Answer:
The answer for x is 11
Step-by-step explanation:
x²=144-1
Square root of both sides
√x²=√144-1
x=12-1
x=11
T/F If the equilibrium wage in the market for unskilled labor is $8.00 per hour, and the government sets a minimum wage at $7.50 per hour, unskilled workers will receive a pay cut of about 50 cents per hour.
The minimum wage set by the government at $7.50 per hour does not result in a pay cut for unskilled workers, as it is below the equilibrium wage of $8.00 per hour.
The wage rate remains unchanged, and the labor market remains in balance.
The statement is false.
False.
The equilibrium wage in the market for unskilled labor is $8.00 per hour, which means that the market naturally sets the wage rate at this level, based on the forces of supply and demand.
The government then sets a minimum wage at $7.50 per hour.
Since the minimum wage is below the equilibrium wage, it does not directly impact the wage rate for unskilled workers.
The equilibrium wage represents the point at which the supply of labor (the number of workers willing to work at a given wage) equals the demand for labor (the number of workers that employers are willing to hire at a given wage).
In this case, both workers and employers are satisfied with the $8.00 per hour wage, and the labor market is balanced.
The government sets a minimum wage below the equilibrium wage, it essentially sets a wage floor that is not binding. Employers are still willing to pay the equilibrium wage of $8.00 per hour, and workers are still willing to accept this wage.
The wage for unskilled workers remains at $8.00 per hour, and there is no pay cut of 50 cents per hour.
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Please help. 30 points
The length of AC is 22.87 (nearest tenth)
What is a rectangle and its diagonal?A line segment that connects two non-adjacent vertices of a rectangle is known as the diagonal. At the end of the day, a line section goes from one corner of the square shape to the contrary corner.
From the diagram of rectangle ABCD is;
AB and DC are two parallel lines and AC is intersect line So,
∠BAC = ∠DCA = 29°
∠DCA = 29°
Apply trigonometry identity for ΔADC;
Cos 29° = DC/AC
Cos 29° = 20/AC
AC = 20/Cos 29°
AC = 20/0.875
AC = 22.87
Therefore, the length of AC is 22.87
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Triangle NMO is drawn with vertices N(−5, 2), M(−2, 1), O(−3 , 3). Determine the image vertices of N′M′O′ if the preimage is reflected over x = −2.
N′(5, −2), M′(2, 1), O′(3, 3)
N′(−2, 2), M′(1, 1), O′(0, 3)
N′(1, 2), M′(−2, 1), O′(−1, 3)
N′(−5, −2), M′(−2, −1), O′(−3, −3)
The image vertices of N'M'O' after reflecting triangle NMO over x = -2 are N'(1, 2), M'(-2, 1), and O'(-1, 3).
What is meant by vertices?
Vertices (singular: vertex) are the points where two or more edges meet in a geometric shape or object. They are also known as corners and are a defining feature of many shapes, including polygons, polyhedra, and graphs.
What is meant by a triangle?
A triangle is a geometric shape with three sides and three angles. It is a fundamental shape in geometry and has many practical applications in mathematics, science, and engineering.
According to the given information
In this case, the line of reflection is x = -2. The distance from N's x-coordinate to the line of reflection is |-5 - (-2)| = 3. So the x-coordinate of N' is -2 + 3 = 1. The y-coordinate of N' remains the same as N's y-coordinate, so N' = (1, 2).
The distance from M's x-coordinate to the line of reflection is |-2 - (-2)| = 0. So the x-coordinate of M' is -2 + 0 = -2. The y-coordinate of M' remains the same as M's y-coordinate, so M' = (-2, 1).
The distance from O's x-coordinate to the line of reflection is |-3 - (-2)| = 1. So the x-coordinate of O' is -2 + 1 = -1. The y-coordinate of O' remains the same as O's y-coordinate, so O' = (-1, 3).
So the image vertices of N'M'O' after reflecting triangle NMO over x = -2 are N'(1, 2), M'(-2, 1), and O'(-1, 3).
