I don't know how to solve this. Please help me.

Saeng's third race is between race 2 and race 3.

Ascending order: Arranging the numbers from lowest number to highest number.

Descending order: Arranging the numbers from highest number to lowest number.

The times for 5 races are given in the table  

  Race       timings

      1              -1.2

      2             [tex]+1\frac{1}{10}=1.1[/tex]    

      3              [tex]-1\frac{1}{4}=-1.25[/tex]

      4              - 1.4

      5               [tex]+1\frac{1}{2}=1.5[/tex]

Arranging the timings in ascending order we get,

-1.4,-1.25,-1.2,1.1,1.5

Hence third race is -1.2 it lies between race 2 and race 3.

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The proof for UX || VW is shown below.

According to the midpoint theorem, "The line segment in a triangle joining the midpoint of any two of the triangle's sides is said to be parallel to its third side and is also half the length of the third side."

Given:

As, TUX and TVW are similar.

So, the ratio of their corresponding sides are equal.

So, TU/ TV = UX/ VW = TX / TW = 1/2  {TU/ TV = 1/2}

By using mid point Theorem

UX = 1/2 VW

Then, UX || VW.

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Answer:

40 days

Step-by-step explanation:

We know

A certain insect eats 1/8 gram of food each day.

How many days would the insect take 5 grams of the food?

We take

5 divided by 1/8 = 40 days

So, it would take the insect 40 days to eat 5 grams of the food.

Answer:40 days

Step-by-step explanation: first, how many days would it take for the insect to eat 1 gram of food? it would take 8 days so if it wants to eat 5 grams of food 8x5=40 so it would take 40 days for the insect to eat the food

Answer:

x = 11/90 = 0.122

Step-by-step explanation:

7[tex]\frac{1}{2}[/tex]x - [tex]\frac{1}{4}[/tex] = [tex]\frac{2}{3}[/tex]

15/2x - 1/4 = 2/3

90/12x - 3/12 = 8/12

90/12x = 8/12 + 3/12

90/12x = 11/12

x = (11/12)(12/90) = 132/1080 = 11/90

The value of equation is -3.

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

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

Given;

T-5/t-3=t-3/t+3+1/t-3

Now

T-5/t-3=t-3/t+4/t-3

-5t=-2t+9

-3t=9

t=-3

Therefore, the answer of the equation will be -3.

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Answer:

Below

Step-by-step explanation:

1)   The domain can be ANY value of 'x' except 'x' that cause the denominator to = 0    and it cannot be 'x' values that cause the denominator to be negative    as this is not allowed

so   x cannot be 5 or greater

       (-∞ , 5)   is the domain in interval notation

    or you could just write   x < 5      

2) you cannot have a negative square root so the domain would be all 'a'

       that the numerator would be 0 or greater (you CAN have a square root of '0' in the numerator)

             7-5a ≥ 0

               7 ≥ 5a

               7/5 ≥ a     or flipping it around    a ≤ 7/5

3) 15x^3y^2 + 10x^2 y - 20 x^2 y^3

you can factor out a   x^2    5  and  y from all three terms to get :

   5 x^2 y ( 3xy + 2 - 4 y^2 )       there ya have it !

The value 0.00073 feet per millisecond. in scientific notation is 7. 3 × 10⁴ feet per millisecond

Index forms are described as mathematical methods of writing or representing numbers that are too large or two small in more convenient forms.

They are written in the forms of exponents of numbers or variables,

There are other names for index forms which are scientific notation and standard forms.

From the information given, we have that;

The seahorse moves 0.5 miles per hour, or 0.00073 feet per millisecond

In converting 0.00073 feet per millisecond into index forms

count the number of zeros to the first significant number

7. 3 × 10⁴ feet per millisecond

Hence, the value is 7. 3 × 10⁴ feet per millisecond

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The correct answer is option D: Chen read for less time because an hour a day for 7 days is equal to 210 minutes.

To determine the correct answer, we need to use the unitary method. This method involves converting the units of measurement into a common unit and then comparing them.

In this case, we need to convert hours into minutes to compare the reading time of Sierra and Chen.

An hour is equal to 60 minutes. Therefore, 1 hour a day for 7 days is equal to

=> 60 minutes * 7 days = 420 minutes.

However, we need to divide this number by 2 because Chen only read for half an hour a day. Hence, Chen read for 210 minutes

=> (420 minutes / 2).

