The equation of the trend line is y = (-1/2)x + 14.
What is trend line?The overall pattern or trend in a collection of data is represented by a trend line, sometimes referred to as a regression line. In statistics, it is frequently used to illustrate the connection between two variables, one of which is the independent variable and the other the dependant variable. Regression analysis, which determines the line that most accurately fits the data points based on their connection, is used to compute the trend line. In order to anticipate or estimate future values of the dependant variable based on the independent variable, the equation of the trend line may then be utilised.
The slope of the line can be found using the formula:
slope = (change in y) / (change in x)
slope = (8 - 12) / (12 - 4)
slope = -4 / 8
slope = -1/2
Using the point slope form:
y - y1 = m(x - x1)
y - 12 = (-1/2)(x - 4)
y = (-1/2)x + 14
Hence, the equation of the trend line is y = (-1/2)x + 14.
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Oliver practices the piano 448 minutes in 4 weeks. At what rate did she practice, in
minutes per day?
Answer:
16
Step-by-step explanation:
First you figure out how many days are in 4 weeks which is 28. Then you do 448 divided by 28 which equals 16. There's your answer.
What is the value of
∠FDE given the following image?
The value of ∠FDE is 36°
Define the term angles?An angle is a geometric figure formed by two rays, or lines that extend infinitely in opposite directions, that share a common endpoint called the vertex. The measure of an angle is determined by the amount of rotation between the two rays.
Here given a right angle ∠CDE = 90°
So, we can say that,
∠CDF + ∠FDE = ∠CDE
(2x)° + (x+9)° = 90°
(3x + 9)° = 90°
Simplify it, x = 27°
So, the value of ∠FDE = (x+9)° = (27+9)° = 36°
Therefore, the value of ∠FDE is 36°
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The angle FDE is 36°. The required answer for the given question is option (A). 36°.
What is the value of <FDE?Trigonometry angles are the angles provided by the trigonometric function ratios. Trigonometry is the study of the connection between angles and triangle sides. Angle values vary from 0 to 360 degrees.
An angle is a shape in geometry made by two rays or lines that stretch indefinitely in opposite directions and have a common endpoint known as the vertex. The quantity of rotation among the two rays determines the size of an angle.
From the given figure,
∠CDF + ∠FDE = 90
Thus,
(2x)+(x+9) = 90
3x + 9 = 90
3x = 81
x = 27
Then we will have that the angle FDE is:
∠FDE = (27) + 9
∠FDE = 36
The angle of FDE is 36°
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Grace plans on going to the amusement park this Friday. It costs $10.00 to enter the park, and then $2.50 for every ride that Grace goes on. What will be the total cost if Grace goes on 7 rides?
Answer: 27.50
Step-by-step explanation: 2.50 X 7 =17.50 + 10 = 27.50
The annual rainfall for Austin, Texas, and San Antonio, Texas, in each of the years from 2002 to 2011 are shown in the tables. Use the data for 9-it.' Annual Rainfall for Austin, Texas (in.) 36.00 21.41 52.27 22.33 34.70 46.95 16.07 31.38 37.76 19,68 Annual Rainfall for San Antonio, Texas (in.) 46.27 28,45 45.32 16.54 21.34 47.25 13.76 30.69 37.39 1759 9. Use a spreadsheet to find the mean for the two cities' annual rainfalls. In which city does it rain more in a year, on average?
In San Antonio, Texas it rain more in a year, on average when compared to Austin, Texas according to the mean of both cities.
Data of Austin, Texas is as follows:
36.00, 21.41, 52.27, 22.33, 34.70, 46.95, 16.07, 31.38, 37.76 and 19.68.
Number of values ( n ) = 10
Sum of the values = 318.23
Average of the rainfall in Austin, Texas is equal to:
Mean = Total sum / No. of Values
Mean = 318.23 / 10
Mean = 31.82 in
Data of San Antonio, Texas is as follows:
46.27, 28.45, 45.32, 16.54, 21.34, 47.25, 13.76, 30.69, 37.39 and 17.59.
