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
irga5000 [103]
3 years ago
7

Sin(2x)=sin(4x) Solve

Mathematics
1 answer:
Anna11 [10]3 years ago
8 0
Sin(2x)-sin(4x)=0
-2cos(3x)sin(x)=0
x=pi/6+2kpi/3
x=pi/2+2kpi/3, k=no solution
x=2kpi
x=pi+2kpi
You might be interested in
Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 12x^3-30x=8-2x^2
Arisa [49]

12x^3 +2x^2-30x = 8
2x( 6x^2 +x -15) = 8
so 2x= 8, x=4
(2x) ( 2x-3) ( 3x+5) = 8
2x-3 = 8
2x= 11
x= 5.5
3x+5=8
3x= 3
x=1
3 0
3 years ago
Which example would be likely to give a valid conclusion?
m_a_m_a [10]
Thirty students are randomly sampled about their hair color. 

This is for two reasons,. Firstly, randomness is very important in drawing conclusions. Secondly, it is less of an opinion question and more fact based. 
7 0
3 years ago
Read 2 more answers
Which ordered pair is a solution of the system of equations? y= 3x + 1 y= 5x - 1 A (2,3) © (1,2) B (0, 1) D (1,4)​
Vadim26 [7]

Answer:

D

Step-by-step explanation:

So first, we have to test the pairs. Let start with equation 1.

7=\=3 x

4=\=2 x

0=0 ✓

4=4 ✓

Now we only have to test B and D.

0=\=-1

4=4 ✓

D is the correct answer.

7 0
2 years ago
Khloe and Emma work at a furniture store. Khloe is paid $245 per week plus 9.5% of her total sales in dollars, xx, which can be
ale4655 [162]

Answer: Their weekly pay would be the same if xx equals $1,600

Step-by-step explanation: The first and most important step is to identify what the question requires, and that is, what is the value of the unknown in the equation of their weekly incomes that would make their pay to be the same? Their weekly pay as per individual is given as follows;

Khloe = 245 + 0.095x ———(1)

Emma = 285 + 0.07x ———(2)

Simply put, we need to find the value of x when equation (1) equals equation (2)

245 + 0.095x = 285 + 0.07x

Collect like terms and we now have

0.095x - 0.07x = 285 - 245

0.025x = 40

Divide both sides of the equation by 0.025

x = 1600

Therefore their weekly pay would be at the same level, if x equals $1600

6 0
3 years ago
Which two lines below are perpendicular lines?
Naily [24]

Answer:

You said never mind, but I really like your username :)

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • A pair of 120 shoes was discounted 20 percent a costumer had a coupon for an additional 5 off what was the final price of the sh
    10·1 answer
  • Is this true or false?
    11·2 answers
  • 7x5 answer plz i need help
    10·2 answers
  • The average wind speed at a local weather station is 34.8 miles per hour. The highest speed ever recorded the stations 318.0 mil
    9·1 answer
  • Joey went for 15 auditions. Out of those 15 auditions, he got called back for 30% of them. Approximately how many did he get cal
    6·1 answer
  • Help please with this. I would really appreciate fast help =)
    10·1 answer
  • What is the area ?!!
    7·2 answers
  • Please help!!! asap!!!!!!
    15·1 answer
  • What is the area of a rectangle whose length is 36 inches and whose width is 42 inches?
    10·1 answer
  • Farmer Brown planted corn and wheat on
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!