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
marshall27 [118]
3 years ago
14

Can someone explain how to use sin cos and tan on right angled triangles

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0

Here is the formula of sin cos tan :

sin x = opposite/hypotenuse

cos x = adjacent / hypotenuse

tan x = opposite / adjacent

d = hypotenuse

x = the angle known in your pic

like example if in your picture:

adjacent = 26.5

if want to find the d

cos x = adjacent / hypotenuse

cos 56 = 26.5 / d

d = 26.5 : cos(56)

d = 47.390 (3 significant figures)

and if want to find the opposite

tan x = opposite/adjacent

tan 56 = opposite/ 26.5

opposite = 26.5 × tan(56)

opposite = 39.288

-> Sorry if im wrong

eduard3 years ago
6 0
<h3>Answer:  d = 47.3897287242421 approximately</h3>

Round this however you need to

=================================================

Explanation:

The reference angle is 56 degrees. The side 26.5 is adjacent to this angle as it is the leg closest to the angle (in contrast to the opposite leg or opposite side that is furthest from the reference angle)

The hypotenuse is d. The hypotenuse is always the longest side. The longest side is always opposite the largest angle of a triangle.

We will use the cosine ratio as it is the ratio of adjacent over hypotenuse

cos(angle) = adjacent/hypotenuse

cos(56) = 26.5/d

d*cos(56) = 26.5

d = 26.5/cos(56)

d = 47.3897287242421

You use your calculator for the last step shown above. Make sure your calculator is in degree mode. Round that value however you need to.

You might be interested in
Two angles in a triangle have measures of 13° and 65° what is the measure of the third angle
natulia [17]

Answer:

102

Step-by-step explanation:

All angles added together=180

180-13-65

180-78

102

8 0
2 years ago
Both questions plzzz thanks
andrew11 [14]

Answer:

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the loan.

P represents the principal or amount taken as loan

R represents interest rate

T represents the duration of the loan in years.

1) From the information given,

P = cost of gym = $2200

R = 6%

T = 3 years

I = (2200 × 6 × 3)/100 = $395

The total amount that he would pay after 3 years is

2200 + 395 = $2596

If he decides to continue going to the gym, the total amount that the would pay in 3 years(3 × 12 = 36 is

80 × 36 = 2880

Therefore, paying for the gym would cost more. He should take the loan.

2) if she takes the loan, the interest would be

I = (18000 × 7.5 × 5)/100 = $6750

The total amount that she would pay back after 5 years is

6750 + 18000 = $24750

Since the value that would be added to her house is $25000, therefore, she should buy it.

6 0
3 years ago
Lve.<br>1. Jeremy spent $33 on 3 CDs. At this rate, how much would 5 CDs cost?​
IrinaVladis [17]
It will coast $55 for 5 CDs
6 0
3 years ago
Read 2 more answers
X-(-4) = 10<br> X=<br> Answer here
Alinara [238K]

Answer: x = 6

Step-by-step explanation:

X - (-4) = 10

X + 4 = 10

X = 10 - 4 = 6

8 0
3 years ago
Read 2 more answers
Teri has $6 less than does her sister, Jennie, who has x dollars. Teri
elixir [45]

The expression for the amount of money, in dollars, Teri has is x-2.

Since Jennie has x dollars while Teri has $6 less than does Jennie, this means that Teri will have: x - 6

Since Teri does not spend any money and earns $4, the the total amount that Teri has will be:

= x - 6 + 4

= x - 2

Therefore, Teri has x-2.

Read related link on:

brainly.com/question/24499674

4 0
2 years ago
Other questions:
  • A random sample of 36 students at a community college showed an average age of 25 years. assume the ages of all students at the
    6·1 answer
  • When multiplying a decimal do you move it forward or backward
    9·1 answer
  • How many calculations can this computer preform in one minute?
    11·1 answer
  • In how many ways can Susan arrange 7 books into 5 slots on her bookshelf?
    15·1 answer
  • What is the surface area of the square pyramid
    14·1 answer
  • A train goes at a constant speed. If it covers 150 miles in 2 1/2 hours,
    6·1 answer
  • Use the equation below to find T, if w= 70, m= 11, and a = 3.
    6·1 answer
  • Which is the best sale?
    15·2 answers
  • a real estate agent sells a house for $360,000. the amount was 30% of her sales for the entire week. which equation could be use
    15·2 answers
  • !!!!!!!!!!!!!!!!!!!!!!!HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> (5y+2)·(y-3)=-13·(2+y)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!