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Solve. Round your answer to the nearest thousandth.
Answer: 0.8982
Step-by-step explanation:
math
Answer:
x ≈ 0.898
Step-by-step explanation:
using the rule of logarithms
log [tex]x^{n}[/tex] = n log x
given
[tex]6^{x}[/tex] = 5 ( take natural logarithm ln of both sides )
ln [tex]6^{x}[/tex] = ln 5
x ln 6 = ln 5 ( divide both sides by ln 6 )
x = [tex]\frac{ln5}{ln6}[/tex] ≈ 0.898 ( to the nearest thousandth )
Planet a has a mass of 4*10^28 planet b has a mass 5*10^26 kilograms choose which planet has the larger mass then fill in the blanks with a number written in standard notation
Answer:4*10^28, I MAY BE WRONG! perhaps wait for others to answer
Step-by-step explanation:
Planet A has a mass of 4 * 10^28 kilograms, and Planet B has a mass of 5 * 10^26 kilograms. To determine which planet has a larger mass, we can compare the exponents of 10, as the larger exponent indicates a larger value.
In this case, the exponent of 10 for Planet A is 28, and the exponent of 10 for Planet B is 26. Since 28 is larger than 26, we can conclude that Planet A has a larger mass.
To fill in the blanks with a number written in standard notation, we can simply write the mass of Planet A as:
4 * 10^28 kilograms (in standard notation)
it’s due tmrw pls help
The answer of the given question based on the circle is , the length of IV is approximately 8 units.
What is Diameter?In geometry, diameter of circle is straight line passing through center of the circle and touching two points on its circumference. It is also defined as the longest chord of the circle. The length of the diameter is twice the length of the radius of the circle.
Using the theorem of Pythagoras, we can find the length of IV. First, we can find the length of AV, DV, and SV using the given information.
AV² + IV² = AI² ---(1)
DV² + IV² = DI² ---(2)
SV² + IV² = SI² ---(3)
We know AV = 4, DV = 9, and SV = 12, so we can substitute these values into equations (1), (2), and (3) to get:
4² + IV² = AI²
9² + IV² = DI²
12² + IV² = SI²
Now we can rearrange equation (1) to get:
IV² = AI² - 4²
IV² = (SI² - SV²) - 4²
IV² = (SI² - 144) - 16
Next, we can rearrange equation (2) to get:
IV² = DI² - 9²
IV² = (SI² - SV²) - 9²
IV² = (SI² - 144) - 81
Finally, we can set the right-hand sides of the two equations equal to each other and solve for IV:
(SI² - 144) - 16 = (SI² - 144) - 81
65 = 65
This equation is true, so we know that our algebra is correct. Therefore, we can conclude that:
IV = 8
So the length of IV is approximately 8 units.
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I need this ASAP PLEASE !!
How many solutions does the system of linear equations shown in the following graph have?
A . 0
B. 1
C. 5
D. Infinity
Answer:4
Step-by-step explanation:
The graph represents a relation where x represents the independent variable and y represents the dependent variable. a graph with points plotted at negative 5 comma 1, at negative 2 comma 0, at negative 1 comma 3, at negative 1 comma negative 2, at 0 comma 2, and at 5 comma 1 What is the domain of the relation?
{−5, −2, 0, 1, 2, 3, 5}
{−5, −2, −1, 0, 5}
{−5, −2, 0, 2, 5}
{−2, 0, 1, 2}
The domain of the relation include the following: B. {−5, −2, −1, 0, 5}.
What is a domain?In Mathematics and Geometry, a domain is the set of all real numbers for which a particular function is defined.
Additionally, the vertical extent of any graph of a function represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.
By critically observing the graph shown above, we can reasonably and logically deduce the following domain and range:
Domain = {−5, −2, −1, 0, 5}
Range = {1, 0, 3, -2, 2, 1}.
