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3 years ago

How many ways can 5 students be arranged in straight line?

Mathematics

1 answer:

Darina [25.2K]3 years ago

8 0

Answer:

That would be 5 possibilities (or 5 events for position 1).

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The list shows the number of students

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

263-239=24

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3 years ago

What is the interest you will pay if you borrowed $550 at 8% interest for 3 years?

gogolik [260]

Answer:

132

Step-by-step explanation:

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3 years ago

Read 2 more answers

2x² - 5x+1 has roots alpha and beta. Find alpha⁴+beta⁴ without solving the equation.

shepuryov [24]

Answer:

Step-by-step explanation:

$\alpha+\beta=\dfrac{5}{2} \\\\\alpha*\beta=\dfrac{1}{2} \\\\\alpha^2+\beta^2=\dfrac{21}{4} \ (see\ previous\ post)\\\\(\alpha+\beta)^4=\dfrac{625}{16} \\\\=\alpha^4+\beta^4+4*\alpha^3*\beta+6*\alpha^2*\beta^2+4*\alpha*\beta^3\\\\=\alpha^4+\beta^4+4*(\alpha*\beta)(\alpha^2+\beta^2)+6*\alpha^2*\beta^2\\\\\alpha^4+\beta^4=(\alpha+\beta)^4-4*(\alpha*\beta)(\alpha^2+\beta^2)-6*\alpha^2*\beta^2\\\\= \dfrac{625}{16} -4*\dfrac{1}{2} *\dfrac{21}{4} -6*(\dfrac{1}{2})^2 \\\\$

$= \dfrac{625}{16}- \dfrac{168}{16}-\dfrac{24}{16}\\\\\\= \dfrac{433}{16}$

7 0

3 years ago

Please Answer ASAP

Nat2105 [25]

Answer:

use a ratio

Step-by-step explanation:

you work 10 hours and make $25. How much do you earn per hour? (this is your unit rate.)

10 hours

$25

divide and you get an answer of $2.50 per hour

to check your answer work the problem backwards, take $2.50 times 10 hours = $25

6 0

3 years ago

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Michael is trying to write the algebraic expression for the following word phrase: the quotient of 6 and the sum of 5 and y? Mic

gizmo_the_mogwai [7]

Answer:

Error: He multiplied 6 by 5 + y instead of divided 6 by 5 + y

Correct solution: 6 ÷ (5 + y)

Step-by-step explanation:

- Lets revise some words of some operations in mathematics

# The sum ⇒ (+) Add

# The difference ⇒ (-) subtract

# The product ⇒ (×) multiply

# The quotient (answer of division) ⇒ (÷) divide

* Lets solve the problem

- Michael is trying to write the algebraic expression for the following

word phrase:

the quotient of 6 and the sum of 5 and y

- Lets explain that: the quotient means the answer of division so he

wants to divide a quantity by another one

∵ The first quantity is 6

∵ The second quantity is the sum of 5 and y

- He wants to divide 6 by (5 + y)

∴ The expression is 6 ÷ (5 + y)

* Error: He multiplied 6 by 5 + y instead of divided 6 by 5 + y

* Correct solution: 6 ÷ (5 + y)

4 0

3 years ago

How many ways can 5 students be arranged in straight line?​

How many ways can 5 students be arranged in straight line?