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
Xelga [282]
3 years ago
5

Which complex number is equivalent to the given expression? (-45 - 22i) + 2(5 - 3i)(5 + 3i)

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
4 0

Hint:

Use distributive property, then combine like terms.

I think you've got it from there :)

If you need more help, just comment on this.

If you still are confused, then see below.

Answer:

-45-22i+(10-15i)(5+3i)

-5-22i+50+30i-75i-45i

112i-45

You might be interested in
Write the equation of a line that goes through the points (-7,10) and (1,4)
Bad White [126]
I’m pretty sure the answer is y=3/4x-13/4
8 0
3 years ago
Read 2 more answers
Nissan Appliances bought two dozen camcorders at a total cost of $3,816. The markup on the camcorders is 25% of the selling pric
Lerok [7]
So first you do 3,816 divided by 12 , because you need to find how much for 1 so then you can find out 25% off of 1. To check your work put down 318 times 12 to prove that you're right. Which would be 318 times 25 = 79.5. If you use a calculator it won't have the decimals ( if you just do the numbers ), but the rest is above.
4 0
2 years ago
Read 2 more answers
Find the area of the shape.<br> 19 yd<br> 5 yd<br> 6 yd<br> 9 yd<br> The area is
finlep [7]

Answer:

84

Step-by-step explanation:

6 0
2 years ago
Kristen has 64 coins in her bank. She has $9.25 in dimes and quarters. How many dimes and quarters does she have?
Stella [2.4K]
D= # of dimes
q= # of quarters

QUANTITY EQUATION:
d + q= 64

COST EQUATION:
0.10d + 0.25q= $9.25


STEP 1:
multiply quantity equation by -0.10 to be able to eliminate the d term in step 2

(-0.10)(d + q)= (-0.10)(64)
-0.10d - 0.10q= -6.40


STEP 2:
add equation from step 1 to cost equation to eliminate the d term and solve for q

Add
0.10d + 0.25q= $9.25
-0.10d - 0.10q= -6.40

0.15q= 2.85
divide both sides by 0.15

q= 19 quarters


STEP 3:
substitute q value in step 2 into either original equation to find d value

d + q= 64

d + 19= 64
subtract 19 from both sides

d= 45 dimes


CHECK:
0.10d + 0.25q= $9.25
0.10(45) + 0.25(19)= 9.25
4.50 + 4.75= 9.25
9.25= 9.25


ANSWER: There are 45 dimes and 19 quarters.

Hope this helps! :)
7 0
3 years ago
The effect of wearing different types of running shoes on the time it takes to complete a race is being studied in experiment. w
lana [24]

Answer:

A. Weather conditions

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Is (-2,3) a solution of each system
    12·1 answer
  • 2 3/4 pound of veggie burgers for $8.80 what is the unit price per pound of veggie burgers
    8·1 answer
  • What is a - b over 2?
    12·1 answer
  • The slope of a line is -3 and the y intercept is (0,4). What’s is the equation of the line in slope intercept form
    11·1 answer
  • Identify the place value of digit 9 in each given number.
    15·1 answer
  • Find the volume of the rectangular prism , in cubic centimeters please answer
    15·1 answer
  • 130 3x + 67 degrees<br>please please please please please please please help​
    12·2 answers
  • Please help geometry
    9·1 answer
  • What percent of 925is37
    12·1 answer
  • Thirty percent of the beads in a bag are blue. One bead is randomly chosen and replaced. Then a second bead is chosen. What is t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!