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Marina CMI [18]
3 years ago
8

A teacher has four books—A, B, C, and D—to assign to four students in any order he prefers. Set S includes all possible arrangem

ents of the four books. Set X includes all possible arrangements when book C is chosen first and D is chosen second. Which notation is correct? If book C is chosen first and D is chosen second, in how many ways can the teacher assign the books?
Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

720, 12, 120

Step-by-step explanation:

e2020

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What is square root of 73751
krek1111 [17]
The square root of 73751 is.....
Answer: 85.73797292
6 0
4 years ago
If 20 workers can dig a farm in 240 hours how many workers can dig the same farm in 60 hours​
IRISSAK [1]

Answer:

5 workers

Step-by-step explanation:

Find how many hours 1 worker can dig 240 / 20 = 12

60 hours / 12 hours = 5 workers.

It takes 5 workers to dig for 60 hours when 20 workers dig for 240 hours.

8 0
3 years ago
Read 2 more answers
Using A=Pe^rt solve<br><br>A=1,240,000<br>r=8%<br>t=30 years<br><br>what is P?​
muminat

Answer:

P= 112,490.26207887

P= 112,490 (it should be a whole number for oliy represents the number of humans)

Step-by-step explanation:

1,240,000 = P e^(0.08×30)

1,240,000 = P e^(0.08×30)

________ ____________

e^(0.08×30) e^(0.08×30)

P = 112,490.26207887

or

1,240,000 = P e^(0.08×30)

____________ ____________

11.0231763806 11.0231763806

P = 112,490.26207887

8 0
3 years ago
Juan's time in the race was 5.04 seconds and Tiauna's was 5.40. Explain who had the faster speed and by how much?
nasty-shy [4]

Answer:

speeds of Juan and Tiauna  are 0.1984 m/s and 0.1851 m/s respectively

Step-by-step explanation:

Given:  Juan's time in the race was 5.04 seconds and Tiauna's was 5.40 seconds

Let speed of Juan and Tiana's be J m/s and T m/s respectively

In the race both Juan and Tiauna will cover equal distance. Therefore, the speed and time would have reciprocal relationship

Speed ∝ 1/Time

This means J = 1/5.04 m/s

J= 0.1984 m/

and, T = 1/5.40 m/s

T= 0.1851 m/s

Therefore, speeds of Juan and Tiauna  are 0.1984 m/s and 0.1851 m/s respectively

3 0
3 years ago
Solve the equation. Check your solution. <br><br> 2v + 7 = 3
Leviafan [203]
2v + 7 = 3
subtract 7 from both sides
2v = -4
divide both sides by 2 to isolate the variable 
v = -2

to check: 
2(-2) + 7 =?= 3
-4 + 7 =?= 3
3 = 3
✅

Hope this helps :)
4 0
3 years ago
Read 2 more answers
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