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iren2701 [21]
3 years ago
11

The complex number -5i has the complex trigonometric form of 5(cos 270° + isin 270)

Mathematics
1 answer:
Verizon [17]3 years ago
5 0

Answer:

True ,   -5i =  5*(0 - i) =  5*( cos 3π/2  + i*sin 3π/2)  = 5*(cos 270 + i*sin 270)

Step-by-step explanation:

5*( cos 3π/2 radians  + i*sin 3π/2 radians)  = 5*(cos 270 degrees + i*sin 270 degrees)

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What is the mathematical representation of joules law of heating ?​
Elza [17]

Answer:

Q = I^2 R T

Step-by-step explanation:

What is the mathematical representation of joules law of heating

What is joules law of heating ??

Joule’s law is a mathematical description of the rate at which resistance in a circuit converts electric energy into heat energy.

Mathematically

Q = I^2 R T

Where,

Q indicates the amount of heat

I show electric current

R is the amount of electric resistance in the conductor

T denotes time

5 0
3 years ago
The average body temperature of all healthy adults is 98.6 F. A doctor takes a random sample of 100 healthy adults and records t
Yuliya22 [10]

Answer:

Explained below.

Step-by-step explanation:

A parameter is a valuable element of statistical analysis. It denotes the characteristics that are used to define a given population. It is used to define a particular attribute of the population. For instance, population mean, population standard deviation, population proportion and so on.

  • The parameter of interest is the average body temperature of all healthy adults, <em>μ</em> = 98.6°F.

While making a statistical conclusion about the population under study, the parameter value is unknown. This is because it would not be possible to gather data from every single member of the population. So a sample is selected from the population to derive a conclusion about the parameter.

A statistic is the value of the characteristics that are computed using this sample. For instance, sample mean, sample standard deviation, sample proportion and so on.

  • The statistic is the average body temperature of 100 randoly selected healthy adults, \bar x=98.2^{o}F.
4 0
3 years ago
Priya can bike 300 meters in 20 seconds. How many meters can she bike in 10 seconds?
Anettt [7]
Priya can bike 150 m in 10 seconds
4 0
3 years ago
Read 2 more answers
Park View Apartments has 2 buildings. Each building has 3 floors. Each floor has 16 windows What is the total number of windows
IRISSAK [1]

Answer:

96

Step-by-step explanation:

2x3= 6

6x16= 96

5 0
3 years ago
Enter the value of p so the expression 5/6-1/3n is equivalent to p(5-2n)?
inna [77]
P needs to be something that is multiplied through 5-2n to equal 5/6-1/3n.  Since you see that there is a 5 of somesort in both equations an easy place to start is simply making p=1/6.  Once you do that then 5*1/6=5/6 so the first part is okay. Then 2n*1/6=2n/6 which is able to be reduced to n/3.
Based on this it is clear that p should equal 1/6.

4 0
3 years ago
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