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
attashe74 [19]
3 years ago
15

Determine the sign of cos pi divided by three without using a calculator.

Mathematics
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

positive

Step-by-step explanation:

To solve this, we can look at the unit circle (see attached photo), We know:

(0,1) = π/2

(-1, 0) = π

(0, -1) = 3π/2

(1, 0) = 0

Across the circle, we know that π/3 is between 0 and π/2. Therefore, as the unit circle line between that is positive in the x direction (cos), we can say that cos(π/3) is positive

You might be interested in
Which equation represents a direct linear variation?
ivolga24 [154]
Y=1x because if you draw it on the line you’ll see the linear variation
3 0
3 years ago
Need a quick answer please
ElenaW [278]

Answer:

X=10

MArk me brainliest

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
NEED HELP WILL MARK BRAINLIEST
Furkat [3]

Answer:

15

Since 9 questions is 60% of the exam, you must find 100%. You could find the value of 10% by dividing 60 by 6. You do the same to 9, divide by 6 to get 1.5. Now that you have the value of 10% you can multiply 10% by 10 to get 100. You also do the same to 1.5. Your answer should be 15, if not check your work again.

Step-by-step explanation:

7 0
3 years ago
Rateeee me lolllllllzz
Elena-2011 [213]

Answer:

Bro your so fing pretty

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone please help me
Elza [17]

Answer:

student G is in the band

and student B plays the piano and is in the band

B is in the overlap of the two circles which means they fall into both categories

Hope this helped

I messed up before and did students A and B but I fixed it, so sorry that's my bad.

5 0
3 years ago
Other questions:
  • Please help me it’s due today
    9·1 answer
  • What is the squat root of 0.64
    6·1 answer
  • Between which two integers does square root of /150 lie?
    10·1 answer
  • Solve 100 divided by 5 x 4 + 4³
    14·2 answers
  • BRAINLIEST AND 30 POINTS!!! HURRY!!
    13·2 answers
  • 5x - 7(2- 4x) = <br> 8 - 3(6 - 6x) =<br> 9a - 4(2a + 5) =
    11·1 answer
  • If the variance of the data values in a population in 256, what is the standard deviation of the data set values
    13·1 answer
  • \frac{h^{2}-1 }{h+3}<br> Plz answer<br> Show work
    8·1 answer
  • 10.
    8·1 answer
  • Lines of latitude on Earth are actually circles. The Tropic of Cancer is the northernmost line of latitude at which the Sun appe
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!