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
Rzqust [24]
2 years ago
6

Find the product of these complex numbers (8+6i)(-5+7i)

Mathematics
1 answer:
spayn [35]2 years ago
3 0

Answer:

Step-by-step explanation:

= -40 + 56i -30i +42i

= 68i - 40

You might be interested in
Solve −(3x − 2) = −4(x + 1) − 4.
Stella [2.4K]
-(3x-2)=-4(x+1)-4
-3x+2=-4x-4-4
-3x+4x=-4-4-2
x=-10
3 0
3 years ago
Read 2 more answers
Jeff gave 1/4 of a sum of money to his wife. Then he divided the remainder equally among his 4 children.
Semenov [28]

Answer:

A) The fraction of sum of money did each child receive is \frac{3 x}{16}

B) The sum of money did Jeff have $ 3200

Step-by-step explanation:

Given as :

Let The sum of money did Jeff have = $ x

The fraction of money did Jeff's wife get = \frac{1}{4} of $ x

The remaining money Jeff will have = $ x - \frac{1}{4} of $ x

I.e The remaining money Jeff will have = \frac{4 x - x}{4}

                                                                = \frac{3 x}{4}

A ) The remaining amount of money is divided equally among 4 children

So, The fraction of sum of money did each child receive = \frac{\frac{3 x}{4}}{4}

I.e The fraction of sum of money did each child receive =  \frac{3 x}{16}

B ) If each child will receive $ 600

∴,  \frac{3 x}{16} = $ 600

Or, 3 x = $ 600 × 16

Or, 3 x = $ 9600

∴    x = \frac{9600}{3}

I.e  x = $ 3200

So, The sum of money did Jeff have $ 3200  

Hence ,

A) The fraction of sum of money did each child receive is \frac{3 x}{16}

B) The sum of money did Jeff have $ 3200   Answer

8 0
3 years ago
Factorise fully x^3-x
MA_775_DIABLO [31]

Answer:

x(x+1)(x-1)

Step-by-step explanation:

We see that the two terms share an x, so we can pull that out:

x^3-x=x(x^2-1)

Now notice that we have a difference of squares (x^2-1). Given a difference of squares, a^2-b^2, this can always be factored into (a+b)(a-b). We can use this in this case: x^2-1=(x+1)(x-1).

So, our final factorized form is: x(x+1)(x-1).

Hope this helps!

3 0
3 years ago
I NEED HHELP ASAP STOP SENDING ME LINK
Ymorist [56]

Answer:

The answer is B

Step-by-step explanation:

hope that helps

5 0
3 years ago
Read 2 more answers
The teachers’ editions of a statistics textbook sell for $150 each, and students’ editions of the book sell for $50 each. Which
Novay_Z [31]

Answer:

(300 + 50x)/(2 + x)

Step-by-step explanation:

Let the cost of teachers' edition books be t

Let the cost of students' edition books be s

So t = 150; s = 50

Then the total cost of 2 teachers' editions and x students' editions is 2t + sx = 2 × 150 + 50x = 300 + 50x.

The total number of books is 2 + x.

So the average cost per book is (300 + 50x)/(2 + x)

7 0
3 years ago
Read 2 more answers
Other questions:
  • If 4 times a certain number, increased by 8 is 85, what is the number?
    13·1 answer
  • The book company has 5 liters of bug spray on Tuesday they used to .7 L of it how many millimeters of bug spray do they have lef
    8·1 answer
  • Zen spent $255 on a bag and a belt. She wanted to buy another
    12·1 answer
  • Select the correct answer from each drop down menu.
    8·1 answer
  • Use 1% or 10% to estimate 93% of 149<br><br> A. 169.5<br> B. 13.5<br> C. 112<br> D. 135
    6·1 answer
  • Find the value of X or Y so that the line through the points has the given slope. (X, 0) and (4,1); slope: 1/5
    6·1 answer
  • Estimate 1.9 x 4.4
    10·1 answer
  • Which of the following expressions are linear? Select all that apply.
    11·2 answers
  • Mike put 210 baseballs into 7 trash bins. He put the same number of baseballs in each bin. He took 2 trash bins of baseballs to
    12·1 answer
  • Customers can pick their own pumpkins at The Great Pumpkin Patch. They
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!