I need help please ?

Answer:

Selling price= $1.14

Step-by-step explanation:

Giving the following information:

Purchase cost= $0.95

Mark up percentage= 120% = 1.2

Selling price= $1.14

Selling price= purchase cost * mark up percentage

Selling price= 0.95 * 1.2

Selling price= $1.14

The equation of the function g(x) is g(x) = -2|x - 2| + 5

The function f(x) is given as

f(x) = 2|x - 2| - 5

The rule of the transformation is a reflection across the x-axis

This is represented as

g(x) = -f(x)

So, we have

-f(x) = -2|x - 2| + 5

Substitute g(x) = -f(x) in -f(x) = -2|x - 2| + 5

g(x) = -2|x - 2| + 5

Hence, the equation of the function g(x) is g(x) = -2|x - 2| + 5

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Answer:

After the first translation, the coordinates of the vertices of the triangle will be X (3,-13), Y (0,-8), Z (-7, 1). After the second translation, the coordinates of the vertices will be X (5,-7), Y (2,-2), Z (-5, 7).

The final translation rule that maps the pre-image to the final image is a translation of 2 units right and 6 units up. This can be written as a translation rule of the form (x, y) -> (x + 2, y + 6).

Step-by-step explanation:

After the first translation the coordinates are:

After the second translation the coordinates are:

The final translation rule is:

or

No, a fraction is not a term. The distributive property can be applied to fractions because it is a general mathematical principle.

A fraction is not considered a term in the traditional sense. It is a mathematical expression that represents division. However, the distributive property can still be applied to fractions because the property itself is a fundamental rule of arithmetic that extends beyond specific types of expressions.

The distributive property states that for any real numbers a, b, and c:

a × (b + c) = (a × b) + (a × c).

When working with fractions, we can apply the distributive property as follows:

Let's consider the expression: a × (b/c).

We can rewrite this as: (a × b)/c.

Now, let's distribute the 'a' to 'b' and 'c':

(a × b)/c = (a/c) × b.

In this step, we applied the distributive property to the fraction (a/c) by treating it as a whole.

Although fractions represent division, we can still use the distributive property because it is a general mathematical principle that allows for manipulating expressions involving addition, subtraction, multiplication, and division.

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Given :

Electronic configuration of an electron :

\(1s^2\ 2s^2\ 2p_x^2\ 2p_y^2\ 2p_z^2\ 3s^2 \ 3p_x^2\ 3p_y^2\ 3p_z^2\) .

To Find :

The element having such an electronic configuration .

Solution :

We know , the sum of all the power of s and p in all the orbit gives total number of atoms in elements .

So , atomic number is :

\(Z=2+2+(2+2+2)+2+(2+2+2)\\\\Z=18\)

Since , the atomic number is 18 .

Therefore , the element is Argon .

Hence , this is the required solution .

Answer:

There isn't much to say because there is no image with the options but, no, all these measures of desperation are affected by extreme values

Answer:

-48y+24

Step-by-step explanation:

−6⁢(⁠4y + 4y + (−4)⁠)

=-6(8y+-4)

=-48y+24

Answer:

-48y + 24

Step-by-step explanation:

−6⁢(⁠4y + 4y + (−4)⁠) =

= −6⁢(⁠8y - 4)

= -48y + 24

The enlarged size of the poster will be 13.5 inches.

A scale factor is defined as the ratio of the scale of a given original object to the scale of a new object that is its representation but of a different size (bigger or smaller).

The scale factor is defined as the proportion of the new image's size to that of the previous image.

Given that Alisha wants to enlarge a photograph to make into a poster for her room. The photograph is 6 inches tall. The poster will be created using a scale of 4.5 inches = 2 inches.

Scale factor = 4.5 / 2 = 2.25

The enlarged size of the poster will be calculated as:-

Size = 6 x 2.25

Size = 13.5 inches

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Answer:

30%

Step-by-step explanation:

3+4+6+7= 20

6 (green) / 20

= 30%

Cyrstal earned more per hour. She earned 0.50 cents more that Xavier each hour.

The angle measurements of angle B as represented in the diagram shown is 150°

An equation is an expression that shows the relationship between two or more numbers and variables.

From the diagram:

∠A = ∠B (alternate interior angles)

Hence:

8x - 10 = 3x + 90

x = 20

∠B = 3(20) + 90 = 150°

The angle measurements of angle B as represented in the diagram shown is 150°

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Alessia spent $5,408 on entertainment in 2021.

