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4 years ago

What is equivalent to the complex number i^38

Mathematics

2 answers:

astra-53 [7]4 years ago

7 0

Answer:

Your answer is negative one

Liula [17]4 years ago

6 0

It is equal to negative one because of I

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how many different angles would be formed by a transversal intersecting three parallel lines? How many different angle measureme

RSB [31]

You would get alternating interior and exterior angles, corresponding and consecutive angles, and vertical angles. There would be only two different angle measurements, which would add to 180 degrees, the degree of one straight line.

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3 years ago

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manufacturing company produces digital cameras and claim that their products maybe 3% defective. A video company, when purchasin

alexdok [17]

Answer:

P(X>17) = 0.979

Step-by-step explanation:

Probability that a camera is defective, p = 3% = 3/100 = 0.03

20 cameras were randomly selected.i.e sample size, n = 20

Probability that a camera is working, q = 1 - p = 1 - 0.03 = 0.97

Probability that more than 17 cameras are working P ( X > 17)

This is a binomial distribution P(X = r) $nCr q^{r} p^{n-r}$

$nCr = \frac{n!}{(n-r)!r!}$

P(X>17) = P(X=18) + P(X=19) + P(X=20)

P(X=18) = $20C18 * 0.97^{18} * 0.03^{20-18}$

P(X=18) = $20C18 * 0.97^{18} * 0.03^{2}$

P(X=18) = 0.0988

P(X=19) = $20C19 * 0.97^{19} * 0.03^{20-19}$

P(X=19) = $20C19 * 0.97^{19} * 0.03^{1}$

P(X=19) = 0.3364

P(X=20) = $20C20 * 0.97^{20} * 0.03^{20-20}$

P(X=20) = $20C20 * 0.97^{20} * 0.03^{0}$

P(X=20) = 0.5438

P(X>17) = 0.0988 + 0.3364 + 0.5438

P(X>17) = 0.979

The probability that there are more than 17 working cameras should be 0.979 for the company to accept the whole batch

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4 years ago

two pools are leaking. after 15 minutes (1/4 hour), pool A has leaked 2/3 of a gallon. after 20 minutes (1/3 hour) pool B has le

Dennis_Churaev [7]

Answer:

The first pool

Step-by-step explanation:

If you were to look at a full hour of loss you would count that the first pool loses 2 2/3 gallons per hour while the second pool only loses 2 1/4 gallons per hour.

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3 years ago

The surface area of three dimonsensed face is the sum of all the the surface areas of each of the face given below are the nets

Ann [662]

Answer:

cylinder:

curved sa = 2πrh

=> rectangle, breath = h, width = perimeter of circle = 2πr

total sa = 2πrh+2πr^2

=> curved sa + area of 2 circles

cone:

curved sa = πrl

=> treated as a triangle, base = circumference of circle, height = slant height

total sa = πr^2+πrl

=> curved sa + area of base (circle)

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3 years ago

Help please asap!!! working too please not just the answers!!

omeli [17]

Answer:

Area = 4600m

explanation: I worked it out in the image attached if that helps let me know if you need a more in depth explanation step by step

8 0

3 years ago

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