Number of values ( n ) = 10
Sum of the values = 304.6
Average of the rainfall in San Antonio, Texas is equal to:
Mean = Total sum / No. of Values
Mean = 304.6 / 10
Mean = 30.46 in
So, comparatively the average of San Antonio is higher.
Therefore in San Antonio, Texas it rain more in a year, on average when compared to Austin, Texas.
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find 3 consecutive odd integers such that 3 times the sum of the first and second equals 13 less than the third
Three consecutive odd integers are -3, -1, and 1.
A detailed explanation of the answer.
To find 3 consecutive odd integers such that 3 times the sum of the first and second equals 13 less than the third, we can follow these steps:
Let's assume that the first odd integer is x.Thus, the second odd integer will be x + 2, and the third odd integer will be x + 4.The sum of the first and second odd integers is x + (x + 2) = 2x + 2.Three times the sum of the first and second odd integers is 3(2x + 2) = 6x + 6.Thirteen less than the third odd integer is (x + 4) - 13 = x - 9.Thus, the equation can be written as 6x + 6 = x - 9. Solving for x gives us x = -3.Then, the three consecutive odd integers are x, x + 2, and x + 4, which are -3, -1, and 1, respectively.Therefore, the three consecutive odd integers are -3, -1, and 1.
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if the number of degrees of freedom for a chi-square distribution is 25, what is the standard deviation? round to four decimal places. standard deviation
The standard deviation for a chi square distribution for given degree of freedom is 7.0711.
The chi-square distribution is parameterized by the number of degrees of freedom (df). As the number of degrees of freedom increases, the shape of the distribution becomes more symmetrical and approaches a normal distribution.
The standard deviation (σ) of a chi-square distribution with k degrees of freedom is given by the formula:
σ = sqrt(2k)
Therefore, for a chi-square distribution with 25 degrees of freedom:
σ = sqrt(2(25)) = sqrt(50) ≈ 7.0711
Rounding this to four decimal places gives a standard deviation of approximately 7.0711.
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Prove that any number raised to a negative exponent is equal to the reciprocal of the base raised to the opposite exponent. Use examples and explain
any number raised to a negative exponent is equal to the reciprocal of the base raised to the opposite exponent. Let's consider a number "a" raised to a negative exponent "-n". We can represent it as follows:
[tex]a^(-n) = 1 / (a^n)[/tex] To prove this, we can use the definition of negative exponents. When we have a negative exponent, we are essentially taking the reciprocal of the number raised to the positive version of that exponent. In other words, [tex]a^{-n}[/tex] is the same as 1 / [tex](a^n).[/tex]
For example, let's take the number 2 raised to the exponent -3:
[tex]2^(-3) = 1 / (2^3) = 1 / 8[/tex] We can also represent this as the reciprocal of 2 raised to the opposite exponent:
[tex]1 / (2^{-3}) = 1 / (1 / (2^3)) = 1 / (1/8) = 8[/tex]
As we can see, both approaches yield the same result. This can be generalized to any number "a" and any negative exponent "-n".
In summary, any number raised to a negative exponent is equal to the reciprocal of the base raised to the opposite exponent. This can be proven by using the definition of negative exponents and applying it to a specific example. This property is essential in many areas of mathematics and science, including algebra, calculus, and physics.
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1. Divide and simplify. **Please show all work to receive full credit 1/x+4 ÷ x-3/ x²+7x+12
After dividing and simplifying we get (x-3)/(x+3)
What is division?One of the four fundamental operations of arithmetic, or how numbers are combined to create new numbers, is division. The additional operations are addition, subtraction, and multiplication.
At a fundamental level, counting the instances in which one number is contained within another is one interpretation of the division of two natural numbers. There is no requirement that this quantity be an integer. For instance, if there are 20 apples and they are divided equally among four people, each person will get 5 apples (see picture).
