solve the sin, cos and tan of -240 degrees without calculator. Show Working​

Answers

Answer 1

Step-by-step explanation:

sin(-240)°.

=cos(270-240)°

=cos 30°

=√3/2

cos(-240°)

=sin(270°-240°)

=sin30°

=0.5

tan(240°)

=tan(270°-240°)

=tan30°

=1/√3


Related Questions

A box contains 30 marbles, of which 8 are
black, 10 are green, and 12 are yellow. If two
marbles are drawn at random, what is the
probability that both the marbles will NOT be
green?

Answers

Answer:

4/9

Step-by-step explanation:

'ng' = not green

P(ng,ng) = 2/3 x 2/3 = 4/9

Which statement is true?
A. 2(3 + 4) = 2(3) - 2(4)
B. 2(3) + 2(4) = 2(3 + 4)
C. 213 + 4) = 2(3) • 2(4)

Answers

Answer:

B is correct.

Larry sometimes leaves garbage on top of the lunch tables at school and assumes the janitor will pick it up. Does this action show good citizenship? Explain your answer.

Answers

Answer:

No, this is not showing good citizenship.

Step-by-step explanation:

I said no because Larry is assuming that the janitor will pick it up for him, which is only giving the janitor more work to do. So Larry's action, therefore, does NOT show good citizenship. UwU

i will give brainliest to the right answer:)

Answers

Answer:

3/8

Step-by-step explanation:

Use the graph to answer the question.
Which equation describes the circle?
O (x-4)2 + (y + 1)2 = = 25
O (x – 4)2 + (y + 1)2 = 5
O (x + 4)2 + (y- – 1)2 = 25
O (x + 4)2 + (y – 1)2 = 5

Answers

Answer:

Its A.

Step-by-step explanation:

Edge 2021

This question is based on the equation of circle. Therefore, the equation of circle is (x - 4)² + (y + 7)² = 81 describes a circle with center (4, -7) and radius 9.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. The perimeter around the circle is known as the circumference.

here, we have,

Given:

A circle with center (4, -7) and radius 9.

We need to determined the equation describes a circle with center (4, -7) and radius 9.

According to the question,

As we know that, the equation of a circle in standard form is

⇒ (x - h)² + (y - k)² = r²

Where (h, k) are the coordinates of the center and r is the radius.

Here, it is given that,  (h, k) = (4, - 7) and r = 9.

Therefore, by putting the given values.

We get,

⇒ (x - 4)² + (y - (- 7))² = 9², that is

⇒ (x - 4)² + (y + 7)² = 81 ← equation of circle

Therefore, the equation of circle is  (x - 4)² + (y + 7)² = 81 describes a circle with center (4, -7) and radius 9.

For more details, circle prefer this link:

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Tell me how you solve this and ill mark you brainlist

Answers

Step-by-step explanation:

use this formula

:))))))

Answer:

5 years

T= 100× I = 100×10

P×R= 100× 2= 500

Remove the zeros = 5years

Triangle ABC is shown below with its given side length measurements.
Which lists the angles of the triangle in order from largest angle to smallest
angle? *

Answers

Ans
Option A
Because the smallest angle is opposite to shortest side and largest angle is opposite to largest side.

467.4 + 0.492 =

PLS HELP​

Answers

Answer:

467.892

Step-by-step explanation:

467.4+0.492 =467.892

467.892

hope it helps you.

Which choice shows the product of 22 and 49?

Answers

what are the choices?

Product of 22 and 49 is

(22)(49) = 1078

Option C

Given :

the product of 22 and 49

Explanation :

We need to find which option is correct to find product of 22 and 49

Product mean multiplying the numbers

so we need to multiply 22 and 49

22

49

----------

198

88

-------------

1078

So the product of 22 and 49 is 1078

(22)(49)=1078

Option C is correct

1. Savannah has 5 dogs and she feeds each of them 6 oz of dog food every day. How many
pounds of dog food do they eat each day?

Answers

Answer:

0.375 lb

Step-by-step explanation:

For this one all you need to do is convert 6 oz to pounds and to do this

For example to convert an ounce measurement to a pound measurement, use a simple formula. Since one ounce is equal to 1/16 of a pound, the formula for the conversion is:

pounds = ounces ÷ 16

1. Take measurement

2. Divided ounces by 5

3. Round the result to desired decimal places.

And don't just put this answer because I am not very sure.

1.875 pounds of dog food can be eaten by 5 dogs per day.

Pound and ounce based problem:

What information do we have?

Number of dogs = 5

Each dog eats per day = 6 oz

Total dog food eaten per day = Number of dogs × Each dog eats per day

Total dog food eaten per day = 5 × 6

Total dog food eaten per day = 30 oz

1 pound = 16 oz

So,

Total dog food eaten per day = 30oz / 16oz

Total dog food eaten per day =  1.875 pound

Find out more information about 'Pound'.