Now that we have both the reading times in minutes, we can compare them. Sierra read for 220 minutes while Chen read for 210 minutes. As 220 > 210, it is clear that Sierra read for more time.

In conclusion, option D is the correct answer as Chen read for less time because an hour a day for 7 days is equal to 210 minutes. The unitary method is useful in comparing measurements with different units and it provides us with accurate results.

Complete Question:

Sierra read for 220 minutes in 1week. Chen read for an hour a day for 7 days. Which explanation is correct?

A. Sierra read for more time because 220 is greater than

B. Sierra read for less time because minutes are less than hours.

C. They read for the same amount of time because 1 week is equal to 7 days.

D. Chen read for less time because an hour a day for 7 days is equal to 210 minutes.

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The value changes from 5/4 to 3/8 , then the percent of change from 5/4 to 3/8 is a 60% increase. So, the value change from 5/4 to 3/8 increases in percentage.

To determine whether the percent of change is an increase or a decrease, you need to calculate the difference between the old value and the new value as a percentage of the old value.

The old value is 5/4 and the new value is 3/8. To calculate the difference, you subtract the new value from the old value: 5/4 - 3/8 = 5/4 - 3/8 = 15/32.

Next, you need to express the difference as a percentage of the old value. To do this, you divide the difference by the old value and multiply by 100%. That gives you (15/32) / (5/4) * 100% = 60%.

Since the result is a positive percentage, it means that the percent of change is an increase. So, the percent of change from 5/4 to 3/8 is a 60% increase.

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The possible set of dimensions for the container

radius = 8 inches, height = 21 inches:

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

Given:

A) radius = 21 inches, height = 21 inches:

The inequality h > 0.3r² is satisfied (21 > 0.3 * 21^2).

The height must be no more than 15 inches greater than the radius

=21 - 21 <= 15), which is satisfied.

The area of the base must be at least 36pi square inches

= πr² ≥ 36pi, which is not satisfied ( πr² < 36π).

So, option A is not a possible set of dimensions.

B) radius = 8 inches, height = 21 inches:

The inequality  h > 0.3r² is satisfied (21 > 0.3 x  8²).

So, The height must be no more than 15 inches greater than the radius (21 - 8 ≤ 15), which is satisfied.

The area of the base must be at least 36π square inches

= π(8²) ≥ 36π

So, option B is a possible set of dimensions.

C) radius = 7 inches, height = 23 inches:

The inequality h > 0.3r^2 is satisfied (23 > 0.3 x 7^2).

The height must be no more than 15 inches greater than the radius

= (23 - 7 ≤ 15), which is satisfied.

and, Area of the base

= (π (7)² < 36pi) not satisficed.

So, option C is not a possible set of dimensions.

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In this particular study, Selection bias, Response bias, non response bias and Self-selection bias may exist.

There are several biases that may exist in the study:

1. Selection bias: By only calling people whose names were randomly sampled from the phone book, the study may not accurately represent the population of the state as a whole. Mobile phones and unlisted numbers, which may represent a significant portion of the population, are not included in phone books and therefore not included in the sample.

2. Response bias: The study only includes people who answered the phone when the senator's office called. This means that the sample only represents people who were available and willing to participate in the study. People who were not available or unwilling to participate may have different opinions, which would introduce a response bias.

3. Nonresponse bias: People who did not answer the phone when the senator's office called may have different opinions than those who answered. This nonresponse bias can result in an overestimation or underestimation of the true population values.

4. Self-selection bias: By only calling people who answered the phone, the study may only represent those who are interested in politics or are more likely to participate in political surveys. This self-selection bias can result in an overestimation or underestimation of the true population values.

These biases can lead to inaccurate results and conclusions. To reduce these biases, it's important to use a representative sample of the population and to make sure that the sample is selected in a way that minimizes bias

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One element within an experiment that allows you to increase the level of certainty in your results and account for random events is the use of a control group.

Level of certainty refers to the degree of confidence or assurance that one has in the accuracy of a particular result, decision, or conclusion. In scientific research, the level of certainty is often expressed as a probability or as a confidence interval, which provides a range of values that are expected to contain the true value with a certain degree of confidence. A higher level of certainty indicates a greater level of confidence that the result is correct, while a lower level of certainty indicates more uncertainty or ambiguity. Factors that can affect the level of certainty in an experiment or measurement include the quality of the data, the size of the sample, the accuracy of the methods used, and the presence of random or systematic errors.

