PLS DO NUMBER 10 WILL MARK BRAINLY AND ALSO GIVE AN ADDITIONAL 100 PTS IF CORRECT PLS HURRY. THANK YOU

Answer: 20/12 and 4/12

Step-by-step explanation:

Answer:

Step-by-step explanation:

Inferential statistics uses methods that take a result from a sample, extend it to a population, and measure the reliability of the result.

Inferential records use measurements from the pattern of topics within the experiment to examine the remedy agencies and make generalizations about the larger populace of subjects. there are numerous varieties of inferential facts and every one is suitable for a particular research design and sample characteristics.

Inferential statistics is a department of statistics that makes the usage of diverse analytical equipment to attract inferences approximately the population information from pattern facts. aside from inferential information, descriptive records form another branch of information.

Statistical inference is the procedure of the usage of facts evaluation to deduce houses of an underlying distribution of opportunity. Inferential statistical evaluation infers homes of a populace, for instance through testing hypotheses and deriving estimates.

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Complete Question:

_______ statistics uses methods that take a result from a sample, extend it to a population, and measure the reliability of the result.

The given system of equations have infinitely many solutions.

The given system of equations are:

5y = 15x - 40  or  y = 3x - 8 ....... (1)

y = 3x - 8 ........... (2)

We know that if the slopes of 2 system of equations are same but their y - intercept are different then it has no solution, if the slopes are same and the y-intercept are also same then it has infinitely many solutions, and if the slopes are different then it has a unique solution.

When we observe the given system of equations and compare it with the general form y = mx + c, we can conclude that both the equations have same slope, that is, 3 and same y-intercept, that is, -8.

Hence, the given system of equations have infinitely many solutions.

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The amount of wrapping paper, in square centimeters, needed to completely cover the cylinder is SA = 2π(1.2)² + 1.2π(3.8).

The lateral surface area of a cylinder is also called the curved surface area of the cylinder.

Suppose that Radius of the considered cylinder = 'r' units

Height of the considered cylinder = 'h' units

Then, the lateral surface area of that cylinder is:

[tex]S_L = 2\pi r h \: \rm unit^2[/tex]

We are given that a cylinder with the diameter labeled 2.4 centimeters and the height labeled 3.8 centimeters.

Therefore, we have;

Diameter = 2.4 cm

Height = 3.8 cm

Radius = 1.2 cm

So, The total area is;

SA = 2π(1.2)² + 1.2π(3.8).

The amount of wrapping paper,needed to completely cover the cylinder

SA = 2π(1.2)² + 1.2π(3.8).

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Answer: The answer you're looking for is A.

Step-by-step explanation: 7th-grade math exam used the answer from the person above and they were right!

An isosceles trapezium is a trapezium in which the non-parallel sides are equal in measure

There are various formulae for isosceles trapezoid area:

Given are the bases a,b, and height h: A = (a + b) * h / 2

Given the bases a,b, and c, determine h using the Pythagorean Theorem (h is the square root of c2 – (a-b)2/4) and A = (a + b) * h / 2

Given are the bases a,b, and angle: h = tan() * (a-b)2 / 4, then A = (a + b) * h / 2.

Given: base a, leg c, and angle If h is defined as c * sin() and b is defined as a – 2 * c * cos(), then A = (a + b) * h / 2

An isosceles trapezoid (also known as an isosceles trapezium by the British; Bronshtein and Semendyayev 1997, p. 174) is a trapezoid with identical base angles on both the left and right sides.

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Answer:The quadratic equation here in terms of the variable c is given by: Now on subtracting 15 from both the sides of the equation we have: Hence, on comparing the equation with: we have: Now on taking the square root on both the sides of the equation we have: Advertisement. cheyennebaesa41. T^2 - 49 =0. t^2=49.

Step-by-step explanation:

Answer:

  1.00

Step-by-step explanation:

You want to know the price of a cookie when 3 pizza slices and 2 cookies cost 6.50, while 1 pizza slice and 1 cookie costs 2.50.

We can write equations for the costs as ...

  3p +2c = 6.50

  p + c = 2.50

Multiplying the second equation by 3 and subtracting the first equation eliminates the variable p.

