Find the domain of (f(g(x))) when f(x)= square root of x-1 and g(x)= 1/4x​

Answers

Answer 1

Answer:

[tex]\large\boxed{Domain:\ x\in\left(0;\ \dfrac{1}{4}\right>\to0<x\leq\dfrac{1}{4}}[/tex]

Step-by-step explanation:

[tex]f(x)=\sqrt{x-1},\ g(x)=\dfrac{1}{4x}\\\\f\bigg(g(x)\bigg)-\text{instead of x in the function equation f(x) put}\ \dfrac{1}{4x}:\\\\f\bigg(g(x)\bigg)=\sqrt{\dfrac{1}{4x}-1}=\sqrt{\dfrac{1}{4x}-\dfrac{4x}{4x}}=\sqrt{\dfrac{1-4x}{4x}}\\\\\text{The domain}\ D:\\\\\dfrac{1-4x}{4x}\geq0\ \wedge\ 4x\neq0\\\\\dfrac{1-4x}{4x}\geq0\iff(1-4x)(4x)\geq0\\\\1-4x=0\to4x=1\to x=\dfrac{1}{4}\\\\4x=0\to x=0\\(look\ at\ the\ picture)\\\\(1)\qquadx\in\left<0,\ \dfrac{1}{4}\right>\\\\\\4x\neq0\qquad\text{divide both sides by 4}\\\\(2)\qquad x\neq0[/tex]

[tex]\text{From}\ (1)\ \text{and}\ (2)\ \text{We have}\ x\in\left(0,\ \dfrac{1}{4}\right>[/tex]


Related Questions

26 was divided by a power of ten to get 0.26. What power of ten was it divided by?
10
100
1,000
Please Help me solve this problem I will give you brainlist and 30 points Please

Answers

100

I got the answer by 26 divided by 0.26

Answer:

its 100 trust me

solve the following equation algebraically 3x^2=12​

Answers

Answer:

The value of x is 2 or -2.

Step-by-step explanation:

Consider the provided equation.

[tex]3x^2= 12[/tex]

We need to solve the above equation for x.

Divide 3 from both the sides.

[tex]\frac{3x^2}{3}=\frac{12}{3}[/tex]

[tex]x^2=4[/tex]

Square root both the sides.

[tex]x=\pm \sqrt{4}[/tex]

[tex]x=\pm 2[/tex]

Hence the value of x is 2 or -2.

The solution to the equation  [tex]3x^2 = 12[/tex]  is [tex]x = \pm2[/tex], which is [tex]x = 2[/tex] and [tex]x = -2.[/tex]

To solve the equation [tex]3x^2 = 12[/tex] algebraically:

Divide both sides of the equation by 3 to isolate the [tex]x^2[/tex] term:

[tex]\frac{3x^2}{3}=\frac{12}{3}[/tex]

[tex]x^2 = 4[/tex]

Take the square root of both sides to solve for x:

[tex]\sqrt{x^2}=\sqrt{4}[/tex]

[tex]x = \pm2[/tex]

Hence, the solutions to the equation [tex]3x^2 = 12[/tex] are [tex]x = 2[/tex] and [tex]x = -2.[/tex]

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Write 91.5% as a decimal

Answers

Answer:

0.915

Step-by-step explanation:

move the decimal two to the left and take a the percentage

Answer:

The answer is .915

Step-by-step explanation:

91.5/100 = .915


The value of c is equal to _____.

