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kobusy [5.1K]
3 years ago
15

Which property applies only to addition and subtraction

Mathematics
1 answer:
ad-work [718]3 years ago
3 0
Addition you add and in subtraction you subtract
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When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 21%
Elan Coil [88]

Answer:

usual number of yellow eggs = 12

Usual maximum = 21

Usual minimum = 3

Step-by-step explanation:

To solve this, we will use the expected value of a binomial probability.

The formula is;

E(X) = np

Where;

n is sample size

p is probability of success.

We are given;

n = 58

p = 21%

Thus;

usual number of yellow eggs in samples = np = 58 × 21% = 12.18 ≈ 12

From USL(Upper specification limit) and LSL(Lower specification limit) formula, we can find the maximum usual number and minimum usual number of eggs respectively.

Thus;

USL = n(p + 3√(p(1 - p)/n)

USL = 58(0.21 + 3√(0.21(1 - 0.21)/58)

USL = 21.48 ≈ 21

LSL = n(p - 3√(p(1 - p)/n)

LSL = 58(0.21 - 3√(0.21(1 - 0.21)/58)

LSL = 2.87 ≈ 3

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Eddi Din [679]

Answer:

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Step-by-step explanation:

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Answer:

-3x+8

Step-by-step explanation:

−2x−x+8

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