  3(p +c) -(3p +2c) = 3(2.50) -(6.50)

  3p +3c -3p -2c = 7.50 -6.50 . . . . . . . eliminate parentheses

  c = 1.00 . . . . . . . . . simplify

The cost of a cookie is 1.00.

Answer:

Step-by-step explanation:

Total length = addition of the lengths of the two pipes

We know, 1cm= 10 millimeters

                Hence, 82 centimeters = 82*10 = 820 millimeters.

Total length therefore = 820 millimeters + 260 millimeters = 1080 millimeters.

Because the x and y coordinates are squared before being added together, the formula will always result in a positive number.

In math, what is a distance?

The length of the segment of the line that connects the supplied two points determines the distance between them.

                     The shortest segment of a line connecting a point to a line will have a length equal to the distance between them.

Why does the distance formula work?

The Pythagorean Theorem, which states that a side plus a side plus a side equals a side equals a side equals a side equals a side equals a side equals a side equals a side equals a side, is where the Distance Formula actually originates (known as the legs of a right triangle).

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Positive distances are those measured in the direction of the incident ray, and negative distances are those recorded in the opposite direction.

An object's distance is determined by its total velocity, regardless of direction.

Regardless of where it started or ended, distance is the amount of space that an object has covered.

We can determine an object's true size by knowing how far it is from us.

Always situate the subject to the left of the lens.

In the mirror, there is a pole from which the distances are calculated.

Distances that are measured in the direction of the incident ray are positive, whereas distances that are measured in the opposite direction are negative.

Therefore, positive distances are those measured in the direction of the incident ray, and negative distances are those recorded in the opposite direction.

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Therefore the polynomial (x – 2)(x^2 + 1) – x(x – 3) can be written in the form: ax^3 + bx^2 + cx + d = x^3 - 2x^2 + 4x - 6 where a = 1, b = -2, c = 4, and d = -2

The polynomial (x – 2)(x^2 + 1) – x(x – 3) can be written as:

ax^3 + bx^2 + cx + d = (x - 2)(x^2 + 1) - x(x - 3)

To find the values of a, b, c, and d, we need to multiply out the binomials and combine like terms. Using the distributive property, we get:

ax^3 + bx^2 + cx + d = x^3 - 2x^2 + x^2 + x - x^2 + 3x - 2

Now we can combine like terms:

ax^3 + bx^2 + cx + d = x^3 - 2x^2 + 4x - 2

So we can see that:

a = 1, b = -2, c = 4, and d = -2

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The slope of y = -1 is m =  zero.

Now, According to the question:

What is slope and example?

Whenever the equation of a line is written in the form y = mx + b, it is called the slope-intercept form of the equation. The m is the slope of the line. And b is the b in the point that is the y-intercept (0, b). For example, for the equation y = 3x – 7, the slope is 3, and the y-intercept is (0, −7).

So,

We define slope as :

[tex]m = \frac{y_1-y_0}{x_1-x_0}[/tex]

In a constant function as given :

y = -1

We have,

[tex]y_1=y_0=-1[/tex]

And then,

[tex]m = \frac{-1-(-1)}{x_1-x_0}[/tex]

[tex]m = \frac{0}{x_1-x_0}[/tex]

m = 0

Hence, The slope of y = -1 is zero.

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The radius of the sphere is, 3 inch.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

A sphere has a volume of 36 π in³.

We know that;

⇒ Volume of sphere = 4/3 πr³

Here, A sphere has a volume of 36 π in³.

Hence, We get;

⇒ 4/3 πr³ = 36π

⇒ 4/3 r³ = 36

⇒ r³ = 36 × 3 / 4

⇒ r³ = 27

⇒ r = ∛ 27

⇒ r = 3 inch

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Answer:

s = 17

Step-by-step explanation:

Solve for s

2(s − 9) = 16

Divide each side by 2

2/2(s − 9) = 16/2

s-9 = 8

Add 9 to each side

s-9+9 = 8+9

s = 17

Answer: s=17

Step-by-step explanation:

2(s-9)=16

2s -18=16

     +18 +18

2s=34

/2    /2

s= 17

Using the distributive property you need to get 's' by itself so you can solve it.

D). The survey is both reliable and valid which means the survey is consistent.

