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
lions [1.4K]
3 years ago
12

If sin a=-4/5 find cos a​

Health
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

sin a=-4/5

we have sina=perpendicularp/hypotenuseh=-4/5

let p=-4k

h=5k

by Pythagoras theorem

h²=p²+b²

(5k)²=(-4k)²+b²

25k²-16k²=b²

(3k)²=b²

b=√(3k)²=3k

now

cos a =b/h=3k/5k=3/5

You might be interested in
Temperature ranges tend to be larger at the coast. *<br> True or False
kow [346]

Answer:

True

Explanation:

5 0
3 years ago
Teresa would like to begin eating healthier and has created a plan of action to help reach that goal. Her study group meets at a
Assoli18 [71]

Answer:

The correct answer is c. modify her environment.

Explanation:

As Teresa is preparing herself to eat healthier and has created a plan of action to help reach that goal so meeting with her friends at the fast-food restaurant should be avoided because if she will go to fast food restaurant than there will be chances to eat fast food by her which will obstruct her to reach the goal.

Therefore Teresa knows that she needs to modify her environment from fast-food restaurants to the library so that she can meet her goal by avoiding fast food. Therefore the correct answer is c.  modify her environment.

5 0
3 years ago
Total acceptance of another individual including their virtues and flaws
olasank [31]

Answer:

unconditional positive regard

Explanation:

8 0
3 years ago
Read 2 more answers
Is there anything healthy or in healthy about these nutrition facts
stellarik [79]
Butter is NOT healthy at all. period
7 0
3 years ago
Read 2 more answers
The numbers on a heart monitor machine, like the one's in hospitals mean? i know they are stats. But stats of what?
Salsk061 [2.6K]
Number of people on the heat monitor is normally do to the patient either having a heart attack or having had a heart attack in the past do to heat problems of stress.
5 0
3 years ago
Other questions:
  • Ronald is concerned about exposure to antibiotics and hormones in our food supple. Which type of wellness does this affect?
    15·2 answers
  • Does exercising daily have other benefits than just getting in shape?
    12·1 answer
  • ____________ of the OSH Act protects employees from being fired or retaliated against for exercising your rights under the Act.
    5·1 answer
  • When paper records are scanned into EMR system,what should the medical assistant do with the paper records
    10·1 answer
  • Jason is a body builder. Despite being more fit, he weighs more than his brother Ryan, who is the same height. Which is a possib
    13·2 answers
  • This kind of serve has two types: the topspin and the floater.
    8·2 answers
  • What is one way a class can specifically help dual language learners feel included?
    5·1 answer
  • 1.1.3. Evaluate your own position on the violence against women and children
    11·1 answer
  • Sequoia made a chart to study the cardiovascular system.
    11·1 answer
  • To prevent meningitis, routine vaccination in the united states is provided against______________
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!