What is the equivalent trig ratio to cos 18 ?

Answers

Answer 1

Answer:

[tex]\sin{72^\circ}[/tex]

Step-by-step explanation:

In a right triangle, the two acute angles are complementary--they add up to 90 degrees.

Cosine is defined as the adjacent side divided by the hypotenuse. In the attached picture, [tex]\cos{18^\circ}=\frac{a}{h}[/tex].

The other acute angle is 90 - 18 = 72 degrees. Looking at just that angle, side a is the opposite side. So the ratio a/h is opposite over hypotenuse -- the sine ratio.

Therefor, [tex]\cos{18^\circ} = \sin{72^\circ}[/tex]

Related Questions

I NEED HELP I AM DESPERATE PLEASE JUST HELP ME

THE AREA IS ___ SQUARE UNITS

Answers

Answer:

50 units

Step-by-step explanation:

First find the length and width by using distance formula.

QR = Square root of 25 =5

RS = Square root of 100 =10

Area = 10×5 = 50

x + 10 > 13 Solve the inequality

Answers

Answer: x>3

Step-by-step explanation: Hope this help :D

Answer:

x > 3

Step-by-step explanation:

13 - 10 = 3

since x and 10 is supposed to be bigger than 13, it should be more than 3.

The radius of a cylindrical construction pipe is 3.5ft . If the pipe is 38ft long, what is its volume? Use the value 3.14 for (pie symbol) , and round your answer to the nearest whole number. Be sure to include the correct unit in your answer.

Answers

Answer:

1462 cubic ft

Step-by-step explanation:

The volume of a cylinder can be found using the equation [tex]\pi r^{2}h[/tex]=V. The radius is 3.5 ft and the height is 38ft.

[tex](3.14)(3.5^{2})(38)[/tex]=V

(3.14)(12.25)(38)=V

1461.67=V and rounded to the nearest whole numbe, 1462 cubic ft=V

Ainsley works for the owners of a bookstore. Her starting salary was 24,500, and she gets a 3% raise each year. Write an equation in function notation to represent subsidy’s salary as a function of the number of years she has been working at the bookstore. What will Ainselys salary be when she begins her fourth year working at bookstore?

Answers

Answer:

if x is the number of years she is working that the equation would be: 24,500+x*((3/100)*24,500)

Step-by-step explanation:

For her 4th year x would be 4, so for the equation above x=4:

24500+4*((3/100)*24500)=27440

What is angle m1 and angle m2?

Answers

Answer:

1) 122 2)58

Step-by-step explanation:

Answer:

m1 = 122°

m2 = 58°

Step-by-step explanation:

angle 1 = 122° rule of vertical angles

180° -122° = 58°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

2.6 divided by 97.526

Answers

Answer:

Step-by-step explanation: how do u supposed to divide that???

Answer:

Just put it into a calculator

Step-by-step explanation:

A piece of pizza with a diameter of 20 inches is eaten and m

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Answer:

Step-by-step explanation:

solve for x round to nearest tenth

Answers

Answer:

33.3

Step-by-step explanation:

tan A = opp/adj

tan 39° = 27/x

x tan 39° = 27

x = 27/(tan 39°)

x = 33.3

Brianna's teacher asks her which of these three expressions are equivalent to each other. which is equivalent

Answers

Answer:

Please specify what the three expressions are.

Step-by-step explanation:

From what I understand, you need to set the expressions equal to each other. For instance, if one is 2(x-3) and the other is 2x-6, you could write it as:

[tex]2(x-3)=2x-6[/tex]

Then, by evaluating it, you would get:

[tex]2x-6=2x-6[/tex] by distribution over subtraction.

[tex]2x-6+6=2x-6+6[/tex] by the additive property of equality

[tex]2x=2x[/tex] Simplify.

[tex]x=x[/tex] by the reflexive axiom.

Since x will always equal itself, 2(x-3) and 2x-6 are equivalent.

Therefore, if the expressions, once set equal to each other, result in the equation x=x, or any other expression in which one quantity equals itself, the two expressions are equal.

Sorry I could not be of more help, but you did not specify what the expressions were.

How much does each fruit cost?

Answers

Answer:

They cost 25c

Step-by-step explanation:

100÷4 is 25

and boom mark brainliest pls

i need help no ilnks please and thank you

Answers

C - because the line is going in somewhat of a line, and it is pointing up, so it’s positive.

