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
ollegr [7]
2 years ago
10

Simplify (8-7i)(-6+i)

Mathematics
1 answer:
Mrac [35]2 years ago
6 0

Answer:

50 i - 41

Step-by-step explanation:

Simplify the following:

(-7 i + 8) (i - 6)

(8 - 7 i) (i - 6) = (8) (-6) + (8) (i) + (-7 i) (-6) + (-7 i) (i):

-6×8 + 8 i - 6 (-7 i) - 7 i×i

-6×8 = -48:

-48 + 8 i - 7 i (-6) - 7 i×i

-7 (-6) = 42:

-48 + 8 i + 42 i - 7 i×i

-7 i×i = -7 i^2:

-48 + 8 i + 42 i + -7 i^2

i^2 = -1:

-48 + 8 i + 42 i - 7-1

-7 (-1) = 7:

-48 + 8 i + 42 i + 7

-48 + 8 i + 42 i + 7 = (8 i + 42 i) + (7 - 48) = -41 + 50 i:

Answer: 50 i - 41

You might be interested in
Suppose that a point moves along some unknown curve y = f(x) in such a way that, at
spayn [35]

Answer:

f(x) = x³/3 - 5/3

Step-by-step explanation:

To get the equation of the curve, integrate the slope

f(x) = integral of x²

= (x^(2+1))/3 + c

f(x) = x³/3 + c

To find c, use the given point

1 = 2³/3 + c

c = 1 - 8/3 = -5/3

f(x) = x³/3 - 5/3

8 0
3 years ago
Jess wants to spend less than
Wewaii [24]

The maximum number of packs Jess can buy is 3 packs.

8 0
2 years ago
The world’s population is currently estimated at 7,125,000,000. What is this to the nearest billion? billion
Oksana_A [137]

Answer:

7,000,000,000

Step-by-step explanation:

since the closest number is less than 5 (1<5) you round down making the nearest billion 7

8 0
3 years ago
Read 2 more answers
Greta had $2,992 in a savings account with simple interest. She had opened the account with $2,200 exactly 4 years earlier. What
Alex_Xolod [135]

Answer:

18.3824%

Step-by-step explanation:

Sorry, this may be wrong. I am using an old skill, so it may be wrong.

3 0
3 years ago
What is 7.505 as a fraction
klemol [59]

1501 / 200

this is what i looked up an got

4 0
3 years ago
Other questions:
  • Express the following in scientific notation:<br> 10,030,400,000
    13·1 answer
  • Can someone please help me ASAP❤️
    6·1 answer
  • Help me find Angle AJL
    14·1 answer
  • Which quadratic equation is equivalent to (x - 4)2 – ( - 4) - 6 = 0?
    14·1 answer
  • Match each equation to its solution​
    9·2 answers
  • I need help on this please
    9·2 answers
  • What pair of numbers shows a common factor and a common multiple of 15 and 18?​
    14·1 answer
  • WILL MARK BRAINLIEST AND 50 PTS This table shows the minutes students spent studying for their science exam and the scores they
    15·1 answer
  • The points F(4,
    9·1 answer
  • Find the equation of the circle center (-3, 4) with radius 7 units.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!