PLEASE HURRY write the equation of the inverse function y=1/2cos^-1(pix)-3

Answers

Answer 1

Answer:

[tex]f^{-1}(x) = \frac{cos(2x+6)}{\pi }[/tex]

Step-by-step explanation:

[tex]y = \frac{1}{2} cos^{-1} (\pi x)-3[/tex]

Firstly, we've to interchange the variables.

[tex]x = \frac{1}{2} cos^{-1}(\pi y)-3[/tex]

Solving for y

[tex]x = \frac{cos^{-1} \pi y}{2} -3[/tex]

Adding 3 to both sides

[tex]x+3 = \frac{cos^{-1}(\pi y)}{2}[/tex]

Multiplying 2 to both sides

[tex]2(x+3) = cos^{-1} (\pi y)\\2x+6 = cos^{-1} (\pi y)[/tex]

Taking cosine on both sides

[tex]\pi y = cos (2x+6)[/tex]

Dividing both sides by y

[tex]y = \frac{cos(2x+6)}{\pi }[/tex]

Replace y by [tex]f^{-1}(x)[/tex]

=> [tex]f^{-1}(x) = \frac{cos(2x+6)}{\pi }[/tex]

Answer 2

Answer:

[tex]\large \boxed{f^{-1}(x)=\frac{cos(2x+6)}{\pi} }[/tex]

Step-by-step explanation:

[tex]\displaystyle y=\frac{cos^{-1} (\pi x)}{2} -3[/tex]

Swicth variables.

[tex]\displaystyle x=\frac{cos^{-1} (\pi y)}{2} -3[/tex]

Solve for y.

Add 3 to both sides.

[tex]\displaystyle x+3=\frac{cos^{-1} (\pi y)}{2}[/tex]

Multiply both sides by 2.

[tex]\displaystyle 2(x+3)=cos^{-1} (\pi y)[/tex]

[tex]\displaystyle 2x+6=cos^{-1} (\pi y)[/tex]

Take the cos of both sides.

[tex]\displaystyle cos(2x+6)=\pi y[/tex]

Divide both sides by [tex]\pi[/tex].

[tex]\displaystyle \frac{cos(2x+6)}{\pi} =y[/tex]


Related Questions

I NEED THIS ASAP, PLEASE HELP ME!!!! WILL MARK BRAINIEST IF CORRECT!!!
Write a real-world situation that includes a data set with 12 values.
Is your data set symmetric, left-skewed, or right-skewed? Explain.

Answers

Answer:

sure

Step-by-step explanation:    

I am bob and I work at a restaurant. I notice at 4 and 6 am 2 people come into the restaurant and at 7 and 8 pm 2 people come, but at 9 and 10 pm 8 people come in. So I graph the data and i find out that the graph is skewed to the right as most of the data points are more to the right/positive part of the graph

Which sign makes this number sentence true? |-101| __ -85 A. > B. < C. = D. x

Answers

Answer:

|-101|  > -85

Step-by-step explanation:

|-101| __ -85

The absolute value is taking the positive value

101 __ -85

101 is greater than -85

|-101|  > -85

Answer:

>

Step-by-step explanation:

What is the simplified expression for 3 y squared minus 6 y z minus 7 + 4 y squared minus 4 y z + 2 minus y squared z? y squared minus y squared z minus 10 y z minus 5 y squared minus y squared z minus 5 y z minus 5 7 y squared minus y squared z minus 10 y z minus 5 7 y squared minus y squared z minus 2 y z minus 5

Answers

Answer:

Step-by-step explanation:

Are you asking to simplify: [tex]3y^2 - 6zy - (7+4y)^2- (4yz+2) -y^2 * z[/tex] ?

and [tex]y^2 - y^2 z - 10yz - 5y^2-y^2z - 5yz - 57y^2-y^2z-10yz-57y^2-y^z-2yz-5[/tex]?

Answer:

c

Step-by-step explanation:

Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, -6), B(-3,-6), C(-3, -4), and D(-8, -4). Given these coordinates, what is the length of side AB of this rectangle?

Answers

Answer:

Step-by-step explanation:

Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

A(-8,-6)   ; B(-3,-6)

[tex]AB= \sqrt{(-3-[-8])^{2}+(-6-[-6])^{2}}\\\\=\sqrt{(-3+8)^{2}+(-6+6)^{2}}\\\\=\sqrt{(5)^{2}+ 0}\\\\= 5 units[/tex]

Hi, guys whoever can help me with this question and give me the right answer, I will award brainliest. Please give answer fast. Find the value of X

Answers

Answer:

X= 65

Step-by-step explanation:

180°-50°=130 (Angles on a straight line)

2x=130 ( Corrresponding Angle)

X= 130÷ 2

= 65

Hope this helps.

