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
satela [25.4K]
3 years ago
12

Which of the following is not equal to cos⁡(520°)?

Mathematics
2 answers:
Gnoma [55]3 years ago
8 0
The cosine repeats itself every 360 degrees, and it mirrors at 0 and 180 degrees. It inverts around 90 and 270.
So without using a calculator, you can tell that:

cos(520)=cos(520-360)=cos(160)
cos(160) = cos(180-20) = cos(180+20) = cos(200)
cos(160) is NOT equal to cos(20), it would be -cos(20).
cos(160) = -cos(20) = -cos(-20)

So C is the only one unequal.
Bas_tet [7]3 years ago
8 0

Answer:

c is not equal to cos(520)

Step-by-step explanation:

You might be interested in
What is the difference between DEPENDENT and INDEPENDENT probability?
ira [324]

Answer:

an independant variable dosent depend on any thing and a dependant variable depends on

if you rode a paddle boat for 30 min it cost 10 dollars

the 30 min is the independant variable and the 10 dollars is the dependant variable bc if u wanted to ride for longer than 30min you will have to pay more money therefore the cost depends on the time and time is independent bc the dosent depend on anything

3 0
2 years ago
There are 100 students in 11th grade at john d'obryant school of math & science in boston. 60 like basketball and 70 like te
Kryger [21]
I think 70 because playing on a varsity, i think, means to play both sports. So I added 10 to the number of students that play basket ball, which is also equal to the number of students that like tennis.

im not sure
7 0
3 years ago
$199 ring; 10% discount
docker41 [41]

Answer:

19 9/10

10 percent = 1/10

1/10*199=199/10

199/10=19 9/10

3 0
3 years ago
Which graph below shows a system of equations with no solution?
Radda [10]
Graph A.....parallel lines will have no solution because they never intersect
5 0
2 years ago
Read 2 more answers
A study examined the relationship between having a baccalaureate degree and passing a cultural competency exam among a group of
Eva8 [605]

Answer:

More nurses with a baccalaureate degree is estimated to pass the exam but this was not a significant difference.

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • What is the slope for the equation y=7
    6·2 answers
  • Adam Wants To tip the room service person 15 Percent Of The Food bill Of 163.56 How Much Should He Tip
    6·2 answers
  • (n-2) 180 divided by n
    7·1 answer
  • Plz help me idk what t0o do
    5·1 answer
  • 8 strawberries 5 bananas 3 oranges <br><br> Strawberries to bananas and oranges
    11·1 answer
  • Please help I,do not understand​
    10·1 answer
  • If u not lame den fren me or not idrc<br> but anyways fre point
    15·2 answers
  • HELP WIT THIS IF U CAN
    7·1 answer
  • Find the solution of the system of equations. 10x + 8y = 42. -8x - 8y = -40​
    13·2 answers
  • PLSSS HELP IF YOU TURLY KNOW THISS
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!