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
antiseptic1488 [7]
3 years ago
5

Find tan θ if cos θ = 1/4 and sin θ < 0.

Mathematics
1 answer:
inn [45]3 years ago
7 0
Hello : 
cos²(θ) +sin²(<span>θ) = 1
(1/4)² +sin²(</span><span>θ) = 1
</span>sin²(θ) = 1 -1/16
sin²(θ) =15/16
sin(θ) = - √(15/16)=- √15/4    because : <span>sin θ < 0.
</span>tan (θ) =sin (θ)/  cos( θ) =(- √15/4)/(1/4) = - √15
You might be interested in
Simplify each of the following:
Zepler [3.9K]

Answer:

a)

  • √25 + √50 - √24 + √49 =
  • 5 + 5√2 - 2√6 + 7 =
  • 12 + 5√2 - 2√6

b)

  • √2(2√8 – 3√32 + 4√50) =
  • 2√16 - 3√64 + 4√100 =
  • 2*4 - 3*8 + 4*10 =
  • 8 - 24 + 40 =
  • 24
7 0
3 years ago
Read 2 more answers
Henrietta is mixing paint for an art project. She uses 2 cups of red paint for every 3 cups of yellow paint for each batch. If s
bezimeni [28]
2/3=6/x
2x=6*3
2x=18
x=18/2
x=9
5 0
2 years ago
9dx10=240 pls hurry
vaieri [72.5K]

Answer:

2.6 or \frac{8}{3}

Step-by-step explanation:

9d×10=240

÷10        ÷10

9d =24

÷9      ÷9

2.6 or \frac{8}{3}

8 0
2 years ago
HELP!! Fiona races BMX around dirt course. If the radius of the course is 70 meters, what is the total distance Fiona covers in
Tpy6a [65]

Answer:

879.64 (C)

Step-by-step explanation:

4 0
3 years ago
You walk east 720 feet to get from your house to class. After class, you walk southwest 1,044 feet to meet your friends for lunc
strojnjashka [21]
The direction you are traveling to get back home is North
4 0
3 years ago
Other questions:
  • X + 7 &lt; 9<br> Help please
    11·1 answer
  • The original price of a game system was reduced by $99.
    5·2 answers
  • Lynda is training for a half-marathon she ruined 3 3/4 miles on Monday 3 miles on Tuesday and two and a half miles on Wednesday
    6·1 answer
  • If Susie has 2 apples and she gave bill 1 how many apples does susie have?
    6·1 answer
  • Make a function table for y=-3x+3
    9·1 answer
  • What is the remainder when 2 is synthetically divided into the polynomial
    7·1 answer
  • BRAINLIEST AND EXTRA POINTS IF U HELP !
    9·2 answers
  • Please answer all the questions.
    9·1 answer
  • Find the point-slope equation of the line with slope -3 that passes<br> through the point (2, -10).
    11·2 answers
  • I’m so confused, can somebody help me do this?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!