Answer:

x = 65

Step-by-step explanation:

In the bottom corner to find 2x you have to make an equation. So 180 - 50 = 130. 130 has the equal angle as 2x.

180 - 50 = 130

2x = 130

Simplify by dividing

2x = 130

/2       /2

x = 65

Find the value of the expression 3m2 + 2p2 − 15 when m = 3 and p = 10.

Answers

Answer:

212

Step-by-step explanation:

3m² + 2p² - 15

Plug in the values.

3(3)² + 2(10)² - 15

Evaluate.

3(9) + 2(100) - 15

27 + 200 - 15

200 + 12

= 212

Answer: 212

Step-by-step explanation:

substitute the given values into the expression

3 ( 3 ) ^ 2 + 2 (10)^ 2 − 15 =

(3 ×9 ) + (2 × 100 ) - 15

= 27 + 200 - 15 =212

Hope this helped

Help me ASAP for this question? Estimate 48% of $33.95. $18 $20 $16
$17

Answers

Answer:

$16

Step-by-step explanation:

0.48 x 33.95 = 16.296

Answer:

Hey there!

48% of 33.95, is about half of 33.95. Thus, the answer is roughly equal to 16.

Hope this helps :)

Please help and I will mark brainliest :D

Answers

For this case, the first thing we should do is define the variable.

Step-by-step explanation:

b: number of bird baths

She sells them for 55% more then she paid.

Therefore, the sale price is given by:

12b+0.55(12b)

Rewriting we have:

1.55(12b)

Answer:

The selling price for b is 1.55(12b)

A pizza shop bought a bushel of fresh vegetables. 4/15 of the bushel was used on Friday, 3/5 on Saturday and 2/15 on Sunday. How much of the bushel is left for Monday?

Answers

Answer:

None. 0.

Step-by-step explanation:

To do this problem, we have to use common denominators. So we can do 3/5*3/3=9/15. Now we just add. 4/15 + 9/15 + 2/15 = 15/15 or 1. So there were none bushels left for Monday.

Which algebraic expression is a polynomial with a degree of 2? 4x3 − 2x 10x2 − StartRoot x EndRoot 8x3+ StartFraction 5 Over x EndFraction + 3 6x2 − 6x + 5

Answers

Answer:

[tex]6x^2 - 6x + 5[/tex]

Step-by-step explanation:

Given

List of Options

Required

Which of the options has a degree of 2

The general format of a polynomial is

[tex]ax^n + bx^{n-1} + ..... + cx^{n-n}[/tex]

Where n represents the degree

In this case;

n = 2

Substitute 2 for n in expression above;

[tex]ax^n + bx^{n-1} + ..... + cx^{n-n}[/tex]

[tex]ax^2 + bx^{2-1} + ..... + cx^{2-2}[/tex]

[tex]ax^2 + bx^{1} + ..... + cx^{0}[/tex]

[tex]ax^2 + bx + c *1[/tex]

[tex]ax^2 + bx + c[/tex]

Comparing this format to the list of given options; the option with the same format is: [tex]6x^2 - 6x + 5[/tex]

Where [tex]a = 6[/tex]; [tex]b = -6[/tex] and [tex]c = 5[/tex]

Hence, the polynomial with a degree of 2 is [tex]6x^2 - 6x + 5[/tex]

Answer:

6x^2-6x+5

Step-by-step explanation:

The formula for any arithmetic sequence is an = a1 + d(n - 1), where an represents the value of the nth term, a1 represents the value of the first term, d represents the common difference, and n represents the term number. What is the formula for the sequence -15, -11, -7, ...? an = -15 + (-4)(n - 1) an = -15 + (n - 1) an = 4 + (-15)(n - 1) an = -15 + 4(n - 1)

Answers

Answer:

4n

Step-by-step explanation:

Answer:

The 4th choice

Step-by-step explanation:

    To figure this out you would have to just lug in all of the numbers into the equation to find the correct answer.

    So first we would plug in the first number for a1 which will be -15. Then we would put in d or the common difference (the number of numbers in between the 2 numbers). So d in this case would be positive 4 since every single time the number is being added to 4.

    Now we can solve, so we would just find all of the choices that do not have  +4 because that will be wrong. Automatically you can see that choices 1 and 2 are wrong and 3 also looks wrong and the only one that matched our formula is 4 and 4 is the correct answer.