By having a control group, you can compare the results of the experiment against a baseline and isolate any changes caused by the independent variable. Additionally, using a large sample size and repeating the experiment multiple times can also help increase the level of certainty and account for random events.

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The table in the question which the values from the graph of the parabola is inputed is presented as follows;

Name [tex]{}[/tex]                     Key Feature             Name           Key Feature
x-intercepts[tex]{}[/tex]             (-1, 0), (3, 0)                Increasing      (-∞, 1)      

y-intercept[tex]{}[/tex]               (0, 3)                          Decreasing     (4, ∞)

Vertex[tex]{}[/tex]                      (1, 4)                            Positive           (-1, 3)

Axis of symmetry[tex]{}[/tex]     x = 1                           Negative        (-∞, 1), (3, ∞)

Domain[tex]{}[/tex]                    (-∞, ∞)                         Range            (-∞, 4]

The graph of a parabola is a u (or n) shaped curve obtained by the intersection of a cone and a plane which is parallel to the slant of the cone.

The x-intercepts are the point the graph intersects the x-axis, where the y-value is zero, y = 0. From the graph, the x-intercepts are;(-1, 0), and (3, 0)

The y-intercept is the point at which the graph intersects the y-axis, which is the point the x-value is 0, (x = 0). The graph indicates that the y-intercept is (0, 3)

The vertex of the parabolic graph is the highest (or lowest) point on the graph, therefore, from the graph in the question, the vertex point is; (1, 4)

The axis of symmetry is the line that divides the graph into two mirror halves, which is the line passing through the vertex and parallel to the y-axis. The axis of symmetry is therefore the line; x = 1

The domain is the set of the possible input values of the graph of the function, which is the set of the possinble x-values.

The graph indicates that the x-values can decrease and increase to -∞ and ∞. The domain is therefore; (-∞, ∞).

The region where the graph is increasing is fro x = -∞ to just before x = 1. The interval where the graph is increasing is therefore; (-∞, 1)

Similarly, the interval the graph is decreasing is; (4, ∞)

The graph is positive in the region above the x-axis. The interval over which the graph is positive is therefore between the x-intercepts, which is; (-1, 3)

The graph is negative in the region below the x-axis. The interval in which the graph is negative are; (-∞, 1), and (3, ∞)

The range is the set of possible output of the graph, therefore, the range is the set of the possible y-values, which is; (-∞, 4]

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Answer: - negative

Step-by-step explanation:

The number 41 has a negative sign and it is greater than 39.

Answer:

50288419716939937510.... and so on.

Pi is a never ending number, so it goes on and on forever.

Step-by-step explanation:

Hope it helps! =D

The denominators for 1/4 and 7/10 are B) 20 and E) 40.

1/4 , the denominator is 4.

7/10, the denominator is 10.

We are looking for in the multiple choice, which number can be divided into 4 and 10. Namely the numbers 20 and 40.

To prove:

20, divided by 4 is 5 and divided by 10 is 2.

40, divided by 4 is 10 and divided by 10 is 4.

Then the correct answer is 20 and 40.

As we know that in fractions are divided into two parts, namely the quantifier (located above the dividing line) and the denominator (located below the dividing line.

The quantifier is the number or value that will be divided by the number or denominator value. Meanwhile, the denominator is the number or value that is the number's divisor or the quantifier value.

Your question is incomplete but most probably your full question was:

Select all the common denominators for

1/4 and 7/10.

A 10

B. 20

C. 24

D. 32

E. 40

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The linear equation is 12y = 5x. Then the number of bagels when you buy for $50 will be 120 bagels.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

A shop sells bagels for $5 per dozen.

Let 'x' be the number of bagels and 'y' be the total cost. Then the equation is given as,

y / x = 5 / 12

12y = 5x

The number of bagels when you buy for $50 will be given as,

12(50) = 5x

600 = 5x

5x = 600

x = 120

The number of bagels when you buy for $50 will be 120 bagels.

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Answer:

[tex] \sf \: x = 6[/tex]

Step-by-step explanation:

Now we have to,

→ find the required value of x.