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What is 5/12 of 7/8?

Answers

Answer:

35/96

Step-by-step explanation:

Of means multiple so just multiply 5/12 and 7/8 and simplify the answer is 35/96

Please help and no the answer is not 19.575

Answers

The answer is correct the reason it’s probably wrong is because with money you can’t have .575 cents. so your answer would be 19.58

Answer:

do you need to simplify the answer? because if so... its $19.57 i dont know what you dont get so please explain to me

Step-by-step explanation:

Is there
a way to place 29 books on shelves so
that each shelf has the same number of books,
with more than one book on each shelf?
Explain.

Answers

Answer:

no

Step-by-step explanation:

no because 29 is a prime number, meaning its only factors are 1 and 29. if you were to have more than 1 book on each shelf then you would go into half and quarters of books.

Answer:

29 is only divisible by 1 and 29

so

you could either do one on each shelf or all 29 on one shelf

Use the map shown. Each grid on the map represents 1 city block.
Yoko walks from the library to the mall. How many city blocks does she walk?

Yoko walks ___ blocks.

Answers

Answer:

it is a reflection

the points are 8 units apart

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-Lil G

Answer:

i thinks it 8 blocks!! sorry if im wrong


Find the area of the figure.
A)
30 cm
B)
36 cm?
42 cm?
D
48 cm
12
2

Answers

Answer:

oop

Step-by-step explanation:


Consider two consecutive odd positive integers. If their product is 23 more than their sum, what
are the two integers?

Answers

Answer:

Find two consecutive odd integers whose product is 23 more than their sum. Let x & x+2 be the 2 integers.

Step-by-step explanation:

The value of two consecutive odd positive integers are 5 and 6.

What are Integers?

A whole that can be positive , negative and zero is called integers.

Given that;

The product of two integers is 23 more that their sum.

Let two consecutive odd positive integers are x and x + 2.

Now, By the given condition we can formulate;

x (x + 2) = 23 + x + (x + 2)

x² + 2x = 23 + 2x + 2

x² + 2x = 25 + 2x

x² = 25

Take square root;

x = √25

x = ± 5

Since, Numbers are positive.

So, x = 5

And x + 1 = 5 + 1 = 6

Thus, The value of two consecutive odd positive integers are 5 and 6.

Learn more about the integers visit:

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Find the perimeter of a rhombus with side of 10 m.
perimeter =
m

Answers

Answer:

the perimeter equals 40m

explanation:

P=4a=4 x 10=40m

3(6) + 4(2) - 5
What is the answer

Answers

Answer:

21

Step-by-step explanation:

3(6) +4(2) - 5

18 + 8 - 5

26 - 5

= 21

65 decreased by twice a number

Answers

I believe it is 67-67=2 I might be wrong

The world record for running the marathon is about 26 miles in 130 minutes. How long would a runner at that speed take to run 9 miles?

Answers

45 minutes
26/130=9/45

Polynomial long division problem 25 points

Answers

Answer:

  this is the simplify answer

2x^3−5x^2+x−10/  x^2−4x+1

Step-by-step explanation:

hope i helped

The product of twice a number and five is the same as the difference of nine times the number and 3/4. Find the difference

Answers

Answer:  

I think the answer is -3/4

Step-by-step explanation:

Let x = a number

(2x)(5) = 9x - (3/4)

10x = 9x - (3/4)

Subtract 9x on both sides of equation.

x = -3/4

Simplify (7ty)(3t)
(answer fast please)

Answers

21t^2y is the answer!

Answer:

I think they are correct

Is the product of 12 and
3/4
more or less than 12? Explain your answer In complete sentences.

Answers

Answer: The product of 12*3/4 is less than 12

Step-by-step explanation: I can see this right from the start by noticing that to be at least 12, then 12 would have to be multiplied by at minimum 1 meaning 12*1=12 anything less than 1 would result in a lesser value than 12

Help please help please

Answers

Answer: 20x

expalnation: Not sure about the second one  but the first problem is a trick problem your finding the mean. but it already brought the equation down to 1 so 20 is the answer  

Help help (12 points)

Answers

Answer:

2m+2m

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

m+m+m+m=4m

4m-2m=2m

_m=2m

2

Which function has a greater rate of change?

Answers

Answer:y-2x+5

Step-by-step explanation: I think

help pleaseeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The Answer is A. (0,9) hope I helped you

Help!!!! Cause this is my bro work

Answers

Answer:

E

Step-by-step explanation:

Suppose I have a wooden cube, which I then split into eight equal pieces. If I give you two of those pieces, and then give you three more, what fraction of the original cube do I have left? Express your answer in decimal form.

Answers

Answer:

.625

Step-by-step explanation:

Since the amount of pieces are 8, and you gave 5 away, you have to divide 5 by 8. This gives you .625

Answer:

0.375

Step-by-step explanation:

You would have 3/8 of the original cube left. 0.375 in decimal form.

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