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
Shtirlitz [24]
3 years ago
11

Simplify the given expression below: (7-3i)•(2-i)

Mathematics
1 answer:
Dimas [21]3 years ago
5 0

when multiplying two binomials together we use the F.O.I.L. method:

First

Outer

Inner

Last

(7-3i)(2-i)

First: 7 * 2 ..... Outter: 7 * -i .... Inner: -3i * 2 ...... Last: -3i * -i

First: 14 ...... Outter= -7i ..... Inner: -6i .... Last: 3i^2

putting this together we get 14-7i-6i+2i^2

We combine like terms and end up with 2i^2-13i+14

You might be interested in
Please help me out on this !
vichka [17]
All to red 13:8
Green to all 5:13
8 0
3 years ago
What is the volume of a sphere with a radius of 8 m, rounded to the nearest tenth of a cubic meter?
zlopas [31]
<h3>given:</h3>

radius= 8 m

<h3>to find:</h3>

the volume of the sphere

<h3>solution:</h3>

v =  \frac{4}{3} \pi {r}^{3}

v =  \frac{4}{3}  \times \pi \times  {8}^{3}

v = 2144.66058 \:  {m}^{3}

v = 2144.7 \:  {m}^{3}

<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>volume</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>given</u><u> </u><u>sphere</u><u> </u><u>is</u><u> </u><u>2144.7</u><u> </u><u>cubic</u><u> </u><u>meters</u><u>.</u>

6 0
2 years ago
Write the decimal for 1/8 explain why this decimal is called a terminating decimal
Hitman42 [59]

Answer:Your answer should be 0.125 or .125

Step-by-step explanation:Decimals can be negative or positive. In this case it will be negative.

Find an equivalent fraction with a denominator of a power of 10.

In this case we will use  

1000

7 0
3 years ago
Read 2 more answers
Why should you place a cover slip over your specimen at a 45 degree angle when making a wet mount slide?
melamori03 [73]
<span>Applying the cover slip at an angle (instead of dropping it down flat on the specimen) pushes the air to the side and therefore minimizes the risk of air bubbles.</span>
5 0
3 years ago
The length of a rectangle is 3 times its width. What is the length of the rectangle if the area is 48 square centimeters?
densk [106]

Answer:

length=12

Step-by-step explanation:

length=3w

A=48

48=3w(w)

48=3w^2

16=w^2

W=4

48/4=12

length=12

4 0
3 years ago
Other questions:
  • A student ran out of time on a multiple choice exam and randomly guessed the answers for 2 problems. Each problem had 5 answer c
    5·1 answer
  • PLEASE HELp PLEASE
    7·2 answers
  • Is 4.2837193205.............. a natural number , rational number, integer, irrational number, or a real number
    6·2 answers
  • What is this in vertex form
    6·1 answer
  • What is the number 731000934030 written in standard form
    9·2 answers
  • Q31 George hiked from the top of a hill to the valley floor. The elevation at the top of the hill is
    8·1 answer
  • If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second.
    13·1 answer
  • Pleeeease help me do this assignment it would mean a lot! Thanks
    14·1 answer
  • What numbers form a triangle
    10·1 answer
  • If a carpenter has ⅜ a piece of wood and wants to cut it into 1/16 pieces to make shelves. How many shelves can he make?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!