The equation is,

→ 4x + 10 = 34

Then the value of x will be,

→ 4x + 10 = 34

→ 4x = 34 - 10

→ 4x = 24

→ x = 24 ÷ 4

→ [ x = 6 ]

Hence, the value of x is 6.

Equating both equations, Nayati and Tatiana will have the same amount of savings after 21 weeks.

Equations are mathematical statements that show that there is equality between two or more mathematical expressions.

Equations are depicted using the equation symbol (=).

                       Nayati   Tatiana

Savings            $240     $450

Weekly savings $40       $30

Nayati total savings = 40w + 240

Tatiana total savings = 30w + 450

To determine the number of weeks when their savings will be equal, the two equations will be equated as follows:

40w + 240 = 30w - 450

10w = 210

w = 21

= 21 weeks

Thus, we expect Nayati and Tatiana to embark on their road trip after 21 weeks.

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Pedro ha reunido 25.000.000$ antes de pensar en prestar con el banco. Al finalizar los 10 años, Carlos pagará 37.800.000$.

Esto significa que tendrá que pagar 35.000.000$ en total al banco, los cuales se dividirían en cuotas mensuales de 315.000$ durante los 10 años.

Es importante tener en cuenta que con el paso del tiempo, los precios de los materiales de construcción pueden variar, lo que significa que el costo total de la casa puede aumentar o disminuir. Por lo tanto, es importante contar con un presupuesto realista para la construcción. Además, se recomienda controlar el progreso de la construcción para asegurarse de que los costos no se salgan de control.

Pedro has collected $25,000,000 before thinking about lending with the bank. At the end of the 10 years, Carlos will pay $37,800,000. This means that he will have to pay $35,000,000 in total to the bank, which would be divided into monthly installments of $315,000 over the 10 years.

It is important to keep in mind that over time, the prices of construction materials may change, which means that the total cost of the house may increase or decrease. Therefore, it is important to have a realistic budget for construction. In addition, it is recommended to monitor the progress of the construction to ensure that costs do not get out of control.

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When travelling at 70 mph over a road with a sinusoidal surface, an automobile crosses its peak 1.9556 times every second.

The relation between rectangle side angles and the lengths is examined in the mathematics branch known as trigonometry. The application of geometries in astronomical study gave rise to the county's first appearance in the Hellenistic era, roughly in the third centuries BC. Exact approaches mathematics concentrate on certain right triangle and how they could be applied to calculations. In trigonometry, there are six well-known trigonometric expressions. They are known by their various names and acronyms: sine, cosine, parallel, cotangent, cotangent, and cosecant (csc). The features of all geometric forms are studied in geometry.

given

first convert 40 miles per hour (mph) into feet per second (fps):

1 mile is equal to 5280 feet, and a speed of 40 miles per second is equal to 3600/405280, or 58.6667 feet per second.

Second, determine how many times per second the car will pass a bump:

The vehicle crosses a sinusoidal road with a period of 30 feet, where

P = 30 feet frequency

speed/P = 30/58.667 = 1.9556 times per second.

When travelling at 70 mph over a road with a sinusoidal surface, an automobile crosses its peak 1.9556 times every second.

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The image showing the locus points equidistant from X, Y, and Z is B. See the attached image.

If the distances between a point and each object in the set are equal, the point is said to be equidistant from the set.

When a point is equidistant from two other points, it is at the same distance from both of them. The distance between two points may be computed using the distance formula and the coordinates of the two points.

In geometry, a locus is a set of points that satisfy a specific condition or circumstance for a form or figure. The locus is pluralized as loci. The region is the location of the locus. The term locus comes from the word location.

Thus, the point that is equidistant from X, Y, and Z is B.

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The value of the missing angles x , y, and z are 63⁰ , 63⁰  and 72⁰ respectively.

The value of the missing angles is calculated by applying the following mathematical method.

x + 85⁰ + 32⁰ = 180⁰ ( sum of angles in a triangle )

x = 180 - 117 = 63⁰

y = x = 63 ⁰ ( opposite angles )

z + y + 45⁰  = 180⁰ ( sum of angles in a triangle )

z + 63 ⁰  + 45⁰ = 180

z = 72⁰

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An equation, in slope-intercept form, to represent the total cost, y, for x toppings on a jumbo pizza is y = 1.35 x + 15.

As per the data given:

A local restaurant charges $15 for a jumbo size cheese pizza.

Each of the additional topping costs $1.35.