ASAP!! can someone help solve these and include work

Answers

Answer:

Below

Step-by-step explanation:

The triangle ABC is a right triangle so we will use the Pythagorian theorem

c^2 =5^2 + 8^2

c^2 = 25 + 64

c^2 = 89

c = 9.43

We khow that the sum of a triangle's angles is 180°

So B+90+58= 180

B+ 148 = 180

B = 180-148

B = 32°

■■■■■■■■■■■■■■■■■■■■■■■■■■

Tan A = opposite/ adjacent

Tan A = 5/12

I agree with what they said

Select the arithmatic sequence from the following:

Select one:
a.-2, 3, 5, 10, 18
b.- 2.0, 8, 13, 17
C. - 2, 3, 8, 15, 20
d. - 2, 3, 8, 13, 18

Answers

Answer:

d) -2, 3, 8, 13, 18

Step-by-step explanation:

d) is the only one that has the same change each time (+5)

Answer:

[tex]\huge\boxed{d.\ where\ a_1=-2;\ d=5}[/tex]

Step-by-step explanation:

[tex]\text{If}\ a_1,\ a_2,\ a_3,\ ...,\ a_n\ \text{is an arithmetic sequesnce, then}\\\\a_2-a_1=a_3-a_2=a_4-a_1=...=a_{n}-a_{n-1}=d=constant\\\\d-\text{common difference}\\\\\text{We have:}\\\\a.\ -2;\ 3;\ 5;\ 10;\ 18\\18-10\neq10-5\\\\b.\ -2,\ 0;\ 8;\ 13;\ 17\\17-13\neq13-8\\\\c.\ -2;\ 3;\ 8;\ 15;\ 20\\20-15\neq15-8\\\\d.\ -2;\ 3;\ 8;\ 13;\ 18\\18-13=13-8=8-3=3-(-2)=5[/tex]

please help me immediately ​

Answers

Answer:

3.4

Step-by-step explanation:

70cm +1.5m+1.20m

Since 70 is in cenimeters you have to convert it to meters

70cm=0.7m

So then you add them all up

0.7+1.5= 2.2

2.2+1.2= 3.4

So the answer is 3.4

Hope this helped!

Write the function f(x) = x^2 + 8x + 12 in vertex form. Enter all work. Please help me.

Answers

Hello!

Answer:

f(x) = (x + 4)² - 4

Step-by-step explanation:

Write the equation f(x) = x² + 8x + 12 in vertex form by completing the square:

f(x) = (x² + 8x + (8/2)²) + 12 - (8/2)²

Simplify:

f(x) = (x² + 8x + 16) + 12 - 16

Subtract to find the 'k' value:

f(x) = (x + 4)² - 4. This is the equation in vertex form.

6x−6=6x+15 Please solve this equation, i'll put the brainliest if its the right answer

Answers

Answer:

Step-by-step explanation:

6x-6=6x+15

or, -6+6x=15+6x

adding -6x in both sides

or,  -6 + 6x + -6x = 15 + 6x + -6x

Combine like terms: 6x + -6x = 0

or,   -6 + 0 = 15 + 6x + -6x

or,   -6 = 15 + 6x + -6x

Combine like terms: 6x + -6x = 0

or,   -6 = 15 + 0

or,  -6 = 15

Solving

-6 = 15

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer:

x=7/4

Step-by-step explanation:

hope am correct

this is solved by collecting like terms

The area of rhombus ABCD is 120 square units. AE = 12 and BD = x – 2. What is the value of x and the length of segment BD?

Answers

Answer:

its a

Step-by-step explanation:

Answer:

X=12 BD=10

Step-by-step explanation:

See Above

Question 4(Multiple Choice Worth 5 points)
(05.05 LC)
The base length of a triangle is 12 feet and the height is 6 feet. What is the area of the triangle?
10 square feet
12 square feet
18 square feet
36 square feet​

Answers

Answer:

A = 36 ft^2

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh where b is the base and h is the height

A = 1/2 ( 12) * 6

A = 36 ft^2

Answer:

36 square ft

Step-by-step explanation:

What is the x xx-intercept of the line?

Answers

Answer:

(3,0)

Step-by-step explanation:

The graph is a line so it will have an equation with this form:

y = mx+b

m is the slope and b is the y-intercept.

Let's calculate m:

● m = (-32-(-64))/(-9-(-21)) = 8/3

Now replace m with its value and x,y with coordinates of a point.

● -32 = (8/3)*(-9) +b

● -32 = -24 +b

● -32+24 = b

● -8 =b

Solve y = 0

●(8/3)*x+b = 0

● (8/3) *x = 8

● x = 3

The coordinates of the x-intercept are (3,0)

Find the value of x needed to make the equation below true.

Answers

Answer:

x= -3

Step-by-step explanation:

distribute and get -6x+20+4x=26

then simplify and get -2x=6

simplify again and get x=-3

Answer:

x= -3

Step-by-step explanation:

-4(1.5x-5)+4x=26

Simplify the problem:

-2x+20=26

Subtract 20 from both sides:

(-2x+20)-20=(26)-20

Simplify:

-2x=6

Divide both sides by -2

(-2x)/-2=(6)/-2

Simplify:

x=-3

I hope that was helpful! (Brainliest???) :P

Why is [tex]a^{2}*a^{-6}* a^{6}=a^{5}[/tex] correct?

