im having trouble in algebra. im falling because of it. can you please help?

Answer:

260x = 170

x=170/260 * 100% = 65.4 %

Step-by-step explanation:

let x be the charge for an oil change, and let the tax on x be 7% so that the actual charge is 1.07x. let y be the number of containers of oil that are needed, and $2 the price per container. then 2y is the price of the oil itself. the cov(x,y) is 5.6.

The covariance of 1.07x and 2y is 11.984

Covariance refers to the way two variables shift together. It is a measurement that evaluates how close two variables are to one another. It examines whether they change in the same direction (positive covariance) or in the opposite direction (negative covariance)

.Calculating Covariance:

Given that Cov(X,Y) = 5.6

we need to find Cov(1.07X,2Y)Hence,

Cov(1.07X,2Y) = 2 * 1.07 * Cov(X,Y) = 2.2996 * 5.6 = 11.984

Therefore, the covariance of 1.07x and 2y is 11.984.

Hence option (a) is the correct answer.

To know more about covariance:

https://brainly.com/question/14300312

#SPJ11

The value of dfbetween in the analysis of variances is 2. Thus option D is correct option.

According to the statement

we have given that the df total = 29 and df within = 27. And we have to find the value of the df between.

So, For this purpose, we know that the

Analysis of variance (ANOVA) is an analysis tool used in statistics that splits an observed aggregate variability found inside a data set into two parts.

So, Df between values are the values between the value of dftotal and dfwithin.

Here df total = 29 and df within = 27

So, df between = df total - df within

Substitute the values in it then

df between = df total - df within

df between = 29 - 27

df between = 2.

So, The value of dfbetween in the analysis of variances is 2. Thus option D is correct option.

Learn more about analysis of variances here

https://brainly.com/question/15062874

#SPJ4

Answer:

PLEASE MARK ME AS BRAINLIEST

Thus the area of shaded region is 301.5 cm^2.

"The collection of all points equidistant from a fixed point in a plane is called a circle".

For the given situation,

The radius of the inner circle be r = 8 cm and

the radius of the outer circle be R = 16 cm

The formula to find area of the circle, \(A=\pi r^{2}\)

Area of inner circle, \(A_{1} =\pi r^{2}\)

⇒\(3.14\) × \(8\) × \(8\)

⇒\(200.96\)

≈\(201\)

Area of outer circle, \(A_{2} =\pi R^{2}\)

⇒\(3.14\) × \(16\) × \(16\)

⇒\(803.84\)

≈\(804\)

The shaded region replicates the semicircle. So,

Area of the shaded region \(=\frac{A_{2} }{2} -\frac{A_{1} }{2}\)

⇒\(\frac{804}{2} -\frac{201}{2}\)

⇒\(402-100.5\)

⇒\(301.5 cm^{2}\)

Hence we can conclude that the area of shaded region is \(301.5 cm^{2}\)

Learn more about circles here

https://brainly.com/question/1297097

#SPJ2

Answer:   281

Step-by-step explanation:

The answer is A. The normal distribution in its standardized form has a mean of 0 and a standard deviation of 1. This means that the distribution is centered around 0, and the spread of the data is determined by the standard deviation of 1. This is useful in statistical analysis because it allows us to compare data from different distributions on a standardized scale.

The normal distribution is a continuous probability distribution that is often used in statistical analysis. It is characterized by a bell-shaped curve and is symmetrical around its mean. In its standardized form, the normal distribution has been transformed to have a mean of 0 and a standard deviation of 1. This transformation is achieved by subtracting the mean of the distribution from each data point and dividing by the standard deviation. This standardization allows us to compare data from different normal distributions on a standardized scale.

The normal distribution has many properties that make it useful in statistical analysis. It is often used as a model for many real-world phenomena, such as the distribution of human height, IQ scores, and many others. The normal distribution is also useful because it is well understood and has many mathematical properties that make it easy to work with.

To know more about probability visit:

https://brainly.com/question/11234923

#SPJ11

Percy earns a greater hourly wage of $7.50 at the coffee cart.

Percy earns a greater hourly wage of $7.50 at the coffee cart compared to the wage at the library, which is $7.00. This difference in wages is the reason why Percy earns more per hour at the coffee cart.

When it is stated that the wage at the coffee cart is higher, it means that employees working at the coffee cart are paid a higher rate per hour compared to those working at the library. In this case, the coffee cart pays $7.50 per hour, while the library pays $7.00 per hour.

As a result, when Percy works at the coffee cart, they are compensated at a higher rate for each hour worked, which results in a higher wage. By earning $0.50 more per hour, Percy's total earnings for the same amount of time worked would be greater at the coffee cart than at the library.