The integer quotient, which is the quantity of times the second number is entirely contained in the first number, and the remainder are both produced by the division with remainder or Euclidean division of two natural numbers.
1/(x+4) divide by [tex](x-3)/(x^2 + 7x +12)[/tex]
Simplify : [tex]x^2 +7x +12[/tex]
[tex]x^2 + (3+4)x + 12[/tex]
[tex]x^2 + 3x +4x + 12[/tex]
[tex]x(x + 3) + 4(x + 3)[/tex]
[tex](x+3)(x+4)[/tex]
[tex]1/(x + 4) x (x-3)/(x+3)(x-4)[/tex]
After dividing and simplifying we get the following answer;
[tex]= (x-3)/(x+3)[/tex]
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noah sold 30 avocados that were small and large. he sold the small avocados for 35 cents and the large ones for 50 cents. if noah made $13.50, how many of each kind did he sell?
Noah sold 10 small avocados and 20 large avocados.
Let's assume that Noah sold "x" small avocados and "y" large avocados.
From the given information, we can write two equations:
x + y = 30 (since Noah sold a total of 30 avocados)
0.35x + 0.50y = 13.50 (since Noah made $13.50)
Now, we can use any method to solve these equations, such as substitution or elimination. Here, we will use the substitution method:
From the first equation, we can write:
x = 30 - y
Substituting this value of x in the second equation, we get:
0.35(30 - y) + 0.50y = 13.50
Simplifying this equation, we get:
10.50 - 0.35y + 0.50y = 13.50
0.15y = 3
y = 20
Substituting this value of y in the equation x = 30 - y, we get:
x = 30 - 20 = 10
Therefore, Noah sold 10 small avocados and 20 large avocados.
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SOMEONE, PLEASE HELP IM BEGGING
What are the arc length of an arc with radius 18 inches and central angle 22°? Round to nearest hundredth or leave in terms of π. SHOW YOUR WROK
Therefore , the solution of the given problem of angles comes out to be the arc length of the given arc 6.96 inches.
What does an angle mean?The curved lines which make up the ends of a skew are divided by its highest and bottom walls using Cartesian measurements. There is a possibility who two poles will collide at an intersection. Another result of two objects interacting is an angle. They most closely mimic dihedral shapes. Two line beams can be arranged in different ways between their extremities to form a two-dimensional curve.
Here,
The following is the algorithm for an arc's length:
=> (Central angle in degrees / 360°) x (2r) equals Arc Length
where r denotes the circle's radius.
The radius and central angle in this problem are both specified as 18 inches and 22 degrees. To determine the curve length, we can use the following formula:
=> Arc Length = 2 * 18 * (2 *360)
=> (0.0611) × (36) in, where:
=> 6.96 in
To the nearest hundredth or left in terms of, the arc length of the given arc is therefore roughly 6.96 inches.
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now fit a logistic model with a single explanatory variable mcat scores. why is the null deviance the same as that from part a.?
The MCAT scores variable can predict some of the variation in the response variable.
The logistic regression model is a type of regression analysis that is widely used in various fields. A logistic model can be fitted using the glm() function in R. Now fit a logistic model with a single explanatory variable, MCAT scores.In logistic regression, the null deviance is the deviance for a model that has only the intercept. The null deviance will always be equal to the residual deviance if the model has only the intercept.The null deviance is calculated based on the difference between the saturated and null models' likelihoods. It is the amount of variation in the response variable that cannot be explained by the model when no predictor variables are used. When the single predictor variable MCAT scores is added to the null model, it reduces the null deviance by 11.59. This is significant because it indicates that the MCAT scores variable can predict some of the variation in the response variable.
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Question 2 Which of the following is an important advantage of experiments over Select all that apply: observational studies? Check all that apply. points A 0 Ensuring that each subject in the trial receives the best possible treatment Isolating the effects of _ specific treatment c 0 Guaranteeing that approximately the same number of subjects is assigned to each treatment group Controlling for lurking variables to have = stronger case for causation
An important advantage of experiments over observational studies is that experiments can control for lurking variables to have a stronger case for causation. Another advantage is that experiments can isolate the effects of a specific treatment.
