Find cos 30 in terms of cos 0

Answers

Answer 1

Answer:

cos(30) = (sqrt(3)/2) * cos(0)    

Step-by-step explanation:

cos(0) = 1

cos(30) = sqrt(3)/2

Thus, we can write that:

cos(30) = (sqrt(3)/2) * cos(0)


Related Questions

Which of the numbers below is greater than zero? Select all that apply.
A)0.8
B)4.5
C)14
D)−2.25
E)−0.5

Answers

your answer is B) 4.5 and C) 14

en la feria del condado, la calabaza con la cinta roja pesaba 108 libras menos que la calabaza con la cinta azul. cuanto pesaba la calabaza con la cinta azul?

Answers

Answer:

sorry i dont know

Step-by-step explanation:

welp. this is 9marks question​

Answers

Answer:

4

Step-by-step

one number is 6 more than the other number. also, 7 times the smaller number is equal to 6 times the larger number. find the two numbers.​

Answers

Answer:

x = 36; y = 42

Step-by-step explanation:

x+6 = y

7x = 6y

7x = 6(x+6)

7x = 6x+36

-6x  -6x

x = 36

_________

y = 36+6

y = 42

_________

Taco Tuesday math paper restraint

Answers

May we have details so we know how to answer

what is 3/5 x 7/9 equivalent to 3/5 divided by 7/9

Answers

Step-by-step explanation:

It's 27/35, so 27/1 * 1/35

Answer:

0.31  (correct me if I'm wrong)

Step-by-step explanation:

3/5*7/9=0.463/5 divided by 7/9=0.770.77-0.46=0.31

Find the equation (in terms of x ) of the line through the points (-1,4) and (2,-5)

Answers

Answer:

( 1 , -3 ) for every +1 on the x line you go -3 on the y I hope this is what you need

PLS HELO THANK YOUUUUU

Answers

Answer:

divide 500 by 125.

You get 4x = 568

Answer is 142

Happy Learning

Answer:

142

Step-by-step explanation:

Simplify and show work I need help

Answers

Answer: 6x^4-2x^2x5x+2x^2

Step-by-step explanation:

Wooden flooring costs £35 per square metre. The floor is then edged with a narrow wooden strip which costs £4 per metre.

How much does it cost for a 6m by 4m room, including the edging?

Answers

Answer:

£920

Step-by-step explanation:

We need to find the area of floor to find the cost of the flooring, and then we need to find the perimeter of the floor to find the cost of the edging.

A = LW = 6 m × 4 m = 24 m²

Cost of flooring: 24 m² × £35/m² = £840

P = 2(L + W) = 2(6 m + 4m) = 2(10m) = 20 m

Cost of edging: 20 m × £4/m = £80

Total cost:

£840 + £80 = £920

Graph the line whose x-intercept is -5 and whose y-intercept is -9.

Answers

Here is how you're line should look!

Find the equation of the linear function represented by the table

Y 2 7 12 17
x 1 2 3 4

Answers

Answer:

Step-by-step explanation:

(1, 2) (2, 7)

(7-2)/(2 - 1) = 5/1= 5

y - 2 = 5(x - 1)

y - 2 = 5x - 5

y = 5x - 3

A normal conversation is about 10^7 times the threshold of hearing. Compute the intensity level (in decibels) for a normal conversation.

Answers

Answer:

70

Step-by-step explanation:

The sound of a normal conversation 3  is  times intense than the sound of a computer.

What is sound intensity?

It is the energy flow per unit area. It refers to the product of pressure and velocity of particles in a fluid medium, which is equivalent to the power received per unit area.

Let us say the sound intensity of the quietest noise a person can hear is 60 decibels. So the sound intensity of computer is 20 decibels.

Sound intensity of a normal conversation/ computer sound, will be:

[tex]SI=\frac{60}{20} =3[/tex]

Therefore, the sound of a normal conversation 3  is  times intense than the sound of a computer.

See more about sound intensity at brainly.com/question/17062836

The Davis's drank 9 gal 1 qt of milk last month and 7 gal 2 qt this month. How much milk is that?

Answers

9 gallons + 7 gallons = 16 gallons

1 qt + 2qt = 3 qts

Total = 16 gallons and 3 qts.

The associative property is shown by the following: 5(3+1)=5(3) + 5 (1)

Answers

False, that’s the distributive property

- 4. What is the roster form of the set K = {x/x are odd numbers from 2 to 8} ? A. H = {2, 4, 6, 8} C. H = {3, 4, 5, 6, 7} B. H = {3, 5, 7} D. H = {2,8} 1 2 3 ? Which method for theiva CIV & CLUJ -​

Answers

Answer:  H = {3, 5, 7}

Explanation:

We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.

Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.

I NEED A 100% ACCURATE ANSWER FOR THIS ASAP NO LINKS !!!
Solve the following: 7y−20=3y+12
1: y= 3.2
2: y=8
2: y= -8
4: y= 28

Answers

It is b. Y=8. Steps are in picture.

Answer:

I think its y=8

Step-by-step explanation:

7y-20=3y+12

7y-3y=12+20

4y=32

y=32/4

y=8

Describe the error Sadie made, and explain how to find the correct answer.

Answers

Answer:

did not simplify correctly

Step-by-step explanation:

just cuz

(12c(5th power)) x 3c(4th power)

How do we simplify this equation?

