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
Lady_Fox [76]
3 years ago
7

3) WILL MARK BRAINLIEST + 10 POINTS!!!!!! :)

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0
 
This is really a long way to go to make something complicated
out of something simple.  The last choice does the job.

cos(180)  =  -1
sin(180)  =   0

So       4 [cos(180) + i sin(180) ]

       =   4 [ -1      +  i (0) ]

       =     -4     yay!
You might be interested in
What are the solutions to the equation x2 - 8x = 10
mojhsa [17]

Answer:

x = 4 ±√26

Step-by-step explanation:

Please write this as x^2 - 8x = 10, or x^2 - 8x - 10 = 0.  " ^ " indicates exponentiation.

Let's complete the square:

x^2 - 8 x can be rewritten as

x^2 - 8x + 16 - 16, and so

x^2 - 8x = 10 becomes x^2 - 8x + 16 - 16 - 10 = 0, or

                                         (x - 4)^2 = 26

Taking the square root of both sides, we get:

x - 4 = ±√26, or

x = 4 ±√26

5 0
3 years ago
Which operation gives a result of 1.39?
weeeeeb [17]
The sum of 4.35 and -5.66
5 0
3 years ago
Read 2 more answers
Divide a24 - a18 + a12 by a6.
AnnZ [28]
24a-18a+12a is equal to 18a
hence, divide it by 6a
so you get 3a :)
3 0
3 years ago
a polynomial has one quadratic factor and 3 linear factors. One of the linear factors has multiplicity two. What is the degree o
snow_lady [41]

Answer:

5

Step-by-step explanation:

a polynomial has one quadratic factor and 3 linear factors. One of the linear factors has multiplicity two. What is the degree of the polynomial

A polynomial with one quadratic obtains the forms ( ax² +bx +c ) with 3 linear factors.

Suppose the three linear fractions are :

(x- P) (x-Q) (x- R)

∴

The polynomial = ( ax² +bx +c )(x- P) (x-Q) (x- R)

By factorization, the highest degree of the polynomial = 5

8 0
3 years ago
The probability that John will drive to school is 0.31, the probability that he will ride with friends is 0.12, and the probabil
garri49 [273]

Answer:

P(company) = P(ride with friends) + P(with parents) = .23 + .4 = .63 0r 63%

Step-by-step explanation:

The 3 different case scenarios are independent of one another:.37 + .23 + .4 = 1

P of two of them occurring is found by adding their individual Probabilities

8 0
3 years ago
Other questions:
  • If you know this help me six grade work I have a lot of homework please show your work
    14·1 answer
  • Write the fraction 28/21 in its simplest
    14·1 answer
  • There are only HB and F type pencils in the store. The ratio of the number of HB to F is 7 : 3. If there are 15F type pencils, h
    13·1 answer
  • HELP!!!!!
    6·2 answers
  • Please help with this math question no one bothered to help me plzz :(
    8·1 answer
  • Write an equation of the line that is parallel to the given line and passes through the given point.
    7·1 answer
  • Instructions: Determine whether the following polygons are
    11·1 answer
  • X+5y=20<br> x+3y=14<br><br> x=<br> y=
    10·2 answers
  • ANSWER QUICK BESTIES!! ty
    14·2 answers
  • Identify the initial value, the growth or decay factor, and the growth or decay rate of the exponential function below. f(x) = 2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!