Write the expression in terms of cosine. Please help.

Write The Expression In Terms Of Cosine. Please Help.

Answers

Answer 1

Answer:

sin(81)

Step-by-step explanation:

Since the sine of something is the ratio of the opposite side to the hypotenuse, to get the same ratio in cosine, you take the complement of the angle. So the answer is sin(90 - 9) or sin(81).

Answer 2

The expression in terms of cosine cos 81°. The expression is obtained by the trigonometric rules.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.

The given expression is;

sin9°

The expression in terms of cosine.

sin 9°= sin(90-81°)

sin 9°= cos 81°

Hence,the expression in terms of cosine cos 81°.

To learn more about the trigonometry, refer to the link;

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Related Questions

NEED HELP FAST!!!!!!!!

Answers

i need a life fast plz

Answer:

[tex]m=0.002kg[/tex]

Step-by-step explanation:

The given formula is:

[tex]E=mc^2[/tex]

Divide both sides by [tex]c^2[/tex].

[tex]\implies \frac{E}{c^2}=\frac{mc^2}{c^2}[/tex]

Cancel out the common factors to get;

[tex]\implies \frac{E}{c^2}=m[/tex]

[tex]m=\frac{E}{c^2}[/tex]

When [tex]E=1.8\times10^{14}J[/tex] and [tex]c=300,000,000ms^{-1}[/tex], then

[tex]m=\frac{1.8\times10^{14}}{300,000,000^2}[/tex]

This simplifies to

[tex]m=0.002kg[/tex]

i need to find the sum of this equation

Answers

Answer:

[tex]\large\boxed{\dfrac{3s^2+19s-4}{(s-1)^2(s+5)}=\dfrac{3s^2+19s-4}{s^3+3s^2-9s+5}}[/tex]

Step-by-step explanation:

[tex]s^2-2s+1=s^2-s-s+1=s(s-1)-1(s-1)=(s-1)(s-1)=(s-1)^2\\\\s^2+4s-5=s^2+5s-s-5=s(s+5)-1(s+5)=(s+5)(s-1)\\\\\text{Therefore}\ LCD\ \text{is}\ (s-1)^2(s+5).[/tex]

[tex]\dfrac{3s}{s^2-2s+1}+\dfrac{4}{s^2+4s-5}=\dfrac{3s(s+5)}{(s-1)^2(s+5)}+\dfrac{4(s-1)}{(s-1)^2(s+5)}\\\\\text{use the distributive property}\\\\=\dfrac{(3s)(s)+(3s)(5)+(4)(s)+(4)(-1)}{(s-1)^2+(s+5)}=\dfrac{3s^2+15s+4s-4}{(s-1)^2(s+5)}\\\\=\dfrac{3s^2+19s-4}{(s-1)^2(s+5)}[/tex]

Two different functions are represented.
Function A:
X- 0,1,2,3,4
F(X)- 5,10,20,40,80

Function B- y=4/x

Which statement best compares the two functions?

Neither function A nor function B has an x-intercept.
Neither function A nor function B has a y-intercept.
The domain and range of both functions contain only positive numbers.
The domain and range of both functions contain only positive numbers and zero.

Answers

Answer:

Neither function A nor function B has an x-intercept.

Step-by-step explanation:

Function A has a y-intercept at (0, 5).

Function B is defined for negative numbers as well as positive numbers, but not for x=0.

These observations eliminate all answer choices but the first one.

The statement that best compares the two functions is; Neither function A nor function B has an x-intercept.

How to Interpret Functions?

A y-intercept is the point where x = 0. Now, for function A we can see that when x = 0, y = 5. Thus, it has a y-intercept.

However, we are not given the point where y = 0 which is x-intercept. Thus, function A does not have an x-intercept.

Formula for Function B is y = 4/x.

This function does not have an x-intercept because at x = 0, the function is undefined.

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(please hurry)Consider this composite figure.

Composite Figure

Apply the formula of each shape to determine the volumes.



What is the exact volume of the composite figure?
V =
π cm³

Answers

Answer:

39pi cm 3

Step-by-step explanation:

i just did the assingment

The composite figure is the combination of the two cones. The volume of the composite figure will be 39π cm³.