Answers

Answer:

You can combine the powers and bases to get 36c^9

Step-by-step explanation:

12*3=36

Rule of exponents= n^m*m^n is (n*m)^m+n

Hope this helps.

please I need the answer right now.

Answers

3/10, this shouls be correct

PLEASE HELP ME WITH THIS QUESTION PLEASE

and show your steps please I really need help with this question please help please

Answers

Answer:

a. 2.2 m

b. 8 m

Step-by-step explanation:

4) a. Sin 32 = x/4

= (sin 32)(4) = x

b. Cos 65 = 4.5/x

x = 4.5/Cos 65

(-10)-[9+(-3)]×2²÷(-8)

Answers

Answer:

-7

Step-by-step explanation:

-7 is the answer……………….

simplify (3x³)⁴.......​

Answers

Answer:

(3x)¹²

Step-by-step explanation:

(3x³)⁴ can be simplified into (3x)¹²

The simplified value of the given expression is 3x¹²

What is simplification?

Simplification is the process of replacing a mathematical expression by an equivalent one, that is simpler, usually shorter.

Given that, an expression (3x³)⁴

Using the identity = (xᵃ)ᵇ = xᵃᵇ

(3x³)⁴ = (3x)³ˣ⁴ = 3x¹²

Hence, the simplified value of the given expression is 3x¹²

Learn more about Simplification , click;

https://brainly.com/question/2804192

#SPJ2

Pythagorean theorem digital escape can you find the length and area and type the correct code? ​

Answers

The length of TU in the right triangle is  156.15 m.

The area of the rectangle is 12335.85 m²

The length of GH in the right triangle is 182.33 m

The area of the triangle is 8934.17 m²

Right angle triangle

Right angle triangle are triangle that has one of its angle as 90 degrees. The sides of the triangle can be found using Pythagoras theorem. Therefore, using Pythagoras theorem,

TU² = 175² - 79²

TU² = 30625 - 6241

TU² = 24384

TU = √24384

TU = 156.153770368

TU = 156.15 m

area of rectangle = lw

area of rectangle =  156.15 × 79

area of rectangle =  12335.85 m²

GH² = 207² - 98²

GH² = 42849 - 9604

GH² = 33245

GH = √33245

GH = 182.33211456

GH = 182.33 m

Area of the triangle = 1 /  2 bh

Area of the triangle = 1 /  2 × 98 × 182.33

Area of the triangle = 17868.34 / 2

Area of the triangle = 8934.17 m²

learn more on right triangle here: https://brainly.com/question/22897958

If F(x) = 12x/(3 + x2), find F '(3) and use it to find an equation of the tangent line to the curve y = 12x/(3 + x2) at the point (3, 3).
F '(3) =
y(x) =

Answers

Answer:

f=12

yx=88

Step-by-step explanation:

Please help what is 399/20 simplified

Answers

Answer:

19 19/20 in fraction

19.95 as a decimal

Step-by-step explanation:

Answer:

19 and 19/20

Step-by-step explanation:

The bar in a fraction stands for dividing

so you divide 399 by 20 which is 19 and 19 remainder

you turn the remainder into a fraction and the number into a whole number

please help with question.

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The given pair of lines are parallel to one another ~

The solution is in attachment

Answer:

neither

Step-by-step explanation:

Triangles PQR and XYZ are similar. What is the length of XZ?

Answers

3x3x3x3x3= you do the math

What does it mean to “solve” the following equation for y.

Answers

Solve for 'y' means find the equation to get the value of y.

What is the answer to this equation

Answers

Answer:

-34/45

Step-by-step explanation:

first step you wanna do is Multiply the numbers -1/5- 1 (-2/3)- (5/6)= -1/5 and -5/9 then subtract those two fractions and you get -34/45 since both of the fractions were negative the answer results as a negative aswell

Other Questions
Three cubes with volumes 8 cm3, 27 cm3 and 64 cm3 are glued together to form a solid figure. What the least possible surface area (cm2) of the solid figure? please solve this question... what is the only country in the world with a bible on its flag? During the Progressive Era, what was the goal of antitrust legislation?.to break up monopoliesOB.to protect natural resources.to establish an income taxODto promote imperialism Evaluating the Effectiveness of an ArgumerTry itAbelIn a well-structured paragraph, state the claim of theprevious passage and evaluate the effectiveness of theevidence the authors present to support it. Evaluate the expression for y = 2. Simplify your answer.4/y= can someone pls help me with solving one variable expressions pls show your work too so i can understand thanks lagyan ng akmang note Ang bawat patlang upang mabuo Ang rhythmic pattern sa time signature Write 840 g as a fraction of 4 kg. In right triangle PQR, PR = 17, RQ = 15,= 15,and PQ = 8. What is tan P? Identify the domain and range of the relation is the relation a function? Imagine that you are going to recommend a pet to someone. What are three questions you would ask them to help make that recommendation? MATHPLEASE HELP!!!!! ASAP thank you so much! How many letters are in my abc Put the abcs Given the function y= {3x+1 if x0,x2 if x A box of 15 cookies costs $9.What is the cost for 1 cookie? $_____ A) half as muchB) as muchC) two times as muchD) three times as much PLS HURRY 30 POINTS!!!You dont have to fill out every number, just give as many as you can list. The difference of thirteen and a number. Geometry questions need some help