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
irina [24]
3 years ago
13

Find the exact value of cot 7pi/4 & sec13pi/6 including quadrant location

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0
First we will convert those radian angles to degrees, since my mind works better with degrees.  Let's work one at a time.  First, \frac{7 \pi }{4} * \frac{180}{ \pi }=315.  If we start at the positive x-axis and measure out 315 we end up in the 4th quadrant with a reference angle of 45 with the positive x-axis.  The side across from the reference angle is -1, the side adjacent to the angle is 1, and the hypotenuse is sqrt2.  The cotangent of this angle, then is 1/-1 which is -1.  As for the second one, converting radians to degrees gives us that \frac{13 \pi }{6} * \frac{180}{ \pi } =390.  Sweeping out that angle has us going around the origin more than once and ending up in the first quadrant with a reference angle of 30° with the positive x-axis.  The side across from the angle is 1, the side adjacent to the angle is √3, and the hypotenuse is 2.  Therefore, the secant  of that angle is 2/√3.
You might be interested in
After school Philippe spent 1 3/4 hours at baseball practice, 2 1/4 hours on homework, and 1/4 hour getting ready for bed. About
marshall27 [118]

Answer:

4 hours. 1 3/4 is about 2, and 2 1/4 rounds to 2. 1/4 would round to 0, but it would not affect the estimate's accuracy much because we rounded up by 1/4 on 1 3/4 already. Philipe spent about 4 hours on activities.  

Step-by-step explanation:

4 0
2 years ago
The square has a perimeter of 24 ft. What is the length of each side. Plsssss help
BigorU [14]

Each side is 6 feet.

let s be 1 side of the square

24 = 4s

6 = s

8 0
3 years ago
Read 2 more answers
A Baker used 7 bags of cookie-doe to make 10 cookies he used__ of a doe for each cookies- How many?
Ksivusya [100]

Answer:

I think it is 70

Step-by-step explanation:

7(10)=70

70=70

3 0
2 years ago
Read 2 more answers
Monique has 2 less than half as many pairs of shoes as Dalia . Monique has four pairs of shoes. Which equation can be used to fi
viktelen [127]

Answer:

4m +2m = D

Step-by-step explanation:

i think i havent done this in a long time but idk

ik that dalia has 6 shoes

4 0
3 years ago
What are the steps to solving this problem K + 8\5 = 1k
DaniilM [7]

-- Subtract K from each side of the equation.

8/5 = 0

-- There is no value for K that can make this a true statement. So the original equation has no solution.

8 0
3 years ago
Other questions:
  • How to solve 2y=8. is this a linear function
    9·1 answer
  • Solve. y = x2 +2 for x.<br> O A. x = I1y - 2<br> OB. X= y - 2<br> O C. X = y + 2<br> D. X = +\y +2
    7·2 answers
  • Please help with this question
    6·1 answer
  • A kite was broken into two triangles of the same size and shape .
    8·2 answers
  • The operations manager at a compact fluorescent light bulb (CFL) factory needs to estimate the mean life of a large shipment of
    11·1 answer
  • Plz help me solve this thanks
    14·1 answer
  • Amplitude of h(x)=-4sin(2x-7)+3
    11·1 answer
  • The three-dimensional figure below is a cylinder with a hole in the shape of a rectangular prism going through the center of it.
    8·1 answer
  • 5) Find the value of x (pic below
    8·1 answer
  • Dont answer this ever
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!