To determine how much Alessia spent on entertainment in 2021, we need to work backward from the given information about her salary in 2022.

Let's assume Alessia's salary in 2021 was the same as in 2022, which is $26,000 after tax.

Since Alessia spends 35% of her after-tax salary on rent, we can calculate her rent expenditure:

Rent = 35% × $26,000

= $9,100

The remaining amount is split between food, petrol, and entertainment in the ratio 6:11:8.

To determine the ratio's total parts, we sum the individual parts:

Total parts = 6 + 11 + 8 = 25

Next, we calculate the value of one part of the ratio:

One part = ($26,000 - $9,100) / 25

= $16,900 / 25

= $676

Now, we can calculate how much Alessia spent on entertainment in 2021, which is 8 parts of the ratio:

Entertainment expenditure = 8 × $676

= $5,408

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Answer:

Find the unit rate of each printing machine and compare.

Step-by-step explanation:

Answer:

2400

Step-by-step explanation:

Answer:

28.3 (explaination below)! :)

Step-by-step explanation:

Use the formula for cicrumfrence: C=2πr

Radius can be found by splitting the given number in half, (unless you were given the radius already, then you'd just multiply by 2).

Plug in our numbers. C= 2π4.5

Then, multiply.

You'd get 28.27433388230814.

Rounding to the first decimal place, you'd have a final answer of  28.3.

Hope this helps!

Answer:

7/6 =1.16  

Step-by-step explanation:

1.16x16=6

Step-by-step explanation:

(-7+1)/(5-1)=-6/4= -3/2 is the slope

answer is C

Answer:

C

Step-by-step explanation:

The formula for slope is rise/run

Rise is the difference between the y coordinates

Run is the difference between the x coordinates

To find the rise and run:

ex.

(a, b), (c, d)

rise:

d-b

run:

c-a

Slope:

d-b/c-a

In this situation:

rise:

-7-(-1)

run:

5-1

Slope:

-7-(-1)/5-1

= -6/4

=-3/2

So the answer is C

You would need a sample size of at least 138.32 to obtain a 90% confidence interval with a margin of error of plus or minus 3.

To determine whether the credit scores have decreased since 2019, we need to compare the 2019 average credit score of 749 with the lower bound of the 2022 confidence interval of 730.343. Since 730.343 is lower than 749, we can conclude that there is evidence to suggest that the credit scores have decreased since 2019.

Finally, if you want to obtain a 90% confidence interval with a margin of error of plus or minus 3, you can use the formula for the sample size n =

=> (z² x s²) / (E²),

where z is the critical value, s is the estimated standard deviation from a previous study or pilot sample, and E is the desired margin of error.

Since s is unknown in this case, we can use a conservative estimate of 50 for the standard deviation.

Therefore, n = (1.725² x 50²) / (3²) = 138.32.

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The perimeter of rhombus ABCD is 20 units.

To determine the perimeter of rhombus ABCD, we need to find the lengths of its sides. Given the coordinates of the four vertices of the rhombus (A, B, C, D), we can use the distance formula to calculate the lengths of the sides.

The coordinates of the vertices are as follows:

A(1,1), B(-2,-3), C(-5,1), D(-2,5)

Using the distance formula, we can find the lengths of the sides AB, BC, CD, and DA.

AB = √[(x2 - x1)^2 + (y2 - y1)^2]

= √[(-2 - 1)^2 + (-3 - 1)^2]

= √[9 + 16]

= √25

= 5 units

BC = √[(-5 - (-2))^2 + (1 - (-3))^2]

= √[9 + 16]

= √25

= 5 units

CD = √[(-2 - (-5))^2 + (5 - 1)^2]

= √[9 + 16]

= √25

= 5 units

DA = √[(1 - (-2))^2 + (1 - 5)^2]

= √[9 + 16]

= √25

= 5 units

Since all four sides have a length of 5 units, the perimeter of rhombus ABCD is the sum of the lengths of its sides:

Perimeter = AB + BC + CD + DA

= 5 + 5 + 5 + 5

= 20 units

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The dimensions of the rectangle are 7 feet by 9 feet.

Let's use algebra to solve this problem.

Let x be the width of the rectangle in feet. Then, according to the problem, the length of the rectangle is 2 feet longer than the width, or x + 2 feet.

