what mistake did he make help!!

Answer:

61

Step-by-step explanation:

using the rule to find the fifth term from the fourth term 29

5th term = 2 × 29 + 3 = 58 + 3 = 61

Reciprocal of 0.0002 is:

Reciprocal of c/d:

Reciprocal of 1 2/3 is:

Use identity x² - y² = (x - y)(x + y) to solve the following questions.

Evaluate  173² - 127²:

Evaluate (8.70)²- (8.60)²:

Evaluate 1003²- 9​:

Answer:

Below

Step-by-step explanation:

From the image below you can see that

90 F  + 60 L   = 160 miles

and given F + L = 2 hours       re arrange to  F = 2 - L  

                                      and substitute this "F" into the first equation

90 (2-L )  + 60 L = 160           Solve for L

180  - 90 L     + 60 L     = 160

180 - 30 L = 160

- 30 L = -20

L = 2/3 hr       then   F = 1  1/3  hr       ( because they add to '2' )

Answer:

20000*4*5/100=4000

Step-by-step explanation:

Hope this helps!

The monthly take-home pay is ¢ 68094. The solution has been obtained by using arithmetic operations.

What are arithmetic operations?

The term "arithmetic operations" refers to four basic mathematical operations that can be used to express any real number. Addition, subtraction, multiplication, and division are the four operations.

We are given that take-home pay is calculated as 20 hours per week at $11.66 per hour with 27% deducted for taxes and insurance.

Considering 365 days in a year, there are 52 weeks in year and 4 weeks in a month.

In a week there are 20 hours

So, in 4 weeks, there will be 80 hours

Take - home pay before deductions = 80 * $11.66 = $932.8

Take - home pay after deductions = $932.8 - 27% of $932.8 = $680.94

This is equal to ¢ 68094.

Hence, the monthly take-home pay is ¢ 68094.

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When we are given the value of the explanatory variable, we can use the least-squares regression line to predict the value of the outcome variable.

The least square method is the process of finding the best-fitting curve or line of best fit for a set of data points by reducing the sum of the squares of the offsets (residual part) of the points from the curve. During the process of finding the relation between two variables, the trend of outcomes is estimated quantitatively. This process is termed as regression analysis. The method of curve fitting is an approach to regression analysis. This method of fitting equations that approximates the curves to give raw data is the least squares.

It is quite obvious that the fitting of curves for a particular data set is not always unique. Thus, it is required to find a curve having a minimal deviation from all the measured data points. This is known as the best-fitting curve and is found by using the least-squares method.

When we are given the value of the explanatory variable, we can use the least-squares regression line to predict the value of the outcome variable.

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Answer:32768/7

Step-by-step explanation:

double every term

Note that the complete steps of the Flow Chart Proof is given as follows:

1) RS = TS, QR = UT [Given]

2) QR + RS = QR + RS [Reflexive Property of Equality]

3) QR + RS = RS + UT  [Substitution Property of Equality]

4) QR + RS = QS, TS + UT = US [Segment Addition Postulate]

5) QS = US [Substitution Property of Equality]

6) Line Segment QS is congruent to  Line segment US [Definition of Congruent Segments].

A flow chart proof is a type of proof that uses symbols and diagrams to show the logical flow of a proof.

It is a visual way of representing a mathematical argument that can be helpful for organizing and presenting complex ideas in a clear and concise manner.

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Answer:

you are to use patagorious theory

Answer:

Step-by-step explanation:

To find the number of calories and grams of fiber in a 2/3-cup serving, we can simply multiply the values for a 1/2-cup serving by the appropriate factor. A 2/3-cup serving is 1.5 times larger than a 1/2-cup serving, so we multiply the calorie and fiber content by 1.5.

210 calories * 1.5 = 315 calories

9 grams of fiber * 1.5 = 13.5 grams of fiber

So a 2/3-cup serving would contain 315 calories and 13.5 grams of fiber.

The two possible locations of the fourth vertex are (4, -1) and (-6, 9). The solution has been obtained by using the properties of parallelogram.

What is a parallelogram?

A parallelogram has two sets of parallel sides, making it a quadrilateral. A parallelogram's opposing sides and angles are both the same length.

Finding the vector that depicts the shift from one of the given vertices to another is necessary in order to determine the fourth vertex of a parallelogram.

The third given vertex must then be added to the vector.

We know that the opposite sides of a parallelogram are parallel and equal in length, we may determine the coordinates of the other two vertices by adding the same displacement vector to two of the given vertices.

The difference between the first and second provided vertices i.e.

(1 - (-4), -2 - 3), is one potential displacement vector which is (5, -5).

On adding this vector to the third vertex, we get the fourth vertex as (4,-1).

Similarly, the difference between the second and third vertices i.e.

(-1 - 1, 4 - (-2))  is another potential displacement vector which is (-2, 6).

