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
Gala2k [10]
3 years ago
9

If cos 60° = 1/2 and sin 60º = root 3/2 find cos 240° and sin 240".

Mathematics
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

cos 240 deg = -1/2   and   sin 240 = - root(3)/2

Step-by-step explanation:

if cos 60° = 1/2 and sin 60º = root 3/2 find cos 240° and sin 240".

we  know that  cos 240 =   cos  (60 + 180) =  - cos 60 =  - 1/2

cosine is negative when the angle is in the 3rd quadrant

sin 240 = sin (60 + 180) =  - root(3) /2

sine is also negative in the 3rd quadrant.

You might be interested in
Help answer question about triangles!
Anna11 [10]

yes they are similiar is sam shape diffrent siz

4 0
3 years ago
Read 2 more answers
How to do break even analysis​
Ksenya-84 [330]

Answer:

To calculate a break-even point based on units: Divide fixed costs by the revenue per unit minus the variable cost per unit. ...

When determining a break-even point based on sales dollars: Divide the fixed costs by the contribution margin.

7 0
3 years ago
Please help Find: ∠x ∠a ∠b
V125BC [204]

Answer:

your answer

don't forget to mark brainliest✌️✌️

7 0
3 years ago
What is the value of x in the equation 2x- 1.3 = 5?
Basile [38]
I hope this helps you

2x=5+1,3

2x=6,3


x=3,15
3 0
3 years ago
Find the missing the coordinates. Tiles (2, 1) (2, -2) (-5, -5) (-1, -1) Pairs A(2, 5), B(6, 5), and C(6, 1) are three vertices
tensa zangetsu [6.8K]
1) <span>Pairs A(2, 5), B(6, 5), and C(6, 1)
point D
Dx=Cx-(Bx-Ax)=(6-(6-2))=2
Dy=Cy=1
</span>the coordinates of vertex D is (2,1)

2) 
Pairs <span>A(2, 3), B(7, 3), and C(7, -2)
</span>point D 
Dx=Cx-(Bx-Ax)=(7-(7-2))=2
Dy=Cy=-2
the coordinates of vertex D is (2,-2)

3) 
Pairs <span>A(-5, -1), B(1, -1), and C(1, -5)
</span>point D 
Dx=Cx-(Bx-Ax)=(1-(1+5))=-5
Dy=Cy=-5
the coordinates of vertex D is (-5,-5)

4) 
Pairs <span>A(-1, 4), B(7, 4), and C(7, -1)
</span>point D 
Dx=Cx-(Bx-Ax)=(7-(7+1))=-1
Dy=Cy=-1
the coordinates of vertex D is (-1,-1)
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find a solution x = x(t) of the equation x′ + 2x = t2 + 4t + 7 in the form of a quadratic function of t, that is, of the form x(
    15·1 answer
  • You scored a 91 on a test with bonus points. you got 4 bonus points how many points did you score before the bonus points
    11·2 answers
  • John took four tests.
    14·2 answers
  • What is the range of the following data values? 48,61,57,82,79
    14·2 answers
  • 2 less than 7 times a number c is written as
    10·1 answer
  • How do you find LCM? please give a good explanation!
    6·1 answer
  • The probability of drawing a red candy at random from a bag of 25 candies is 2/5.
    13·1 answer
  • PLZ I`M TIMED
    14·2 answers
  • The<br>percentage<br>fraction and<br>de cimal<br>number<br>5%<br>17 %<br>3.5 %​
    14·1 answer
  • Plsssssss help me pls pls pls
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!