A.√82
B.√41
C.√410
D.√841

Answers

a^2 + b^2 = c^2(hypotenuse)

a=20^2=400

b=21^2=441

c^2=400+441

c^2=841

take the square root of 841

answer is D

the answer is (D) 841 ( The value of C is equal to 841)

How do you find the measure of angle YXZ?​

Answers

Answer:

90 Degrees

Step-by-step explanation:

The find the measure of that angle, find the measure of it's intercepted arc, which is already given as 180. When you find the measure of the intercepted arc, to find the measure of the angle/ divide the measure of the intercepted arc by 2, since the angle is on the circle and boom you get 90 degrees

A spray bottle holds up to 1 cup of the cleaning solution when the spray bottle is full what fraction of the cleaning solution is vineger​

Answers

The fraction of the cleaning solution that is vineger​ is 1/16

What fraction of the cleaning solution is vineger​

From the question, we have the following parameters that can be used in our computation:

Ratio = 1 to 15

This means that

Vinegar : Others =1 : 15

Where, we have

Total = 1 + 15

Total = 16

Also, we have

Vinegar = 1

Using the above as a guide, we have the following:

Fraction of vinegar = 1/16

Hence, the fraction of the cleaning solution that is vineger​ is 1/16

Question

A spray bottle holds up to 1 cup of the cleaning solution when the spray bottle is full what fraction of the cleaning solution is vineger​ if the ratio of vinegar to content is 1 to 15

If events A and B are INDEPENDENT, then
A) A and B must occur together.
B) A and B cannot occur together.
C) A and B must occur simultaneously
D) A's occurrence cannot affect the probability of B's occurrence.

Answers

Answer:

They can't occur together because independent means by itself.

Step-by-step explanation:

The correct answer is D) A's occurrence cannot affect the probability of B's occurrence. This reflects the defining characteristic of independent events in probability, where the occurrence of one event does not influence the likelihood of another.

If events A and B are independent, then this means that the occurrence of event A does not affect the probability of event B occurring, and vice versa. This is a fundamental concept in the study of probability which distinguishes independent events from dependent or mutually exclusive events.

Among the options provided, the correct choice is D) A's occurrence cannot affect the probability of B's occurrence. Independent events have no influence on each other, meaning that if you know event A has happened, this knowledge does not change the likelihood of event B happening, and conditional probability does not apply here.

On the other hand, mutually exclusive events cannot occur together. If A and B were mutually exclusive, then the probability of both A and B occurring at the same time would be zero. This is not the case with independent events, where the probability of A and B occurring is simply the product of their individual probabilities if the events are occurring simultaneously.

Which function is graphed below?

Answers

Answer:

Shown below

Step-by-step explanation:

This is a step function which is a type of function defined by two or more functions. To write the function, we can follow these steps:

STEP 1. A linear function.

This function goes from [tex]-\infty[/tex] to [tex]2[/tex] without including this last value in the domain because at [tex]x=2[/tex] we have a hole. By writing the equation:

[tex]The \ equation \ of \ the \ line \ with \ slope \ m \\ passing \ through \ the \ point \ (x_{1},y_{1}) \ is:\\ \\ y-y_{1}=m(x-x_{1})[/tex]

So:

[tex]P_{1}(1,0) \\ P_{2}(2,2) \\ \\ y-0=\frac{2-0}{2-1}(x-1) \\ \\ y=2(x-1) \therefore \boxed{y=2x-2}[/tex]

[tex]f(x)=2x-2, \ \ -\infty<x \leq 2[/tex]

STEP 2. Constant function.

This function goes from [tex]2[/tex] to [tex]5[/tex] including both values in the domain because at [tex]x=2[/tex] and at [tex]x=5[/tex] we have dots.

So:

[tex]f(x)=4, \ \ 2 \leq x \leq 5[/tex]

STEP 3. Linear function.

This is also a linear function but goes from [tex]5[/tex] to [tex]+\infty[/tex] without including [tex]x=5[/tex] in the domain because we have a hole here. By writing the equation:

So:

[tex]P_{1}(5,6) \\ P_{2}(6,7) \\ \\ y-6=\frac{7-6}{6-5}(x-5) \\ \\ y=x-5+6 \therefore \boxed{y=x-1}[/tex]

[tex]f(x)=x+1, \ \ 5<x \leq +\infty[/tex]

Finally, our step function is:

[tex]f(x)=\left\{ \begin{array}{c}2x-2,\;-\infty<x\leq2\\4,\;2\leq x\leq5\\x+1,\;5<x\leq+\infty\end{array}\right.[/tex]

Write the rule for finding a reflection of a point across the y-axis. Use this rule to find the coordinates for the reflection of point (−3, −6) across the y-axis.