On adding this vector to the third vertex, we get the fourth vertex as

(-6, 9).

Hence, the two possible locations of the fourth vertex are (4, -1) and

(-6, 9).

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Answer:

D

Step-by-step explanation:

Count total dots => 30

Amount of dots under x>=5 => 21

21/30 = 7/10 = 70%

On solving the provided question we can say that here trigonometry  y = Asin(Bx + C)+D

Trigonometry is a branch of mathematics that studies the relationship between triangle side lengths and angles. From the use of geometry in astronomical study, the area first appeared in the Hellenistic era, around the third century BC. Exact methods is a branch of mathematics that deals with specific trigonometric functions and how they can be used in calculations. In trigonometry, there are six popular trigonometric functions. Their names and acronyms are sine, cosine, tangent, cotangent, secant, and cosecant (csc). Trigonometry is the study of the properties of triangles, particularly right triangles. However, the study of geometry is the characteristics of all geometric figures.

(x)=sin(x) consider y = Asin(Bx + C)+D adjusts the amplitude of the function (how high or low it is).

if you want to

B determines how many full wavelengths will occur during a certain time period, and C determines the phase shift (left/right on the axis) (positive values will shift left)

The vertical shift, or D, is up or down. For example, a +3 would move the entire function up 3 units.

In your situation, the amplitude is 4 since you wish to stretch vertically.

Additionally, you want to move it right three units. C = -3 (always the opposite of the direction you wish to go) (always the opposite of the direction you want to go)

g(x) = 4sin(x - 3)

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Step-by-step explanation:

-1 1/2 = -3/2

1/4 × (x - 2/5) = -3/2

let's multiply both sides by 4 to remove the first fraction on the left side :

x - 2/5 = -12/2

x = -12/2 + 2/5 = -6 + 2/5

-6 = -6 × 5/5 = -30/5

so,

x = -30/5 + 2/5 = -28/5 = -5 3/5 = -5.6

please pick any form you need for your result.

The average thickness of the metal sheet is 0.0423 inches.

In statistics, the mean is a measure of central tendency of a set of data. It is also referred to as the arithmetic mean and is calculated by adding up all the values in the data set and dividing by the total number of values.

Mean = (sum of all values) / (number of values)

For example, suppose we have the following set of data: 5, 7, 9, 11, 13. To find the mean, we add up all the values and divide by the total number of values, which is 5 in this case:

Mean = (5 + 7 + 9 + 11 + 13) / 5

Mean = 9

Therefore, the mean of this data set is 9.

The mean is a commonly used measure of central tendency because it takes into account all the values in the data set and is sensitive to changes in the data. However, it can be affected by outliers or extreme values in the data set, which can skew the results.

To find the average thickness of the sheet, we need to add the five measurements together and then divide by 5 (the number of measurements):

Average thickness = (0.0401 + 0.0417 + 0.0462 + 0.0407 + 0.0428) / 5

Average thickness = 0.0423 in

Therefore, the average thickness of the metal sheet is 0.0423 inches.

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Answer:

sampling distribution

Step-by-step explanation:

:)

The area of the shaded region is given as follows:

As = 324(2π - 1) in².

The area of a circle of radius r is given by π multiplied by the radius squared, as follows:

A = πr².

For this problem, the circle has a radius of [tex]18\sqrt{2}[/tex], as the radius is the diagonal of the square, hence the area is given as follows:

A = π x [tex](18\sqrt{2})²[/tex]

A = 648π in².

The area of a square of side length s is given by the square of the side length, hence the area of the square is given as follows:

A = 18²

A = 324 in².

Hence the area of the shaded region is given as follows:

As = 648π - 324

As = 324(2π - 1) in².

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The quadratic equation y2 + 7y - 2 = 0 can be solved using the quadratic formula, which states that the solutions for x in the equation ax^2 + bx + c = 0 are given by:

x = (-b ± √(b^2 - 4ac)) / 2a

We can apply the quadratic formula to this equation by letting a = 1, b = 7, and c = -2:

y = (-7 ± √(7^2 - 4 * 1 * -2)) / 2 * 1

y = (-7 ± √(49 + 8)) / 2

y = (-7 ± √57) / 2

So the solutions to the equation y2 + 7y - 2 = 0 are:

y = (-7 + √57) / 2

y = (-7 - √57) / 2

The solutions to the equation are y = (-7 + √57) / 2 and y = (-7 - √57) / 2.

Answer:

See below

Step-by-step explanation:

You should just use a graphing calculator or an online graphing site to do this

If you were to do this manually on  a graph sheet, here is how you proceed

Given line is

y = -x - 4

We need to find 2 points to plot a straight line

Choose x = 0 ==> y = - 0 - 4 = -4

So (0, - 4) is one point

Choose another value for x. x = -4 is a good point
At x = - 4, y = -(-4) - 4 = 0

So (-4, 0) is another point.

