Find a possible solution to the equation cos(x+2)= sin(3x)

Answers

Answer 1

Answer:

x = 22

Step-by-step explanation:

Let's say that a & b are complementary angles...

Then cos a = sin b

We can also write sin(3x) as ,

[tex] \sin(3x) = \cos(90 - 3x) [/tex]

Substituting the value of sin(3x) in the question ,

[tex] \cos(x + 2) = \cos(90 - 3x) [/tex]

Cancelling cos from both the sides gives us -

[tex]x + 2 = 90 - 3x\\ [/tex]

Solving this eqn , x = 22


Related Questions

Evaluate5− t/3 when t=12 ​

Answers

Answer:

[tex]1[/tex]

Step-by-step explanation:

[tex]5 - \frac{t}{3} = \frac{5}{1} - \frac{12}{3} = 5 - 4 = 1[/tex]

or

[tex]5 - \frac{t}{3} = \frac{5}{1} - \frac{12}{3} = \frac{15 - 12}{3} = \frac{3}{3} = 1 [/tex]

Hope this helps ;) ❤❤❤

Answer would be 1:) I hope this helps you!

cosA×cos2A+sinA×sin2A=cos (2A-A)​

Answers

Answer:

csc

A

, as desired!

Step-by-step explanation:

cos

2

A

sin

A

+

sin

2

A

cos

A

,

=

cos

2

A

cos

A

+

sin

2

A

sin

A

sin

A

cos

A

,

=

cos

(

2

A

A

)

sin

A

cos

A

,

=

cos

A

sin

A

cos

A

,

=

1

sin

A

,

=

csc

A

, as desired!

what is the answer for this question and how do i solve it?

Answers

Answer:

[tex]\frac{7}{15}[/tex]

Step-by-step explanation:

Given

[tex]\frac{16-4(5)}{2(6)+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{16-20}{12+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{-4}{20}[/tex] + [tex]\frac{2}{3}[/tex]

= - [tex]\frac{1}{5}[/tex] + [tex]\frac{2}{3}[/tex]

We require the fractions to have a common denominator of 15

Multiply the numerator/ denominator of - [tex]\frac{1}{5}[/tex] by 3 and

Multiply the numerator/ denominator of [tex]\frac{2}{3}[/tex] by 5

= - [tex]\frac{3}{15}[/tex] + [tex]\frac{10}{15}[/tex]

= [tex]\frac{7}{15}[/tex]

A two digit number becomes 5/6 of the reversed number when the digits are interchanged the difference between the digits is 1 find the number.
Friends plz helpe plz plz plz
I want answer with full explanation
I will mark him as brainliest​

Answers

Answer:

Original number = 54

Reversed number = 45

Step-by-step explanation:

Let the tens place digit be x and unit's place digit be y.

Therefore, required no. = 10x + y

Number obtained after interchanging the digits = 10y + x

According to the given condition:

[tex]10y+ x = \frac{5}{6} (10x + y) \\ 6(10y + x) = 5(10x + y) \\ 60y + 6x = 50x + 5y \\ 60y + 6x - 50x - 5y = 0 \\ 55y - 44x = 0 \\ 11(5y - 4x) = 0 \\ 5y - 4x = 0.....(1) \\ according \: to \: the \: second \: condition \\ x - y = 1 \\ x = y + 1....(2) \\ from \: equations \: (1) \: and \: (2) \\ 5y - 4(y + 1) = 0 \\ 5y - 4y - 4= 0\\ y - 4 = 0 \\ y = 4 \\ substituting \: y = 4 \: in \: equation \: (2) \\ x = 4 + 1 \\ x = 5 \\ \\ 10x + y = 10 \times 5 + 4 = 50 + 4 = 54 \\ 10y + x = 10 \times 4 + 5 = 40 + 5 = 45 \\ [/tex]

Fives times the difference of
a number and 3 is 25

Answers

Answer:

24

Step-by-step explanation:

multiples for 3=3,6,9,12,15,18,21,24

Multiples for 8=8,16,24

The first one that matches for both is 24

Answer: 8

Step-by-step explanation:

if n represents the number:

5(n - 3) = 25

(distribute)

5n - 15 = 25

(add 15 to both sides)

5n = 40

(divide both sides by 5 to isolate "n")

n = 8

Simplify 7√300
With work

Answers

Answer:

70 [tex]\sqrt{3}[/tex]

Step-by-step explanation:

300    

6            50

|    \          |      \

2     3      5      10

                         |    \

                         5     2

2×5=10

10×7=70

70[tex]\sqrt{3}[/tex]

Answer:

70√3

Step-by-step explanation:

7√300 =

7√100*3

7√10*10*3     (√100=√10²=10)

7*10√3

70√3

Explain or give your reasoning as to why x^0=1.

