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
Oliga [24]
3 years ago
11

How do you find an exact value for sin of 40 degrees without using a calculator

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
8 0
Sin 40° + sin 130° + sin 220° + sin 310° = ...
sin 130° = sin 50°;
sin 220° = - sin 40°;
sin 310° = - sin 50°
... = sin 40° + sin 50° - sin 40° - sin 50° = 0
Answer: 0.

You might be interested in
3/12 and 5/x are equivalent ratios. Solve for x
AleksandrR [38]
I hope this helps you


3/12=5/x


1/4=5/x


x=4.5


x=20
3 0
3 years ago
Read 2 more answers
3y to the power of 2 +6y+2y
Dafna1 [17]

Answer:

3y2 + 8y

Step-by-step explanation:

3y2 + 6y + 2y

3y2 + 8y

7 0
3 years ago
I have bots answering some of my questions so if you get the right answer ill give brainliest and you also get some points too :
KonstantinChe [14]

Answer:

ok what's your question

4 0
3 years ago
Given the piecewise function shown below, select all of the statements that are true.
ZanzabumX [31]

Answer:

A, B & D are true

C is wrong

7 0
3 years ago
Factor by grouping.<br> 5w+2w + 25w + 10
masha68 [24]

Answer:

32w+10

Step-by-step explanation:

add all the w's then just add 10

7 0
2 years ago
Other questions:
  • Help, math (•_•) …........I have to put a lot of words but the question is on the picture
    8·1 answer
  • The graph of f(x) = |x| is transformed to g(x) = |x + 1| – 7. On which interval is the function decreasing?
    14·2 answers
  • I really need help on this question! Thanks so much if you do!
    8·1 answer
  • Evaluate the following expression.<br> (-3)-2<br> |<br> ao
    6·1 answer
  • Consider the following data set:
    11·1 answer
  • -2(6x + 5) = 74<br> Can you solve this for me?
    6·2 answers
  • What is the absolute vaulue of 5
    14·2 answers
  • Please help! will give brainliest
    8·1 answer
  • How does 3/4 and 9/12are alike and different?
    6·1 answer
  • Traingle Congruence, FlowChart Proof Level2, 10th Grade​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!