What is an experiment?
An experiment is a scientific study that is designed to test a hypothesis or investigate a cause-and-effect relationship between variables. Experiments allow researchers to manipulate one variable (independent variable) and observe the effect on another variable (dependent variable) while controlling for other variables that may affect the outcome (lurking variables).
What are observational studies?
Observational studies are research designs that observe and collect data from participants without manipulating any variables. In observational studies, the researchers only observe and record what happens naturally without intervening in any way. Observational studies are used when experiments are not feasible or ethical.
What are the advantages of experiments over observational studies?
Experiments have several advantages over observational studies. Some of the advantages include:
Control over variables: Experiments allow researchers to control for variables that may affect the outcome by manipulating one variable (independent variable) and keeping all other variables constant. This helps researchers to establish a cause-and-effect relationship between variables.
Isolation of specific effects: Experiments can isolate the effects of a specific treatment by comparing outcomes between treatment groups and control groups. This helps researchers to determine the effectiveness of the treatment with a high degree of accuracy.
Similarity between treatment groups: Experiments can ensure that approximately the same number of subjects is assigned to each treatment group, thereby minimizing the effects of individual differences on the outcome. This increases the statistical power of the study and reduces the likelihood of obtaining spurious results.
Control of extraneous variables: Experiments can control for lurking variables (extraneous variables) that may affect the outcome by manipulating one variable (independent variable) and keeping all other variables constant. This helps researchers to establish a strong case for causation.
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a state's license plates consist of 4 letters followed by 5 digits. how many possible license plates can be issued using this condition?
In the following question, among the conditions given, There are 26^4 x 10^5 possible license plates that can be issued using this condition.
Hence, This is because the license plates consist of 4 letters and 5 digits. There are 26 possible letters that can be used in the first four places, so the total possible combinations of 4 letters is 26^4. There are 10 possible digits that can be used in the last five places, so the total possible combinations of 5 digits is 10^5. Multiplying these two together gives the total number of possible license plates: 26^4 x 10^5.
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There are a total of $26^4 × 10^5$ possibilities, which simplifies to 26,000,000,000 (twenty-six billion) possibilities. Therefore, with this condition, twenty-six billion license plates can be issued.
A state's license plates consist of 4 letters followed by 5 digits.
How many possible license plates can be issued using this condition?
When designing a license plate, the condition provided in the question suggests that a license plate should consist of 4 letters followed by 5 digits.
Therefore, we can count the total number of license plates in two phases.
The number of choices for each segment must be taken into account separately for the letters and the numbers.
When considering the letter possibilities, there are 26 options for each position since there are 26 letters in the alphabet.
For the first 4 positions, there are a total of $26^4$ = 456,976 possibilities.
Similarly, for the last 5 positions,
there are 10 options for each position since there are 10 digits.
There are $10^5$ = 100,000 possibilities for the last 5 positions.
The entire plate's total number of combinations is obtained by multiplying these numbers.
There are a total of $26^4 × 10^5$ possibilities
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Is 8 a reasonable solution to log(-x)=log(x-16)?
A) Yes, 8 is a reasonable solution because 8 is positive and -(8)=(8)-16
B) No, 8 is NOT a reasonable solution because at x=8, the logarithm is not defined.
the sum of the proportions for all categories of a variable will be select one: a. 100.00 b. 10.00 c. 1.00 d. 0.10
In the following question, among the given options, The sum of the proportions for all categories of a variable will be (C.) "1.00."
What is proportion? Proportions are usually represented as a decimal numbers between 0 and 1. They can also be represented as a percentage between 0 and 100. Proportions show the relationship between a particular number and a whole group. The total sum of proportions will always be equal to 1.00, which represents the entire group or population. So the answer to the given question is c. 1.00.
