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NikAS [45]
3 years ago
14

is (x-2) a factor of f(x) = x^3 − 2x^2 + 2x + 3, use either remainder theorem or factor theorem to explain your reasoning

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

no

Step-by-step explanation:

divide the polynomials using polynomial division

       ___<u>0    +  x^2    +   2</u>_____________

x - 2 |     x^3  -  2x^2  +  2x  +  3

           -  x^3  +  2x^2

             __________

                             0  +  2x  +  3

                                -  2x  +   4

                             _________

                                             7

Since there is a remainder, (x-2) cannot be a factor of (x^3 - 2x^2 +2x + 3); because it does not divide evenly.

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Kazeer [188]

Answer:

population standard deviation does not differ from 0.25

Step-by-step explanation:

The hypothesis :

σ² = 0.25²

σ² ≠ 0.25²

The Chisquare statistic, χ²: (n-1)*s²/σ²

Where s² = sample variance ; sample size, n = 30

Using calculator, the sample variance, s² = 0.1646

χ² = (n-1)*s²/σ²

χ²: (30 - 1) * 0.1646 / 0.25²

χ² = (29 * 0.1646) / 0.0625

χ² = 0.3292 / 0.0625

χ² = 5.2672

α = 0.05

Using the Pvalue from Chisquare calculator ; df = 29

Pvalue = 1

Since, Pvalue > α ; We fail to reject the null and conclude that population standard deviation does not differ from 0.25

4 0
2 years ago
Yo can someone help me with this please and please ex plain
Novay_Z [31]

Answer:

c) The car dealer's business is expanding rapidly.

Step-by-step explanation:

You can tell because they're selling more and more every month.

7 0
2 years ago
Twice a number divid by 6 is 42
il63 [147K]
A number=x

2x/6=42
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Lubov Fominskaja [6]
F(x)=-4(-1)-5 
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X -5,-3,4,1,-1,-2,0,2,3,-4
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Answer:

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