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snow_lady [41]
2 years ago
11

Which of the following is equivalent to (x2+y)(y+z)? Explain your answer

Mathematics
1 answer:
PolarNik [594]2 years ago
4 0

Answer:

X^2y+x^2z+y^2+yz

Step-by-step explanation:

x^2(y+z)+y(y+z)

x^2y+x^2z+y^2+yz

basically you distrinbute the first bracket to the second bracket

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3(10+k)=total

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Nico wants to buy blinds for his window. The blinds are 140 cm wide. Will
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Answer:

No, the blinds will not fit inside a 45-inch space.

Step-by-step explanation:

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2 years ago
determine the most appropriate hypothesis test to use for the following scenario: the august 2008 edition of academy of manageme
seraphim [82]

Answer:

Since the calculated z =-3.5357 falls in the critical region z ≥ 1.645 we reject H0 and conclude that the sample provides sufficient evidence to indicate that the true percentage of all firms that announced one or more acquisitions during the year 2000 is ≥ 30%

Step-by-step explanation:

<u><em>Testing  hypothesis about a population proportion when sample size is large.</em></u>

If the sample size is large then the variable

z= p^-p / sqrt [pq/n]

is approximately standard normal.

Formulate the hypotheses as

H0 : p < 30%   against the claim Ha: p ≥ 30%

Choose the significance level ∝= 0.05

the critical region is z ≥ 1.645 because the alternative hypothesis is stated on a greater  than or equal to basis.

Computing

Z= 748-(2778*0.3)/ √2778*30/100*70/100

z= 748-833.4/√583.38

z= -85.4/24.153

z=-3.5357

Since the calculated z =-3.5357 falls in the critical region z ≥ 1.645 we reject H0 and conclude that the sample provides sufficient evidence to indicate that the true percentage of all firms that announced one or more acquisitions during the year 2000 is ≥ 30%

The p- value is 0.0002

7 0
3 years ago
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