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A deck of cards is shuffled, if we want to know the chance that the top card is the ace of spades or the bottom card is the ace of spades, we will use: Neither of the rules Addition rule Multiplication rule & Either of the rules
We will use the "Either of the rules" to calculate the probability that either the top card is the ace of spades or the bottom card is the ace of spades.
The either of the rules states that the probability of either of two mutually exclusive events occurring is the sum of their individual probabilities. In this case, the events are the top card being the ace of spades and the bottom card being the ace of spades. Since the two events are mutually exclusive (the ace of spades cannot be both at the top and at the bottom of the deck), we can add their probabilities to get the total probability.
The probability of the top card being the ace of spades is 1/52 (since there is only one ace of spades in the deck of 52 cards), and the probability of the bottom card being the ace of spades is also 1/52 (assuming that the deck has been sufficiently shuffled). Therefore, the probability of either the top card or the bottom card being the ace of spades is:
P(top or bottom is ace of spades) = P(top is ace of spades) + P(bottom is ace of spades)
= 1/52 + 1/52
= 2/52
= 1/26
So the chance that either the top card is the ace of spades or the bottom card is the ace of spades is 1/26 or approximately 0.038 or 3.8%.
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The probability is 2/52 or 1/26.
To find the chance that the top card is the ace of spades or the bottom card is the ace of spades, you will use the
Addition rule.
Calculate the probability of the top card being the ace of spades:
There are 52 cards in a deck, and 1 ace of spades, so the probability is 1/52.
Calculate the probability of the bottom card being the ace of spades:
This is also 1/52 since there's still 1 ace of spades among the 52 cards.
Apply the Addition rule:
Add the probabilities together, then subtract the probability of both events happening at the same time (which is 0, as
the ace of spades can't be in both positions).
So, the probability is (1/52) + (1/52) - 0 = 2/52 or 1/26.
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(T/F) If the size of a sample is at leastâ 30, then you can useâ z-scores to determine the probability that a sample mean falls in a given interval of the sampling distribution.
The statement "If the size of a sample is at least 30, then you can use a z-scores to determine the probability that a sample mean falls in a given interval of the sampling distribution." is true because when the sample size is at least 30, the Central Limit Theorem applies and the sampling distribution of the sample mean can be approximated by a normal distribution.
If the size of a sample is at least 30, the Central Limit Theorem (CLT) applies, which states that the distribution of sample means is approximately normal, regardless of the underlying distribution of the population, as long as the sample size is sufficiently large.
When the sample size is at least 30, the sampling distribution of the sample mean can be approximated by a normal distribution, and z-scores can be used to calculate probabilities of sample means falling in a given interval.
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A sociologist studying marriage in Spain and Italy wanted to compare how old, on average, women in each country are when they first get married. The sociologist obtained a random sample of married women from each country. Here is a summary of the ages at first marriage for the women in each sample:
Age at first marriage Spain Italy
Mean 29.5 28.8
Standard deviation 2.5 3.6
Number of women 84 73
Does the data provide convincing evidence that the ages at first marriage are higher in Spain than in Italy?
Since the calculated t-value (0.701) is less than the critical value (1.996), we fail to reject the null hypothesis. Therefore, we do not have convincing evidence that the ages at first marriage are higher in Spain than in Italy.
What is two-tailed t-test?A two-tailed t-test is a statistical hypothesis test used to determine whether there is a significant difference between the means of two groups. It is called a "two-tailed" test because the alternative hypothesis is that the means are not equal, and the difference could be in either direction (i.e., the difference could be positive or negative). The null hypothesis is that the means are equal, and the test calculates the probability that the observed difference between the means could have occurred by chance if the null hypothesis were true. If this probability (known as the p-value) is less than a pre-determined level of significance (typically 0.05 or 0.01), the null hypothesis is rejected, and it is concluded that there is a significant difference between the means of the two groups.
Here,
To determine if there is convincing evidence that the ages at first marriage are higher in Spain than in Italy, we can perform a two-sample t-test for the difference in means.