ExplanationThe sum of the proportions for all categories of a variable will be 1.00 because of the following: Proportions of a categorical variable are used to analyze data in statistics. A proportion is a fraction of a whole group that represents a part of that group. Proportions are usually represented as a decimal numbers between 0 and 1. They can also be represented as a percentage between 0 and 100. The sum of the proportions for all categories of a variable will be 1.00 representing the whole group or population, which is equal to 100%. This is the same as saying that the proportions for all categories of a variable should add up to 100%.
Therefore, the correct answer to the question is c. 1.00.
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which is the best approximation of the volume of a cylinder with a radius of 10 mm, and a height of 5 mm? use 3.14 for pi.
The best approximation of the volume of a cylinder with a radius of 10 mm, and a height of 5 mm using 3.14 for pi is 1,570 cubic millimeters.
The formula for calculating the volume of a cylinder is as follows:
V = πr²h
Where V is the volume, r is the radius of the cylinder, and h is the height of the cylinder.
Substituting the values given in the formula, we have :
V = πr²hV = 3.14 × (10 mm)² × (5 mm)V = 3.14 × 100 mm² × 5 mm
V = 1,570 cubic millimeters.
Therefore, the best approximation of the volume of a cylinder with a radius of 10 mm, and a height of 5 mm using 3.14 for pi is 1,570 cubic millimeters.
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15. Anna has $2.00 in change, including 5 quarters. What is the maximum number of dimes she can have? A 2 C 7 B 5 D 9
Answer:
To solve the problem, we need to first determine the value of the quarters Anna has. Since there are 5 quarters, we have:
5 quarters = 5 x $0.25 = $1.25
Thus, Anna has $2.00 - $1.25 = $0.75 left. We can find the maximum number of dimes she can have by dividing this amount by the value of a dime, which is $0.10. Therefore:
$0.75 ÷ $0.10 = 7.5
Since Anna cannot have a fraction of a dime, we round down to the nearest whole number to get a maximum of 7 dimes. Therefore, the answer is option B, 5.
Identify the two choices that best completes the statement below.
What is the sum of the first 10 terms of the series 1 + 2 + 4 + 8...?
The sum of the first 10 terms of the geometric progression that is given in the question is 1023.
What is geometric progression ?
Geometric progression, also known as geometric sequence, is a sequence of numbers in which each term after the first is obtained by multiplying the preceding term by a fixed constant. This fixed constant is called the common ratio.
The given series is a geometric progression, where each term is obtained by multiplying the preceding term by 2. The first term is 1, and the common ratio is 2.
The sum of the first n terms of a geometric progression is given by the formula:
[tex]S_n = a(1 - r^n) / (1 - r)[/tex]
where a is the first term, r is the common ratio, and n is the number of terms.
Using this formula, we can find the sum of the first 10 terms of the given series as:
[tex]S_{10} = 1(1 - 2^{10}) / (1 - 2)[/tex]
[tex]= 1(1 - 1024) / (-1)[/tex]
[tex]= 1023[/tex]
Therefore, the sum of the first 10 terms of the series 1 + 2 + 4 + 8... is 1023.
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A bus company charges $2 per ticket but wants to raise the price. The daily revenue is modeled by R(x)=-30(x-6)^2+320, where x is the number of $0.15 price increases and R(x) is the revenue in dollars. What should the price of the tickets be for a maximum profit? Hint: don’t forget what price where you started.
The ticket price that maximizes profit is $2.90.
What is profit and how is it related to revenue and cost?
In business and economics, profit is the amount of money earned after all expenses and costs have been deducted from revenue. Profit is a key metric used to measure the financial success of a company or enterprise. It is calculated as follows:
Profit = Revenue - Cost
Revenue is the total income earned from the sale of goods or services, while cost is the total expense incurred to produce and sell those goods or services. Profit is an important measure of financial performance because it reflects how efficiently a company is using its resources to generate income.