What is Geometry?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

The volume of the composite figure.

The composite figure is the combination of the two cones.

[tex]V = \dfrac{1}{3} \times \pi \times 3^2 \times 5 + \dfrac{1}{3} \times \pi \times 3^2 \times 8\\[/tex]

On simplifying, we have

V = 15π + 24π

V = 39π cm³

More about the geometry link is given below.

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50 points An unknown number x is at most 20. Which graph best represents all the values of x? (1 point) Number line graph with closed circle on 20 and shading to the right. Number line graph with open circle on 20 and shading to the right Number line graph with closed circle on 20 and shading to the left. Number line graph with open circle on 20 and shading to the left

Answers

At most means it can either equal 20 or be less than 20.

On a number line, there would be a closed circle on the number 20 and the area to the left of 20 would be shaded.

Number line graph with closed circle on 20 and shading to the left.

a food truck sells tacos, burrito, and drinks.

Let event A = A customer buys a taco

Let event B = A customer buys a drink

What does P(A or B) = 0.60 mean in terms of this problem?

A) The probability that a customer buys both a taco and a drink is 60%.

B) Buying a taco and buying s drink are mutually exclusive events.

C) The probability that a customer buys either a taco or a drink is 60%.

D) The probability that a customer buys neither a taco nor a drink is 60%.

Answers

Answer:

Option C is correct.

Step-by-step explanation:

P(A or B) represents  that event A has occurred or event B has occurred or both events A and B are happening.

We are given P(A or B) = 0.60 or 0.60/100 = 60%

So, Option C The probability that a customer buys either a taco or a drink is 60% is correct.

Answer: Option C

Step-by-step explanation:

For two events A and B, P(A or B) represents the probability that event A occurs, or event B occurs.

In this case, event A represents a customer buys a taco and event B represents a customer buys a drink. We know that

[tex]P (A\ or\ B) = 0.60[/tex]

So this means that the probability that a customer buys either a taco or a drink is 60%

The answer is the option C

I need help please!!

Answers

Answer:

about 32.9

Step-by-step explanation:

By looking at the triangle, you can see that there is both an angle and a side provided. This allows you to use trigonometry (sin, cos, tan). You have to use tan to find the answer since it is used when you have either the opposite side or adjacent side and are solving for one of them. You take the tangent of the angle and set it equal to the opposite over the adjacent (see image attached).

I hope this helps.

Also sorry that the image is the wrong way, but it wouldn't let me attach it the right way.

QUESTION 1

Given a right triangle, the unknown side is opposite to the 35° angle.

The side adjacent to this angle is 47 units.

We use the tangent ratio to get:

[tex] \tan(35 \degree) = \frac{opposite}{adjacent} [/tex]

[tex] \tan(35 \degree) = \frac{x}{47} [/tex]

[tex] x = 47\tan(35 \degree)[/tex]

[tex]x = 32.9units[/tex]

to the nearest tenth.

QUESTION 2

The given angle is 47°

The opposite side is x units.

The adjacent side is 40 units.

We again use the tangent ratio to obtain:

[tex] \tan(47 \degree) = \frac{x}{40} [/tex]

[tex]x = 40\tan(47\degree) [/tex]

[tex]x = 42.9units \: to \: the \: nearest \: tenth[/tex]

evaluate 9!/7! PLEASE I NEED HELP

Answers

Answer:

72

Step-by-step explanation:

Remember that 9! = 7! (8)(9)

write Substitute

7!(8)(9) for 9!

7!(8)(9)/ 7!= (8)(9)= 72

Answer: 72

Step-by-step explanation:

By definition, it is important to know that the factorial of a non-negative integer "n" is the product of all positive integers less than or equal to "n".  This is expressed with an exclamation symbol (!):

[tex]n![/tex]

Then, the rule for this is the following:

[tex]n! = n *(n-1)![/tex]

Therefore, knowing this, you can evalute [tex]\frac{9!}{7!}[/tex] as following:

 [tex]\frac{9*8*7*6*5*4*3*2*1}{7*6*5*4*3*2*1}=\frac{362,880}{5,040}=72[/tex]

What is the approximate area of the triangle below?
a)72.8
b)111.9
c)142.0
d)164.7
all in sq. cm.