Plot these two points on the graph and draw a straight line through those points

The attached graph shows this all

The statements about the number -27 that are true are given as follows:

Rational numbers are numbers that can be represented by fractions, such as numbers that have no decimal parts, or numbers in which the decimal parts are terminating or repeating.

Irrational numbers are numbers that cannot be represented by fractions, being non-terminating and non-repeating decimals, such as non-exact square roots.

Integer numbers are numbers that have no decimal part, hence -27 is an example of an integer number, which are also rational numbers.

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Answer: Exact Form:

11/72

Decimal Form:

0.1527 repeating

Step-by-step explanation:

6 x 12 and 1 x 11

The label covers approximately 4,800 square centimetres of the wheel of cheese.

What is the lateral surface area of a cylinder?

The lateral surface area of a cylinder can be found using the formula:

L = 2πrh

where L is the lateral surface area, r is the radius of the cylinder, and h is the height of the cylinder.

In this case, we need to find the lateral surface area of the wheel of cheese, so we can use the given radius of 30 centimetres and height of 20 centimeters to calculate:

L = 2 x (22/7) x 30 x 20

L = 4,800 square centimetres

This is the total surface area of the cylindrical-shaped wheel of cheese. However, the label does not cover the circular top and bottom, so we need to subtract their areas from the total surface area to find the area covered by the label.

The area of a circle can be found using the formula:

A = πr²

where A is the area of the circle, and r is the radius of the circle.

In this case, we have two circles (top and bottom), so the total area of the circles that are not covered by the label is:

2 x (22/7) x 30²

= 56,400/7 square centimeters

Subtracting this from the total surface area, we get:

4,800 - 56,400/7

= 33,600/7 square centimeters

= 4,800 square centimeters (rounded to the nearest whole number)

Therefore, the label covers approximately 4,800 square centimeters of the wheel of cheese.

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Answer:c

Step-by-step explanation:

The 55th term of the arithmetic sequence is 131.

An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is aₙ=a+(n-1)d.

Given that, the nth term of the sequence is aₙ= -1+3(n−1)

Here, the 55th term in the sequence is

a₅₅= -1+3(55-1)

= -1+132

= 131

Therefore, the 55th term is 131.

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X = -3 and its substitution into the first equation results in 3y = 9, which can be written as y = 3. As a result, the system of equations' solution's y-coordinate is 6.

Equation is a mathematical and physical statement that describes physical phenomena and the relationship between various physical quantities.

It usually consists of a simple variable that presents the physical quantity, followed by a personal variable that may be a personal variable that is focused on the energy.

The system of equations has a solution, and its y-coordinate is 6. This is obtained by solving for x and then putting the specified y-value (2/3) into the equation -x+3y=9. In particular, -x+3(2/3) = 9 becomes -x = 3 when -x+3(2/3) = 9.

Therefore, The system of equations has a solution, and its y-coordinate is 6.

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Answer:

The area of the sign is 706.5 cm^2.

Step-by-step explanation:

We know,

The formula of area of a circle,

A = πr^26

Here A is area and r is radius.

Here we have radius is 15 cm, so we can put the values in the above equation and find the area,

A = π * 15^2

A = 3.14 * 225

A = 706.5

The area of the sign is 706.5 cm^2.

The outliers in a set of data is the maximum value 41.6.

The mean is the average value which can be calculated by dividing the sum of observations by the number of observations

Mean = Sum of observations/the number of observations

Median represents the middle value of the given data when arranged in a particular order.

Given that Minimum: 1

Q1: 5

Median: 19.45

Q3: 31.5

Max: 41.6

Range = Maximum - minimum

Range =41.6 -1

= 40.6

Since Mean not including the outlier.

The outliers in a set of data is 41.6.

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Using equations, they sold 165 tickets before both accounts had the same amount of money.

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

Finding the values of the variables that result in the equality is the first step in solving an equation with variables. The variables that must be included in the equation are also known as the unknowns.

Given that, Jaelyn had $150 in the school account and sold tickets for the fundraiser at a cost of $8 per ticket.

and Erik had $480 in his school account and sold tickets for the fundraiser at a cost of $6 per ticket.

Let they sold x tickets and they have the amount in their account is y.

After sold tickets, Jaelyn accounts had the amount is

y = 150 + 8x

After sold tickets, Erik accounts had the amount is

y = 480 + 6x

the amount in their account is same, so we compare both equation to find x

150 + 8x = 480 + 6x

arranging like terms in same side

8x - 6x = 480 - 150

2x = 330

divide both sides by 2 we get,

x = 330/2

x = 165

So, they sold 165 tickets before both accounts had the same amount of money.

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Answer: x = -1

Step-by-step explanation:

simplify 2(x + 7) 2 / 3 = 8 to 4x + 28 = 24 and then solve it from there