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olga55 [171]
3 years ago
6

The librarian purchased 22 copies of a best-selling book for $385.66.

Mathematics
1 answer:
adell [148]3 years ago
7 0

Answer:

$17.53

Step-by-step explanation:

You know the total price of 22 copies was $365.66. To find the price of one copy, you divide 365.66 by 22 to get $17.53 per copy.

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Factorise<br>. (x+2) ²-6 (x+ 2) +9​
soldier1979 [14.2K]

Answer:

(x-1)(x-1)

Step-by-step explanation:

hello :

(x+2) ²-6 (x+ 2) +9​ =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²</em>

by identity :   (a-b)² = a²-2ab+b²

let : a=x+2   and   b= <em>3</em>

(x+2) ²-6 (x+ 2) +9​ =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²=</em> ((<em>x+2)-3</em>)<em>²= (</em>x+2-3)² = (x-1)²=

(x-1)(x-1)

4 0
4 years ago
Find the value of k if y-' is a factor of y³ + 4y² + ky - 6 ​
ki77a [65]

Answer:

1

step by step explanation

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7 0
3 years ago
F(x) = – x3 + 5x2 + 6x + 1 find the degree
Arte-miy333 [17]

To find the degree of this function, you would look at the first term of the function, which is 3. So, the degree of this function would be 3.

3 0
3 years ago
The screen on Brianna's new cellphone is 2.85 cm long. What mixed number represents this length?
mel-nik [20]

Answer:

2 17/20

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Complete the factorization.
lyudmila [28]
If you would like to complete the factorization, you can do this using the following steps:

<span>4p^2 + 36p + 81 = (2p + 9) * (2p + 9) = (2p + 9)^2
</span>
The correct result would be 9.
6 0
4 years ago
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