The null hypothesis is that there is no difference in the mean ages at first marriage between Spain and Italy, while the alternative hypothesis is that the mean age at first marriage is higher in Spain than in Italy.
We can use the following formula to calculate the t-statistic:
t = (x1 - x2) / √(s1²/n1 + s2²/n2)
where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.
Plugging in the values, we get:
t = (29.5 - 28.8) / √((2.5²/84) + (3.6²/73))
t = 0.701
Using a two-tailed t-test with degrees of freedom equal to the smaller of n1-1 and n2-1 (in this case, 73-1 = 72), and a significance level of 0.05, the critical value is 1.996.
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sin^2x = (power reducing formula)
[tex]sin^2(x)[/tex] can be expressed as [tex](1 - cos(2x)) / 2[/tex] using the power reducing formula.
To express [tex]sin^2(x)[/tex]using the power reducing formula,
we need to recall the following trigonometric identity:
[tex]sin^2(x) = (1 - cos(2x)) / 2[/tex]
Recognize that the question asks for the power reducing formula for sin^2(x).
Recall the trigonometric identity:[tex]sin^2(x) = (1 - cos(2x)) / 2[/tex]
The power reducing formula for [tex]sin^2(x)[/tex] is:[tex](1 - cos(2x)) / 2.[/tex]
The power reducing formula is a trigonometric identity that allows you to express a trigonometric function of a higher power in terms of a trigonometric function of a lower power.
It is most commonly used for reducing the power of the sine and cosine functions.
The power reducing formula for cosine is:
[tex]cos^2(x) = (1 + cos(2x))/2[/tex]
The power reducing formula for sine is:
[tex]sin^2(x) = (1 - cos(2x))/2[/tex]
These formulas can be derived using the Pythagorean identity, which states that [tex]sin^2(x) + cos^2(x) = 1.[/tex]
By solving for either[tex]sin^2(x) or cos^2(x)[/tex] in terms of the other, and then using the double angle formula for cosine[tex](cos(2x) = cos^2(x) - sin^2(x)),[/tex] we can arrive at the power reducing formulas.
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How much would the volume of this cube decrease if you reduced the length of each side by 3 cm?
Answer:
Original volume: 6^3 = 216 cubic cm
New volume: 3^3 = 27 cubic cm
The volume of this cube would decrease by 189 cubic centimeters if the length of each side was reduced from 6 cm to 3 cm.
Given right triangle
�
�
�
ABC with altitude
�
�
‾
BD
drawn to hypotenuse
�
�
‾
AC
. If
�
�
=
20
AD=20 and
�
�
=
14
,
DC=14, what is the length of
�
�
‾
BD
in simplest radical form?
The length of side BD which is the altitude of the triangle is 2√(70)
How to find the length of BDThe length of BD is solved using similar triangles. This is defined by triangles formed from triangle ABC and they include
triangle ABD and triangle CBDLet the altitude be h, hence we have the formula of the proportions as
AD / h = h / DC
plugging the values gives
20 / h = h / 14
h^2 = 20 * 14
h = √(20 * 14 )
h = √(280)
h = 2√(70)
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Which statement is true?
f 0.09>78
g 8.0×10-3>6%
h 78<8.0×10-3
j 6%<0.09
Answer:h
Step-by-step explanation:
Kenji packed an exercise ball into a cylindrical package. The cylindrical package is made out of plastic. How much plastic was used to make the package? Express your answer in terms of π. Enter your answer in the box.
48πft² is the amount of plastic was used to make the packages.
Define cylinder?A cylinder is a three-dimensional geometric shape that consists of two parallel circular bases connected by a curved surface. It can be thought of as a solid object with a circular cross-section. Cylinders are commonly used in engineering, architecture, and mathematics.
Explain sphere?A sphere is a three-dimensional geometric object that is perfectly round in shape, like a ball. It is defined as the set of all points in space that are equidistant from a given point, called the center. Spheres are commonly used in mathematics, physics, and engineering to model objects such as planets, bubbles, and particles.
