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
Bond [772]
2 years ago
8

What is the cofunction of cos 2pi/ 9

Mathematics
1 answer:
fiasKO [112]2 years ago
3 0

The cofunction of cos is sin(90-x)

90 degrees is equal to PI/2

The cofunction becomes sin(PI/2 - 2PI/9)

Rewrite both fractions to have a common denominator:

PI/2 = 9PI/18

2PI/9 = 4PI/18

Now you have sin(9PI/18 - 4PI/18)

Simplify:

Sin(5PI/18)

You might be interested in
A certain company's main source of income is selling socks. The company's annual profit (in millions of dollars) as a function o
ivann1987 [24]
A quadratic function models the profit of the company and the maximum/minimum value of the quadratic function occurs on its vertex. 

The given function is:

P(x)=-3(x-5)^{2}+12

The equation is already in standard form, the vertex of the parabola as seen from the equation is (5,12)

This mean if the company sets the price of socks to $5 they will earn a maximum profit which is $ 12 million
3 0
3 years ago
Read 2 more answers
Help me please
Nata [24]

Answer:

-3 square root of 8 8/3 square root of 9

6 0
2 years ago
Identify the independent variable and dependent variable in the situation:
kramer
I think the independent variable is the number of people and the dependent is the wait time. I see it as the wait time DEPENDS on how many people are in line. This one is kinda confusing tho
3 0
2 years ago
A bakery sells chocolate cupcakes and mocha cupcakes. It sold 500 cupcakes in a day, and 16% of them were mocha. How many of the
Andrew [12]

Answer:

Your answer

420 were chocolate

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

6 0
3 years ago
If X = 3 inches, Y = 11 inches, W = 5 inches, and Z = 5 inches, what is the area of the object?
ziro4ka [17]
Hello i am new here how are you doing

7 0
3 years ago
Other questions:
  • Can somebody check to see if these are right? THANK YOU!!
    12·2 answers
  • Is -5 greater or less than -2
    8·2 answers
  • Ford Motor Company sells the Fusion SES for $24,400. The Fusion Hybrid sells for $29,975. What is the percentage increase in pri
    9·2 answers
  • April took out a $600 loan from the bank. At the end of 5 years, she pays back the principal, plus $60 simple. What was the inte
    11·2 answers
  • Kesia knows that 1/4=0.25. Explain how she could use this fact to determine the decimal equivalent of 5/8
    13·2 answers
  • 90,80,12 what's the range
    14·1 answer
  • Plz plz pls help pls
    7·2 answers
  • Thirty- five percent of students at jones high school ride the bus. Two hundred seventy-three students ride the bus. How many st
    8·1 answer
  • use a numerical method to estimate the value of the limit (if it exists.) Lim e^5t -1 /t as x tends to 0 from both sides​
    13·1 answer
  • A school flag consists of three rectangular sections that each have a different color.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!