Answers

I believe it’s B of joy them A

Answer:

A

Step-by-step explanation:

Got a 100

What’s the area of a 72 ft diameter circle?

Answers

Answer:

4069.44

Step-by-step explanation:

a=pie R squared

How do I set up the equation for this?
If your average speed is 55 mph, how long will it take you to drive 248 miles?

Answers

Answer:

Speed = Distance ÷ Time

time = distance ÷ speed

Step-by-step explanation:

248 ÷ 55 * 60 = 270.54 minutes

what is the biggest star in the solar system

Answers

Answer:

Well we only have one star in our solar system so the Sun?

The sun is the biggest star. The sun is at the center of our solar system and is the nearest star to Earth. The sun is a huge ball of very hot, burning gas. The sun sends out heat and light into space.

Geometry, Triangle in a circle. Find X show work and explain please

Answers

Answer: [tex]x=7[/tex]

Step-by-step explanation:

By the Intersecting Secants Theorem, we know that:

[tex](5)(x+5)=(6)(6+4)[/tex]

Having this, we can find the value of "x" by solving for "x":

Applying Distributive property:

[tex](5)(x+5)=(6)(24)\\5x+25=60[/tex]

Subtract 25 from both sides of the equation:

[tex]5x+25-25=60-25\\5x=35[/tex]

And finally dviding both sides of the equation by 5, we get:

[tex]\frac{5x}{5}=\frac{35}{5}\\x=7[/tex]

Answer:

35/5 it would be 35 over 5

Step-by-step explanation:

which of the following properties can be used to show that the expression?​

Answers

Answer:

1 3 5set/dhzhhhhhhhhhhhhhhhhhhh

The expression [tex]\(4^5/3\)[/tex] is indeed equivalent to[tex]\(\sqrt[3]{4^5}\)[/tex].

The correct option is (a).

To demonstrate that the expression[tex]\(4^5/3\) is equivalent to \(\sqrt[3]{4^5}\)[/tex], we can apply the following properties:

1. Radical to Exponent Property:

  - The expression [tex]\(\sqrt[3]{4^5}\) can be rewritten as \(4^{5/3}\)[/tex].

  - This property allows us to convert a radical expression to an exponent expression by raising the base to the reciprocal of the index of the radical.

2. Exponent to Radical Change Property:

  - The fraction exponent [tex]\(5/3\)[/tex] can be expressed as a radical: [tex]\(\sqrt[3]{4^5}\)[/tex].

down step-by-step:

1. Start with the given expression: [tex]\(4^5/3\)[/tex].

2. Apply the **Radical to Exponent Property: [tex]\[4^5/3 = 4^{5/3}\][/tex]

3. Now, express the fraction exponent as a radical:

[tex]\[4^{5/3} = \sqrt[3]{4^5}\][/tex]

Therefore, the expression [tex]\(4^5/3\)[/tex] is indeed equivalent to[tex]\(\sqrt[3]{4^5}\)[/tex].

if Angela's house is assessed valuation of $61,200 and the tax rate per 100 is $3.78 what will she pay in annual real estate tax to the nearest tenth​

Answers

Answer:

[tex]\boxed{\text{\$2313.40}}[/tex]

Step-by-step explanation:

The tax rate is $3.78/$100 assessed

[tex]\text{Tax} = \text{\$61 200 assessed} \times \dfrac{\text{\$3.78}}{\text{\$100 assessed}}[/tex]

Cancel the $100 assessed.

612 × $3.78 = $2313.40

Angela's real estate tax will be [tex]\boxed{ \textbf{\$2313.40}}[/tex]

simplify x squared - 9/ x squared - 3x

Answers

Answer:

see explanation

Step-by-step explanation:

Given

[tex]\frac{x^2-9}{x^2-3x}[/tex]

Factorise the numerator/denominator

x² - 9 = (x - 3)(x + 3) ← difference of squares

x² - 3x = x(x - 3) ← common factor of x

The fraction simplifies to

[tex]\frac{(x-3)(x+3)}{x(x-3)}[/tex] ← cancel (x - 3) on numerator/denominator

= [tex]\frac{x+3}{x}[/tex]

A pencil manufacturer uses 5,376 grams of rubber to make 960 pencils. If they use 64,512 grams of rubber an hour, how many pencils are made per hour?

