Sandra bought 4 pounds of sweet potatoes for $6.40. What is the cost per pound of the sweet potatoes?

The point (-5,-3) reflected over the y-axis is (5, -3).

There are two ways of reflection.

Along x-axis:

(x, y) – (x, -y)

Along y-axis:

(x, y) - (-x, y)

We have,

(-5, -3)

Now,

Along y-axis:

(x, y) → (-x, y)

So,

(-5, -3) → (-(-5), -3) = (5, -3)

Thus,

(5, -3) is the reflected point.

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Standard deviation of data represents hours worked per day by entry level employees is 2.9

The following set of data represents hours worked per day by entry level employees :

14, 7, 10, 9

First calculate the mean of the sample

Mean ([tex]\overline{X}[/tex])= [tex]\frac{14+7+10+9}{4}[/tex]

Mean = [tex]\frac{40}{4}[/tex]

[tex]\overline{X}[/tex]  = 10

Now, calculate the standard deviation:

Standard deviation = [tex]\sqrt\frac{\sum{(x_i - \overline{X}})^{2}}{N -1}[/tex]

Standard deviation = [tex]\sqrt \frac{(14-10)^{2}+(7-10)^{2}+(10-10)^{2}+(9-10)^{2}}{3}[/tex]

Standard deviation = [tex]\sqrt\frac{16+9+0+1}{3}[/tex]

Standard deviation = [tex]\sqrt{8.66}[/tex] = 2.9

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Answer:

w = (10√3)/3

x = 5

y = 5√2

z = (5√3)/3

Step-by-step explanation:

→ The length of "x" is also 5 units because 45-45-90 triangles have the same leg lengths.

→ The length of "y" is 5√2 units because the hypotenuse of a 45-45-90 triangle is √2 times bigger than either leg length.

→ The length of "z" is 5/√3 or (5√3)/3 units because the longer leg length of a 30-60-90 triangle is √3 times bigger than the shorter leg length

→ The length of "w" is (10√3)/3 units because the longer leg length is 2 times bigger than the shorter leg length of a 30-60-90 triangle

See below for more information about general rules for 30-60-90 and 45-45-90 triangles!

Answer:

MAGNITUDE AND DIRECTION OF A VECTOR

Given a position vector →v=⟨a,b⟩,the magnitude is found by |v|=√a2+b2. The direction is equal to the angle formed with the x-axis, or with the y-axis, depending on the application. For a position vector, the direction is found by tanθ=(ba)⇒θ=tan−1(ba)

Step-by-step explanation:

The given statement is true, The set of all possible outcomes during the course of an experiment is called a sample-space.

Sample-space, in probability, is referred to as the collection of all possible outcomes in any random experiment. It is denoted by "S".

Since it is a set, it is shown within the braces.

Given statement,

The set of all possible outcomes during the course of an experiment is called a sample-space.

By the definition of sample space, statement is true.

Example: Toss a coin

Sample-space, S={H,T}

H= head

T= tail

Hence, The set of all possible outcomes of any experiment is called sample-space.

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The length of the part of the table that Dina will be painting is 21.991595 feet.

Circumference refers to the distance around the edge of a circle. It is the length of the perimeter of a circle and is defined as the product of the circle's radius and its constant pi (π). The formula for the circumference of a circle is:

C = 2πr

where C is the circumference, π is approximately equal to 3.14, and r is the radius of the circle.

The circumference of a circle is an important concept in geometry, trigonometry, and engineering, as it provides a measure of the size and shape of a circular object. Circumference is used in many applications, such as determining the size of wheels, gears, and other circular objects, as well as in the calculation of areas and volumes of circular shapes.

To find the length of the part of the circular table that Dina will be painting, we need to find the circumference of the circle.

Circumference = 2 * π * r

Where r is the radius of the circle. In this case, the radius is 3.5 feet, so:

Circumference = 2 * π * 3.5

Circumference = 2 * 3.14159 * 3.5

Circumference = 21.991595 feet (to 4 decimal places)

So, the length of the part of the table that Dina will be painting is 21.991595 feet.

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Answer: $180

Step-by-step explanation:

180 x 15% = 27
27 - 180 = 153

Therefore , the solution of the given problem of expression comes out to be its final simplification is 5ln4y - 2lnx.

There is a need for mathematical operations such addition, multiplication, multiplication, and division. When variable combined, they produce the following: A mathematical operator, some data, and an equation A statement of fact is composed of values, parameters, plus operations like additions, subtractions, multiplications, and divisions. It is possible to contrast and compare various sentences and words.