Answers

Answer:

Any number raised to the zeroth power is equal to 1.

Step-by-step explanation:

x^0=1 is a number raised to the zeroth power so it is automatically equal to 1.

Write an expression to represent a circle's area in terms of its diameter, d .

Answers

Answer:

(d/2)^2 pi

Step-by-step explanation:

To find the area of a circle the formula is A=pi times radius sqaured. Since we do not have the radius we need to find it. The radius will always be half the diameter hence the (d/2). This will give us the radius, next is just to complete the area formula by squaring the radius and multiplying it by pi.  i hope this helps :)

The circle's area, in function of it's diameter, is given by:

[tex]A = \frac{\pi d^2}{4}[/tex]

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

The area of a circle, in function of it's radius r, is given by:

[tex]A = \pi r^2[/tex]

The radius is half the diameter, thus: [tex]r = \frac{d}{2}[/tex]Replacing [tex]r = \frac{d}{2}[/tex] into the formula for the area, it is possible to find the area as a function of the diameter. Thus:

[tex]A = \pi r^2[/tex]

[tex]A = \pi (\frac{d}{2})^2[/tex]

[tex]A = \pi \frac{d^2}{4}[/tex]

[tex]A = \frac{\pi d^2}{4}[/tex]

Which is the area of a circle of diameter d.

A similar problem is given at https://brainly.com/question/16891462

Which of the following number(s) are rational? Select all that apply.
2.323232...
2.32222...
2.323148...
-2.3
-2.3

Answers

Answer:

2.323232…

2.32222…

-2.3

Negative 2.ModifyingAbove 3 with bar

Step-by-step explanation:

-2.3 is the rational number among the given options.

What is Number system?

A number system is defined as a system of writing to express numbers.

Rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

Any decimal number can be either a rational number or an irrational number, depending upon the number of digits and repetition of the digits.

Any decimal number whose terms are terminating or non-terminating but repeating then it is a rational number

In the given decimal numbers 2.323232..., 2.32222... 2.323148... and -2.3.

The first three decimal numbers are irrational because it is not terminating and -2.3 is rational.

Hence, -2.3 is the rational number among the given options.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

P;ease help me with this question, please get it right, i only have 1 chance for it, Volume of prism

Answers

Answer:

16.295

Step-by-step explanation:

*em janeiro foram produzidos 818,4 litros de leite * em fevereiro 771,1 litros de leite *em março 815,2 litros de leite *em abril 784,5 litros de leite *em maio 803,4 litros de leite * em junho 742,9 litros de leite Agora responda: a)Quantos litros de leite foram produzidos EM MÉDIA, por mês? b)Quantos litros de leite, em média, foram produzidos diariamente no mês de janeiro?

Answers

Answer:

ifk

Step-by-step explanation:

tdf

A work shift for an employee at a restaurant consists of 8 hours. What fraction of the​ employee's work shift is represented by 6 ​hours? ​(Simplify your​ answer.)

Answers

Answer:

6 hours represents [tex]\frac{3}{4}[/tex] of the 8-h work shift.

Step-by-step explanation:

The fraction of the employee's work shift is equal to the given time divided by the work shift. That is:

[tex]x = \frac{6\,h}{8\,h}[/tex]

[tex]x = \frac{6}{8}[/tex]

[tex]x = \frac{3}{4}[/tex]

6 hours represents [tex]\frac{3}{4}[/tex] of the 8-h work shift.

How do you solve this question: what is the difference between (2,5) and (2,0) without using a coordinate plan graph?​

Answers

Answer: (2,5) is 5 units above (2, 0)

Step-by-step explanation: The first point has a 5 in the y-axis (up and down) while the second point is on the x-axis

There are four movies showing at the movie theatre. 2/3 of the people bought comedy, 1/4 bought tickets for horror movie, and 3/10 bought tickets for the kids movie what fraction represents the number of people who bought tickets for the action movie

Answers

Answer:

The fraction of people for 4th movie is 0.1167

Step-by-step explanation:

The number of people that bought a comedy movie ticket = 2/3

The number of people that bought the horror movie ticket = 1/4

The number of people that bought kids movie ticket = 3/10

Total number people for three movies = 2/3 + ¼ + 3/10 = 0.8833

The fraction of people for 4th movie = 1 – 0.8833 = 0.1167

Point Tis on line segment SU. Given ST = 9 and TU
SU.
= 7, determine the length

Answers

Answer:

Line SU is 16

Step-by-step explanation:

ST + TU = SU

7 + 9 = 16

You add 9 and 7 to get 16.

