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
irinina [24]
3 years ago
14

Simplify and write the complex number in standard form 4i(7+6i)+2i(5-2i)

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0

Answer:

-20+38i

Step-by-step explanation:

Hope this will help you

Bezzdna [24]3 years ago
3 0

Answer:

20i² + 38i

Step-by-step explanation:

4i(7+6i)+2i(5-2i)

28i + 24i² + 10i - 4i²

24i² - 4i² + 28i + 10i

20i² + 38i

You might be interested in
Prior to a special advertising campaign, 23% of all adults recognized a particular companyâs logo. At the close of the campaign
pochemuha

Answer:

The answer is "2.4049"

Step-by-step explanation:

Calculating the test of Hypothesis: H_{0}: 23\% \ \text{off all adults which reconize the compony's logo}\\\\H_{1}: \text{more than 23\% of adult recornise the compony's logo}\\\\

that is

H_{0}: p=0.23\ against \ H_{1}:p>0.01\\\\Z=\frac{P-p}{\sqrt{\frac{p(1-p)}{n}}}\sim N(0,1)\\\\

Given:

p= 0.23\\\\ \therefore \\\\1-p=0.77\\\\n=1200\\\\ P=\frac{311}{1200}=0.2591\\\\\therefore\\\\Z= \frac{0.2591-0.23}{\sqrt{((0.23)\times \frac{(1-0.23))}{1200}}}=2.4049

Z=2.576 tabled value. Because Z is 2.4049, that's less than Z stated, there is no indication that a null hypothesis is rejectable, which means that 23% of all adults record the logo of the Company.

8 0
3 years ago
Rewrite 4⁵ = 1024 as a logarithmic equation
Leviafan [203]

Answer:

log4(1024)=5

Step-by-step explanation:

the 4 is a subscript

3 0
3 years ago
At 7:00 AM there were 14,000 gallons of water in Lance’s pool when he noticed there was a leak. After 6 hours there were only 5,
Irina-Kira [14]
Hopefully you can read and learn from this.

4 0
4 years ago
Read 2 more answers
!!! 20 POINTS !!!
8_murik_8 [283]
Answer: rental cost for each movie $1.50
Rental cost for each video game $6.25

Explanation:

m = rental cost of each movie
g = rental cost of each game

Set up:

8m + 4g = 37
3m + 2g = 17

Modify for elimination:

3 (8m + 4g = 37) ———> 24m + 12g = 111
8 (3m + 2g = 17) ———> 24m + 16g = 136

Subtract:

24m + 16g = 136
- 24m - 12g = -111
——————————
4g = 25

Divide:

4g = 25

g = 25/4

g = 6.25

So each game is $6.25

Now plug in “g” to one of the original equations and solve for “m” to find the rental cost for each movie

3m + 2 (6.25) = 17 (multiply 2 & 6.25)

3m + 12.50 = 17 (subtract 12.50 from sides)

3m = 4.50 (divide both sides by 3)

m = 1.50

So each movie rental is $1.50

3 0
2 years ago
Ron wants to run 6 miles this week. He ran
Yanka [14]

Ron would need to run 3 miles

4 0
3 years ago
Read 2 more answers
Other questions:
  • Erica scored 40 points on a test. This was 80% of the total possible score. Find the total possible score. (PLEASE SHOW THE STEP
    8·1 answer
  • Below are the scores for players competing in a two-day golf tournament. Which golfer had the greatest difference between his or
    12·1 answer
  • The price of an apple is 78¢, and the price of an apple juice is
    6·2 answers
  • The figure shows a transversal crossing two parallel lines. What is the value of x?
    8·1 answer
  • Which expression is equivalent to 4(7 + 8)?
    6·2 answers
  • Two basketballs are thrown along different paths. Determine if the basketballs’ paths are parallel to each
    11·1 answer
  • 6 + 1.5x = -12 please answer
    13·2 answers
  • Create your own system of 2 equations word problem. Answer it with full step by step explanation. Help and thank you. ​
    15·1 answer
  • This is an important question help me with my Semester Exam
    14·1 answer
  • you roll a standard die. you win $12 if you roll a six, $6 if you roll a one, and $0 if you roll anything else. what is the expe
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!