75 - 4 × (4 - 2)3



AHHH HELP!

the inverse of F(x)=2x-4 is f^-1(x) = (x + 4) / 2.

In simple terms, the inverse function takes the output of the original function and gives you the original input back. So, if you input 2 into the original function, you get 6 as the output. If you input 6 into the inverse function, you get 2 as the output.

I hope this helps!

Answer:

f^-1(x)=( x + 4 ) / 2  

Step-by-step explanation:

by putting f(x) = y , we got the x in y i.e. x = (y+4)/2.

then replace y with x, we get the inverse of function f(x).

Answer:

1 cm and 18 cm

2 cm and 9 cm

3 cm and 6 cm

Step-by-step explanation:

We need to find the factors of 18
which are; 1,18; 2,9; 3,6
So therefore we'd pick:
1 cm and 18 cm

2 cm and 9 cm

3 cm and 6 cm

Answer:

obtuse

Step-by-step explanation:

A circle is 360 degrees

Divide by 3

360/3 =120

This is greater than 90 and less than 180 so it is obtuse

Answer: Yes!

Step-by-step explanation:

Hello, I'm a brainly helper. Well..not really but i want to become one soon so if you need help with any question or anything else let me know, I am ALWAYS happy to help! Thxs.

Answer:

To find the volume of the shipping box in cubic feet, we need to convert the dimensions from inches to feet and then calculate the volume.

Given:

Length = 36 inches

Width = 24 inches

Height = 18 inches

Converting the dimensions to feet:

Length = 36 inches / 12 inches/foot = 3 feet

Width = 24 inches / 12 inches/foot = 2 feet

Height = 18 inches / 12 inches/foot = 1.5 feet

Now, we can calculate the volume of the box by multiplying the length, width, and height:

Volume = Length * Width * Height

Volume = 3 feet * 2 feet * 1.5 feet

Volume = 9 cubic feet

Therefore, the shipping box can hold 9 cubic feet.

Step-by-step explanation:

First convert the units because it's asking for the cubic feet but they give us the measurements in inches.

To convert inches to feet we divide the number by 12.

36 ÷  12 = 3

24 ÷  12 = 2

18 ÷ 12 = 1.5

Now to find the volume, we multiply it all together.

3 × 2 × 1.5 = 9

It can hold 9 cubic feet.

Hope this helped!

Answer:

43.6 has 3 significant figures.

Answer:

no

Hope this helps!

mark me brailiest please

Step-by-step explanation:

The value of -3√5 as the opposite of the square root is -75.

What in mathematics is a square root?

The factor we can multiply by itself to obtain a given number is the number's square root.

               Square root is represented by the symbol sqrt, which stands for square root of, end square root. Squaring an integer is the reverse of finding its square root.

-3√5

The opposite of the square root is the square, so,

-3√5 = -3 × 5²

-3√5 = - 3 × 25

-3√5 = - 75

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Therefore, **x < 7** is the inequality that may be utilized to find x

A mathematical statement known as an inequality compares two expressions using an inequality sign, such as (less than), > (greater than), or (less than or equal to).

For instance, the inequality x + 2 5 signifies that "x + 2 is less than 5".

Let x represent how many days the client paid for pet sitting.

$15 per day plus a $20 fixed service fee equals the total cost of pet sitting.

We are aware that the customer's purchase was under $125. Consequently, we can write:

20 + 15x < 125

Putting this disparity simply:

15x < 105

x < 7

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We can be performed Multiplication on algebraic expressions in the same way as it can be performed on two whole numbers or fractions.

Multiplication of algebraic expressions or variable expressions involves multiplying two expressions combined with various arithmetic operations like addition, subtraction, multiplication, and division and contains constants, variables, terms, and coefficients.

Multiplying the algebraic equation involves the following steps.

1. Multiply the coefficients of the terms, add the powers of the variables with the same base, and obtain the algebraic sum of the like and unlike terms before learning about the multiplication of algebraic expression.

The multiplication of two terms with the same signs is positive, and two terms with different signs are negative.

Example:

−a×−b=ab

a×−b=−ab

We can add the exponents of the same bases in case of multiplication as a^m×a^n=a^m+n

Example:

a^2×a^3=a^2+3=a^5

b^5×b^8=b^5+8=b^13

Algebraic Expression: An algebraic expression is the collection of the constants and the variables connected by fundamental operators like addition (+), subtraction (−), etc.

