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vlada-n [284]
3 years ago
14

Write the equation (0,5) (2.0)

Mathematics
1 answer:
deff fn [24]3 years ago
6 0
The answer will be y=-5/2x+5
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A textbook search committee is considering
lora16 [44]

Number of ways to select 3 books from 13 books for adoption is 286 .

<u>Step-by-step explanation:</u>

A Permutation is an ordered Combination. When the order does matter it is a Permutation. There are basically two types of permutation:

  • Repetition is Allowed: such as the lock above. It could be "333".
  • No Repetition: for example the first three people in a running race. You can't be first and second.

Formula is given by:

nC_r= \frac{n!}{r! (n-r)!} , where n is the number of things to choose from,  and we choose r of them,  no repetitions,  order matters. Here , n=13 , r=3.

⇒ 13C_3 = \frac{13!}{3!(13-3)!}

⇒ 13C_3 = \frac{13!}{3!(10)!}

⇒ 13C_3 = \frac{13(12)(11)10!}{3(2)(1)(10)!}

⇒ 13C_3 = 13(2)(11)

⇒ 13 C_3 = 286

∴ Number of ways to select 3 books from 13 books for adoption is 286 .

3 0
3 years ago
Please help me!!!!! <br>find the area of a square with a side length of 24.6 km
lubasha [3.4K]
It would be 24.6 ×24.6
it's 605.16
4 0
3 years ago
Marian buys a dress that costs $32.00. She pays 10%
never [62]

Answer:

B, $35.20

Step-by-step explanation:

32 increase 10% =

32 × (1 + 10%) = 32 × (1 + 0.1) = 35.2

4 0
3 years ago
Read 2 more answers
Find the constant of proportional (r) in the equation y = rx​
RUDIKE [14]

Answer:

Constant of proportionality,  

Step-by-step explanation:

Constant of proportionality states that the constant value of the ratio of two proportional quantities x and y,

it is written in the form of y = kx, where k is the constant of proportionality.

Given the equation:                         .....[1]

where r is the constant of proportionality.

From the table we consider

x = 14 and y = 1.4

Substitute these given values in [1] to solve for r;

Divide both sides by 14 we get;

therefore, the Constant of proportionality,  

4 0
3 years ago
What is located closest to the orgin
jeka94
The zero is closed to the origin
6 0
3 years ago
Read 2 more answers
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