Reliability is the consistency of the results, so if the survey and observation scores are close together, then the survey is reliable. In this case, the scores on the survey and the observations were very close for all three participants, suggesting that the survey is reliable.

Validity is the accuracy of the results, so if the survey and observation scores accurately reflect the true quality of the mother-child relationship, then the survey is valid.

In this case, the scores for all three participants were within the range of 10-50, which suggests that the scores from the survey accurately reflect the true quality of the mother-child relationship and are therefore valid.

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Answer:

x = -4

y = 4

Step-by-step explanation:

2x + 5y = 12       Q1

4x + 3y = -4       Q2

Q1 * 2

4x + 10y = 24

-   Q2

7y = 28

y = 4

put y back into equation

2x + 5y = 12

2x + 5(4) = 12

2x + 20 = 12

2x = -8

x = -4

The most realistic sampling method that represents the actual drillings, comparisons, and scientific examinations of several core samples within the same geographical area is Cluster Sampling technique.

In cluster sampling, the total population is divided into homogeneous groups known as clusters and a simple random sample of the groups is selected. The elements present in each cluster are then sampled like a sample. In other words we can say each cluster is represent a tiny population set. We have, geologists have an interest in the structure and the history of the earth. In this study, the whole population is divided into groups based on retrieving a core sample, estimating the ages of the various layers, and examining the composition. After that a timeline can be built of the entire area for drilling the core sample. So, each set work as small population i.e., clusters. The sampling technique which is used here to represent the actual drillings, comparisons, and scientific examinations of several core samples within the same geographical area is known as cluster sampling.

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The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes.

The domain of a function is defined as the set of inputs accepted by the function. A value for x is said to be in the domain of a function f if it successfully allows the production of a single value y using another value for x.

Consider the function y = f(x), which has the independent variable x and the dependent variable y.

A value for x is said to be in the domain of a function f if it successfully allows the production of a single value y using another value for x.

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The size of each group would be half as big. That means there would be half.

The correct answer choice is option A

3 1/5 ÷ 4/5

= 16/5 ÷ 4/5

multiply by the reciprocal of 4/5

= 16/5 × 5/4

= 4

If 3 1/5 ÷ 8/5

multiply by the reciprocal of 8/5

= 16/5 × 5/8

= 2

Therefore, the model would be half if you divide by 8/5 instead of 4/5

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If the mean number of people who attended three basketball games was 8,242, that means the sum of the number of people who attended all three games is equal to 8,242 multiplied by the number of games, which is 3.

What does math mean?

The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. The term "average" is frequently used to describe this measure of central tendency.

Total attendance = mean attendance * number of games

Total attendance = 8,242 * 3

Total attendance = 24,726

So the total attendance at the three games is 24,726 people.

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From the graph, the following information is seen.

Team A speed is 4.17 meters per second.

Team B speed is 6.25 meters per second.

Team C speed is 8.3 meters per second.

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

From the graph,

Pick two coordinates from each line.

Team A is the blue line.

(6, 50) and (10, 75)

Rate of change.

= (75 - 50) / (10 - 6)

= 25/6

= 4.17

Team B is the red line.

(6, 25) and (10, 50)

Rate of change.

= (50 - 25) / (10 - 6)

= 25/4

= 6.25

Team C is the green line.

(6, 25) and (12, 75)

Rate of change.

= (75 - 25) / (12 - 6)

= 50/6

= 8.3

Thus,

Team A runs about 4.17 meters per second.

Team B runs about 6.25 meters per second.

Team C runs about 8.3 meters per second.

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The solution of the inequality is given by x < -1

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), larger than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

The stages of resolving inequities are as follows:

The inequality is described as :

-2(3x - 5) > 16

⇒ -6x + 10 > 16

⇒ -6x > 6

⇒ x < -1

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There are 34560 ways can the 11 animals be placed in a row of 11 cages, such that all of the animals of each type are in adjacent cages.

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n

As per the question, the happy valley kennel has 4 chickens, 2 dogs, and 5 cats.

Now calculate the number of ways in which the animals are placed in a row in the adjacent cages is:

=4!*2!*5!*3!=4*3*2*1*2*15*4*3*2*1*3*2*1=34560 ways

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Scatter plot is best for analyzing relationship between two variables.

What is scatter ?