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Answer:

you take 5/6 and multiply it by 4/1.

which gives you 20/6

then reduce it by dividing the top number by the bottom number

 which gives you 3 with a remainder of 2

you then place the remainder over the

This tells you he practicedfor 3 2/6

Step-by-step explanation:

Answer:

$3040 profit made

Step-by-step explanation:

$13×95=$1235 cost to make all the shoes they sold

$45×95=$4275 money she made

$4275-$1235=$3040 profit

Answer:

ur correct it's A. trust me u look up all the definitions to the other than A. they gonna be wrong already looked em all up

Answer:

3

Step-by-step explanation:

\(log(3x^{3}) - log(x^{2}) = log(\frac{3x^{3}}{x^{2}})\\log(27) - log(x) = log(\frac{27}{x} )\\\)

therefore,

\(\frac{3x^{3} }{x^{2} } = \frac{27}{x} \\3x=\frac{27}{x} \\3x^{2} =27\\x= +3\\x=-3\)

however, since logarithms cannot have negative arguments, x can only be +3

i.e. log(-3) is impossible, and will return MATH ERROR on a calculator.

Answer:

The equations for each situation are

A = 36 + 6t

B = 21 + 9t

After 3 years, Tree A is taller.

Step-by-step explanation:

From the question,

Tree A was 36 inches tall and Tree B was 21 inches tall at the time of planting; and

Tree A grew by 6 inches per year and Tree B grew by 9 inches per  year after planting.

For Tree A,

Given a period of t years after planting, the height would have increased by 6t

∴ A = 36 + 6t

For Tree B,

Given a period of t years after planting, the height would have increased by 9t

∴ B = 21 + 9t

To determine, which tree is taller after 3 years,

t = 3

For Tree A

A = 36 + 6t

A = 36 + 6(3)

A = 36 + 18

A = 54 inches

For Tree B

B = 21 + 9t

B = 21 + 9(3)

B = 21 + 27

B = 48 inches

Hence, After 3 years, Tree A is taller.

Answer:

C

Step-by-step explanation:

The answer is c

Answer:

The 95% confidence interval for the proportion of water specimens that contain detectable levels of lead is (0.472,0.766).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which

z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).

In a sample of 42 water specimens taken from a construction site, 26 contained detectable levels of lead.

This means that \(n = 42, \pi = \frac{26}{42} = 0.619\)

95% confidence level

So \(\alpha = 0.05\), z is the value of Z that has a pvalue of \(1 - \frac{0.05}{2} = 0.975\), so \(Z = 1.96\).

The lower limit of this interval is:

\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.619 - 1.96\sqrt{\frac{0.619*0.381}{42}} = 0.472\)

The upper limit of this interval is:

\(\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.619 + 1.96\sqrt{\frac{0.619*0.381}{42}} = 0.766\)

The 95% confidence interval for the proportion of water specimens that contain detectable levels of lead is (0.472,0.766).

Answer:

5

Step-by-step explanation:

Answer: 504

Step-by-step explanation:

Area: 4 triangles + square

Triangle area = 1/2 x b x h

Square = side x side

4(1/2 x 12x 15) + 12x12

= 504

8 pants wil cost 192 u.m.

10 pants ----> 240u.m

8 pants  ----> x

In a rule of 3, whenever the x is located at the bottom right corner, you always have to multiply upwards and to the right, and then divide the resulting number by the number on the top left. This is the operation you need to make:

x= (8 x 240) / 10

x= 192

Check the attached image to get a better understanding of this process.

8 pants wil cost 192 u.m.

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Proportional quantities are divided into directly and inversely proportional.

Two magnitudes are said to be directly proportional

when we multiply one of them by a number, the other is multiplied by the same number, and when we divide one of them by a number, the other is divided by the same number.

Problem :

If 10 pants cost 240u.m, how much will 8 pants cost?

We have:

\(\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: + \\ \bold{ Assumption \: { \rightarrow} 10 \: pants \: \rightarrow 240 \: u.m\\\sf \: \: \: \: \: \: \: \: \: Question \rightarrow8 \: pants \rightarrow \: x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }\)

As can be seen, the number of pants and the cost are magnitudes directly proportional, and therefore, we put the + sign below the pants and the - sign above.

Therefore we will have:

\(\boxed{ \bold{ \: x = \dfrac{240 * 8}{10} = 192 \: u.m} }\)

So the 8 pants cost 192.

The solution that makes both expressions true is x = 8.55556 and y = 10.31746.

To solve for x and y, we need to use a system of equations involves finding the values of x and y that satisfy both equations simultaneously.

We can start by using the first equation to solve for x:

2x + 7x = 77

Combining like terms:

9x = 77

Dividing both sides by 9:

x = 8.55556 (rounded to six decimal places)

Now that we know the value of x we can use either equation to solve for y. Let's use the second equation:

5x + 7y = 115

Substituting x = 8.55556:

5(8.55556) + 7y = 115

Simplifying:

42.7778 + 7y = 115

Subtracting 42.7778 from both sides:

7y = 72.2222

Dividing both sides by 7:

y = 10.31746 (rounded to six decimal places)

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Hello,

I hope you and your family are doing well!

