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
dsp73
2 years ago
14

PLEASE PLEASE HELP!!!!

Mathematics
1 answer:
Usimov [2.4K]2 years ago
6 0

Answer:

B

Step-by-step explanation:

\cos( \alpha )  +  i\sin( \alpha )  =  {e}^{i (\alpha   + 2\pi)}

z = 3(cos π/2 + i sin π/2) =→

3 {e}^{i \frac{\pi}{2} }

z⁷ =

{3}^{7}  {e}^{i \frac{7\pi}{2} }  =   {3}^{7}  {e}^{i \frac{(7 - 4)\pi}{2} }  =  {3}^{7}  {e}^{i \frac{3\pi}{2} }  =  {3}^{7} ( \cos( \frac{3\pi}{2} )  + i \sin( \frac{3\pi}{2} ) ) = 2187( \cos( \frac{3\pi}{2} )  + i \sin( \frac{3\pi}{2} ) )

You might be interested in
Please help!!!! i need it in this instant!!!
Feliz [49]

Answer: 14

Step-by-step explanation:

If they hit the ball 4/8 times, that equals 1/2, so we just multiply 1/2 (or 0.5) by 28 and you get 14 :)

8 0
3 years ago
Read 2 more answers
Find the nth term for the sequence:<br> 16, 43, 88, 151, 232<br> Un =
Anastasy [175]
The answer is An=9n^2+7
8 0
2 years ago
Which number will make the two fractions equivalent 42/50 84/?
Alenkinab [10]

Answer:

Step-by-step explanation:

84 is twice 42

Multiply the numerator and the denominator of 42/50 by 2:

42/50 = (42×2)/(50×2) = 84/100

5 0
3 years ago
Read 2 more answers
This is the same question as last time just not blurry.
AveGali [126]
4. proportional
5. proportional
6. I don't know what functions are
7. It has a straight line and distance is proportional to time.
8 0
3 years ago
Read 2 more answers
48 is 9 less than 3 times a number. What is the number?
Kamila [148]
19 x 3 = 57 57 - 9 = 48 Your answer is 19.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A youth group is setting up camp. Rain is predicted, so the campers decide to build a fly, or rain cover, over their tent. The f
    11·1 answer
  • There are 451 students at Highland Jr. High. If there are 135 more boys than girls, write and solve an equation to show how many
    6·2 answers
  • I need help quick with this question
    10·1 answer
  • How do the X- and Y-coordinates change when a figure is translated right a units and down b units?
    11·2 answers
  • At 2 PM McDonald’s sold 12 big bags and two sodas for a total of 32 McDonald’s took and 16 at 3 PM I selling four big Macs and t
    5·1 answer
  • Plz help me I begg plzzzzz
    12·2 answers
  • Can orthocentre of an obtuse triangle lie below the triangle or it has to be above the triangle?
    10·1 answer
  • A curb is 4 inches high. The ramp from the sidewalk yo the street follows the same guidelines as other Ramos (no more than 4.8 d
    14·1 answer
  • Jude types 876 characters in 6 minutes. What is her typing rate in characters per minute?
    5·1 answer
  • Hector made a scale drawing of the front of a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!