Finding the price that maximizes profit:
We need to find the value of x that corresponds to the maximum value of the revenue function R(x). The price of the tickets can then be determined by adding the value of x to the initial price of $2.
Using the revenue function [tex]R(x)=-30(x-6)^2+320[/tex], we can find the value of x that maximizes the revenue as follows:
Take the derivative of R(x) with respect to x:
[tex]R'(x) = -60(x-6)[/tex]
Set the derivative equal to zero and solve for x:
[tex]R'(x) = 0[/tex]
[tex]-60(x-6) = 0[/tex]
[tex]x = 6[/tex]
Determine the second derivative of R(x) to check that x = 6 corresponds to a maximum:
[tex]R''(x) = -60[/tex]
Since R''(x) is negative, this confirms that x = 6 corresponds to a maximum.
Calculate the corresponding revenue at x = 6:
[tex]R(6) = -30(6-6)^2 + 320[/tex]
[tex]R(6) = 320[/tex]
Determine the ticket price by adding the value of x to the initial price of $2:
Ticket price = $2 + $0.15(x)
Ticket price = $2 + $0.15(6)
Ticket price = $2.90
Therefore, the ticket price that maximizes profit is $2.90.
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i need the answers in about 10 mins
which of the following is an example of quantitative research? question 3 options: a survey in which people are asked to indicate how much they trust a number of different politicians using a scale of 1-5, with 1
The answer is option a: a survey in which people are asked to indicate how much they trust a number of different politicians using a scale of 1-5, with 1 being the least amount of trust. This is an example of quantitative research.
Quantitative research requires participants to quantify their feelings and opinions using numerical values. It involves measuring variables and collecting numerical data, which can then be analyzed statistically. In this case, the survey data can be analyzed to measure the amount of trust people have in politicians.
The survey asks participants to quantify their trust in politicians using a numerical scale, with 1 being the least amount of trust.The data collected from this survey is numerical and can be analyzed using statistical methods.The results of this quantitative research can be used to measure the amount of trust people have in politicians.For more such questions on Quantitative research.
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I have a square piece of card. I cut a triangle from each corner so that the remaining card is in the shape of a regular octagon. The perimeter of the regular octagon is 32cm. Work out length y
The required length of y representing the length of the cut piece from each corner of triangle to form regular octagon is equal to 2√2cm.
Let us consider the length of the side of the square card be x
Cut the corners of the triangle of length y cm.
Then as triangles at the corner are right angled triangle.
Using Pythagoras theorem we have,
Each side of the regular octagon is same as hypotenuse .
Hypotenuse = √y² + y²
⇒Hypotenuse = y√2
Length of each of regular octagon = y√2
Perimeter of the octagon = 8y√2
⇒8y√2 = 32
⇒ y = 4/√2
⇒ y = 2√2cm.
Therefore, the length of y with the given perimeter of the regular octagon is equal to 2√2cm.
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based solely on statistical probability from demographic studies, which individual has the greatest likelihood of being a smoker?
Based solely on statistical probability from demographic studies, the individual who has the greatest likelihood of being a smoker is a male aged between 18 to 24 years old.
According to demographic studies, men are more likely to smoke than women. Besides, the smoking rate increases with age, which means individuals aged between 18 to 24 have a higher likelihood of being a smoker than people of other ages.
Therefore, based solely on statistical probability from demographic studies, a male aged between 18 to 24 years old has the greatest likelihood of being a smoker.
It is important to note that statistical probability from demographic studies only shows what is likely or probable to happen but does not guarantee the actual occurrence of the event.
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For what values of a are the following expressions true?
(PLease help ASAP)
|a +5| = −5−a
|a +5 |=a +5
The equation |a + 5| = −5 − a is not true for any value of a, while the equation |a + 5| = a + 5 is true for values of a greater than or equal to -5.
The absolute value of a number is defined as the distance of the number from zero on a number line. Thus, |a + 5| is equal to the distance of (a + 5) from zero on a number line. Since distance is always non-negative, |a + 5| is always non-negative.
