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
krok68 [10]
4 years ago
15

A right triangle in which one acute angle is a reference angle for a 75° angle in standard position intersects the unit circle a

t (0.259,0.966). What is the approximate value of cos75°

Mathematics
1 answer:
vampirchik [111]4 years ago
7 0

Alright, lets get started.

Please take a look at the diagram attached.

The reference angle of 75 will be 75

As it is mentioned that the angle intersects the unit circle means r = 1

So, finding cos

cos 75 = \frac{X}{r}

cos 75 = \frac{0.259}{1}

cos 75 = 0.259    :   Answer

Hope it will help :)


You might be interested in
Write the number as a question of integers to show that it is rational.<br> Please reply quickly!
snow_lady [41]

Answer:

\frac{-37}{99}

Step-by-step explanation:

0.555555... becomes \frac{5}{9}

Using this logic, we can do the following:

-0.37373737... = \frac{-37}{99}

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

3 0
3 years ago
Morgan and Kira have a number of jelly beans in a ratio 5:3. If Morgan and Kira have a total of 64 jelly beans, how many does Ki
Maurinko [17]

Answer:

Kira has 40 Jelly beans

Step-by-step explanation:

Morgan and Kira have a number of jelly beans in a ratio 5:3.

The ratio is

Morgan : Kira

5:3

The total proportion is= 5 + 3 = 8

Total number of Jelly beans that they have together is = 64 jelly beans

Hence, the number of Jellybeans that Kira has is calculated as:

5/8 × 64 jelly beans

= 40 jelly beans.

Kira has 40 Jelly beans

6 0
3 years ago
Is this triangle a right triangle? yes or no?
svlad2 [7]

Answer:

Yes.

Step-by-step explanation:

You can use the Pythagorean theorem to figure this out.

5²+12²=13²

25+144=169

169=169

You can also look at the bottom left corner, which is a right angle. All triangles containing right angles are right triangles.

You can also base your answer off of the fact that triangles are kind of like <u>G</u>oogle: They're always right. (jk no that's not true neither are always right)

Note:

If you're a Connexus student, please join my class on Quizlet using this link: https: // quizlet. com / join / 6nmuZyd2M (copy-paste into search, then take out ALL spaces)

8 0
2 years ago
Find the area of the triangle with a= 18.8, b= 11.6, c= 13.8. Round to the nearest tenth.
Anika [276]

Answer:

not rounded is 44.2, rouned to the nearest tenth is 40

Step-by-step explanation:

3 0
3 years ago
if it takes 10 minutes for 15 machines to make 5 widgets, how many minutes would it take 5 machines to make 15 widgets
pshichka [43]

The number of minutes it will take 5 machines to make 15 widgets is 90 minutes

Given that :

The time taken to make a widget is directly proportional to the number of widgets made and inversely proportional to the number of machines utilized.

Using the variation protocol defined :

Let :

n = number of widgets made

n = number of widgets made m = number of machines used

n = number of widgets made m = number of machines used t = time taken

Hence, from joint variation :

t α n α 1/m

t = kn/m

Where k = constant of proportionality :

Solving for k

When t = 10, n = 5, m = 15

10 = (k × 5) / 15

15 × 10 = 5k

150 = 5k

k = 150 / 5

k = 30

Equation becomes :

t = 30n/m

Solve for t ;

When m = 5 ; n = 15

t = (30 × 15) / 5

5t = 450

t = 450 / 5

t = 90

Hence, it will take 90 minutes.

Learn more : brainly.com/question/18796573

4 0
3 years ago
Other questions:
  • Solve 2x+4=xg solve for x
    14·1 answer
  • (5k + 3)(k + 1) = 0​
    10·1 answer
  • How do I factorize 16x²+32x+16?
    7·1 answer
  • I'll give a brainliest for the right answer.
    14·1 answer
  • Question 1 (1 point)
    5·1 answer
  • Which systems of equations has an infinite solution?
    7·1 answer
  • Which number is irrational √81 √169 √156 √144
    8·2 answers
  • HELP SUPER URGENT!!!!<br><br>​
    5·1 answer
  • The population of a town is 3200. The
    6·2 answers
  • What is the end behavior of f(x) = -2x5 - 6x3+ 4x2 - 8? A) It rises to the left and rises to the right. B) It rises to the left
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!