PLEASE HELP QUICK !!

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x

f(x) = [tex]\frac{2}{x}[/tex] and g(x) = [tex]\frac{2}{x}[/tex]

Answer:

1. X=1 and y=3

2. x=6 and y=11

Step-by-step explanation:

1. 2x+1= y

2y=6

y=3

y=2x+1

3=2x+1

2/2=2x/2

x=1

2. y-3=x+2

y=x+5

x+5=2x-1

6=2x-x

x=6

y=6+5

y=11

Answer:

=13x(y - 2)

Step-by-step explanation:

26 = 13 * 2

Answer:

  A: the triangles are similar

  B: AB corresponds to QR

  C: ∠PAB corresponds to angle Q

Step-by-step explanation:

A line segment parallel to the base of a triangle will create a similar triangle. The AA similarity postulate can be used to conclude that.

__

The triangles PQR and PAB are similar. This derives from the fact that angle P is in both triangles, and corresponding angles PAB and PQR are congruent. The AA congruence postulate applies.

__

Based on the similarity statement, segment AB corresponds to segment QR.

__

Transversal PQ crosses parallel lines AB and QR at points A and Q, respectively. The corresponding angles are PAB and PQR.

Answer:

D. 0.80

Step-by-step explanation:

Convert the fraction to a decimal by dividing the numerator by the denominator.

Answer:

41.22

Step-by-step explanation:

12+28 = 40

0.54 + 0.68 = 1.22

40 + 1.22 = 41.22

Answer:41.22

Step-by-step explanation:

Answer:

[tex]x=\frac{3\pi n}{5}[/tex]

Step-by-step explanation:

We know that [tex]cot(\frac{5x}{3})=\frac{cos(\frac{5x}{3})}{sin(\frac{5x}{3})}[/tex], so [tex]cot(\frac{5x}{3})[/tex] is undefined where [tex]sin(\frac{5x}{3})=0[/tex]:

[tex]sin(\frac{5x}{3})=0\\\\\frac{5x}{3}=\pi n\\\\5x=3\pi n\\\\x=\frac{3\pi n}{5}[/tex]

So, the discontinuities for the function [tex]f(x)=cot(\frac{5x}{3})[/tex] are where [tex]x=\frac{3\pi n}{5}[/tex] with [tex]n[/tex] being any integer.

∠A and ∠B are complementary. The measure of ∠A is 21°.

What is the measure of ∠B?

we know that,

ATQ,

Answer:

[tex]\displaystyle 69° = m\angle{B}[/tex]

Step-by-step explanation:

Complementary Angles sum up to ninety degrees, so do the following:

[tex]\displaystyle 90° = 21° + m\angle{B} \\ \\ 69° = m\angle{B}[/tex]

I am joyous to assist you at any time.

Answer: 4 roses and 8 tulips.

Step-by-step explanation: Each rose costs $5, so she bought 4 of them, which is $20 so far.  Since she already bought 4 roses, she bought twice that amount for tulips, which is 8.  Each tulip costs $2, so that's $16.  Add both $20 and $16 and you have $36.

Hope this helps! :)

The Answer:

21 - 9 = 12, not 11.

explanation:

It is not much else to say here, so straightforward, the answer lies above.

Therefore,

you are correct. 11 + 9 = 20 - 9 = 11, which is correct for the given equation.

Answer:

10:20

Step-by-step explanation:

Answer:

66

Step-by-step explanation:

2x+45+40+77+x=360

3x+162=360

-162=-162

3x=198

198/3

66

Answer:

i think its the last one

Step-by-step explanation:

first what is the time

3:40 - 3:44

that is 4 minutes

4 min = 15.3 g

rate per min

we need to get 4 min to 1

so

answer below i will mark

The function of the amount of money is an illustration of an exponential function

The initial balance of the investment is $700, and the rate is 83.53%

The function of the amount of money in the investment is given as:

[tex]A(t) = 700(0.8353)^t[/tex]

The above function is an exponential function, and an exponential function is represented as:

[tex]A(t) = ab^t[/tex]

Where:

a represents the initial value, and b represents the rate.

By comparison, we have:

a = 700

b = 0.8353 = 83.53%

Hence, the initial balance of the investment is $700, and the rate is 83.53%

Read more about exponential functions at:

https://brainly.com/question/11464095

Answer:

perimeter L = 35 - w

Step-by-step explanation:

L × W = 300 : area , L is the length and W is the width. 2 L + 2 W = 70 : perimeter L = 35 - w : solve for L (35 - W) × W = 300 : substitute in the area equation W = 15 and L = 20 : solve for W and find L using L = 35 - w.

Answer:

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  15

   The  level of significance is  [tex]\alpha = 0.05[/tex]

The null hypothesis is  [tex]H_o:\mu_1 = \mu_2 = \mu_3[/tex]

The alternative hypothesis is [tex]H_a : \mu_1 \ne \mu_2 \ne \mu_3[/tex]

Generally the degree of freedom is mathematically represented  as

       [tex]df = 5 + 5 + 5 - 3[/tex]

=>     [tex]df = 12[/tex]

Generally the critical value of [tex]\alpha = 0.05[/tex] at a degree of freedom of [tex]df = 12[/tex] is

        [tex]t_{0.05 , 12} = \pm 2.1788[/tex]

Answer:

0.5 hours

Step-by-step explanation:

If Jams does a job in 1.5 hours, it will take less time for both of them to work together, hence, taking 30 minutes

TEAMWORK MAKES THE DREAM WORK!