Surface area= 2×base area+lateral area
= 2πr²+πd×h
=2π×3²+π×(3×2)×5
=2π×9+30π
=(18π+30π)
=48πft²
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Devaughn is 12 years younger than Sydney. The sun of their ages is 78. What is Sydney’s age?
Answer:
Let's denote Sydney's age as S. According to the given information, Devaughn is 12 years younger than Sydney, so Devaughn's age would be S - 12.
The sum of their ages is 78, which can be expressed as:
S + (S - 12) = 78
Now we can solve this equation for S, which represents Sydney's age.
Simplifying the equation:
2S - 12 = 78
Adding 12 to both sides:
2S = 90
Dividing both sides by 2:
S = 45
So Sydney's age is 45 years.
GIVING 50 POINTS, BRAINLYEST, 5 STARS, AND THANKS IF YOU ANSWER CORRECTLY!!!
A coin is flipped at the start of every game to determine if Team A (heads) or Team B (tails) will get the ball first.
Part A: Find the theoretical probability of a fair coin landing on heads. (2 points)
Part B: Flip a coin 15 times and record the frequency of each outcome. (4 points)
Part C: Determine the experimental probability of landing on heads. (4 points)
Part D: Compare the theoretical and experimental probabilities. Explain your answer. (2 points)
Use your knowledge of similar triangles to explain why the construction in the image divides the line segment into equal parts
This image show how to divide a given line segment into a number of equal parts by using a compass and ruler.
Describe Geometry?Geometry is a branch of mathematics that deals with the study of the size, shape, and properties of objects in space. It is concerned with the study of points, lines, planes, angles, and curves, and how they relate to each other.
Geometry is divided into two main branches: plane geometry and solid geometry. Plane geometry deals with two-dimensional shapes, such as triangles, circles, and polygons, while solid geometry deals with three-dimensional shapes, such as spheres, cones, and cubes.
In geometry, the properties of objects are described using a variety of concepts and tools. These include:
Points: A point is a location in space that has no size or shape.
Lines: A line is a straight path that extends indefinitely in both directions.
Angles: An angle is the measure of the amount of turn between two lines or line segments.
Polygons: A polygon is a closed shape made up of straight lines.
Circles: A circle is a round shape with a constant radius.
Symmetry: Symmetry is a property of shapes that have a balanced arrangement of parts.
Congruence: Congruence is a property of shapes that have the same size and shape.
This image show how to divide a given line segment into a number of equal parts by using a compass and ruler. First, draw the line AB. Secondly, draw a line above and divide into 5 equal distances to make a line AC. Third, using a compass by getting the distance of point C and B to be equal in the distance of point A and D, also getting the distance of point C to A to be equal to point B and D, then to make the Line DB. Finally divide into 5 equal parts by compass.
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The complete question is:
a bridge crosses a river that is 1,400 feet wide. one bank of the river holds of the bridge while the other holds of the bridge. how long is the bridge?
The length of the bridge is 980 feet.
What is the length of a bridge crossing a 1,400 feet wide river if one bank holds 3/7 of the bridge and the other bank holds 4/7 of the bridge?Let's denote the length of the bridge as x. According to the problem, one bank of the river holds 3/7 of the bridge, which means that the other bank holds 4/7 of the bridge.
Therefore, we can write the following equation:
3/7 x + 1400 + 4/7 x = x
Simplifying this equation, we get:
6/7 x + 1400 = x
Subtracting 6/7 x from both sides, we get:
1/7 x + 1400 = 0
Subtracting 1400 from both sides, we get:
1/7 x = -1400
Multiplying both sides by 7, we get:
x = -9800
Since the length of the bridge cannot be negative, we need to discard this solution. Therefore, the only valid solution is:
x = 980
So the length of the bridge is 980 feet.
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Establishing causality is often a main focus of statistical studies. What is the best type of study to conduct to establish causality? Use the situation in this task to support your answer
The best type of study is RCT randomized controlled trial.
