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
xenn [34]
3 years ago
14

Solve the equation for [0,2pi] cos2x=1/sqrt2

Mathematics
1 answer:
lapo4ka [179]3 years ago
5 0
cos(2x) = \frac{1}{\sqrt{2}}
cos(2x) = \frac{1}{\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}
cos(2x) = \frac{\sqrt{2}}{2}
cos(2x) = cos(45)
cos(x) = cos(22.5)
x = 22.5
You might be interested in
PLSSS HELP IF YOU TURLY KNOW THISS
kirill [66]

Answer:

C) 3/4

Step-by-step explanation:

It is three steps out of four.

6 0
2 years ago
Read 2 more answers
What is the gcf of 16,100
Kisachek [45]
The Greatest Common Factor of 16, 100 is 4.
3 0
3 years ago
Round 47.44 to 1 decimal place
MariettaO [177]

Answer:

47.4 is the correct answer.

Step-by-step explanation:

Helpful?❤️

8 0
4 years ago
Read 2 more answers
Heeeeeeelp pleasee pleasee
natima [27]
I'm going to convert all the values given to you in percentages, so hopefully you should be able to see the correct answer a little clearer. :)

Debbie said that 21/50 drink coffee in the morning. 21/50 can also be written as 42/100, and now that it's out of 100, it's basically a percentage. (42%).

Allen said that 45% of people drink coffee in the morning. His value is already written as a percentage, so we won't do anything with it.

Benny says that 0.495 of the people he surveyed drink coffee in the morning. 0.495 is the same as 49.5% (multiply it by 100 to get it in a percentage).

So, in Debbie's survey, 42% of people drink coffee.
In Allen's survey, 45% of people drink coffee.
In Benny's survey, 49.5% of people drink coffee.

Therefore, the answer is Benny's survey. :)
8 0
3 years ago
What is 32 divided by 7
juin [17]
The answer of v32 divided by 7 equals 4.57
4 0
4 years ago
Read 2 more answers
Other questions:
  • What is $120 plus 9.75%
    14·1 answer
  • Factor the polynomial completely using the
    11·2 answers
  • A company wants to lay cable across a lake. To determine the distance across the lake it took the following measurements and cre
    13·1 answer
  • Subtract 5x+10 from 2x-6 please answer
    10·1 answer
  • (Please help this is a test ;-;) The area of a rectangle is 130 millimeters^2. The length is 3 millimeters greater than its widt
    12·1 answer
  • HELLPPPP ME E ITS DUE TODAY
    5·1 answer
  • How would you find the volume of a tower created from 1,000 cans that were each 12oz in volume?
    15·1 answer
  • What times what equals 36
    12·2 answers
  • The area of the curved surface of a solid cylinder is equal to 2 by 3 of the total area of the same cylinder if the total surfac
    5·1 answer
  • 5.2 Q4 - will mark brainliest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!