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
PolarNik [594]
2 years ago
5

I was taught how to do this but I need help, as I’m having a brain malfunction

Mathematics
1 answer:
pashok25 [27]2 years ago
5 0

Answer:

theta = 135+ n360

theta = 225+n360

Step-by-step explanation:

-sqrt(2) = 2 cos theta

Divide each side by 2

-sqrt(2)/2 =2/2 cos theta

-sqrt(2)/2 = cos theta

Take the inverse cos on each side

arccos (-sqrt(2)/2) =  arc cos(cos theta)

135 = theta

Now remember this only gives you the value between 0 and 180 degrees.

Take 360 minus the value found to get the other angle since this is cosine

360 -135 = 225

Now remember this is cyclical, so we can add 360 to each of these values and we will get the same amount

theta = 135+ n360

theta = 225+n360


You might be interested in
I'm stuck on another question 5 4/5 + (-3 2/7)
anyanavicka [17]

So that would be the same thing as 5 4/5 - 3 2/7

Put them in mixed fractions to become 29/5 - 23/7

Multiply one side by 7 and one side by 5 to get the same denominator  

203/35 - 115/35

Now subtract the numerators to get

88/35

Or if they want it inixed numbers then 2 18/35

5 0
3 years ago
Read 2 more answers
Please help me I am clueless
Anastaziya [24]
The first one on the right

If b is greater, then it will be to the right of a
7 0
3 years ago
If my grade is an 72 and I get a 100 on a test, how will that affect my grade? (What will my grade be after?)
pychu [463]

Answer: It depends on what categories your teacher has and what percent of your grade it is worth. I would recommend an online grade calculator

4 0
2 years ago
Read 2 more answers
The volume of a cone is 1/3 that of a cylinder when the radius and height are the same (v= 1/3(pi)(r)^2(h). What is the volume o
Ira Lisetskai [31]

\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the Surface Areas and Volumes.

Since, Volume of cone = 1/3 π r^2 h,

here, r = 10 Inches and h= 12 inches, also π =3.14

so, VOC = 1/3 π (10)^2 × (20)

VOC = 1/3(3.14)(100)(20)= 2093.33 inch^3

=> so the volume of the cone is 2093.33 cubic inches.

5 0
3 years ago
I need help with standard form the problem is -4y+6x=2
nikitadnepr [17]

Answer:

6x-4y=2

Step-by-step explanation:

-4y+6x=2

6x-4y=2

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the equation of the quadratic graph with a focus of (−4, −five fourths) and a directrix of y = twenty seven fourths?
    11·2 answers
  • When asked to find an equivalent expression to 3(8+7) 3(8+7) , James said 24 + 21. a) What property did James use? b) Do you agr
    14·1 answer
  • PLS help meee i have posted this 3 othe times
    13·2 answers
  • HELP PICTURE IS SHOWN
    5·1 answer
  • A 5-pound bag of flour costs $9.60. What is the price per ounce?
    7·2 answers
  • “When I left the house this morning, I noticed that I was short on cash,” Gary said. “I spent one-half of what I had on my train
    6·1 answer
  • Model of a planned baseball stadium is 2 ft wide. The actual stadium will be 200 yd wide. What is the scale factor?
    13·1 answer
  • PLEASE HELP !! I'LL GIVE YOU BRAINLIEST !!
    5·1 answer
  • HELP I GIVE BRAINYEST The angle measurements in the diagram are represented by the following expressions.
    12·1 answer
  • Can someone try to help?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!