To know more about hourly wage,

https://brainly.com/question/6531760

#SPJ11

Answer:

If spongebob recieved 4 candies for every 2 that Patrick Got then bob got 16 and patrick got 8.

Step-by-step explanation:

A triangular prism and its dimensions are shown in the diagram. What is the lateral surface area of this triangular prism in square centimeters? F 192 cm2 G 128 cm2 H 152 cm2 J 144 cm

Answer:

G

The lateral surface area of the triangular prism is 128 square centimeters. The correct answer would be an option (G) 128 cm².

A triangular prism is a three-sided prism consisting of a triangular base, a translated duplicate, and three faces connecting similar sides.

As per the question, we have dimension are:

side legth of base  = 6 cm, 5 cm, and 5 cm

height = 8 cm

Lateral surface area = (a+b+c)h

Substitute the values and we get

Lateral surface area = (6+5+5)8

Lateral surface area = 16 × 8

Lateral surface area = 128 cm².

Hence, the lateral surface area of the triangular prism is 128 square centimeters.

To learn more about triangular prism click here:

brainly.com/question/3666603

#SPJ6

The missing figure has been attached below.

The location where the paths cross is (5, 12)

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

y = -x² + 6x + 7

y = x+ 7

Next, we plot the graph of the functions y = -x² + 6x + 7 and y = x+ 7

This is represented on the attached graph

In this case, the point of intersection of the equations represent the solution to the system

From the graph, the lines intersect at (5, 12)

Hence, the location is (5, 12)

Read more about system of equations at

https://brainly.com/question/13729904

#SPJ1

The value of the sample proportion of people from Vermont who exercised for at least 30 minutes a day, 3 days a week is 0.653.

We have,
Vermont had 65.3% of respondents who said yes to exercising for at least 30 minutes a day, 3 days a week.

To find the sample proportion, you can convert the percentage to a decimal by dividing the percentage by 100.

Step 1:

Convert the percentage to a decimal.
65.3 / 100 = 0.653

Thus,
The value of the sample proportion of people from Vermont who exercised for at least 30 minutes a day, 3 days a week is 0.653.

Learn more about sample proportion here:

https://brainly.com/question/29912751

#SPJ11

Answer:

A, 94

Step-by-step explanation:

4. A since that is the tallest of the bars

5. 51 + 9 + 34 = 94 people

Answer:

0.54, 5/12, 39%, 0.3, 4.25, 4%

Step-by-step explanation:

Answer:

$1.70 per wing

Step-by-step explanation:

To find the cost per wing, take the total cost and divide by the number of wings

18.70/11

$1.70 per wing

in the formula, =1+(2-3)+5/6-6^2,  The final result of the formula is -35.1667.

In the formula =1+(2-3)+5/6-6^2, the order of operations dictates that the exponentiation operator (^) is evaluated first, followed by multiplication and division from left to right, and then addition and subtraction from left to right.

So, access will evaluate 6^2 first, which equals 36. Then, it will evaluate the division 5/6, which equals 0.8333 (rounded to four decimal places).

Next, it will evaluate the subtraction (2-3), which equals -1. Then, it will evaluate the addition (1+(-1)), which equals 0. Finally, it will evaluate the multiplication (-6 * 6), which equals -36.

Putting it all together, we get:

=1 + (2-3) + 5/6 - 6^2

= 1 + (-1) + 0.8333 - 36

= -35.1667

Therefore, the final result of the formula is -35.1667.

Learn more about formula here

https://brainly.com/question/1603500

#SPJ11

In a fast-food management program, there are 15 qualified applicants for 8 trainee positions. We are supposed to calculate the number of different groups of trainees that can be selected. For this, we can use the formula for combination. In mathematics, a combination is a way of selecting items from a collection, such that the order of selection doesn't matter.

It is represented as n Cr, where n is the total number of items and r is the number of items to be selected. In this problem, we have to select 8 trainees from a total of 15 qualified applicants. Hence, the solution is as follows: Now, we can use the formula for combination, which is as follows:

n Cr = n!/(r!(n-r)!)  where n is the total number of items, and r is the number of items to be selected. In this case, we have 15 items to choose from, and we want to select 8 of them. Hence, we get:  15C8 = 15!/(8!(15-8)!) 15C8 = (15 × 14 × 13 × 12 × 11 × 10 × 9 × 8!)/(8! × 7 × 6 × 5 × 4 × 3 × 2 × 1)15C8 = 6435  Therefore, there are 6,435 different groups of trainees that can be selected from the 15 qualified applicants for 8 trainee positions in a fast-food management program.

To know more about combination visit:

https://brainly.com/question/31586670

#SPJ11

The percentage increase in the winner's check for the U.S. Open Golf Championship from 1895 to 2019 was approximately 4.33% per year. If the winner's prize continues to increase at the same rate, it would be around $11,655,984.98 in 2044.