In statistics and data visualization, a scatter plot (also called a scatter graph or scatter chart) is a type of graph used to display the relationship between two sets of data. It is a two-dimensional plot that uses Cartesian coordinates to display values for typically two variables for a set of data.

A scatter plot is a graph that uses dots to represent values for two numeric variables. The position of each dot on the horizontal and vertical axis indicates values for an individual data point. Scatter plots are a useful tool for visualizing the relationship between two variables, such as how changes in one variable may be associated with changes in another variable.

Scatter plots can show the following types of relationships:

Positive correlation: as one variable increases, the other variable increases.

Negative correlation: as one variable increases, the other variable decreases.

No correlation: there is no relationship between the two variables.

Non-linear relationship: the relationship between the two variables is not linear.

Scatter plot is best for analyzing relationship between two variables.

Complete Question: Which of the following types of graph is the best kind to use for analyzing how two variables are related?

Line Graphs, Bar Graphs, Pie Charts, Scatter Plots

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The number 59 in the equation y = 59 + 6x represents the y-intercept of the equation.

The y-intercept is the point at which the line of best fit (in this case, the line representing the relationship between time spent on homework and quiz scores) crosses the y-axis. In other words, it is the value of y when x = 0.

In this equation, when x = 0, y = 59, which means that even if a student spends 0 hours on homework that week, their expected quiz score would be 59. This value could represent a baseline score or an average score for students who spend no time on homework.

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The equivalent expression is 5b-0.9b.

What is expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. Unknown variables, integers, and arithmetic operators are the components of an algebraic expression. There are no symbols for equality or inequality in it.

As per the given information in the question,

Discount on the price of bread = 18%

Total loaves of bread by Shanaya = 5

Let the price of bread is b.

Then, the expression for the statement will be,

=>5 (b - 0.18b)

The equivalent expression for the statement will be,

=>5b - 0.9b

Hence the equivalent expression is 5b-0.9b.

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It takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

Let x be the time it takes Cindy to do the job alone, in hours. Then, it takes Bill x + 2 hours to do the job alone.

During the first 2 hours, when they worked together, they did 2/x + 2/(x + 2) = 1/2 of the job.

Bill finished the job in 1 hour after Cindy left, so he did 1/x + 2 = 1/3 of the job during that hour.

We can now set up a system of two equations to solve for x:

2/x + 2/(x + 2) = 1/2 (1)

1/x + 2 = 1/3 (2)

From equation (1), we can find x + 2:

2/x + 2/(x + 2) = 1/2

2x + 4 = x(x + 2)

2x + 4 = x^2 + 2x

x^2 - 2x + 4 = 0

(x - 4)(x - 1) = 0

x = 4 or x = 1

Since x represents the time it takes Cindy to do the job, we reject x = 4 and keep x = 1.

Substituting x = 1 into equation (2), we find:

1/1 + 2 = 1/3

3 = 3

So, it takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

Therefore, It takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

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It takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

Let x be the time it takes Cindy to do the job alone, in hours. Then, it takes Bill x + 2 hours to do the job alone.

During the first 2 hours, when they worked together, they did 2/x + 2/(x + 2) = 1/2 of the job.

Bill finished the job in 1 hour after Cindy left, so he did 1/x + 2 = 1/3 of the job during that hour.

We can now set up a system of two equations to solve for x:

2/x + 2/(x + 2) = 1/2 (1)

1/x + 2 = 1/3 (2)

From equation (1), we can find x + 2:

2/x + 2/(x + 2) = 1/2

2x + 4 = x(x + 2)

2x + 4 = x² + 2x

x² - 2x + 4 = 0

(x - 4)(x - 1) = 0

x = 4 or x = 1

Since x represents the time it takes Cindy to do the job, we reject x = 4 and keep x = 1.

Substituting x = 1 into equation (2), we find:

1/1 + 2 = 1/3

3 = 3

So, it takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

Therefore, It takes Cindy 1 hour to do the job alone and Bill 3 hours to do the job alone.

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Answer:

(- 4, - 5 )

Step-by-step explanation:

a vertical move down means subtract 10 from the y- coordinate

a horizontal move left means subtract 8 from the x- coordinate

(4, 5 ) → (4 - 8, 5 - 10 ) → (- 4, - 5 ) ← end point