A restaurant has 50 tables.
40% of the tables have 2 chairs at each table.
The remaining 60% of the tables have 4 chairs at each table.

Complete the model.
Then complete the statements to find the total number of chairs in the restaurant.

Answers

Answer:

160

Step-by-step explanation:

2+2 is 4 - 60 - 10 is 50 so it 120%
Just trying to get more points this is not right

Round to the nearest ten thousand 738,424

Answers

Answer:

740,000

Step-by-step explanation:

Because 38,000 rounds up to 40,000

the answer is 740,000

Pls help me I really need it.

Answers

Answer: its the first one i think

Step-by-step explanation

Answer:

87,069.6 cm³

Step-by-step explanation:

V = (4/3)πr³

r = d/2 = 55 cm/2 = 27.5 cm

V = (4/3)(3.14)(27.5 cm)³

V = 87,069.6 cm³

hey can someone help me with this immediately! i’ll be giving out brainiest if u don’t leave a link and don’t guess!

Answers

Answer:

60 minutes

Step-by-step explanation:

You need to continue the straight line to the point (10, 100) and read off the graph for 6 miles.

Pleas help!!!!!!!!!!

Answers

Yes B is the correct answer

24 is 44% of what number?

yall i have exams tomorrow and i have no clue how to do percentages TwT helppp

Answers

Answer:

24 is 44% of 54.55

Step-by-step explanation:

24 ÷ 44% = y ÷ 100%

Solve for y - To do so, we will use cross multiplication.

44y = 24 × 100

44y = 2400

y = 2400 ÷ 100

y = 54.55

Select the correct answer.

In circle C, RT = 6, RS = 10, and QT = 3. What is the length of line segment PQ?

A.
8
B.
11
C.
13
D.
20

https://cdn.app.edmentum.com/EdAssets/02c85e5af37247d2a810eabe390c24d8?ts=636776634445830000
photo^

Answers

Answer:

your answer gonna be the letter D 20

PLEASE ANSWER ASAP!!!!!!!!!! At what rate is the amount of flour decreasing per minute if the original amount is 630?

Answers

Did you figure it out?

I NEED HELP ON THIS ASAP!!!

Answers

Answer:
A. Plant C is 0.64 times as tall as Plant B
B. Plant C is 2.4 inches shorter than Plant B

Can someone please help me with math.

Answers

Answer:

your answer is B for number one

Answer:

b, d, a

Step-by-step explanation:

SM1 HELP ASAP ILL GIVE BRAINLIEST

Answers

Answer:

Step-by-step explanation:

you add 2 & 3 ... you get 4. then you add 2 & 4 ... you get 6.

im not sure what to say there is my question

Answers

same....thanks for the points though!!

A line passes through the points (1, 9) and (0, 4). What is its equation in slope-intercept

Answers

I need to see the pic put the pic on

pls help me with this question guys, no links pls, thank you very much

Answers

Answer:

29.4

Step-by-step explanation:

mC = 180 - 46 - 105 = 29

By Law of Sines: c/sin C = a/sin A

19.8/sin 29° = a / sin 46°

19.8/0.484 = a/0.72

a = 29.45 ≈ 29.4

What is the area of circle W?

Answers

H⁣⁣⁣⁣ere's l⁣⁣⁣ink t⁣⁣⁣o t⁣⁣⁣he a⁣⁣⁣nswer:

bit.[tex]^{}[/tex]ly/3a8Nt8n

Extend Your Skills
Perimeter = 30 in.
Area = ?

Answers

Answer:

Step-by-step explanation:

the length of the missing side is 7

so 7 x 8 = 56

To find the missing side:

You must add 8 + 8 = 16

Subtract 16 from the total perimeter = 14.

Divide 14 by 2 = 7 you divide by two since there are two missing lengths and when you add them they have to equal to 14.

What is the measure of x

Answers

Answer:

Step-by-step explanation:

it has to add up to 180 do 118 plus 62 is 180

Solve for x. 3.6x + 4.8 = 19.92

Answers

the x should equal 4.2

Answer:

X = 4.2

Step-by-step explanation:

3.6 x 4.2(x) + 4.8 = 19.92

I hope this helped!!

Divide 5/9 round to the nearest tenth

Answers

Answer:

0.55

Step-by-step explanation:

5 divided by 9 = 0.55

Answer:

0.6

Step-by-step explanation:

5/9=0.55555555555...

since the hundredth digit is a 5 you round up to 0.6

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