The area of a rectangle is given by the formula\(A = length x width.\) So, we can write:

A = (x + 2) x x

Simplifying this expression, we get:

A = x^2 + 2x

We know from the problem that the area of the rectangle is 63 square feet. So, we can substitute this value for A and solve for x:

63 = x^2 + 2x

Rewriting this equation in standard form:

x^2 + 2x - 63 = 0

Now, we can use the quadratic formula to solve for x:

x = (-2 ± sqrt(2^2 - 4(1)(-63))) / (2(1))

x = (-2 ± sqrt(4 + 252)) / 2

x = (-2 ± sqrt(256)) / 2

x = (-2 ± 16) / 2

x = -9 or x = 7

Since the width of the rectangle cannot be negative, we reject the solution x = -9. Therefore, the width of the rectangle is 7 feet.

The length of the rectangle is 2 feet longer than the width, or x + 2 = 7 + 2 = 9 feet.

So, the dimensions of the rectangle are 7 feet by 9 feet.

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Answer:

I have no idea.

but I need points sorry

Answer:

14a+9c

Step-by-step explanation:

Answer:

Step-by-step explanatio

The median is the value located in the middle or the middle value, in order to find it, first, we have to order the set of numbers like this:

76, 78, 83, 87, 90, 90.

When the number of values is an even number, we just have to take the two values in the middle, sum them up and divide the result by 2, like this:

in this case, the middle values are 83 and 87

Then, the median score equals 85

In this instance, a sample size of 393 adults who live in homes without landlines and use cell phones would be required.

Picking the number of observations or replicates to include in a statistical sample is known as sample size determination. Any empirical study whose objective is to draw conclusions about a population from a sample must take into account the sample size. In reality, a study's sample size is typically chosen based on the expense, convenience, or time required to collect the data as well as the requirement that the sample size have a high enough statistical power. There could be a variety of sample sizes used in complex studies; for instance, there might be different sample sizes for each stratum in a stratified survey. The intended sample size for a census is equal to the population because the entire population's data is being sought.

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Answer:

x ≥ 4

Step-by-step explanation:

Answer:

x <= 4

Step-by-step explanation:

She starts out with $55.

Subtract the cost of the jeans from the total amount she has.

$55 - $27 = $28

$28 is the amount she has left for shirts.

Next take the cost of the shirts and divide it by the total she now has ($28).

28/7 = 4

With $55 dollars, Sasha can spend $27 on jeans and has enough money to buy less, or exactly, 4 shirts.

Answer: x <= 4

Which means she can buy less, or exactly, 4 shirts.

The function "most_corr" takes in a DataFrame "df" that contains columns listed in "y" and "xes", where "xes" is a list of column names in "df" and "y" is the name of a column in "df".

The function returns the column name and Pearson's R correlation coefficient from "xes" that has the highest absolute correlation with "y". In other words, the function calculates the correlation coefficient between each column in "xes" and "y" and returns the name of the column with the highest absolute correlation coefficient.

The term "column" refers to the individual columns within the DataFrame, while "coefficient" refers to the Pearson's R correlation coefficient used to measure the strength of the correlation between two variables.

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To determine if the given set is simply-connected, we need to check if any closed curve in the set can be continuously deformed to a point without leaving the set. In this case, the set {(x, y) | 1 ≤ x^2 + y^2 ≤ 4, y ≥ 0} is connected, meaning that any two points in the set can be connected by a continuous path within the set.

However, it is not simply-connected because there exist closed curves in the set (such as the unit circle centered at the origin) that cannot be continuously deformed to a point within the set without leaving it. Therefore, the answer is that the given set is not simply-connected.
In summary, the set {(x, y) | 1 ≤ x^2 + y^2 ≤ 4, y ≥ 0} is connected but not simply-connected because there exist closed curves within the set that cannot be continuously deformed to a point within the set without leaving it.

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Carolyn made an error in her work because she did not correctly distribute the negative in Step 3.

A system of equations is the given term math for two or more equations with the same variables. The solution of these equations represents the point of the intersection.

You can solve a system of equations by the adding or substitution methods. In the addition method, you eliminate a variable, on the other hand, in the substitution method you replace a variable for the other.

The question gives:3x-2y=7 (1)y=x+2The question shows that Carolyn applies the substitution method because she replaces the variable y (equation 2) in equation 1. See the given step 2.

3x – 2y = 7

3x – 2(x + 2) = 7

3x – 2x - 4 = 7 - here it is the mistake. (Carolyn did not correctly distribute the negative).

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