Realizando un corte en cada esquina del cubo como se muestra en la imagen quedarían una figura de 13 caras.

Para saber el número de caras resultante de cortar todas las puntas del cubo debemos tener en cuenta que el cubo tiene 6 caras y 8 puntas.

De acuerdo a lo anterior, debemos remplazar cada punta por una cara, debido a que cada punta va a quedar como una cara luego del corte, es decir que tendríamos que sumar 6 caras y 8 caras producto del corte de las puntas.

6 + 8 = 13

Entonces, el número de caras de esta figura sería 13.

Nota: Esta pregunta está incompleta debido a que le falta la imagen. Aquí está la imagen:

Aprenda más sobre figuras geométricas en: https://brainly.com/question/26798234

The thing that makes a  lot of observers to assume a linear progression is  due to technology and social growth that are said to be are directly proportional.

They can also Assume linear progression  when the observers see that the change that is taking place with one variable is said to be proportion with the another variable

A linear  development is known to be a process where a thing do changes, alter or progresses rightly from one phase to another.

Linear Growth or development is known to be the quantity that increases linearly if it increases by a constant amount for each unit per time

Learn more about  linear progression  from

https://brainly.com/question/25987747

Answer:

Slope = -2/1 = -2

Step-by-step explanation:

You can look at the points on the image and see the "directions" to get from one point to the next: you go down 2 and over 1. This is -2/1, which is -2.

You could also pick and two points and do a calculation. It can be any two points on the line and it will come out the same.

For example (-1,3) and (0,1) are two points on the line. To find slope, subtract the y's and put that on top of a fraction, then subtract x's and put that on the bottom.

3 - 1 goes on top.

-1 - 0 goes below.

3-1 / -1 - 0

2/-1

= -2

Slope = -2

Answer:

(-3,4)--No

(-9,-1)--Yes

(8,-2)--No

(5,3)--Yes

This is your answer...

Hope you have a great day!

Answer:

8 and 2/5

Step-by-step explanation:

Answer:

-14.4444°C

Step-by-step explanation:

(6°F − 32) × 5/9 = -14.44°C

Answer:

mAngle1 + mAngle2 = 180°

Step-by-step explanation:

Knowing that:

Supplementary angles are 180 degree

Solve:

The only one with 180 is the third one.

Thus, the answer is mAngle1 + mAngle2 = 180°

~Lenvy~

Answer:

mAngle1 + mAngle2 = 180°

Step-by-step explanation:

edge 2022

Step-by-step explanation:

We must do the first derivative test. Here is the steps:

Step 1: Differentiate the polynomial once

we get

[tex]2 {x}^{2} - 2x - 112[/tex]

Step 2: Set this equal to zero and solve for x.

[tex]2 {x}^{2} - 2x - 112 = 0[/tex]

[tex] {x}^{2} - x - 56 = 0[/tex]

[tex](x - 8)(x + 7) = 0[/tex]

[tex]x = 8[/tex]

[tex]x = - 7[/tex]

The solutions are your critical points.

So our critical points are (8,-7).

Step 3: Plot -7 and 8 on a number line. First, pick a number lesser than -7 and plug plug in the derivative function.

Let use -10.

[tex]( - 10 - 8)( - 10 + 7) = 54[/tex]

Since that number is positive, this means are increasing when (-oo,-7)

Next, pick a number greater than 8. Let use 9.

[tex](9 - 8)(9 + 7) = 16[/tex]

Since that is positive, the interval is increasing whe (8,oo)

C. If we pick a number in between -7 and 8, we will get a negative number which means the function is decreasing on interval (-7,8)

Answer:

Z = x - µ / ∂

  = 24.2 – 24.6 / 0.07

   =-0.4/ 0.07

  = -5.71

Step-by-step explanation:

Solution:

Mean = µ = 24.4mm

Standard deviation = ∂= 0.07 mm

(a) Diameter less than 24.3 mm

P(x < 24.3)

The formula for normalized z value:

Z = x - µ / ∂

  = 24.3 - 24.4 / 0.07

  = - 0.1 / 0.07

 = -1.4286

P(z  < -1.428) = 1 – p ( z > -1.428)

                       = 1 – p( z < 1.42)

                         =1 – 0.4233

                         = 0.5767

(b) Diameter greater than 24.6 mm

P( x > 24.6)

The formula for normalized z value:

Z = x - µ / ∂

  = 24.3 – 24.6 / 0.07

   =-0.3 / 0.07

   = - 4.285

P( z > -4.285) = 1 – p(z < -4.285)

                        = 1 – p ( z > 4.285)

                        =

(c) Diameter between 24.2 and 24.5 mm.

P(x > 24.5)

Z = x - µ / ∂

  = 24.5 – 24.6 / 0.07

   =-0.1/ 0.07

   = -1.4286

P(z  < -1.428) = 1 – p ( z > -1.428)

                       = 1 – p( z < 1.42)

                         =1 – 0.4233

                         = 0.5767

P(x < 24.2)

Z = x - µ / ∂

  = 24.2 – 24.6 / 0.07

   =-0.4/ 0.07

   = -5.71