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
Alexeev081 [22]
3 years ago
6

Which expression is equivalent to (7 + 2i)(-3 - 4i)?

Mathematics
1 answer:
malfutka [58]3 years ago
5 0
B -13 -34i

(7 + 2i)(-3 - 4i)
Take the 7 then times it buy the second bracket 7x(-3-4i) then take 2i from the first bracket and times it with the second bracket 2ix (-3-4i)

Then keep simplifying
You might be interested in
* PLEASE ANSWER TY!! * If BC is tangent to circle O and OB is a radius, what kind of triangle is OBC?
ipn [44]

Answer:

Right Triangle

Step-by-step explanation:

BC is tangent to circle O, and since radius OB is perpendicular to this tangent, then the triangle must have a right angles in it, making it a right triangle.

The triangle could also be scalene, but that is not for sure, meaning it is primarily a right triangle.

4 0
3 years ago
Someone help me with my homework
Nutka1998 [239]

Answer:


Step-by-step explanation:

the second one is correct. the first one is wrong because shape C also has those angles. the third one is wrong because shape C also has no perpendicular sides. the fourth one is wrong because shape C also has 2 pairs of angles with the same measure.

5 0
3 years ago
Read 2 more answers
Original price: $66; Markup: 20% The retail price is ?
andrezito [222]

Answer:

$79.20

Step-by-step explanation:

20% of $66 = $13.20

$66 + $13.20 = $79.20

4 0
3 years ago
Read 2 more answers
What is 1 5/8 rounded to the nearest half A.1 B.1 1/2 C.2 D.2 1/2
Ipatiy [6.2K]
1 1/2 I think is the answer
4 0
3 years ago
Read 2 more answers
At the building site there are 16 pallets with sacks of cement the total weight of all the pallets and cement is 4856 pounds eac
inysia [295]
The first thing we must do for this case is to define a variable.
 We have then:
 x: weight of each pallet with cement
 We then have the following equation:
 16x = 4856
 Clearing x we have:
 x = (4856) / (16)
 x = 303.5 punds
 Answer:
 
each pallet with cement weigh:
 
x = 303.5 punds
6 0
3 years ago
Other questions:
  • What's the square rute of 0.81
    5·2 answers
  • A researcher wants to run a 2 x 3 mixed factorial design. The first factor is the within-subjects. The second factor is the betw
    10·1 answer
  • Mrs. Tyner drove about 150 km east from Pearland, to Houston, Texas. She
    15·1 answer
  • Which strategie would eliminate a variable in the system of equations? −x+6y=8 7x−y=−2 ​
    14·1 answer
  • Which values are solutions to the inequality below? <br><br>Check all that apply. &gt;4
    11·2 answers
  • john collecrs cards. he collects 44 red, 67 blue cards, and 52 yellow. he puts 9 in protective sheets how many full sheets does
    6·1 answer
  • Ria can paint a room in 4 hours. Destiny can paint the same room in 6 hours. How long would it take Ria and Destiny to paint the
    8·2 answers
  • 5. (0,0) and (-2,-8) Slope=_ Equation=​
    9·1 answer
  • 9. Peyton is collecting data on the lunch habits of students at Hyattsville Middle School. In one class, 14 students bring lunch
    13·1 answer
  • Write the slope-intercept form of the equation of a line parallel to y=-2/3x+12 that has a y-intercept of -13 (step by step)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!