A) 11,420 pencils per hour
B) 11,480 pencils per hour
C) 11,520 pencils per hour
D) 11,580 pencils per hour

Answers

This answer would be C because I had worked out answer good

For this case, we look for the number of pencils per gram of rubber.

[tex]\frac {960} {5,376} = 0.178571428571[/tex]

0.178571428571 pencils per gram of rubber are made

We are looking for the number of pencils per hour.

[tex]0.178571428571 \frac {penc} {g} * 64,512 \frac {g} {h} = 11,520 \frac {pen} {h}[/tex]

Thus, 11,520 pencils per hour are made.

Answer:

Option C

what is the complete factorization of the polynomial below

Answers

Answer:

B

Step-by-step explanation:

(x+2)(x^2+1)

=(x+2)(x+1)(x+1)

Answer:

( x + i)(x -i) ( x +2).

Step-by-step explanation:

Given  : x³ + 2x² +x +2.

To find :  complete factorization of the polynomial below.

Solution : We have given x³ + 2x² +x +2.

On taking common x² from first two terms and 1 from last two terms .

x² ( x +2) +1 (x +2).

On grouping

(x²  +1) ( x +2).

Now factor of (x²  +1) become ( x + i)(x -i) in complex form .

Factors are  ( x + i)(x -i) ( x +2).

Therefore,  ( x + i)(x -i) ( x +2).

Solve the equation.
5х + 8 – 3x = -10

Answers

Answer: x=-9
get all of the numbers on one side and x on the other
5x+8-3x=-10
-8 -8
5x-3x=-10-8
simplify
2x=-18
divide by two on each side
x=-9

Answer:

x=-9

Step-by-step explanation:

5x+8-3x=-10

2x+8=-10

2x=-18

Divide both sides by 2 to get

Answer is -9

PLEASE HELP WILL MARK

Answers

Answer:

( 8.5 , 6.5 )

Step-by-step explanation:

Midpoint formula = ( x₁ + x₂ / 2 ) , ( y₁ + y₂ / 2 )

x₁ = 4

x₂ = 13

y₁ = 10

y₂ = 3

Midpoint = ( 4 + 13 / 2 ) , ( 10 + 3 / 2 )

Midpoint = ( 17 / 2 ) , ( 13 / 2 )

Midpoint = 8.5 , 6.5

brainly what is the leanth of the line segment with endpoints (-6,-8) and (7,-8)

Answers

Answer:

The length of the line segment is 13 units

Step-by-step explanation:

The line segment joining the two points is horizontal since the y co-ordinate is the same.

For a horizontal line, the length of the line segment is simply the difference between the x co-ordinate values.

In this case we have;

7 - (-6) = 7 + 6 = 13

Therefore, the length of the line segment is 13 units

Answer:

13 units

Step-by-step explanation:

We want to find the length  of the line segment with endpoints (-6,-8) and (7,-8).

Observe that, the y-coordinates are the same.

We can quickly use the absolute value method to find the required length.

According to this method the length of the line segment with endpoints (-6,-8) and (7,-8) is the absolute value of the difference between the x-values.

[tex]|7--6|=|7+6|=|13|=13[/tex]

The length of the line segment is 13 units.

richard wants to paint the top sides of the block column. what is the surface area he needs to cover?

Answers

First of all, you have to send the measurements; otherwise, there would not be an answer

What is the smallest two-digit prime number?

Answers

Answer: 11

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

the prime numbers (1-15 is the furthes i will go for this) are 2,3,5,7,11,13

as you can see the smallest two didget prime number is 11------------

-4h - 6 + 15 = 17 ( I don’t understand the concept.)

Answers

the concept is to find the value of h

Answer:

it is an algebraic expression (answer is h = -2 )

Simplify the expression

−4h−6 + 15 = 17

(Combine Like Terms)

(−4h)+(−6+15)=17

−4h + 9 = 17

Step 2: Subtract 9 from both sides.

