What do cos and sin mean?

Answers

Answer 1

Answer and Step-by-step explanation:

These two terms (pronounced as Sine and Cosine) are used to solve for the sides and angles of a triangle in Trigonometry.

They are functions revealing the shape of a right triangle.

Sine is a trigonometric function of an angle. The sine of an acute angle is defined in the context of a right triangle: for the specified angle, it is the ratio of the length of the side that is opposite that angle, to the length of the longest side of the triangle.

Cosine is also a trigonometric function of an angle. The cosine of an angle is the relation of the length of the side that is adjacent that angle, to the length of the longest side of the triangle.

#teamtrees #PAW (Plant And Water)


Related Questions

use the least common denominator to enter an equivalent fraction for each fraction

1/7, 1/8
The least common denominator of the fraction is ___

1/7=
1/8=

Answers

Answer:

56

Step-by-step explanation:

LCD = 56

Equivalent Fractions with the LCD

1/7 = 8/56

1/8 = 7/56

Assume the selling price of your house calculate the
commission amount of your house if the commission rate
is 5•/•​

Answers

Answer:

$14000

Step-by-step explanation:

Given that :

Commission 5% of sale price

Sale price of house = $280,000

Commission = 5% of $280,000

Hence,

Commission = 0.05 * $280,000

Commission = $14,000

Bobby mows his neighbors' lawns to raise money to buy a new bike. He charges $5 and then $10 for each hour it takes him to mow the yard. He uses the equation C=5+10h to calculate costs. How many hours does he have to mow for if the bike costs $165?

Answers

Answer:

$16

Step-by-step explanation:

Given data

Flat Charge= $5

Fee per hour= $10

The expression describing the total cost is

C= 5+10h

For C=$165, we can find h as

165=5+10h

165-5=10h

160=10h

h= 16

Hence the cost per hour would be $16

Select all that are equivalent to 4/16
1/5
0.25
0.252525
25%

Answers

Answer:

0.25 and 25% are equivalent

Step-by-step explanation:

In the image, point A is the center of the circle. Which two line segments must be equal in length?

Answers

The answer is C (EF and HI)

This is because both lines pass through the centre A, meaning both are diameters. Hence, they are equal in length.

HELP DUE IN 10 MINS!

Given a circle with a central angle of 80° and a radius of 27 cm, determine which of the following statements are true. Select all that apply!

A. The area of the sector is 81 π


B. The area of the circle is 729 π


C. The circumference of the circle is 27 π


D. The arc length of the sector is 12π

Answers

Answer:

[tex]\checkmark \text{B. The area of the circle is } 729\pi,\\\checkmark \text{D. The arc length of the sector is } 12\pi[/tex]

Step-by-step explanation:

Area of a circle with radius [tex]r[/tex]: [tex]r^2\pi[/tex]

Circumference of a sector with radius [tex]r[/tex]: [tex]2r\pi[/tex]

Area of sector with angle [tex]\theta[/tex]:  [tex]r^2\pi\cdot \frac{\theta}{360}[/tex].

Arc length of sector with angle [tex]\theta[/tex]: [tex]2r\pi\cdot \frac{\theta}{360}[/tex]

Using these equations, we get the following information:

Area of circle: [tex]27^2\pi=729\pi[/tex]

Circumference of a circle: [tex]2\cdot 27\cdot \pi=54\pi[/tex]

Area of sector: [tex]27^2\pi\cdot \frac{80}{360}=162\pi[/tex]

Arc length of sector: [tex]2\cdot 27\cdot \pi \cdot \frac{80}{360}=12\pi[/tex]

miss bella's mathematics class consists of 6 sophomores 12 juniors and 10 seniors how many different ways can miss bell create a five member committee of seniors if each senior has an equal chance of being selected

Answers

Answer:

792

Step-by-step explanation:

Triangle JKL has the coordinates listed: J (5, -8), K (10, -8), L (7, -4) Where is J’ after a reflection over the y-axis?

