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
wariber [46]
3 years ago
8

What is the difference of -9 + 2i and 4 - 6i?

Mathematics
1 answer:
MAVERICK [17]3 years ago
8 0

Answer:

-13-4i

Step-by-step explanation:

You might be interested in
A set of 6 art books costs $241.25. A copy of one of the books, bought separately, costs $38.25. About how much less is the cost
kumpel [21]

The cost of the 6 books if you buy the set is $11.75 less.

The given parameters:

  • <em>Total number of books, n = 6</em>
  • <em>Cost of the books, c = $241.25</em>
  • <em>Cost of one book, = $38.25</em>

The total cost of the 6 books when bought separately is calculated as follows;

Cost = 6 x $38.25

Cost = $229.5

The difference in price is calculated as follows;

= $241.25 - $229.5

= $11.75

Thus, the cost of the 6 books if you buy the set is $11.75 less.

Learn more about cost price here: brainly.com/question/19104371

3 0
2 years ago
Michael is 4 times as old as brandon and is also 27 years older than brandon<br> how old is brandon?
Komok [63]

Let the age of Brandon be x.

Therefore the age of Michael is 4x

Also the age of Michael is 27+x

So

4x=27+x

3x=27

X=9

Brandon age is 9years while Michael's age is 36

6 0
2 years ago
Solve each of the following quadratic equations<br><br> 3x=0.5x^2<br><br><br> 0=5x^2-2x+6
UNO [17]

<u>Question 1</u>

<u />3x=0.5x^{2}\\\\6x=x^{2} \\ \\ x^{2}-6x=0 \\ \\ x(x-6)=0 \\ \\ \boxed{x=0, 6}

<u>Question 2</u>

<u />0=5x^{2}-2x+6 \\ \\ x=\frac{2 \pm \sqrt{(-2)^{2}-4(5)(6)}}{2} \\ \\ x=\frac{2 \pm \sqrt{-116}}{10} \\ \\ x=\frac{2 \pm 2i\sqrt{29}}{10} \\ \\ \boxed{x=\frac{1 \pm i\sqrt{29}}{5}}

6 0
2 years ago
assuming the growth rate stays constant at 1.2%, how many doublings would take place in a 500- year period?
Juliette [100K]

9514 1404 393

Answer:

  8.6

Step-by-step explanation:

The growth factor per year is 1.012, so in 500 years is ...

  1.012^500

The number of doublings is the solution to ...

  2^n = 1.012^500

Taking logarithms, we have ...

  n·log(2) = 500·log(1.012)

  n = 500·log(1.012)/log(2) ≈ 8.6046

About 8.6 doublings will take place in 500 years.

3 0
2 years ago
What is an equation of the line that passes through (-2,3) and is parallel to y=5x + 4.Give your answer in slope intercept form
9966 [12]

Answer:

y= 5x+13

Step-by-step explanation:

<u>Slope- intercept form</u>

y= mx +b, where m is the gradient and b is the y-intercept.

Parallel lines have the same gradient.

y= 5x +4

Gradient of given line= 5

Thus, gradient of line= 5

Subst. m=5 into the equation.

y= 5x +b

To find the value of b, substitute a coordinate

When x= -2, y=3,

3= 5(-2) +b

3= -10 +b

b= 3 +10 <em>(</em><em>+</em><em>1</em><em>0</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

b= 13

Thus, the equation of the line is y= 5x +13.

8 0
3 years ago
Other questions:
  • 0.9(x-20)=830 solve the equation
    6·1 answer
  • Write an explicit formula that represents the geometric sequence -2,8,-32,128
    6·1 answer
  • If the mean of 4,8 and x is 7 what is the value of x
    11·1 answer
  • Calculate the area of this figure to the nearest hundredth. Use 3.14 to approximate pi
    13·1 answer
  • What is 3.75x-5-8.75+4.5+0.5 I need help ASAP it is a simplify the expression question
    5·1 answer
  • The cooking time for a mini-loaf of bread is 5 minutes longer than half the time it takes to bake a regular-sized loaf of bread.
    12·1 answer
  • Help please !!!!!!!!!!
    8·1 answer
  • HELP PLEASE NO LINKS I WILL GIVE BRAINLY. ALL QUESTIONS PLEASE ​
    5·2 answers
  • I NEED HELP ON PART B PLEASE WILL GIVE BRAINLIEST~!
    8·1 answer
  • Find the volume of this sphere.<br> Use 3 for pie.<br> V≈ [?]cm³<br> V = πr³<br> 10 cm
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!