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astraxan [27]
3 years ago
6

NEED HELP!! Please help really hard for me because i´m dumb sometimes.

Mathematics
2 answers:
ivanzaharov [21]3 years ago
7 0

Answer: It is C. None of the above

xenn [34]3 years ago
7 0

Answer: It is C. None of the above

Step-by-step explanation:

B. you're adding 1.5 when you should be subtracting it

A. two negatives make a positive so you would be adding

*again you should be subtracting*

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2 years ago
Help!! <br><br> I think I got these wrong, so please help!! Thank you!
Andrew [12]

Answer:

(x+3)(x+4)(x-4)

x+2 and x-3 are not factors but x-4 is

Step-by-step explanation:

let's factor it :)

x^3 + 3x^2 - 16x -48

first we will factor this:

x^3 + 3x^2

x^2(x + 3)

then factor the second part :

- 16x - 48

-16(x + 3)

so now,

x^2(x + 3) - 16(x + 3)

factor out x+3

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8 0
2 years ago
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dimaraw [331]
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2 years ago
Write 2x=y/3-4 in standard form
Sveta_85 [38]
Look in the attached file to see answer

7 0
3 years ago
Read 2 more answers
How to solve for -3x squared + 2y squared + 5xy - 2y + 5x squared - 3y squared when x = 0.5 and y = -1/10??
Pani-rosa [81]

Answer:

0.44

Step-by-step explanation:

-3x^2 + 2y^2 + 5xy - 2y +5x^2 - 3y^2

Combine like terms

-3x^2 + 5x^2 = 2x^2 2y^2 - 3y^2 = -1y^2

2x^2 - 1y^2 + 5xy - 2y

Now plug in the solutions Note: it is easier if you have all decimals or all fractions (-1/10=-.1

2(0.5)^2 - 1(-0.1)^2 + 5(0.5)(-0.1) - 2(-0.1)

Simplify:

0.5 - 0.01 - 0.25 + 0.2

0.5 + 0.2 - 0.01 - 0.25

0.7 - 0.26

0.44

5 0
3 years ago
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