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
Anna007 [38]
3 years ago
5

Can somebody help me

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0

cis(x)=\cos x+i\sin x\\\\cis15^o=\cos15^o+i\sin15^o\\\\\cos15^o=\dfrac{\sqrt6+\sqrt2}{4};\ \sin15^o=\dfrac{\sqrt6-\sqrt2}{4}\\\\\text{therefore}\\\\7cis15^o=7\left(\cos15^o+i\sin15^o\right)=7\cos15^o+7i\sin15^o\\\\=7\left(\dfrac{\sqrt6+\sqrt2}{4}\right)+7\left(\dfrac{\sqrt6-\sqrt2}{4}\right)i

You might be interested in
Please help i need it
vichka [17]

Answer:

x = 100

Step-by-step explanation:

The area of the left square is 3600

A =s^2

3600 = s^2

Taking the square root of each side

60 =s

The area of the right square is 1600

A =s^2

1600 = s^2

Taking the square root of each side

40 =s

Adding the lengths

60+40 =x

100 =x

3 0
3 years ago
How do you find a rate of a number
KATRIN_1 [288]

To determine the rate of a number do the following steps:


   Multiply the number by the percent (e.g. 87 * 68 = 5916)

   Divide the answer by 100 (Move decimal point two places to the left) (e.g. 5916/100 = 59.16)

   Round to the desired precision (e.g. 59.16 rounded to the nearest whole number = 59)

8 0
3 years ago
Read 2 more answers
a set contains the numbers 0,6,12, and 15 Two different numbers are selected randomly from this set. What is the probability tha
steposvetlana [31]

Answer:

the probability is 5 i think

Step-by-step explanation:

4 0
3 years ago
(28 points) In the drawing, a regular polygon is partially covered by a rectangle. what is the number of sides of this polygon?
alexira [117]

Answer:

c:8

Step-by-step explanation:

✔

3 0
3 years ago
Read 2 more answers
PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!
Zepler [3.9K]

Answer:

7/20 is the scale factor

Step-by-step explanation:

We can see that Hexagon JKLMNO is bigger than Hexagon  PQRSTU. This means that the scale factor is less than one.

LK is similar to QR.

QR/LK

7/20 is the scale factor.

5 0
3 years ago
Other questions:
  • Consider these four data sets. Set A: {32, 12, 24, 46, 18, 22, 14} Set B: {4, 12, 11, 14, 11, 5, 12, 13, 18, 14} Set C: {5, 4, 9
    6·2 answers
  • What is the domain of the function?
    10·1 answer
  • 4. Nicky rode in 6 races this week She won one-third of her races.<br> How many races did she win?
    7·2 answers
  • Bill says that he can add 23 and 40 without regrouping. Is bill correct? How do you know?
    11·2 answers
  • Anusha is walking on a hiking trail at a rate of Three-fourths miles in One-fourth hour. At this rate, how far will Anusha walk
    9·1 answer
  • F(x)= √x-5. find f-2
    14·1 answer
  • Given the vectors w = &lt;-5, 3&gt; and z = &lt;1, 4&gt;, find the results of the vector subtractions. -w − z =
    10·1 answer
  • 11. A gift store owner used 9 rolls of wrapping paper to
    8·2 answers
  • The time, T (seconds) it takes for a pot of water to boil is inversely proportional to the cooker setting, H, applied to the pot
    7·1 answer
  • Help PLS!!! DONT MAKE ANY CAP PLEASE!! I don't understand this problem.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!