Answers

Answer:

Step-by-step explanation:

i like to visualize it on a graph, it is a lot easier,

but the answer is (3,-6)

Please help and thank you

Answers

Answer: the answer is c

Step-by-step explanation: the first line is the min and the next is q1 and then the medium and q3 max

If
= =, then xis
can you plz help me fast​

Answers

Answer:

x=8

Step-by-step explanation:

9        3

---- = -----

24      x

Using cross products

9 * x = 3 * 24

Divide each side by 9

9x/9 = 3*24/9

x = 3/9 * 24

x = 1/3 *24

x = 8

what is -2.3-(4.5-3 1/2)

Answers

Answer:

-3.3

Step-by-step explanation:

Multiply both numerators and denominators. Result fraction keep to lowest possible denominator.

Answer:

-2.3 - (4.5 - 3½) = -3.3

Step-by-step explanation:

Hope this helps.

What is the slope of the line that passes through the points (-2, 4) and (1, 10)?

Answers

Answer:

2

Step-by-step explanation:

The slope of a line is found by using

m = (y2-y1)/(x2-x1)

    (10-4)/(1--2)

    6/(1+2)

   6/3

    2

What is the greatest common factor of 48 and 81

Answers

Answer:

3

Step-by-step explanation:

Find the prime factorization of 81, which is 3 x 3 x 3 x 3. Next, do the same with 48, which is 2 x 2 x 2 x 2 x 3. Lastly, to find the gcf, multiply the prime factors that are common to both numbers. The GCF is 3

The required greatest common factor of 48 and 81 is 3.

To find the greatest common factor (GCF) of 48 and 81, we need to determine the largest number that evenly divides both 48 and 81.

We can start by listing the factors of each number:

Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Factors of 81: 1, 3, 9, 27, 81

From the lists, we can see that the common factors of 48 and 81 are 1 and 3. However, we are looking for the greatest common factor, which in this case is 3.

Therefore, the greatest common factor of 48 and 81 is 3.

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una parcela rectangular tiene un perimetro de 180m . si el largo mide cuatro veces mas q el ancho ¿cuales son las dimensiones de la parcela?

Answers

La respuestaaaaaaaaaaaaaaa

An equation is shown below...

4c+2c=4c+11/2

What value of 2c makes the equation true.

Answers

Answer:

c = 11/4

Step-by-step explanation:

One way of doing this is to let 2c = x.  Then our equation becomes

2x + x = 2x + 11/2, or x = 11/2.

But 11/2 = 2c.  Thus, c = 11/4

A sociologist found that in a random sample of 50 retired men, the average number of jobs they had during their lifetimes was 7.2. The population standard deviation is 2.1
Find the 99% confidence interval of the mean number of jobs. Do not round the z value, it should have two decimal places, example 2.34. Round the interval to one decimal place, example 3.2 < μ < 5.6

Answers

Final answer:

The 99% confidence interval for the mean number of jobs held by the retired men in the study is approximately 6.3 < μ < 8.1

Explanation:

To calculate the 99% confidence interval, we need the sample mean, the population standard deviation, the square root of the sample size, and the z-value associated to a 99% confidence. In this case, we know the following:

Sample mean (x-bar) = 7.2 jobs Population standard deviation (σ) = 2.1 jobs Sample size (n) = 50 It is known that the z-value for a 99% confidence level is 2.57

The confidence interval formula is given by the following equation:

x-bar ± z * (σ/√n)

Subbing the values into the equation, we get:

7.2 ± 2.57 * (2.1/√50)

The 99% confidence interval would therefore be approximately 6.3 < μ < 8.1

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at what point does the line with equation y=4-2x cut the y axis?