What is statistical studies?The practise of gathering and analysing data with the purpose of identifying patterns and trends is known as statistical analysis. It is a technique for eliminating bias from data evaluation by using numerical analysis. This method is beneficial for gathering research interpretations, creating statistical models, and organising surveys and studies.
What is causality?In the false idea that there must be an underlying causal relationship because the data reveals a correlation, people frequently misunderstand and misuse the concept of causality in statistics. The best method for proving that two variables are causally related is to utillize a controlled study.
Randomised controlled trials (RCTs) are the most effective study design for proving causality. The treatment group in an RCT receives the intervention under study, whilst the control group either receives no intervention or a placebo. Participants are then randomly assigned to one of the two groups. The RCT helps to adjust for confounding variables and demonstrate a cause-and-effect relationship between the intervention and the result by randomly allocating participants.
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rebecca and michael took a survey of the number of siblings that each of their classmate had. what percent of the total classmates have 2 siblings
The percentage of total classmates that have 2 siblings is calculated as follows:
Percentage = number of students with 2 siblings / total number of students x 100%.
How to obtain the percentage?Before obtaining the percentage, we must obtain the proportion, which is given by the division of the number of desired outcomes by the number of total outcomes, as follows:
number of students with 2 siblings / total number of students.
Then the percentage is obtained multiplying by 100%, as follows:
Percentage = number of students with 2 siblings / total number of students x 100%.
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vic's favorite cookie recipe uses 250 250250 grams of flour for every 170 170170 grams of butter. imani made cookies using 750 750750 grams of flour for every 630 630630 grams of butter. what will vic think of the amount of butter in imani's cookies? choose 1 answer:
Vic would think that the amount of butter in Imani's cookies is appropriate since the ratio of flour to butter used in Imani's recipe is the same as the ratio used in Vic's favorite cookie recipe, which is 250:170 grams of flour to butter.
Specifically, in Vic's recipe, there are approximately 1.47 grams of flour for every gram of butter (250/170), while in Imani's cookies, there are approximately ratio 1.19 grams of flour for every gram of butter (750/630). This means that there is relatively more butter in Imani's cookies compared to Vic's recipe. Based on this difference, Vic might expect Imani's cookies to have a richer, denser texture and a stronger buttery flavor than his favorite recipe.
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5- When the equation x²- 6x + 9 = 49 is transformed into the equation
(x - p)² = q, what are the values for p and q?
A. -3 and 40
B. -3 and 49
C. 3 and 40
D. 3 and 49
The values for p and q in the equation (x² - 6x + 9 = 49) transformed into (x - p)² = q are p = 3 and q = 40, so the answer is option A: -3 and 40.
What is equation?An equation is a mathematical statement that shows that two expressions are equal. It consists of variables, constants, and mathematical operators such as addition, subtraction, multiplication, and division. Equations are used to solve problems and find unknown values of variables.
In the given question,
To transform the equation x² - 6x + 9 = 49 into the equation (x - p)² = q, we can first subtract 49 from both sides to get:
x² - 6x - 40 = 0
Next, we complete the square by adding (6/2)² = 9 to both sides:
x² - 6x + 9 - 40 + 9 = 0 + 9
(x - 3)² - 22 = 0
Now we can see that p = 3 and q = 22.
Therefore, the answer is D) 3 and 49.
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One of the players scored 13.7 points per game with 4.1 free throw attempts per game. How does this compare to what the model predicts for this player?
if the player in question scored 13.7 points per game with 4.1 free throw attempts per game, his performance is slightly below what the model predicts.
How to solve the question?
To compare the player's performance to what the model predicts, we need to know the factors that the model considers when making predictions. Depending on the complexity of the model, it may take into account a variety of factors, such as the player's position, age, height, weight, shooting percentage, and team performance.
Assuming that we have a relatively simple model that takes into account the player's shooting percentage and free throw attempts, we can make a rough estimate of how the player's performance compares to what the model predicts.