On the other hand, the expression −5 − a is always negative, since the sum of a negative number (-5) and any number (a) is always negative.
Therefore, for the equation |a + 5| = −5 − a to be true, the absolute value of (a + 5) would have to be negative, which is impossible since absolute value is always non-negative.
For the equation |a + 5| = a + 5 to be true, a must be greater than or equal to -5, because when a is greater than or equal to -5, (a + 5) is already non-negative, so the absolute value of (a + 5) is equal to (a + 5).
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please help 20 points 10 ft 20 ft 15 ft Find the area. A = [?] ft² Round to the nearest hundredth. Remember: A = πr² Use 3.14 for π. Enter
Answer:
about 307.08 square feet
Step-by-step explanation:
[tex] \frac{1}{2} (20)(15) + \frac{1}{2} \pi( {10}^{2} ) = 307.08[/tex]
suppose that each party must select a speaker and a vice speaker. how many ways are there for the speaker and vice speaker to be selected in the demonstrators party?
There are n x (n-1) number of ways for the speaker and vice speaker to be selected in the demonstrator's party, where n is the number of members in the party.
For the demonstrator's party, the first position of the speaker can be filled by any of the n members. After the speaker is chosen, there are n-1 members left to select from for the position of vice speaker. Therefore, the total number of ways the speaker and vice speaker can be selected is n x (n-1).
For example, if the demonstrator's party has 4 members, there are 4 choices for the speaker position. After the speaker is chosen, there are 3 choices left for the position of vice speaker. So, the total number of ways to select a speaker and vice speaker in the party is 4 x 3 = 12.
This formula can be applied to any size of the party to determine the total number of possible ways to select a speaker and vice speaker.
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suppose 60% of american adults believe martha stewart is guilty of obstruction of justice and fraud related to insider trading. we will take a random sample of 20 american adults and ask them the question. then the sampling distribution of the sample proportion of people who answer yes to the question is: group of answer choices
Suppose 60% of American adults believe Martha Stewart is guilty of obstruction of justice and fraud related to insider trading.
We will take a random sample of 20 American adults and ask them the question. Then the sampling distribution of the sample proportion of people who answer yes to the question is a binomial distribution.
What is a binomial distribution?A binomial distribution is a statistical distribution that represents the likelihood of one of two outcomes in a sequence of independent trials. Binomial distributions can be used to model a variety of phenomena, including flipping coins, rolling dice, and performing multiple independent experiments.
The probability of getting k successes in n trials in a binomial distribution with probability of success p and probability of failure q is given by the following formula:P (k) = nCk * p^k * q^(n-k)Where nCk is the binomial coefficient, which represents the number of ways to select k items from a set of n items without regard to order.
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This is parallelograms practice and I don’t get it at all!! Please help me guys
Step-by-step explanation:
p-grams have equal opposite side lengths
soooo
5x+7 = 27
x = 4
then 22x = 22(4) = 88 units ( this is also AB length)
COFFEE A national coffee chain makes and serves 4 billion cups of coffee in a year. If the average cup of coffee costs $3.15, how much money does the coffee chain make in a year? Write your answer in scientific notation.
Answer: 1.26 × 10 to the 10th power
Step-by-step explanation:
solve the inequality
`-5x+2<=12`
The solution for the inequality is obtained as: x =>-2
Explain about the inequality of the number?In mathematics, "inequality" refers to a relationship between equations or values that is not equal to each other. Hence, inequality emerges from a lack of balance.
We can see the values that an inequality represents by placing it on a number line. On a number line, inequalities are represented by tracing a straight path and designating the end points by using an open or closed circle.The given inequality
-5x + 2 <= 12`
Subtract each side by - 2
-5x + 2 - 2 <= 12 - 2
-5x <= 10
Dive each side by -5 (it will reverse the sign)
-5x / -5 => 10/-5
x => -2
Thus, the solution for the inequality is obtained as: x =>-2
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