 / (1 + r)^{n})) / r]

= 2,700 [(1 - (1 / (1 + 0.055)^{10})) / 0.05]

= 2,700 [(1 - (1 / (1 + 0.055)^{10})) / 0.05]

= 2,700 [(1 - (1 / (1.708)) / 0.05]

= 2,700 [(1 - 0.58)) / 0.05]

= 2,700 [(0.41457) / 0.05]

= 2,700(7.53)

=$ 20,352

5 0
3 years ago
A lawyer has an annual income of $173,482 and will pay a 5.5% income tax rate. What is the amount of income tax in dollars and c
gayaneshka [121]

Answer:

173,482-5.5=173,476.5

4 0
3 years ago
In one hour Dele walks 8km. how long will it take her to walk 14km at the same rate​
erastovalidia [21]

Answer:

it will take her 2 hours and 45 minutes

8 0
2 years ago
726,000 scientific notation<br><br>​
il63 [147K]

Answer:

7.26000 × 10^{5}  

I hope this helps!

3 0
2 years ago
Read 2 more answers
1. Solve for x: 3x-3/5+2=5
WINSTONCH [101]

Answer:

x = 6/5

Step-by-step explanation:

3x - 3/5 + 2 = 5

<u>Add 3/5 and -2 on both sides.</u>

3x = 5 + 3/5 - 2

3x = 18/5

<u>Divide 3 on both sides.</u>

x = 18/5 ÷ 3

x = 18/15

x = 6/5

7 0
3 years ago
Read 2 more answers
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