If Ashley earned $40,000 last year and the first $16,000 is taxed at 10% and income above that is taxed at 21%, the amount of tax that Ashley owes can be calculated as follows:

The first $16,000 of Ashley's income is taxed at a rate of 10%, so the amount of tax on this portion of her income is $16,000 * 10% = $1,600.

The remaining $24,000 of Ashley's income is taxed at a rate of 21%, so the amount of tax on this portion of her income is $24,000 * 21% = $5,040.

The total amount of tax that Ashley owes is the sum of these two amounts or $1,600 + $5,040 = $6,640

Please consider giving this 5 stars and brainliest if you find it helpful.

Happy to help!

Limit's characteristics include its laws. The limit of a function is determined using them. A constant's limit is that very same constant.

The complete question is,

Which limitations rules apply?

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Fern can plan her fruit bunch of flowers procedure and make sure she utilizes the appropriate amount of each piece of fruit in each bouquet by understanding the ratio of basic fruit to chocolate-dipped fruit.

She used a pencil to draw a circular on such a piece of paper. He handed me a cake piece in exchange for an orange. The broken cup's fragments were put back together with adhesive. She wears some beautiful jewelry.

That's an intriguing piece of information regarding Fern's Fruit Bouquets! We can state that ratio of plain fruits to caramel fruit is 3:2 if Fern utilizes 3 pieces of basic fruit for each and every 2 pieces of cocoa fruit. Fern will therefore utilize 2 pieces of chocolate-covered fruit for each and every 3 pieces of regular fruit.

This ratio can be expressed as a fraction as well. Say Fern consumes x pieces of unadorned fruit. She will then use (2/3)x pieces of fruit that have been covered in chocolate. This is due to the fact that (2/3) represents a ratio of 2 pieces of chocolate-covered fruit to every 3 pieces of unadorned fruit.

Fern will use (2/3)*6 = 4 pieces of chocolate-covered fruit if she consumes, for instance, 6 pieces of plain fruit.

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Answer:

A sample size of 1068 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which

z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

95% confidence level

So \(\alpha = 0.05\), z is the value of Z that has a pvalue of \(1 - \frac{0.05}{2} = 0.975\), so \(Z = 1.96\).

CBS wishes to have 95% confidence and a margin of error in its estimate of ±0.03. What sample size is required?

We need a sample size of n, and is found when M = 0.03.

We dont have an estimate for the true proportion, so we use \(\pi = 0.5\), which is when the largest sample size will be needed.

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

\(0.03 = 1.96\sqrt{\frac{0.5*0.5}{n}}\)

\(0.03\sqrt{n} = 1.96*0.5\)

\(\sqrt{n} = \frac{1.96*0.5}{0.03}\)

\((\sqrt{n})^2 = (\frac{1.96*0.5}{0.03})^2\)

\(n = 1067.1\)

Rounding up,

A sample size of 1068 is required.

Answer:

0

Step-by-step explanation:

Given data:

The first equation is y=4x.

The second equation is 8x+y=18.

Substitute first equation into second equation.

Substitute 3/2 for x in the first equation.

Thus, the value of x is 3/2, and the value of y is 6.

Answer:

1.x=12

6/12 divided by 3 for both denominator and numerator

2. x=5

2/10 divided by 3 for both denominator and numerator

5. x=60

60/100 divided by 20 for both denominator and numerator

Find out #3 for yourself

Step-by-step explanation:

The domain of the function f(x) = -3x + 2 is (-∞, +∞), representing all real numbers, and the range is (-∞, 2], representing all real numbers less than or equal to 2.

The function f(x) = -3x + 2 is a linear function defined by a straight line. To determine the domain of this function, we need to identify the range of values for which the function is defined.

The domain of a linear function is typically all real numbers unless there are any restrictions. In this case, there is no explicit restriction mentioned, so we can assume that the function is defined for all real numbers.

Therefore, the domain of the function f(x) = -3x + 2 is (-∞, +∞), which represents all real numbers.

Now, let's analyze the range of the function. The range of a linear function can be determined by observing the slope of the line. In this case, the slope of the line is -3, which means that as x increases, the function values will decrease.

Since the slope is negative, the range of the function f(x) = -3x + 2 will be all real numbers less than or equal to the y-intercept, which is 2.

Therefore, the range of the function is (-∞, 2] since the function values cannot exceed 2.

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Answer:

A and C

Step-by-step explanation:

Slope of the equation is 15, that represents calories per gram of carbohydrate increased.

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.

Given equation,

y = 15x - 25

x is number of grams of carbohydrates in bread

y is number of calories in bread

Comparing it with y = mx + c

slope m = 15

y - intercept c = -25

Slope represents calories per gram of carbohydrate increased.

Hence, 15 is slope of the equation, which represents calories per gram of carbohydrate increased.

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