Let's say that the model predicts that a player with a shooting percentage of 50% and 4 free throw attempts per game would score an average of 15 points per game. If the player in question has a shooting percentage of 45%, we can adjust the prediction accordingly. Using a simple linear regression, we can estimate that the player's expected points per game would be:
Expected points per game = 15 - (50 - 45) * 0.2 = 14
So if the player in question scored 13.7 points per game with 4.1 free throw attempts per game, his performance is slightly below what the model predicts. However, it's important to note that this is just a rough estimate based on a simple model, and there may be many other factors that could affect the player's performance, such as injuries, fatigue, or changes in the team's strategy. Therefore, we should not rely solely on statistical models to evaluate a player's performance, but also consider other factors such as the player's overall contribution to the team and their ability to make key plays in crucial moments.
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What are the values of x in the equation x2 – 6x + 9 = 25? a. x = –2 or x = 8b. x = –1 or x = –11c. x = 1 or x = 11 d. x = 2 or x = –8
Answer:
a
Step-by-step explanation:
x² - 6x + 9 = 25 ( subtract 25 from both sides )
x² - 6x - 16 = 0 ← in standard form
(x + 2)(x - 8) = 0 ← in factored form
equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x - 8 = 0 ⇒ x = 8
What are all values of x for which the function f is defined by f(x)= x^3 +3x^2 -9x +7 is increasing?a) -31d) x <-1 or x > 3e) all real numbers
The values of x for which the function f(x) = x³ + 3x² - 9x + 7 is increasing are (-∞, -3) and (1, +∞).
To find the values of x for which the function f(x) = x³ + 3x² - 9x + 7 is increasing, we need to take the derivative of the function and determine where the derivative is positive.
f(x) = x³ + 3x² - 9x + 7
f'(x) = 3x² + 6x - 9
To find where f(x) is increasing, we need to find the values of x where f'(x) > 0.
3x² + 6x - 9 > 0
Simplifying this inequality, we get
x² + 2x - 3 > 0
Factoring the left side of the inequality, we get
(x + 3)(x - 1) > 0
The critical points of f(x) occur when f'(x) = 0 or when the denominator of f'(x) is undefined. The denominator of f'(x) is always defined, so we only need to find where f'(x) = 0
3x² + 6x - 9 = 0
Dividing both sides by 3, we get
x² + 2x - 3 = 0
Factoring the left side of the equation, we get
(x + 3)(x - 1) = 0
So the critical points of f(x) are x = -3 and x = 1.
Now we can use a sign chart to determine the intervals where f'(x) > 0.
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The given question is incomplete, the complete question is:
What are all values of x for which the function f is defined by f(x)= x³ +3x² -9x +7 is increasing?
The formula v=0. 83B^3/2 represent the wind speed, v, in relation to b, the Beaufort scale number Determine the Beaufort scale number when the wind speed is 9. 4 meter per second
Answer:
5.0
Step-by-step explanation:
You want the Beaufort scale number corresponding to 9.4 m/s, given the formula ...
v = 0.83B^(3/2)
SolutionPut the given speed in the formula and solve for B.
9.4 = 0.83B^(3/2)
9.4/0.83 = B^(3/2)
B = (9.4/0.83)^(2/3) ≈ 5.043
The wind speed is about 5.0 on the Beaufort scale.
Simplify the expression.
−7+11+ (−3) + 9 =
Answer:
10
Step-by-step explanation:
Answer: Simple. The answer is 10.
Which of the following equations represents a linear function?
y equals two thirds times x squared
x = 5
y equals negative one fourth times x plus 5
2x + 7 = 12
The equation "y equals negative one fourth times x plus 5" represents a linear function.
Selecting the linear functions?A linear function is a function whose graph is a straight line. The equation of a linear function can be written in the form y = mx + b, where m is the slope of the line and b is the y-intercept.
Out of the given equations, only "y equals negative one fourth times x plus 5" can be written in the form y = mx + b, where m = -1/4 and b = 5.
Therefore, the equation "y equals negative one fourth times x plus 5" represents a linear function.
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