Answers

Answer:

4

Step-by-step explanation:

This equation is in a reversed form of slope-intercept, or y=mx+b. In this form, b is the y-intercept and in the equation b is equal to 4 and the slop is 2!

rearrange the equation so w is the independent variable.

−2u+6w=9

Answers

Answer:

[tex]u=3w-4.5[/tex]

Step-by-step explanation:

we have

[tex]-2u+6w=9[/tex]

Solve for u

That means ------> isolate the variable u (dependent variable)

Subtract 6w both sides

[tex]-2u=9-6w[/tex]

Divide by -2 both sides

[tex]u=(9-6w)/(-2)[/tex]

[tex]u=3w-4.5[/tex]

Answer: u = -9/2 + 3w

Step-by-step explanation:

Hi, An Independent Variable in an Equation is a variable that may have its value freely chosen without considering values of any other variable. Is also known as the input value of a function.

So, to rearrange we have to isolate u:

-2u+6w=9

-2u =9 -6w

2u = -9 +6w

u= (-9 +6w)/2

u = -9/2 + 3w

Feel free to ask for more if needed or if you did not understand something.

What is the value of x?

Answers

i believe 68 is the answer.

68! Is the correct answer

PLEASE HELP ME ASAP !!!!​

Answers

Answer:

The correct answer is third option

The sum of any number and its opposite is 0

Step-by-step explanation:

It is given an expression,

8.29 * (-5.62 + 5.62)/5.62

To find the correct reason

Here - 5.62 + 5.62 = 0

5.62 is opposite to - 5.62

because sum of a number and its opposite is 0.

Therefore the correct answer is third option.

The sum of any number and its opposite is 0

Answer:

The sum of any number and it's opposite is 0.

Step-by-step explanation:

Given expression is [tex]8.29\cdot\frac{-5.62+5.62}{5.62}[/tex]

Now we need to find the reason about why the given expression equals to 0.

If you look at the numerator carefully then you will find that numerator contains two terms -5.62 and +5.62 which are exactly same and opposite in sign. So they will cancel each other and give result 0.

After that we get only multiplication and division operation and we know that multiplication by 0 gives 0. that's why the final answer is 0.

So the correct choice is "The sum of any number and it's opposite is 0."

confused can someone help

Answers

Answer:

I believe the answer her is D.

Step-by-step explanation:

Answer: A

Step-by-step explanation: This Is A. every X Value In That Table Corresponds To Exactly One Y Value.

In your own words, describe the process for solving a system of linear equations using the Addition aka Elimination method.

Answers

Answer:

Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ...

Step 2: Subtract the second equation from the first.

Step 3: Solve this new equation for y.

Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.

Step-by-step explanation:

Answer:

To solve a system of linear equations, we eliminate a variable from the equations by multiplying its coefficient with a suitable number so that they cancel out each other.

Then we are left with only one variable and we add/subtract them to get their value.

When we get the value of one variable, we can substitute it in either of the equations to find the value of the other variable.

What is the surface area in square inches

Answers

Answer:

62

Step-by-step explanation:

2* 2*3 + 5*10 = 12 + 50 =62

Answer:

The answer is 62.hope this helps.☻♥

whats the distance between point A (-2,-1) and point B (3,2)

A. √34
B. √8
C. 4
D. 5

Answers

Answer:

d = √34

Step-by-step explanation:

(-2, -1) & (3, 2)

d = √[(x₂ - x₁)² + (y₂ - y₁)²]

d = √[(3 + 2)² + (2 + 1)²]

d = √[(5)² + (3)²]

d = √(25 + 9)

d = √34

Answer:   A. √34

Step-by-step explanation:

I had the same problem

Can someone please answer this for me

Answers

Answer:

