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
Vedmedyk [2.9K]
4 years ago
6

How do you solve this?(5+i)(5+2i)

Mathematics
1 answer:
kozerog [31]4 years ago
7 0

Answer:

  23 +15i

Step-by-step explanation:

Multiply the binomials in the usual way, then replace i² by -1 and simplify.

  (5 +i)(5 +2i) = (5)(5) +(5)(2i) +(i)(5) +(i)(2i) = 25 +10i +5i +2i²

  = 25 +15i +2(-1)

  = 23 +15i

You might be interested in
Please help me in this worksheet it’s really important
liubo4ka [24]

Answer:

AB:0:2

BC:6:4

CD:9:6

DE:9:15

Step-by-step explanation:

7 0
4 years ago
-9(-2)-3y=6 slove for y
andreyandreev [35.5K]

Answer:

y=4

Step-by-step explanation:

-9(-2)-3y=6

18-3y=6

-3y=6-18

-3y=-12

y=(-12)/(-3)

y=4

5 0
3 years ago
PLZZZ HELLP I'LL GIVE YOU POINTS AND MARK YOU AS BRAINLIEST
yanalaym [24]
You plug 11 in where x is.
r(11) = (11 + 1)(11 - 3)
= (12)(8)
= 96
3 0
4 years ago
What is the problem of 200 and 400
user100 [1]
200+400=600 u just add 2 and 6 togather and u get 6 and then annd the two zeros on too it 
6 0
3 years ago
Based on the z-statistic of –2.5 for the sample data, should the null hypothesis be rejected? Yes, because the z-statistic lies
ivann1987 [24]

Answer:

No, because z-statistics lies within the critical region.

Step-by-step explanation:

The z value is calculated to determine whether the null hypothesis should be accepted or rejected. The null hypothesis is rejected when the z-value lies outside the critical region. The critical region is determined by the sample data.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Average attendance is 15,,500. increased to 18,000. what is the percent/
    15·2 answers
  • HELP DUE in 1 HOUR<br> m∠1 =
    11·2 answers
  • Tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. Show your work.
    9·2 answers
  • Explain why Josue is correct?
    12·1 answer
  • Which equation represents a lineThat passes through (-2, 4) and has a slope of 2/5
    9·1 answer
  • NO NO NO LINKS PLS HELP
    6·1 answer
  • 5(<br> 5X<br> –<br> 10)<br> =<br> 15 solve it ​
    8·1 answer
  • QUESTION OF THE DAY: What is the perimeter (in ft) of the rectangle? Please click on the image below to find the answer ( Rememb
    14·1 answer
  • Could 18 in, 6 in, 13 in form a triangle
    7·1 answer
  • Please help. I don't understand what to input into the c...
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!