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
Murljashka [212]
3 years ago
13

Even if I have use bidmas I'm still confuse with this equation (-7i)(2+i)+(2i)(-7i)

Mathematics
1 answer:
zheka24 [161]3 years ago
5 0
Assuming "i" is an imaginary unit:
(-7i)(2+i)+(2i)(-7i)=\\
-14i+7+14=\\
21-14i
You might be interested in
Darsh’s simulated samples:
dusya [7]

Answer:

sample of 100 students

Step-by-step explanation:

The larger the sampl the more diverse your answers/ data will be.

4 0
3 years ago
Read 2 more answers
2. A dice is rolled. A card is drawn from a deck of face cards (i.e. only Jack, Queen, King of each suit). A coin is flipped. a)
LekaFEV [45]
When you roll and even number, the probability of winning is 3/6 or 1/2.
When you want to draw a heart:
The sample space is 12. That is 3 faces and 4 suits. There are 4 hearts in this deck. The probability you get a heart is 4/12 or 1/3. 
When you want to toss a tail: 
Sample<span> space is 2, hea</span>d and tail. You do not win if you get a heads. The probability is 1/2. The probability of winning is 1/2 * 1/3 * 1/2 = 1/12 Then the probability of losing is 1-1/12 = 11/12
8 0
3 years ago
The volleyball team raised $350 from its fundraiser. It wants to buy jerseys and volleyballs. The jerseys cost $12 each, and the
uysha [10]
You have to set up an equation so 12 x 22 + 15v=
5 0
3 years ago
Read 2 more answers
What is the volume of a square pyramid if the perimeter of the base is 44 in and the height is 19 in.? Round to the nearest tent
Olin [163]

Answer:

766.3

Step-by-step explanation:

8 0
3 years ago
Geometry grade 10 how do we see the adjecent side ​
RideAnS [48]

Answer: These sides are labeled in relation to an angle. The opposite side is across from a given angle. The adjacent side is the non-hypotenuse side that is next to a given angle.

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • 4X = 44<br> What is X?<br> sorry I bad at this
    13·1 answer
  • Solve: 6yd. 9ft. 4in × 2
    10·2 answers
  • A company manufacturing company small solid plastic cubes .They use the expression s3 to find the volume of plastic needed to ma
    6·1 answer
  • A car brought for 13000 deprecitates at 15 percent per year find value of car after 5 years
    9·1 answer
  • An x-method chart shows the product a c at the top of x and b at the bottom of x. Above the chart is the expression a x squared
    7·2 answers
  • Solve the equation.<br><br> 3(x−9)=30
    7·2 answers
  • A national organization sets out to investigate the change in prevalence of HIV since the last census in 2010. A total of 4,706
    9·1 answer
  • Which one is the even number:<br> 116,318,162,230,180,155
    5·1 answer
  • HELP ME PLEASE BRAINIEST IF CORRECT BEEN STUCK ON THIS FOR HOURS AND THIS IS DUE AT 11:59pm and it is 11:46pm!!!!
    15·2 answers
  • The net of a square pyramid is shown below:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!