−4h + 9 − 9 = 17 − 9

−4h=8

Step 3: Divide both sides by -4.

[tex]\frac{-4h}{-4}[/tex] = [tex]\frac{8}{-4}[/tex]

h = -2

Step-by-step explanation:

what is the prime fractorization of 180

Answers

Answer:

2^ .3^.5  

Step-by-step explanation:

We need to obtain factors of 180 which are prime numbers

2^=4

3^=9

4.9.5 = 180

i neeed helpppp can someone help me?

Answers

Answer:

-8/5

Step-by-step explanation:

The thing that makes lines different from other kinds of curves is their constant rate of change. We call this rate of change slope, and you usually see it represented with the letter m. We measure it as the rate our y-coordinate changes for some amount our x-coordinate changes.

We're given the two points (-1, 4), and (4, -4). From that first point to the second one, our x-coordinate increases by 5, while our y-coordinate decreases by 8, so our change in y is -8 for every 5 in the positive x direction, and we'd write our slope as

m = -8/5

60 points !!
Triangle QRS is shown on the coordinate grid. Triangle QRS is dilated with the origin as the center of dilation using the rule (x, y) → ( 1/4 x, 1/4 y) to create triangle Q'R'S'. Which statement is true? A) Triangle Q'R'S' is smaller than triangle QRS, because the scale factor is less than 1. B) Triangle Q'R'S' is larger than triangle QRS, because the scale factor is less than 1. C) Triangle Q'R'S' is larger than triangle QRS, because the scale factor is greater than 1. D) Triangle Q'R'S' is smaller than triangle QRS, because the scale factor is greater than 1.
https://lh3.googleusercontent.com/qPYvRzvroDEYvaSZbKCSiNmf-uxSPXZzCkwcqzIAnhtvrmk7zmrkSt5hQ-lftybdtUCa-A=s91

Answers

Answer:

A

Step-by-step explanation:

The triangle is being scaled down by a factor of 1/4.  So Q'R'S is smaller than QRS because the scale factor is less than 1.  Answer A.

Answer:\

The answer is A :) I took the assignment


20) Which rule yields the dilation of the figure RSTU centered at the origin?

A)
(x, y) → (4x, 4y)

B)
(x, y) → (0.25x, 0.25y)

C)
(x, y) → (x + 4, y + 4)


D)
(x, y) → (x + 0.25, y + 0.25)

Answers

A) (x,y)->(4x,4y) because the x and y values are multiplied by 4 when dilated. Ex. U(-1,1) was dilated to U’(-4,4). -1 was multiplied by 4 to get -4 for the x value and 1 was multiplied by 4 to get 4 for the y value.

Answer:   A) [tex](x,y)\to(4x,4y)[/tex]

Step-by-step explanation:

The rule of dilating a shape by scale factor k centered at the origin is given by :-

[tex](x,y)\rightarrow (kx,ky)[/tex]  [We multiply k to the coordinates of pre-image ]

It means Option C) and D) is incorrect.

From the given graph , it can be observe that quadrilateral R'S'T'U' (image) is larger than the RSTU (pre-image) .

It means the scale factor should be greater than 1. [∵ Scale factor for enlargement is k>1]

Then, Option B is also incorrect.

Hence, the rule yields the dilation of the figure RSTU centered at the origin is given by option A)

i.e. [tex](x,y)\to(4x,4y)[/tex]

Cross multiplication

Answers

Answer:

7. 5/6 8. 3/12

Step-by-step explanation:

My answers to the numbers listed are the ones that are greater
7. 2/5
8. 2/3
9. 4/5
10. 3/4
11. 3/5
12. 3/4
13. 2/3
14. 3/4
15. 2/3
16. 2/6
17. 3/4
18. 6/8
19. 2/3

This isn’t cross multiplying though

a bag with 10 marbles is shown below. a marble is chosen from the bag at random. what are odds in favor of choosing a black marble​

Answers

Divide the number of black marbles by 10, the total number of marbles. If there is one black marble, the chances of choosing a black marble is 1/10.

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