Answers

Answer:

incorrect

Step-by-step explanation:

We are multiplying exponents

Since the bases are the same, add the exponents

a^2 * a^-6 * a^6

a^ ( 2+-6 +6)

a^ (2)

This does not equal a^5

Answer:

no

Step-by-step explanation:

The table shows equivalent ratios for converting from the United States dollar (USD) to the Canadian dollar (CAD). What is the Canadian dollar equivalent of 25 USD?

Conversion Chart
USD CAD
5 4.95
7 6.93
8 7.92
11 10.89

Answers

Answer:

C

Step-by-step explanation:

25*0.99 = 24.75

Answer:

C

Step-by-step explanation:

Im taking the test

The taxi fare in Gotham City is $2.40 for the first ½ mile, and each additional mile costs $0.20. You plan to give the driver a $2.00 tip. How many miles can you ride for $10.00?

Answers

Answer:

He can ride for 28 miles

Step-by-step explanation:

Total cost of the ride = $ 10

Tips = $ 2

Cost of ride excluding tips = 10 - 2 = $ 8

Taxi fare for first 500 miles = $ 2.40

Taxi fare excluding first 500 miles =  8 - 2.40 = $ 5.60

distance traveled by him excluding first 500 miles = 5.60 ÷ cost of additional mile

 = 5.60 ÷ 0.20

=28 miles

FIRST GETS BRAINLLEST What is the perimeter of the track, in meters? Use π = 3.14 and round to the nearest hundredth of a meter.

Answers

Answer:

250.72

Step-by-step explanation:

the first step to do is you imagine the semi-circle is a whole circle. Now since its a circle you can calculate the circumference by using the equation 3.14d. The diameter of the circle is 150.72 Now we can easily tell that their are two sides having a length of 50 meters. 50 +50 = 100. Now if we cut the circle and put the semi-circle back to its place, then it will have the same shape of the track. And finally when you add 150.72 + 100= you get 250.72.

Answer:

175.4

Step-by-step explanation:

50+50=100

Find circle perimeter with 12, because you have to use the radius not the diameter. Perimeter of circle= 75.4

100+75.4= 175.4

Golden Corral charges $11 for a buffet plus $1 for each drink. Western Sizzlin charges $9 for a buffet plus $2 for each drink. Which restaurant has the best deal? (I made up these prices!!) 1. Write 2 equations to represent the 2 restaurants. Predict if these equations will be linear of nonlinear (how do you know?). If they are linear will the lines point upward or downward (how do you know?).

Answers

Answer:

see explanation

Step-by-step explanation:

GC = 11B + 1D

WS = 9B + 2D

Linear equations will point downward

Western Sizzlin is the best deal per person because in total it would be $11 and Golden Corral would be $12.

Western Sizzling would be cheaper because with the total meal it would cost $11 while Golden Corral would cost $12 for the total meal.

Let P(A)=35 and P(B|A)=89. What is the probability of events A and B occurring?

Answers

I'm assuming you meant to say P(A) = 3/5 and P(B|A) = 8/9.

If so, then we multiply the probabilities to get P(A and B)

P(A and B) = P(A)*P(B|A)

P(A and B) = (3/5)*(8/9)

P(A and B) = (3*8)/(5*9)

P(A and B) = 8/(5*3)

P(A and B) = 8/15

Answer: 8/15

Which represents the polynomial written in standard form?

Answers

Answer:

Step-by-step explanation:

b

Answer:

I think it's 4x4 - 7xy3- 3x3v/2 +8x2y2

Step-by-step explanation:

The ten's digit in a two-digit number is 1 greater than the one's digit. If we interchange the digits in the number, we obtain a new number that, when added to the original number, results in the sum 187. Find this number.

Answers

Answer:

98

Step-by-step explanation:

Let's say the tens place is x and the ones place is y.

The tens place is one more than the one's place:

x = y + 1

Reversing the digits, plus the original number, is 187:

(10x + y) + (10y + x) = 187

11x + 11y = 187

x + y = 17

Substituting:

y + 1 + y = 17

2y = 16

y = 8

x = 9

The number is 98.

The answer is 98........

Find the distance between (16,18) and (15,43) using the distance formula. PLEASE HELP!!

Answers

Answer:

I am pretty sure it is the square root of 626

Step-by-step explanation:

Help needed urgently explain how to do for each and everyone, please

Answers

Answer:

1) a

0.1 = 1/10

b).

0.64 = 64/ 100 = 16/25

2).a

0.7841 = 7841 / 10,000

b).

0.67 = 67/100

3). a

0.53 = 53/100

b).

0.26 = 26/100 = 13/50

4). a

0.6 = 6/10 = 3/5

b.

0.42 = 42/100 = 21/50

Hope this helps you

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