Jan is x years old, her sister is twice as old as her, and her brother is three times older than her. Their ages add up to 29. How old is each sister?

Answers

Jan's age = [tex] 4\frac{5}{6}[/tex] years

Sister's age =[tex] 9\frac{2}{3} \: years[/tex]

Step-by-step explanation:

Jan's age = x years

Sister's age = 2x years

Brother's age = 3x years

According to the given condition:

x + 2x + 3x = 29

6x = 29

x = 29/6

x = [tex] 4\frac{5}{6}[/tex] years

2x = [tex] 2\times \frac{29}{6}= \frac{29}{3}=9\frac{2}{3} \: years[/tex]

Therefore,

Jan's age = [tex] 4\frac{5}{6}[/tex] years

Sister's age =[tex] 9\frac{2}{3} \: years[/tex]

What’s the output of f(x)=-3/2x+2

Answers

Answer:

Step-by-step explanation:

 

6x(2)y +8xy(2) - 10x(2)y - 15xy + 9xy(2) simplify​

Answers

Answer:

-4x²y + 17xy² - 15xy

Step-by-step explanation:

Step 1: Write out expression

6x²y + 8xy² - 10x²y - 15xy + 9xy²

Step 2: Combine like terms (x²y)

-4x²y + 8xy² - 15xy + 9xy²

Step 3: Combine like terms (xy²)

-4x²y + 17xy² - 15xy

Can someone please help me​

Answers

This isn't an answer, rather a suggestion.

I would use the website desmos to help you out. But it won't help you forever like when you do quizzes or tests.

Directions:

Make the variable "y" all by itself. It need to be solo. For example for problem 34, negate 3 on each side and you will have "y=1/2(x+2)+3".

From there, plug in numbers into the x variable. (I suggest using common factors of "2" since the number your multiplying is 1/2.

Again using 34,

y=1/2(x+2)+3

y=1/2(2+2)+3

y=1/2(2+2)+3

y=1/2(4)+3

y=2+3

y=5

The coordinates are (2,5). Plot the coordinate.

Repeat the process.

Si la medida de un ángulo exterior es el cúadruple de la medida de un ángulo interior de un polígono regular, encuentra la suma de dichas medidas.

Answers

If the measure of an exterior angle is four times the measure of an interior angle of a regular polygon, find the sum of these measures.

Answer:

dos  palabras viva el tequila

Step-by-step explanation:

atu vieja se lo voy a meter xd xd xd xd xd xd xd xd xd xd xd xd

solve the following equation show your work 3{-x + (2x + 1)} = x - 1

Answers

Answer:

x = -2

Step-by-step explanation:

For this problem, we must simply solve for x.  To do this, we will need equation operations, and the use of the distributive property.

Let's work this line by line until we have the value for x:

3{-x + (2x + 1)} = x - 1

3*-x + 3*(2x + 1) = x - 1

-3x + 6x + 3 = x - 1

3x + 3 = x - 1

2x = -4

x = -2

Now we can check our answer for x by plugging back into the original equation and see if the left hand side is equal to the right hand side:

3{-x + (2x + 1)} = x - 1

3{-(-2) + (2(-2) + 1)} ?= (-2) - 1

3{2 + (-4 + 1)} ?= -3

3{2 + (-3)} ?= -3

3{-1} ?= -3

-3 == -3

Thus, we have found the solution for x to be equivalent to negative 2.

Cheers.

