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Effectus [21]
3 years ago
9

An octopus has 3 legs what color is the shape of the moon

Mathematics
1 answer:
earnstyle [38]3 years ago
8 0

Answer:

purpleeeeeeeeeeeeee

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38/6 as a decimal would be 6.3333 (the three is repeating)
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6

Step-by-step explanation:

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An engineer wants to know if the average amount of energy used in his factory per day has changed since last year. The factory u
m_a_m_a [10]

Answer:

<em> The calculated value Z = 1.8823 <1.96 at 0.05 level of significance</em>

<em> The average amount of energy used in his factory per day has changed since last year.          </em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that mean of the Population = 2000 (MWH)

Given that size of the sample 'n' = 400

Given that mean of sample x⁻ = 2040 MWH

Given that the standard deviation = 425 MWH per day

<u><em>Step(ii):-</em></u>

<u><em>Null hypothesis:H₀: μ = 2000 (MWH)</em></u>

<u><em>Alternative Hypothesis:H₁: μ≠ 2000( MWH)</em></u>

<em>Test statistic</em>

<em>                  </em>Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }<em></em>

<em>                 </em>Z = \frac{2040-2000}{\frac{425}{\sqrt{400} } }<em></em>

<em>                Z =  1.8823</em>

<em>The calculated value Z = 1.8823 <1.96 at 0.05 level of significance</em>

<u><em>Final answer:</em></u><em>-</em>

<em> The calculated value Z = 1.8823 <1.96 at 0.05 level of significance</em>

<em> The average amount of energy used in his factory per day has changed since last year.          </em>

3 0
2 years ago
What conclusions can be drawn about finding the quotient in scientific notation? Check all that apply.
irga5000 [103]

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B.The exponent of the solution is –12, the difference of the original exponents.

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D.The quotient is 3.0 ×

Step-by-step explanation:

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Where is the question?

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