1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alona [7]
3 years ago
7

Consider the set of points defined by z = 5 cos(theta) + 3i sin(theta).

Mathematics
1 answer:
vitfil [10]3 years ago
4 0

Answer:

This is an ellipse.

Step-by-step explanation:

z=5cos(\theta)+3isin(\theta)

Applying the angle values in intervals of right angles (90°), the resulting set of values for z are:

\theta = 0,90,180,270,360

z=5,3i,-5,-3i,5 (again)

If you look at the plot, you will observe how these values represent points in the xy plain. All of them belong to either the x or the y axis.

The resulting figure for the whole set of values of \theta is in fact an ellipse.

You might be interested in
Negative 4,200 divided by 300
Pachacha [2.7K]

Answer:

-14

Step-by-step explanation:

5 0
2 years ago
2<br> What is the slope of the line y = 3-2/3x
Scrat [10]

Answer:

the slope is -3

Step-by-step explanation:

5 0
3 years ago
Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes
lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 680 trials

            r = number of success  

           p = probability of success which in our question is 0.55

So, it means X <em>~ </em>Binom(n=680, p=0.55)

<em><u>Now, we have to find the mean and standard deviation of the given binomial distribution.</u></em>

  • Mean of Binomial Distribution is given by;

                    E(X) = n \times p

       So, E(X) = 680 \times 0.55 = 374

  • Standard deviation of Binomial Distribution is given by;

                   S.D.(X) = \sqrt{n \times p \times (1-p)}

                               = \sqrt{680 \times 0.55 \times (1-0.55)}

                               = \sqrt{680 \times 0.55 \times 0.45} = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0
3 years ago
Which of the following systems of linear equations has no solution?
yanalaym [24]
None of the above!!!!!!
8 0
3 years ago
Read 2 more answers
Solution <br> 2 &gt; x/3 -1
Dmitry_Shevchenko [17]

Answer:

X < 9

Step-by-step explanation:

Add 1 to both sides

3 > x/3

multiply by 3 to get x by itself

9 > x

or

x < 9

6 0
3 years ago
Read 2 more answers
Other questions:
  • F(x) = 2x – 1 and g(x) = x2 – 3x – 2, find (f + g)(x)
    9·2 answers
  • A 9 foot ladder is leaning on a tree. The bottom of the ladder on the ground at a distance of 4 ft from the base of the tree. Th
    10·1 answer
  • HEEELLLPPPPP Olaf has 250 files saved on an external hard drive. Of those files, 12% are photos.
    10·2 answers
  • Which of the following terms correctly describe the object below?<br> Check all that apply.
    10·1 answer
  • Untitled Question *
    9·1 answer
  • Jill got 36 out of 40 questions correct on her test. What percent of her test did she get correct?
    9·2 answers
  • HELP ME PLEASE I NEED HELP
    6·1 answer
  • Tony can type at a constant rate of 110 words every 2 minutes. A. Write an equation for the number of words, W, Tony can type in
    11·1 answer
  • 3y=2x+15<br> Solve the equation for the y variable?<br> Please help me out on this !!!
    9·2 answers
  • Calculate the interest after one year sally saves $100 in a savings account earning 3% interest
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!