Answers

Answer:

The Rule for reflection over the y-axis is given by (x,y) to (-x,y).

so, J' (-10,-8)

✐----------------------

hope it helps...

have a great day!

Answer:

J' Coordinates = (-5, -8)

Step-by-step explanation:

We know that in the coordinate point J (5, -8);

x-value = 5

y-value = -8

In order to reflect J over the y-axis, we will keep the y-value of the coordinate same and then reverse the x-value to it's opposite, Therefore the J' coordinates would be;

x-value = -5

y-value = -8

J' Coordinates = (-5, -8)

Hope this helps!

PLEASE HELP!!!
Factorize x^2 -9

Answers

Answer:

(x + 3) (x - 3)

Step-by-step explanation:

We know that;

a = 1

b = 0

c = -9

We also know that;

p*q = -9

p + q = 0

In this case, it would make the p value 3, and q value -3

The factorized form would be;

(x + p) (x + q)

=> (x + (3)) (x + (-3))

=> (x + 3) (x - 3)

So therefore, the factorized form;

(x + 3) (x - 3)

Hope this helps!

Answer:

the answer is (x + 3)(x - 3)

Identify the vertex:
f (x) = -x^2+ 10x

Answers

Answer:

(5,25)

Step-by-step explanation:

Help please asap tysm! 10 brainly points! Will mark brainliest if you put in a random answer you will be reported! Tysm! <3 Need this asap please tysm!

Answers

Answer:

The length of side EF is 10 units.

If there is any specific measurement for each unit, multiply 10 by the measurement amount.

Answer:

10 units

Step-by-step explanation:

The side of EF is 10 units

The side of DE is 10 units

The side of DF is about 14.1 units

find m
PLEASE I NEED HELP ASAP PLZZZ

Answers

Answer:

M means measure so you're finding what PQR is

m∠PQR = about 60°

What are the solutions to the equation x2 + 4x – 12 = 0? O A. x = -6 and x = 2 O B. x= -4 and x= 3 O C. X=-3 and x = 4 D. x = -2 and x = 6​

Answers

Answer:

the answer is A.

Which graph represents equation (x-4)^2+(y+2)=16
F
H
G
I

Answers

Answer: Choice G  (lower left corner)

Why is this? Recall that (x-h)^2+(y-k)^2 = r^2  is the general template of a circle. The center being (h,k) and the radius is r.

For the equation (x-4)^2+(y+2)^2 = 16, we have a center of (4,-2) and radius 4. Note that 4^2 = 16.

The graph of choice G shows these properties so that's why it's the answer. Keep in mind that each tickmark represents 2 units. Choice I is close since the center is correct but the radius is too small.

Rachel has 90p. Simon has £2.
Write the ratio of the amounts of money Rachel and Simon have. Give your answer in its simplest form.
PLEASE HELP GUYS

Answers

9:20 is the answer you welcome

4.
15
33
What is the value of x round to the nearest tenth

Answers

Answer:

31.9

Step-by-step explanation:

cos(15°)× 33 = 31.87~ 31.9

calculate the mean of this data set

Answers

the mean of the data set is 5

Solve

No links!!!

I will give brainlest
& send links get reported

Answers

Answer:

12 no .

x+2(4/5)=3(1/6)

x+5*2+4/5=6*3+1/6

x+14/5=19/6

5*x+14/5=19/6(do cross multiplication)

6(x+14)=19*5

6x+84=95

6x=95-84

x=11/6

Step-by-step explanation:

13 no

-0.4a+1.2=3.6

-0.4a=3.6-1.2

a=2.4/-0.4

a=-6

∠A and ∠ B ∠B are complementary angles. If m ∠ A = ( 3 x + 25 ) ∘ ∠A=(3x+25) ∘ and m ∠ B = ( 5 x − 7 ) ∘ ∠B=(5x−7) ∘ , then find the measure of ∠ A ∠A.

Answers

Answer:

52º

Step-by-step explanation:

Complementary angles are a set of angles that add up to 90º. Knowing this, we can find the value of x by setting the sum of these two angles equal to 90. For example:

3x + 25 + 5x - 7 = 90

8x + 18 = 90

8x = 72

x = 9

Now that we know our x value, we can find the measure of angle A. Simply plug in the value of x to the measurement of angle A, which is 3x + 25.