Here we have to determine an equation, in the slope-intercept form, to represent the total cost, y, for x toppings on a jumbo pizza.

Considering y as the cost of pizza and x be the amount of topping added.

Cost of a pizza with toppings

y = 1.35 x + 15

The equation for the slope-intercept form is y = mx + c

m will be the slope of the equation.

Here, the slope of the equation is 1.35

The Y-intercept is equivalent to the price of the base pizza i.e. 15

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For the triangle ABC the interior angles measures ∠A = 48°, ∠B = 82°, and ∠C = 50°.

What are triangles?

Triangles are a particular sort of polygon in geometry that have three sides and three vertices. Three straight sides make up the two-dimensional figure shown here. An example of a 3-sided polygon is a triangle. The total of a triangle's three angles equals 180 degrees. One plane completely encloses the triangle.

According to the angles of a triangle theorem, the sum of angles of a triangle is 180°.

The measure of ∠A = 4x.

The measure of ∠B = 7x - 2.

The measure of ∠C = 5x - 10.

The equation is -

∠A + ∠B + ∠C = 180°

Substitute the values into the equation -

4x + 7x - 2 + 5x - 10 = 180

Collect the like terms -

4x + 7x + 5x = 180 + 2 + 10

16x = 192

x = 192/16

x = 12°

So, the measure of ∠A = 4(12) = 48°.

The measure of ∠B = 7(12) - 2 = 82°

The measure of ∠B = 5(12) - 10 = 50°

The interior angles of the triangle are 48°, 82° and 50°.

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The solution is, 53.5 sec was her time, in seconds, for the third lap.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

Given

Number of times Lucia ran the race=n=3

Slowest time= x_1=56.3 sec

Fastest Time= x_2=52.2 sec

Average time=54.0 sec

Since, we know the average time and two of the three race times, we can use the average formula to calculate the third race’s time.

Let  

x_3=the third race^' s time

So,

Average=(Sum of values)/(Number of values)

Average =  (x_1+ x_2+ x_3)/n

Putting the values

54.0=  (56.3+ 52.2+ x_3)/3

Multiplying 3 with 54.0 and adding 56.3 and 52.2

162= 56.3+52.2+ x_3

162= 108.5+ x_3

x_(3 )=162-108.5

x_(3 )=53.5 sec

Hence, The solution is, 53.5 sec was her time, in seconds, for the third lap.

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The measures of both pairs of opposite sides are equal in length using the properties of rotations.

What is rotation?

In mathematics, a rotation is a transformation that spins a shape around an immovable object.

We are given that M is the midpoint of the diagonals.  

Since, M is the midpoint of the diagonals, so, VM = MQ and TM = MN.

Since T and N are equidistant from M, and the measure of ∠TMN = 180°, So, r(180°, M)(T) = N

Similarly, r(180°, M)(V) = Q  

We can rotate every point on TV in this same way.

So,  r(180°, M)(TV) = QN

Similarly, r(180°, M)(TQ) = VN  

Since, the rotations are rigid motions and they preserve distance, so, TV=QN and TQ=VN.

Hence, the measures of both pairs of opposite sides are equal in length.

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In the question, the figure is missing which is attached below

Answer: In math End Behavior describes a graph at its end values. To explain, it is the high values and what the graph would like like as x values get very high and how it would look for the y values. Also, in terms of graph looks, this could be an exponential or logarithmic curve as values get very high. Think about End Behavior as the graphical patterns when the values get high. Hope this helps! Please give this a brainiest if this was helpful as I am one away from the next rank.

Step-by-step explanation:

Answer:I hope this helps

Step-by-step explanation:

The end behavior of a function f describes the behavior of the graph of the function at the "ends" of the x-axis. In other words, the end behavior of a function describes the trend of the graph if we look to the right end of the x-axis (as x approaches +∞ ) and to the left end of the x-axis (as x approaches −∞ ).

End behavior refers to the appearance of a graph as it is followed indefinitely in either horizontal direction. Leading coefficient POSITIVE: both "ends" are UP. Leading coefficient NEGATIVE: both "ends" are DOWN. Leading coefficient POSITIVE: left end is DOWN and right end is UP.

If the degree is odd and the lead coefficient is positive, then the right end of the graph will point up and the left end will point down. If the degree is odd and the lead coefficient is negative, then the right end of the graph will point down and the left end will point up