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Anit [1.1K]
3 years ago
14

-3x(x+8)+x+2(9-x-x^2) please show solving steps

Mathematics
1 answer:
Flauer [41]3 years ago
4 0

Answer:

-5x^2 - 25x + 18

Step-by-step explanation:

-3x ( x + 8 ) + x + 2 ( 9 - x - x^2 )  ( original equation )

-3x^2 - 24x + x + 18 - 2x - 2x^2   ( distribute )

-3x^2 - 2x^2 - 24x + x - 2x + 18   ( order them based on the variables . )

( -3x^2 - 2x^2 ) (- 24x + x - 2x ) ( + 18 )    ( just separated them not a part of solving !! )

-5x^2 - 25x + 18    ( solved , and the answer :) )

Hope its helps !!!

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A bottle fruit juice holds 1.89L. If shakira bought almost 6L of fruit juice, how many bottles did she buy
anyanavicka [17]
Since the question is asking how many bottles Shakira bought that was ALMOST 6L, she bought about 3 bottles.

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To check your work, multiply 3.175 by 1.89, you’d get 6.00075, about 6L.

The question is asking ALMOST, so it can’t be exact, so uyour answer would instead be 3.
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3 years ago
4/r=5/7solve for r. Help pls
antiseptic1488 [7]
Hello!

You first cross multiply

4 * 7 = 28

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The answer is 28/5 or 5.6

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