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Deffense [45]
3 years ago
12

Pls try doing these 3 it is only one question each page

Mathematics
2 answers:
dusya [7]3 years ago
7 0

Answer:

yes

Step-by-step explanation:

MariettaO [177]3 years ago
7 0

Answer: 14x+11 ,8x−20,6x+12,1

Step-by-step explanation:

(4)(2x)+(4)(−1)+(3)(2x)+(3)(5)

=8x+−4+6x+15

Combine Like Terms:

=8x+−4+6x+15

=(8x+6x)+(−4+15)

=14x+11

(6)(2x)+(6)(−3)+(−2)(2x)+(−2)(1)

=12x+−18+−4x+−2

Combine Like Terms:

=12x+−18+−4x+−2

=(12x+−4x)+(−18+−2)

=8x+−20

(2)(5x)+(2)(3)+(−2)(2x)+(−2)(−3)

=10x+6+−4x+6

Combine Like Terms:

=10x+6+−4x+6

=(10x+−4x)+(6+6)

=6x+12

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For every 1000 pairs sold, the manufacturer expect to replace 239 pairs for free.

Step-by-step explanation:

Given:

Mean (μ) = 2.2, Standard deviation(S.D) (σ) = 1.7 years and x = 1 (1 year)

Let's find the Z score.

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Now plug in the given values in the above formula, we get

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Since it z is negative, so we subtract 0.2611 from 0.5000

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= \frac{23.89}{100} .1000 = 238.9

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The cannot be in decimal, when we round off to the nearest whole, we get

239

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