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2 years ago

5

9. Kara is making copies of articles she needs to for her research paper. The local library charges $0.17 per page, and she has

55 pages to xerox. What will be the charges for her copies?

1 answer:

Dominik [7]2 years ago

8 0

9.35$ Because if you Think in ur brain and you multiply by Benjamin Franklin Then If you do
0.17x 55=9.35$ Cuz Multiply

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3 years ago

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Given that the expression x³_ ax² + bx+c leaves the same remainder when divided by x + 1 or x-2, find 'a' in terms of 'b'.

goblinko [34]

Answer:

Hi,

a=b+3

Step-by-step explanation:

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=-1&&-1&a+1&-a-b-1\\---&---&---&---&---\\&1&-a-1&a+b+1&c-a-b-1\\\end{array}$

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=2&&2&4-2a&2b+8-4a\\---&---&---&---&---\\&1&2-a&b+4-2a&c+2b+8-4a\\\end{array}$

Thus:

c+2b+8-4a=c-a-b-1

3b-3a=-9

<u>a=b+3</u>

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2 years ago