To calculate the percentage increase per year in the winner's check, we need to find the annual growth rate. We can use the formula for compound interest to do this. The initial prize in 1895 was $150, and the final prize in 2019 was $2.25 million (or $2,250,000).

First, we find the total number of years between 1895 and 2019: 2019 - 1895 = 124 years.

Next, we calculate the percentage increase using the compound interest formula:

Percentage Increase = ((Final Amount / Initial Amount)^(1 / Number of Years) - 1) * 100

Percentage Increase = ((2,250,000 / 150)^(1 / 124) - 1) * 100 ≈ 4.33%

Now, to find the prize money in 2044, we need to use the compound interest formula again. The number of years from 2019 to 2044 is 25 years.

Final Amount = Initial Amount * (1 + Percentage Increase)^Number of Years

Final Amount = 2,250,000 * (1 + 0.0433)^25 ≈ 11,655,984.98

Thus, if the winner's prize continues to increase at the same rate, it will be approximately $11,655,984.98 in 2044.

Learn more about compounding interest here:

https://brainly.com/question/22621039

#SPJ11

To complete the diagram we recall that Alberta and Ontario are providences of Canada but the rest are not.

Answer:

The measure of arc BC is 720 times the measure of angle BAC.

Given that AC is the diameter of the circle and AB is a chord with a length of 16 units, we need to find BC (the length of the other chord) and mBC (the measure of angle BAC).

To find BC, we can use the property of chords in a circle. If two chords intersect within a circle, the products of their segments are equal. In this case, since AB = BC = 16 units, the product of their segments will be:

AB * BC = AC * CE

16 * BC = 2 * r * CE (AC is the diameter, so its length is twice the radius)

Since the area of the circle is given as 289 square units, we can find the radius (r) using the formula for the area of a circle:

Area = π * r^2

289 = π * r^2

r^2 = 289 / π

r = √(289 / π)

Now, we can substitute the known values into the equation for the product of the segments:

16 * BC = 2 * √(289 / π) * CEBC = (√(289 / π) * CE) / 8

To find mBC, we can use the properties of angles in a circle. The angle subtended by an arc at the center of a circle is double the angle subtended by the same arc at any point on the circumference. Since AC is a diameter, angle BAC is a right angle. Therefore, mBC will be half the measure of the arc BC.

mBC = 0.5 * m(arc BC)

To find the measure of the arc BC, we need to find its length. The length of an arc is determined by the ratio of the arc angle to the total angle of the circle (360 degrees). Since mBC is half the arc angle, we can write:

arc BC = (mBC / 0.5) * 360

arc BC = 720 * mBC

Therefore, the length of the arc BC equals 720 times the length of the angle BAC.

for such more question on measure of arc

https://brainly.com/question/25716982

#SPJ8

Evaluated the integral along the curve c:  ∫c (y^2 - 2xy) dx = ∫c (y^2 - 2xy) dx.

To evaluate the integral ∫ c 2 x y 2 z d x 2 x 2 y z d y ( x 2 y 2 − 2 z ) d z using Stokes' theorem, we need to follow these steps:

Step 1: Determine the curl of the vector field.

First, let's find the curl of the vector field F = (2xy^2z, x^2yz, x^2y^2 - 2z).

The curl of F can be calculated using the formula:

curl F = (∂Fz/∂y - ∂Fy/∂z, ∂Fx/∂z - ∂Fz/∂x, ∂Fy/∂x - ∂Fx/∂y).

By substituting the components of F, we get:

curl F = (2xz - 0, 0 - yz, y^2 - 2xy).

Therefore, the curl of F is (2xz, -yz, y^2 - 2xy).

Step 2: Determine the surface bounded by the curve.

The curve c is given by x. This means that the curve lies in the xy-plane.

To determine the surface bounded by the curve, we need to find the normal vector to the curve. Since the curve lies in the xy-plane, the normal vector is k (the z-axis).

Step 3: Calculate the dot product between the curl of F and the normal vector.

The dot product between the curl of F and the normal vector is given by:

(2xz, -yz, y^2 - 2xy) · k = y^2 - 2xy.

Step 4: Evaluate the double integral over the region.

Now, we need to evaluate the double integral of y^2 - 2xy over the region D, which is the projection of the curve c onto the xy-plane.

Since the curve is given by x, the projection of the curve onto the xy-plane is simply the curve itself.

Therefore, the double integral becomes:

∫∫D (y^2 - 2xy) dA = ∫c (y^2 - 2xy) dx.

Step 5: Evaluate the line integral.

Using the line integral, we can evaluate the integral along the curve c:

∫c (y^2 - 2xy) dx = ∫c (y^2 - 2xy) dx.

