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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} ) )

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Please Help Me ;-;
ANTONII [103]

slope  = (y2-y1)/(x2-x1)

      =  (2--1)/(5-1)

      = (2+1)/(4)

       =3/4


The point slope from of a line is

y-y1 = m(x-x1)

y--1 = 3/4 (x-1)

y+1 = 3/4 (x-1)

3 0
2 years ago
When a number is raised to the 6th power, it equals 90. What is this number, and write it using the root symbol ...?
balandron [24]
6√90 = <span>2.11693286302546
So, this number to the power of six equals 90. 
</span><span>2.11693286302546^6 = 90
</span>
The correct answer is <span>2.11693286302546. </span>
6 0
3 years ago
Take the following numbers and calculate the mean, median and mode. 75, 65, 70, 70, 55, 40, 55, 70, 65
emmainna [20.7K]

1. mean

To solve for mean, add all the numbers, and divide by the amount of numbers there is.

(75 + 65 + 70 + 70 + 55 + 40 + 55 + 70 + 65)/9 = 565/9 = 62 7/9 (a. 62.8)

2. Median

To solve for median, reorder all numbers from least to greatest, and the middle number is your median.

40, 55, 55, 65, 65, 70, 70 , 70, 75

Middle number is bolded

40, 55, 55, 65, 65, 70, 70, 70, 75

(b. 65)

3. Mode

To solve for mode, find out which number shows up the most.

(c. 70) shows up once more than the next number that has the most (55 & 65, which both have 2)

~

4 0
3 years ago
Find the area of a rectangle whose length is 5 ½ feet long and 1 3/4 feet wide.
podryga [215]

Answer:

11/2 x 7/4 = 77/8 = 9 5/8

Step-by-step explanation:

7 0
2 years ago
50 points
Lilit [14]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ We can assume that the roles will be filled in order

To calculate this, figure out the number of possible candidates for each role

For role 1, there are 9 possible candidates

For role 2, there are 8 possible candidates

For role 3, there are 7 possible candidates

For role 4, there are 6 possible candidates

For role 5, there are 5 possible candidates

Simply multiply all these values together:

9 x 8 x 7 x 6 x 5 = 15120

Therefore, your answer would be B. 15,120

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
3 years ago
Read 2 more answers
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