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Hunter-Best [27]
3 years ago
14

Review the proof of de Moivre’s theorem.

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Just took it.

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Solve for x in a right triangle (show work)
AnnZ [28]

Answer:

35.09°

Step-by-step explanation:

You can use cos theta to find the value of x.

Let us solve now.

They have already given the lengths of the hypotenuse and adjacent.

Hypotenuse = 33

Adjacent = 27

Let us solve now.

Cos x = Adjacent ÷ Hypotenuse

Cos x = 27 ÷ 33

Cos x = 0.8181

x = Cos⁻¹ 0.8181

x = 35.09°

Hope this helps you :-)

Let me know if you have any other questions :)

5 0
2 years ago
HOW TO DO THIS QUESTION ​
Ierofanga [76]

Answer:

8 : 2.5

Step-by-step explanation:

3√512:  Convert the decimal into an equivalent fraction You can also use a calculate to divide 1 by the fraction.

<em><u>Please mark as brainliest if answer is right </u></em>

Have a great day, be safe and healthy  

Thank u  

XD  

3 0
3 years ago
Read 2 more answers
Sherelle and Venita find two bags of coins in their grandmother’s attic. Each girl selects a bag, takes a random sample of 20 co
S_A_V [24]

Answer:

Step-by-step explanation:

Hello!

The five-number summary comprehends the minimum and maximum values, the 1st and 3rd quartiles and the median.

1st step: is to arrange the data sets from least to greatest.

Sherelle:

26 39 56 58 60 62 65 66 66 68 71 72 72 73 74 75 81 83 84 85

Venita:

44 45 51 51 53 53 55 57 58 62 65 66 69 69 70 73 75 77 78 79

2nd step: To calculate each quartile you have to determine their position and then identify which observation sits in that position:

Quartile 1:

PosQ₁: n/4= 20/4= 5

Quartile 2 (Median)

PosMe: n/2= 20/2= 10

Quartile 3

PosQ₃: n*(3/4)= 20*(3/4)= 15

Since both samples have the same size, the 1st quartile will be the fifth observation of each sample, the median will be the tenth observation and the 3rd quartile will be the fifteenth.

Sherelle:

Q₁: 60

Me: 68

Q₃: 74

Minimum: 26

Maximum: 85

Venita:

Q₁: 53

Me: 62

Q₃: 70

Minimum: 44

Maximum: 79

I hope this helps!

3 0
4 years ago
A whole theater has the capacity to hold 1,000 people. On the opening night, the theater was 95% full. What part of the theater
kobusy [5.1K]

Answer:

950 People

Step-by-step explanation:

If you have 95% of 100 then it is 95, correct? So, if you have 95% of 1000, the it must be 950.

Just saying, it might be wrong but try it anyways... if it isnt right then im sorry.

3 0
4 years ago
How long is a meter <br> you can not use google
Mnenie [13.5K]

100 cm, hope this helps, have a good day

4 0
3 years ago
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