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
Bas_tet [7]
3 years ago
7

Given sin x=0.3 , what is cos x ?

Mathematics
2 answers:
blsea [12.9K]3 years ago
7 0
Cos x = sqrt( 100 - 9) / 10 
<span>= 0.9539392014</span><span>sin x = 0.3 = 3/10
</span>
shusha [124]3 years ago
7 0

Answer:  The value of \cos x is 0.95.

Step-by-step explanation:  Given that, for an angle x,

\sin x=0.3.

We are given to find the value of \cos x.

We will be using the following trigonometric identity:

\cos^2x+\sin^2x=1.

We have

\cos^2x+\sin^2x=1\\\\\Rightarrow \cos^2x=1-\sin^2x\\\\\Rightarrow \cos x=\sqrt{1-\sin^2x}\\\\\Rightarrow \cos x=\sqrt{1-(0.3)^2}\\\\\Rightarrow \cos x=\sqrt{1-0.09}\\\\\Rightarrow \cos x=\sqrt{0.91}\\\\\Rightarrow \cos x=0.95.

Thus, the value of \cos x is 0.95.

You might be interested in
Joey and his family plan to visit the grand canyon, Yellowstone national park and the Washington monument. They will travel 1,32
Butoxors [25]

Answer:

4335

Step-by-step explanation:

Its the answer i did the test once give brainliest

8 0
4 years ago
John has 12 pounds of dog food he is going to separate it into 3/4 pounds portions
agasfer [191]

Answer: 1

Step-by-step explanation:

i think u just have to divide

7 0
4 years ago
Read 2 more answers
Before the coffee shop opens. the employees bake 40 cookies which is 25 less than the number of donuts they make. Does the equat
ikadub [295]

Answer:

40= d-25

Step-by-step explanation:

d is donut

hope it helps!!!

7 0
3 years ago
1a. what is the slope. 1b. what is the y- intercept 1c. write the equation. PLEASE HELP IM DOING HOMEWORK AND ITS 1:00am
Sedaia [141]

the slope is 1 cos its goin ovr one, up one

y-int is (0,3) or jus strait up 3 cos thts where it crosses the y

iiiif you write it using y=mx+b,, m is the slope n b is the y int so itd jus be: y=x+3

6 0
3 years ago
Help needed i hate geometry so much
Nata [24]

Answer:

A

Step-by-step explanation:

The answer is A

5 0
3 years ago
Other questions:
  • Find the area of the trapezoid.<br><br> 168 in2<br> 72 ft2<br> 94.5 ft2<br> 84 ft2
    13·2 answers
  • A soccer field is 90 meters wide and 120 meters long.The coach asked the players to run from corner to corner diagonally across.
    5·1 answer
  • 2 terms; variables = x and y
    10·1 answer
  • In an isolated environment, a disease spreads at a rate proportional to the product of the infected and non-infected populations
    15·1 answer
  • The area of a round table is 1.13 m2. Find the radius length of
    15·1 answer
  • PLEASE HELP. !!!!!!!!!!
    8·1 answer
  • It costs $7.15 to rent a kayak for 1 hour at a local state park. The price per hour stays the same for up to 5 hours of rental.
    12·2 answers
  • 2. What is the domain of the following graph?
    10·2 answers
  • What is 3/7 rounded to the nearest whole number
    12·1 answer
  • Given: ABCD is a parallelogram.<br> Prove:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!