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
ludmilkaskok [199]
3 years ago
15

Given sin theta= 6/11 and sec theta < 0, find cos theta and tan theta.

Mathematics
2 answers:
bekas [8.4K]3 years ago
4 0

Answer: option a.

Step-by-step explanation:

By definition, we know that:

cos^2(\theta)=1-sen^2(\theta)\\\\tan(\theta)=\frac{sin(\theta)}{cos(\theta)}

Substitute sin(\theta)=\frac{6}{11} into the first equation, solve for the cosine and simplify. Then, you obtain:

cos(\theta)=\±\sqrt{1-(\frac{6}{11})^2}\\\\cos(\theta)=\±\sqrt{\frac{85}{121}}\\\\ cos(\theta)=\±\frac{\sqrt{85}}{11}

As sec\theta then cos\theta:

cos(\theta)=-\frac{\sqrt{85}}{11}

Now we can find tan\theta:

tan\theta=\frac{\frac{6}{11}}{-\frac{\sqrt{85}}{11}}\\\\tan\theta=-\frac{6\sqrt{85}}{85}

Brut [27]3 years ago
4 0

Answer:

a

Step-by-step explanation:

You might be interested in
Helpppppp pleaseeee I have to ansswer Find the area of the shaded region
murzikaleks [220]

Answer:

Area = 6.6 cm²

Step-by-step explanation:

Area of the shaded region =

  Area of Rectangle - Area of Trapezoid - Area of circle - Area of Triangle

Area of rectangle = Length x Breadth

                            = 3 x ( 1.5 + 2 + 1.5)

                            = 3 x 5

                            = 15 cm²

Area of the trapezoid = h x ( a + b )/2

                                   = 1.5 x ( 3 + 1)/2

                                   = 1.5 x 2

                                   = 3 cm²

Area of the circle = π x r²

                            = 3.14 x 1           [diameter, d = 2 cm, r = d/2 =1]

                            = 3.14 cm²

Area of triangle = (1/2) x base x height

                         = (1/2) x 3 x 1.5

                         = 2.25 cm²

Area of the shaded region = 15 - 3 - 3.14 - 2.25  

                                           = 6.61 cm²

                                           = 6.6 cm ²      [ round to nearest tenth ]

6 0
2 years ago
7. Liang is ordering new chairs and cushions for his dining room table.
Furkat [3]

Answer: 100c +34

Step-by-step explanation: I believe you add 88c and 12c together which simplifies the expression to 100c + 34 in total cost.  

7 0
3 years ago
3. Multiply (-7)(2)(-2). (5 points)<br> 1. -28<br> 2. -14<br> 3. 28<br> 4. 14
Rashid [163]

Answer:

28

Step-by-step explanation:

-7x2 is -14

-14x-2 is positive 28.

5 0
3 years ago
Read 2 more answers
Y = -4.5x + 15<br><br> is this not a function, linear function, or nonlinear function
crimeas [40]
This is a linear function
5 0
2 years ago
*GIVING BRAINLIEST!!!*
Vlad1618 [11]
D is the correct answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is greater 0.9 or 95%
    5·1 answer
  • Find the least common multiple (LCM) for the pair of numbers.
    5·1 answer
  • On a map, 1/3 inch represents 25 miles. How many inches on this map represent 325 miles?
    12·2 answers
  • 1 9/7 ​ ÷ 5/4 ​ please help me
    9·2 answers
  • What terms from the table below represent like terms?
    6·1 answer
  • 9. Wade has 126 inches of 1-inch wide bias tape for a border
    7·1 answer
  • What is the volume?<br> 7ft<br> 4ft<br> 1ft
    12·1 answer
  • Solve: - 4x +3&lt;-9<br><br> idk tbh
    6·2 answers
  • PLEASE HELP ME Solve the following equation.
    7·2 answers
  • 2) Solve the equation 9x = 7(x + 2).<br> A) - 7<br> B) -1<br> 0 1<br> D) 7
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!