A = 30m + 35

Step-by-step explanation:

let A be the amount saved and m represent month

Note the difference in the amount saved is constant, that is

185 - 155 = 155 - 125 = 125 - 95 = 95 - 65 = 30

We can express this as

A = 30m + c

To find c use any pair from the table and substitute into the equation

using (3, 125) then

125 = (3 × 30) + c

125 = 90 + c ( subtract 90 from both sides )

c = 125 - 90 = 35, thus

A = 30m + 35 ← linear relationship

As a check

When m = 4, A should be 155

A = (4 × 30) + 35 = 120 + 35 = 155 ← correct

Linear function representing the table is

A(m) = 30m + 35

-10(1-9)+6(x-10) please helppppp

Answers

Answer:

-10 + 90x + 6x - 60

= 96x - 70

Answer:

96x - 70

Step-by-step explanation:

Remove the brackets on both expressions.

-10 + 90x + 6x - 60

Add the xs together.

-10 + 96x - 60

combine the - 10 and - 60

96x - 70

Don't go any further. Nothing else combines.

A swimming pool is open for7 1/2 hours per day. the pool keeps one lifeguard on duty at a time. And each life guard's shift is 1 1/2 hours. How many shifts are there per day?
Please show work. Thanks

Answers

Answer:

[tex]5\ shifts[/tex]

Step-by-step explanation:

we know that

To find out the number of shifts per day, divide the total number of hours per day the pool is open by each lifeguard's shift.

Convert to an improper fraction first

[tex]7\frac{1}{2}\ h=\frac{7*2+1}{2}=\frac{15}{2}\ h[/tex]  

[tex]1\frac{1}{2}\ h=\frac{1*2+1}{2}=\frac{3}{2}\ h[/tex]  

so

[tex](15/2)/(3/2)=15/3=5\ shifts[/tex]

Please help!!! BRAINLIEST (number 5 the last one)

Answers

Answer:

12x + 30y

156

Step-by-step explanation:

To use the distributive property, you multiply the number or quantity outside the parentheses (6 in this problem) by each of the numbers or quantities inside the parentheses (2x and 5y in this problem).

You started out correctly writing 6(2x), but then you must multiply 6 by 5y too, so you should get 6(2x) + 6(5y). Then you do the two multiplications to get 12x + 30y.

Here are the steps:

6(2x + 5y) =

= 6(2x) + 6(5y)

= 12x + 30y

The expression is: 12x + 30y

Now we use the expression with the values x = 3 and y = 4 to find the area.

12x + 30y =

= 12(3) + 30(4)

= 36 + 120

= 156

Calculate the unit rate for each item. Round to the nearest cent
A box of 4 light bulbs costs $3.79
A bag of 5 oranges costs $2.19.
A package of 12 bars of soap costs $5.25

Answers

Answer:

Box=0.95

Orange bag=0.44

Package=0.44

Step-by-step explanation:

Divide the cost by the amount of whatever. For ex. The 3.79/4 because there are 4 boxes.

Final answer:

The unit rate for a box of 4 light bulbs is $0.95 per bulb, for a bag of 5 oranges it's $0.44 per orange, and for a package of 12 bars of soap, the unit rate is $0.44 per bar.

Explanation:

To calculate the unit rate for each item, you divide the total cost by the number of items in the package. This tells you the cost per single item. Let's calculate the unit rates, rounding to the nearest cent.

A box of 4 light bulbs costs $3.79. Unit rate: $3.79 ÷ 4 = $0.95 per light bulb.A bag of 5 oranges costs $2.19. Unit rate: $2.19 ÷ 5 = $0.44 per orange.A package of 12 bars of soap costs $5.25. Unit rate: $5.25 ÷ 12 = $0.44 per bar of soap.

Remember, when working with prices, it's standard practice to round to the nearest cent, which represents the smallest unit of currency used in transactions.

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