And this is the final step in evaluating the given integral using Stokes' theorem.

Learn more about Stokes' theorem https://brainly.com/question/28381095

#SPJ11

Answer:

2. -8x - 6

3. 4.5x + 10 (I think, not quite sure)

4. 0.25 - 5x (I think, also not quite sure)

5. -8x - 5y + 5.5

Step-by-step explanation:

2. Distribute the -2 to all terms except -1.

-2(4x + 2.5) - 1

-8x - 5 -1

-8x - 6

5. Combine 6x and -14x (6 - 14 = -8).

6x - 5y - 14x + 5.5

-8x - 5y + 5.5

There would be the alcohol content from 2 drinks remaining in the body after 2 hours.

It is commonly estimated that the body can metabolize about one standard drink per hour.

Multiply the rate of metabolism (1 drink per hour) by the number of hours (2 hours).

1 drink/hour × 2 hours = 2 drinks

Subtract the number of drinks metabolized (2 drinks) from the initial number of drinks consumed (4 drinks).

The alcohol content remaining in the body:

4 drinks - 2 drinks = 2 drinks

Therefore, after 2 hours, there would be the alcohol content from 2 drinks remaining in the body.

To learn more about the rate click here :

https://brainly.com/question/12786410

#SPJ6

The gender that would have the highest probability of finding jeans to fit their height is males.

Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true

From the information, in the sample of 20 people, there are 8 females and 12 males who are looking for jeans that fits them.

Probability for males = 12 / 20

= 0.6

Probability for females will be:

= 8 / 20

= 0.4

Learn more about probability on:

brainly.com/question/24756209

#SPJ1

In a sample of 20 people, there are 8 females and 12 males who are looking for jeans that fits them. which gender would have the highest probability of finding jeans to fit their height?

Attached is a two-way frequency table, to help Hugo organize the results.

A two-way frequency table is a table used to organize and display the relationship between two categorical variables. It is constructed by counting the number of occurrences of each combination of categories and presenting the results in a table format.

1. Identify the categorical variables and list their possible categories.

cat, no cat, dog, no dog

2. Count the number of observations for each combination of categories.

cat = 17

no dog = 20

no cat no dog = 7

3. Organize the counts in a table with the categories of one variable as rows and the categories of the other variable as columns.

          | dog | no dog | total

cat      |        |              |   17  |

no cat |        |     7       |        |

total    |        |     20    |   41  |

4. Fill in the table with the counts of the observed combinations of categories.

cat but no dog = 20 - 7 = 13

both cat and dog = 17 -13 = 4

total no cat = 41 - 17 = 24

total dog = 41 - 20 = 21

dog but no cat = 24 - 7 = 17

          | dog | no dog | total

cat      |   4   |      13     |   17  |

no cat |   17  |     7       |   24  |

total    |   21  |     20    |   41  |

Learn more about two-way frequency table here: https://brainly.com/question/16148316

#SPJ4

\(x^2\) = -16: This equation has no real solutions, because there is no real number whose square is negative. We can see this by recognizing that x^2 is always non-negative for any real number x, so it is impossible for x^2 to equal -16.

x(x+2) = 0: This equation has two solutions, namely x=0 and x=-2. We can see this by using the zero product property, which states that if the product of two factors is zero, then at least one of the factors must be zero. In this case, we have x(x+2) = 0, so either x=0 or x+2=0, which gives x=-2.

(x-3)(x-3) = 0: This equation has one solution, namely x=3. We can see this by using the zero product property again, which tells us that if the product of two factors is zero, then at least one of the factors must be zero. In this case, we have (x-3)(x-3) = 0, so either x-3=0, which gives x=3.

Thus, since we have the factor (x-3) twice, we only count it once as a solution.

For more details regarding quadratic equation, visit:

https://brainly.com/question/30098550

#SPJ1

Answer:A≈254.47m²

Step-by-step explanation:

Step-by-step explanation:

A=pi(r^

\(\pi {r}^{2} \\ \\ diameter \: is \: 18 \: meters \\ to \: find \: the \: radius \\ divide \: diameter \: by \: 2 \\ since \: the \: radius \: is \: \\ half \: the \: diameter18 \div 2 = 9 \: meters \\ \\ \pi {r}^{2} \\ \pi( {9}^{2} ) \\ \pi(81) \\ \\ area = 81\pi\)

Answer:

x= 2b-a

Step-by-step explanation:

Answer:

x=2b-a

Step-by-step explanation:

The first step is to subtract 2a from both sides to get the equation 2x=4b-2a

The next step is to divide by 2 so you can get x by itself which turns the equation to x=2b-a

Answer:

C. m4/n2    :))))

Answer:

gmj5

Step-by-step explanation:

t5y6