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
snow_lady [41]
4 years ago
11

how can you use the sine and cosine ratios and their inverses in calculations involving right triangles

Mathematics
1 answer:
Marysya12 [62]4 years ago
3 0

Answer:

Step-by-step explanation:

I will show you by example.  For the sin ratio, we have that the sin of the reference angle is equal to the side opposite the angle over the hypotenuse of the right triangle.  We use this example for finding the ratio, knowing the angle:

sin(60)=.866025 found on your calculator.  Because this is a special angle in a right triangle, we can also say, by looking at a 60 degree reference angle that the side across from the angle measures square root of 3, and the hypotenuse measures 2.  So in terms of a radical,

sin(60)=\frac{\sqrt{3} }{2}

If we don't know the angle, we use the 2nd button on our calculator to find it.  For example, if our problem looked like this:

sin\theta=\frac{1}{2},

we are asked what angle has a sin ratio of 1/2.  We find this angle by pressing the 2nd button on our calculator, then the sin button and you will see this on your screen:

sin^{-1}(

Enter either a .5 or a 1/2 after that open parenthesis and hit enter and you'll get the angle measure.  That's how you use the inverses to solve for missing angles.

You might be interested in
Can you help me please
schepotkina [342]
The answer to the problem is A) 20 feet below sea level
6 0
3 years ago
Answer this question I will Mark brilliant and gets 70 PTS <br>do number one or two or do both ​
yanalaym [24]

Answers And Explanations:

Question 1.

Pulling out like terms :

1.1     Pull out like factors :

  12y - 10  =   2 • (6y - 5)  

Equation at the end of step  1  :

  Divide both sides by  2  

 

 Divide both sides by  6  

 y-(5/6)  > 0

Add  5/6  to both sides

y > 5/6.

Therefore, y = 5/6

__________________________________

Question 2.

To make fractions improper with whole numbers, you must <u>multiply the Denominator by the whole number, then add the Numerator to the Product.</u>

<u></u>

First we multiply 32 by 5.

32 x 5 = 160.

Then we add the Numerator which is 1.

160 + 1 = 161, then we put it over the Denominator, your final answer is 161/5.

Therefore, 161/5 is your final answer.

Have any questions? Feel free to comment below!

Thank you and Best of Luck to you!

<u></u>

7 0
3 years ago
How many different triangles can you make if you are given these two lengths for sides?
kykrilka [37]

Answer:

Infinitely many triangles.

Step-by-step explanation:

Given the lengths of two sides are 8 inches and 10 inches.

Let's assume third side = x inches.

Using the Triangle Inequalities given as follows:-

1. a+b > c,

2. b+c > a,

3. c+a > b.

Using the lengths given in the problem, we can write:-

1. x+8 > 10 ⇔ x > 10-8 ⇔ x > 2.

2. x+10 > 8 ⇔ x > 8-10 ⇔ x > -2.

3. 8+10 > x ⇔ x < 18.

So, the solution set is 2 < x < 18. It means third side can take any value in interval (2, 18).

Hence, there are infinitely many triangles.

3 0
3 years ago
Read 2 more answers
There are about 795 house in this region . the average family size is 6 people . there
jekas [21]

Answer:

4770 people

Step-by-step explanation:

795*6= 4770

7 0
3 years ago
Blake drives 448 miles on 16 gallons. How many miles does Blake drive on one gallon?
Rus_ich [418]
28 miles! Just devide em hope it helped! Pls brainest
8 0
3 years ago
Read 2 more answers
Other questions:
  • The braking distance, D, of a car is directly proportional to the square of its speed, v. When d=5, v=10
    7·1 answer
  • I NEED HELP QUICK!
    6·1 answer
  • How many fractions are equivalent to 4/5?
    10·1 answer
  • hurry please if you answer this question I'll give you the brainliest the question is does the tail rotor help the helicopters t
    11·1 answer
  • The tax rate for Regina’s purchase is 8.75%. How much money did Regina spend at the store.
    14·2 answers
  • Philip has a box of crayons. 45 are yellow, 12 are green, 25 are blue, and 8
    14·1 answer
  • Give that the circumference of a circle is 44, find
    9·1 answer
  • Convince Me! why are there two possible solutions is valid in this situation.
    11·2 answers
  • Please help for brainliest !!
    8·1 answer
  • HELP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!