Here,

Given :

To expand the given expression :

=> ln [ (4y)⁵/ x² ]  

=> ln [ (4y)⁵/ x² ]  

=> ln(4y)⁵ - lnx²

=> 5ln4y - 2lnx

Thus,

its final simplification is : 5ln4y - 2lnx.

Therefore , the solution of the given problem of expression comes out to be its final simplification is 5ln4y - 2lnx.

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Answer:

1 wow

Step-by-step explanation:

Answer:

P(A∩B) = 0

P(A) = 0.1667

P(B) = 0.8333

=================================================

Explanation:

The events

are mutually exclusive. There isn't any overlap. This is because event B involves "at least 2 rolls", meaning we cannot get 5 on the first roll. Either event A happens, or B does, but not both at the same time.

This allows us to say P(A∩B) = 0

In a venn diagram, the overlapped region between circles A and B would have probability 0 marked inside.

-----------------------

P(A) = 1/6 since there is exactly one side labeled "5" out of 6 sides total. This converts to the approximate decimal form 1/6 = 0.1667 when rounding to four decimal places. The 6's go on forever, but of course we have to round at some point.

------------------------

We found that P(A) = 1/6. The complement to this is 1-(1/6) = 5/6, which is the probability of rolling anything but a "5". This fraction represents the scenario "at least 2 rolls are needed for the 1st '5' to show up" since we forced the first roll to be anything but 5.

Put another way, we have two options:

The two probabilities 1/6 and 5/6 add to 6/6, aka 1, to represent 100% of all possible cases. This means P(A)+P(B) = 1 for this scenario.

The fraction 5/6 converts to the approximate decimal form of 5/6 = 0.8333; use a calculator or long division to determine this value.

Kara's grandmother knitted the cap during the afternoon is [tex]\frac{1}{2}[/tex].

A fraction is a number that represents the part of a whole. It is in the form of [tex]\frac{a}{b}[/tex] , in which upper 'a' part denotes numerator and the lower part 'b' denotes the numerator.

Kara's grandmother knitted the cap,

In the morning = [tex]\frac{1}{5}[/tex]

In the evening = [tex]\frac{7}{10}[/tex]

She knitted during the afternoon = [tex]\frac{7}{10} -\frac{1}{5}[/tex]

                                                       = [tex]\frac{7}{10} - \frac{2}{10}[/tex]

                                                       = [tex]\frac{5}{10} = \frac{1}{2}[/tex]

Hence, Sara's grandmother knitted the cap during the afternoon =[tex]\frac{1}{2}[/tex].

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The average confidence interval, according to our 80% level of confidence, falls between 31.54 and 35.86 minutes for the total population.

You only have a 5% probability of making a mistake with a 95% confidence interval. You have a 10% probability of being mistaken when the confidence interval is 90%. The difference between a 95 percent and 99 percent confidence interval is the width of the interval (for example, plus or minus 4.5 percent instead of 3.5 percent).

Confidence intervals include details about the range in which the true value is likely to fall, as well as the kind and magnitude of the effect that has been proved. Conclusions concerning the can be made as a result of this.

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To convert a point from Cartesian coordinates to cylindrical coordinates, use the formulae:

r²=x²+y² ,

tanθ=y/x, and z=z

What are coordinates?

A pair of numbers that use the separations between the two reference axes to define the location of a point on a coordinate plane. usually represented by the x- and y-values, respectively, (x, y).

The position of a point or a shape in a given space is determined by coordinates, which are numbers (a map or a graph ).

To convert a point from Cartesian coordinates to cylindrical coordinates, use the formulae:

r²=x²+y² ,

tanθ=y/x, and z=z

Cartesian coordinates are also called as rectangular coordinates

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To convert a point from Cartesian coordinates to cylindrical coordinates, use the formulae:

r²=x²+y² ,

tanθ=y/x, and z=z

What are coordinates?

A pair of numbers that use the separations between the two reference axes to define the location of a point on a coordinate plane. usually represented by the x- and y-values, respectively, (x, y).

The position of a point or a shape in a given space is determined by coordinates, which are numbers (a map or a graph ).

To convert a point from Cartesian coordinates to cylindrical coordinates, use the formulae:

r²=x²+y² ,

tanθ=y/x, and z=z

Cartesian coordinates are also called as rectangular coordinates

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Answer: The 2013-2014 salary can be calculated as follows:

$483,000 + ($483,000 * 3.1%) = $483,000 + $14,973 = $497,973.