Answer:

x = - 2

Step-by-step explanation:

3{-x + (2x + 1)} = x - 1

First solve the terms in the bracket first

That's

3 (- x + 2x + 1 ) = x - 1

3( x + 1) = x - 1

Expand the terms in the bracket

We have

3x + 3 = x - 1

Simplify

3x - x = - 1 - 3

2x = - 4

Divide both sides by 2

We have the final answer as

x = - 2

Hope this helps you

3(y+6)+5(2–4y)
Combining like terms

Answers

Answer:

[tex]28-17y[/tex]

Step-by-step explanation:

[tex]3(y+6)+5(2-4y)[/tex]

Expanding:

[tex]3y+18+10-20y[/tex]

[tex]28-17y[/tex]

Answer:

-17y+18

Step-by-step explanation:

[tex]3(y+6)+5(2-4y)\\= (3*y + 3*6) + (5*2 - 5*4y)\\= 3y + 18 + 10 - 20y\\= -20y + 3y +18 +10\\=-17y+28[/tex]

Four more than the product of 19 and a number

Answers

4+(19x)

four plus 19 and a number

Answer:

19+4x

Step-by-step explanation:

We can write an expression:

19x+4x

"Four more": +4x

product of 19 and a number: 19x

Inverse function f(x)= -3/5x -3

Answers

Answer:

f(x)⁻¹ = -5/3x - 5

Step-by-step explanation:

y = -3/5x - 3

x = -3/5y - 3

x + 3 = -3/5y

(x + 3)(-5/3) = y

-5/3x - 5 = y

Find the sum of first 20 terms of the arithmetic series in which 3rd term is 7 and 7th term is 2 more than three times its 3rd term.

Answers

Answer:

740

Step-by-step explanation:

Let the AP be a, a+d, a+2d, a+3d, ...

The  term of AP is given by:

[tex]t n =a+(n-1)d[/tex]

We are given that the third term is 7.

[tex]t 3=7[/tex]

⇒  [tex]a+(3-1)d=7[/tex]

⇒[tex]a+2d=7 ---(1)[/tex]

Also, the seventh term is 2 more than three times the third term.

[tex]t7=3t3+2[/tex]

⇒[tex]a+ (7-1)d=3(a+(3-1)d)+2[/tex]

⇒[tex]a+6d=3(a+2d)+2[/tex]

⇒[tex]a+6d=3a+6d+2[/tex]

⇒[tex]-2a=2[/tex]

⇒[tex]a=-1[/tex]

We can put it in (1)

[tex]a+2d=7[/tex]

⇒[tex](-1)+2d=7[/tex]

⇒[tex]2d=8[/tex]

⇒d=4

Now, the Sum of n terms of an AP is given by the formula:

[tex]sn=\frac{n}{2}(2a+(n-1)d)[/tex]

So, Sum of first 20 terms would be:

[tex]s 20=\frac{20}{2}(2(-1) +(20-1) x 4)[/tex]

⇒[tex]s20=10(-2+19 x 4)[/tex]

⇒[tex]s 20=10 x(-2+76)[/tex]

⇒[tex]s 20= 10 x 74[/tex]

⇒[tex]s 20=740[/tex]

Thus, The Sum of first 20 terms of the AP is 740.

The coefficient of the term y is 0.

Answers

Answer:

no it is 1

Step by step instructions:

since there is no number for y it will be one

why isn’t -3/5 a integer? answer asap please

Answers

Answer:

integers contain 0, all negative and +ve whole number!!

Since -3/5 is not a whole number so not an integer!

Step-by-step explanation:

The graph of f(x) is the solid black graph below. Which function represents the
dotted graph?
4
6
y = f(2 + 1) + 4
y = f(x - 1) - 4
Submit Answer
y=f(x - 1) + 4
y = f(x + 1) - 4

Answers

y=f(x+1)-4

The dotted graph moved down 4 so the answer had to have -4 and the graph moved to the left 1. What is inside the () causes the graph to move either left or right. Because it moved left 1 you add 1 to x. What’s inside the parenthesis is the opposite of what happens on the graph.( when the graph moves left you add and when it goes to the right you subtract)

Using translation concepts, it is found that the dotted graph is given by:

f(x - 1) - 4

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

For function f(x), the solid line, it has a zero at x = -1, while the dashed line has a zero at x = 0, which means that it was moved 1 unit to the right, thus f(x - 1).

The dashed line is also below the function f(x), so 4 was subtracted, thus f(x - 1) - 4.

A similar problem is given at https://brainly.com/question/18405655

you have already read 117 pages of a book you are one third of the way through the book write and solve an equation to find the number of pages in the book

Answers

Answer:

1/3=117......117x3=351

Step-by-step explanation:

/ is my fraction sign btw

the answer is 351!!


Which of these tables represents a linear function?







Plz Hurry

Answers

I think it a because I know
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