3(9) + 25 = 52º

HELP ON PAGE 25 POINTS

Answers

Answer:

Part A: ≈112.06

Part B: B

Step-by-step explanation:

Find the surface area and volume for the separate shapes, then add them up together

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

Have a good day :)

in a bag of keys there are 15 silver keys six black keys 11 copper keys and two painted keys of various colors. one key is drawn what is the probability that the key is silver or copper

Answers

Answer:

The best thing to do here is to put each of these into fractions, with the total (31) as the denominator.

14/31= silver

6/31= black

8/31= copper

3/31= various colours.

As you're looking for the keys that are silver or copper, you've got to add the two denominators together, which gives you 14+8= 22.

This cannot be simplified further, therefore, the probability of choosing either a silver or copper key is 22/31.

Hope this answer helps you :)

Have a great day

Mark brainliest

hmm need help please

Answers

Answer:

Hello! answer: b = 5

Step-by-step explanation:

13 × 13 = 169 12 × 12 = 144 169 - 144 = 25 5 × 5 = 25 therefore b = 5 hope that helps!

12x12=144

13x13=169

169-144=25

5^2= 25

B=5 feet

by how much is 113052 greater than 90486 class 4th math exercise 5c answer​

Answers

Answer:

22,566

Step-by-step explanation:

the answer can be determined by subtracting 90486 from 113052

113052 - 90486 = 22,566

What strategies do you use when measuring the volume of a rectangular prism? Share your thinking using 2-3 sentences.

Answers

you wanna know my strategy? I grab a hammer, smash the rectangular prism open, and drink its insides and see how much my stomach fills. EZ.

PLEASE HELP ME it's almost due
find the length of the diagonals of rectangle QRST

Answers

Answer:

11. 26

12. 111

Step-by-step explanation:

_______________

Answer:

11.since diagonal are equal of rectangle

QS=RT

4x+6=6x-4

6+4=6x-4x

2x=10

x=10/2

x=5

now

diagonal :4x+6=4*5+6=26

12.

again

QS=RT

9x+12=11x-10

12+10=11x-9x

2x=22

x=11

now

diagonal=9*11+12=99+12=111

Which answer choice represents the difference of 20 and 3 times a number?
A. 3j + 20
B. 20(3j)
C. 20 – 3j
D. (20 · 3)j

Answers

Answer:

C

Step-by-step explanation:

The word “difference” tells us that this is a subtraction problem

the words “three times a number” tells us that the variable will be multiplied by three

therefore it is C, 20-3j

Can someone please help me out with this? *with full explanation
no bots please, thank you!!

Answers

Answer:

Well if perminder = 52ft that means x=5b8

Step-by-step explanation:

Please help me solve this

Answers

Answer:   -3/8

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

Explanation:

Multiply the numbers up top to get 1 times -3 = -3

Do the same for the numbers underneath: 2 times 4 = 8

The final answer is the fraction -3/8

The fraction cannot be reduced further. Why not? Because 3 and 8 don't have any factors in common other than 1.

If you need to convert to decimal form, use long division or a calculator to find that -3/8 = -0.375

Solution :

[tex] \rightarrow \frac{1}{2} \times \frac{ - 3}{4} [/tex]

[tex] \rightarrow \: \frac{1 \times - 3}{2 \times 4} [/tex]

[tex] \rightarrow\frac{ - 3}{8} [/tex]

hope it helps you !!

( ╹▽╹ )

I need help with this

Answers

Answer:

its a personality test im not alowwed to help

Step-by-step explanation:

Find the mean of this data set: 11, 13, 13, 11, 13

Answers

Answer:

I'm saososowowo3iwiqiwuwuwuwbabahaqbqnwnwnwnwnwnwnwnwnwnwnwnwnwnwnwnwnen

Answer:

I'mnot really sure if it might be correct but I believe it's 12.2 :))

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