So, the university president's 2013-2014 salary was approximately $497,973 after receiving a 3.1% raise.

Step-by-step explanation:

Answer:

[tex]\huge\boxed{\sf SA \approx 967.1\ cm\²}[/tex]

Step-by-step explanation:

Radius = r = 7 cm

Height = h = 15 cm

Surface Area = SA = ?

Surface Area of a cylinder = 2πrh + 2πr²

Using 3.14 for π

Now, Put the given data in the above formula.

SA = 2(3.14)(7)(15) + 2(3.14)(7)²

SA = 659.7 + 2(3.14)(49)

SA = 659.4 + 307.72

[tex]\rule[225]{225}{2}[/tex]

The electric field force does 1.90 x 10⁻⁸ J of work to move the two point charges from 0.30 m to 1.05 m apart.

The electric field is a vector field that represents the force experienced by a charged particle due to an electric charge distribution. It is a measure of the electric force per unit charge at a particular point in space. The electric field is defined as the negative gradient of the electric potential, which is the energy per unit charge that a charged particle would have at that point in space. The electric field can be used to calculate the force experienced by a charged particle in the presence of other charges, and is a fundamental concept in the study of electromagnetism.

The electric field force between two point charges is given by Coulomb's law:

F = k * (q₁ * q₂) / r²

where k is the Coulomb constant (8.99 x 10⁹ N m²/C²), q₁ and q₂ are the magnitudes of the charges, and r is the distance between the charges.

To calculate the work done by the electric field force, we need to find the force at the initial distance (0.30 m) and the final distance (1.05 m), and then subtract the work done at the initial distance from the work done at the final distance.

At a distance of 0.30 m, the force is:

F = k * (1.75 x 10⁻⁸ C)² / (0.30 m)² = 4.02 x 10⁻⁸ N

The work done at this distance is:

W = F * 0.30 m = 1.21 x 10⁻⁷ J

At a distance of 1.05 m, the force is:

F = k * (1.75 x 10⁻⁸ C)² / (1.05 m)² = 1.33 x 10⁻⁸ N

The work done at this distance is:

W = F * 1.05 m = 1.40 x 10⁻⁷ J

Finally, to find the total work done, we subtract the work done at the initial distance from the work done at the final distance:

W total = W final - W initial = 1.40 x 10⁻⁷ J - 1.21 x 10⁻⁷ J = 1.90 x 10⁻⁸ J.

Therefore, the electric field force does 1.90 x 10⁻⁸ J of work to move the two point charges from 0.30 m to 1.05 m apart.

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Answer:

[tex](17 \times6) + (11 \times 4)[/tex]

[tex]102 + 44 = 146[/tex]

the answer to your problem is y = 4/7x

Answer:

Deborah is 27 years old and Syria is 31 years old.

Step-by-step explanation:

Let's say Deborah's age is x and Syria's age is y.

From the given information, we know that:

x + y = 58 (the sum of their ages is 58)

Also, the difference between their ages is 4, which means:

y - x = 4

We can use these two equations to find the values of x and y.

First, we'll solve for y:

y = x + 4

Substituting this value of y into the first equation:

x + (x + 4) = 58

Expanding the left-hand side:

2x + 4 = 58

Subtracting 4 from both sides:

2x = 54

Dividing both sides by 2:

x = 27

So Deborah is 27 years old and Syria is y = 27 + 4 = 31 years old.

The fraction of all the animals that are not dogs and cats is 9/40 or 0.225.

The fractions of the dog and cat populations are summed and subtracted from 1, which represents the total population of the animals.

The fractions can also be expressed as decimals using division operations.  They can also be depicted in percentages by multiplying the division quotients by 100.

Fractions of Animal Populations in the Shelter:

Dogs = 2/5

Cats = 3/8

2/5 + 3/8 = 31/40

The lowest common factor of 5 and 8 is 40.

Other pets = x

x = (1 - 31/40)

x = 9/40

Thus, since 2/5 of the animal populations are dogs and 3/8 are cats, the rest of the pets, including birds, hamsters, and lizards can be represented fractionally as 9/40.

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Mean = 31.333

Median = 30

Mode = 41

Range = 18

Mean

Determining the average can be done by adding up all the data values, then dividing by the amount of data.

Mean = [tex]\frac{30+25+23+41+39+27+41+24+32}{9}[/tex]

         = [tex]\frac{282}{9}[/tex]

         = 31.333

Median

The median is the middle value of a set of data after being sorted from smallest to largest data, and vice versa. If data has a median, then the median is single.

because the questions are not sequential, they must be sorted first from the smallest to the largest.

23 24 25 27 30 32 39 41 41

The median from this question is 30

Mode

The mode is the data that occurs most frequently.

23 24 25 27 30 32 39 41 41

And the mode of this problem is 41 because it appears two times

Range

the range is the difference between the highest value of a data set and the lowest value of a data set.

23 24 25 27 30 32 39 41 41

the range from 23 to 41 is 18

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Answer:

72

Step-by-step explanation:

circumference = 20

arc = 4

4/20 =1/5

a circle = 360°

1/5 * 360 = 72

After reading quote from chapters 1-3 of Treasure Island.

"He cleared the hilt of his cutlass and loosened the blade in the sheath; and all the time we were waiting there he kept swallowing as if he felt what we used to call a lump in the throat."

Based on the actions described in the quote, Black Dog is feeling fear. Hence option B is correct answer.

Clearing the hilt of his cutlass and loosening the blade in the sheath are actions typically taken when one is preparing for potential danger or conflict.

Therefore, based on the above, the fact that Black Dog is swallowing as if he has a lump in his throat is another indication that he is feeling fear or nervousness.

Correct option is: B

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Answer:

1/12

Step-by-step explanation:

Total Number of pieces of paper = 24

Total Number of pieces of paper with an odd number on it= 24/2 = 12

Total Number of pieces of paper with Number 19 = 1

Probability of a student on blue team having the Number 19 would be = Number of paper pieces with Number 19/Total number of pieces of paper with an odd number = 1/12

We take only the pieces of paper with an odd number on it as we already know the student is in the blue team so they had to have an odd number.

Answer:

89/100

Step-by-step explanation:

there were only 11 people without treatment so minus 11 from 100 which is 89

then just make it a probability by writing it out of 100.

hope this helps

The polynomial function is f(x) = x² - 49 if the leading coefficient is 1 or f(x) = -x² - 49 if the leading coefficient is -1.

Polynomials are expressions of the form,

a₀ + a₁ x + a₂ x² + ................. + aₙ₋₁ xⁿ⁻1 + aₙ xⁿ

where a's are the coefficients, x is the variable and n is the number of terms.

Given that, the degree of the function is 2.

So the function is quadratic.

It is of the form f(x) = ax² + bx + c.

The y - intercept is (0,-49).

Substituting the point,

(a × 0²) + (b × 0) + c = -49

c = -49

Function is f(x) = ax² + bx - 49.

We have, the x - intercepts are ( -7,0), (7,0).

Substituting the points, we get two equations.

a (-7)² + b (-7) - 49 = 0 and a (7)² + b (7) - 49 = 0

49a - 7b - 49 = 0 and 49a + 7b - 49 = 0

Subtracting 49a - 7b - 49 = 0 from 49a + 7b - 49 = 0, we get,

14b = 0

b = 0

So the function is of the form f(x) = ax² - 49.

Given that,  Assume the leading coefficient is 1 or -1.

Function is either f(x) = x² - 49 or f(x) = -x² - 49

Hence the required function is f(x) = x² - 49 or f(x) = -x² - 49.

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let's firstly convert the mixed fractions to improper fractions.

[tex]\stackrel{mixed}{7\frac{5}{6}}\implies \cfrac{7\cdot 6+5}{6}\implies \stackrel{improper}{\cfrac{47}{6}} ~\hfill \stackrel{mixed}{5\frac{1}{3}} \implies \cfrac{5\cdot 3+1}{3} \implies \stackrel{improper}{\cfrac{16}{3}} \\\\\\ \stackrel{mixed}{1\frac{1}{9}}\implies \cfrac{1\cdot 9+1}{9}\implies \stackrel{improper}{\cfrac{10}{9}} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\left( \cfrac{47}{6}-\cfrac{16}{3} \right)+\cfrac{10}{9}\implies \cfrac{47}{6}-\cfrac{16}{3}+\cfrac{10}{9}\implies \cfrac{(3)47~~ - ~~(6)16~~ + ~~(2)10}{\underset{\textit{using this LCD}}{18}} \\\\\\ \cfrac{141-96+20}{18}\implies \cfrac{65}{18}\implies {\Large \begin{array}{llll} 3\frac{11}{18} \end{array}}[/tex]

Answer:

x=1

Step-by-step explanation:

up we have the answer of the question

Answer:

the number is 4.

Step-by-step explanation:

The number is 4 because 3 × 4 = 12 and 4^2 = 16.

16 - 12 = 4

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