What is the value of 4 in 27.43?
Answers
Answer: Tenths
Step-by-step explanation:
If you were to draw a place value chart, it would look like this:
T O . ths hths
2 7 . 4 3
The answer is 4 tenths.
Related Questions
How to find the missing side of angles if each pair of figures are similiar
Answers
Answer:
To find missing sides you subtract the angle from 180.
Step-by-step explanation:
If you have 40 and 30 you subtract them from 180 to find the missing lengh
A teacher wants to test whether his students will perform better on their exam if the room where they take the exam is cooled to a freezing temperature. On the day of an exam, he randomly assigned his class into two groups. One group took the exam under regular conditions and one group took the exam in a freezing cold room. After the exam, the teacher calculated the average score in each group. Assume that all conditions for inference have been met. Which of these is the most appropriate test and alternative hypothesis?.
Answers
Considering the situation described in the text, we have that:
A two-sample t-test is used.The null hypothesis is \(H_0: \mu_F - \mu_R = 0\). The alternative hypothesis is \(H_1: \mu_F - \mu_R > 0\).In this problem, we consider that:
\(\mu_R\) is the mean score of students who took the exam in regular conditions.\(\mu_F\) is the mean score of students who took the exam in freezing cold conditions. What are the hypothesis tested?At the null hypothesis, we test if both groups have the same mean score, that is, the subtraction of the means is of 0, hence:
\(H_0: \mu_F - \mu_R = 0\)
At the alternative hypothesis, we test if students that did the test in freezing cold conditions performed better, that is, the subtraction is positive, hence:
\(H_1: \mu_F - \mu_R > 0\).
We have the comparison(subtraction) of two samples, and we have the standard deviation for each sample, not for the population, hence a two-sample t-test is used.
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Factor completely 3x − 12.
a. 3(x − 4)
b. 3(x + 4)
c. 3x(−12)
d. Prime
Answers
Answer:
Isabelle is taking a survey to find the most popular music group of students in her community. Which of these is not a way for her to get a representative sample of this information?
ask every tenth student she sees ac a concert
ask every fifth student entering her school in the morning
ask every third student she encounters at the mall
ask every student at a local movie theater
Step-by-step explanation:
the coase theorem reminds us that efficiency is all about maximizing total
Answers
The Coase theorem is an economic theory that states that in the absence of transaction costs, the allocation of resources and the distribution of wealth will be efficient regardless of how property rights are assigned.
In this context, the theorem reminds us that efficiency is all about maximizing total welfare, rather than focusing solely on the allocation of resources or the distribution of wealth. When transaction costs are low or non-existent, parties can negotiate with each other to reach mutually beneficial agreements that maximize their combined welfare. This means that ownership of property or resources is less important than the ability of parties to freely negotiate with one another.
For example, imagine two neighboring farms: one produces apples and the other produces honey. If the apple farmer's use of pesticides harms the bee population and reduces the honey farmer's production, the honey farmer could demand compensation from the apple farmer. If transaction costs are low, the two farmers could negotiate a solution that is mutually beneficial, such as the apple farmer paying for the honey farmer to relocate their bees to a safer area. In this scenario, the assignment of property rights is not as important as the ability of the two parties to negotiate and reach an agreement that maximizes their total welfare.
Overall, the Coase theorem highlights the importance of considering the broader impacts of economic decisions and recognizing that efficiency depends on maximizing the overall benefits to all parties involved, rather than just focusing on individual outcomes.
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The perimeter of a square is 12 feet less than five times its side length. Find the perimeter of the square.
Answers
The square's perimeter is its four sides because all of its sides are equal. The square's 12 cm perimeter is what we are given, hence the measurement is perimeter.
How do you calculate a square's side length using the perimeter?Pictures for 12 feet less than five times the length of the sides make up a square's perimeter. Recognize the square's perimeter.
P = 4 side is a formula for calculating a square's perimeter. The side length of the square is determined by rearranging the previous formula to side = P/4 when the perimeter is known. So, by multiplying the perimeter by 4, it is possible to determine the length of a square's sides.
The square's perimeter is its four sides because all of its sides are equal. The square's 12 cm perimeter is what we are given, hence the measurement is perimeter.
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You randomly pull two bills, what is the probability that they are both $20?
Answers
Answer:
Depends on the pool you are pulling them from.
There are currently 11 different denomination accessible.
That would be 1 out of 11.
But considering that 4 of those bills are uncommon, the odds become 1 out of 7
Then to pull 2 of the same would mean you multiply 1/11 by 1/11 = 1/121
for the 1/7 it would become 1/49
the speed of cars on a stretch of road is normally distributed with an average 51 miles per hour with a standard deviation of 5.9 miles per hour. what is the probability that a randomly selected car is violating the speed limit of 50 miles per hour?
Answers
The probability that a randomly selected car is violating the speed limit of 50 miles per hour is 0.43.
To find the probability that a randomly selected car is violating the speed limit of 50 miles per hour, we need to find the probability that the speed of the car is greater than 50 miles per hour. Since the speed of cars on the road is normally distributed with an average of 51 miles per hour and a standard deviation of 5.9 miles per hour, we can use the standard normal distribution table to find the probability.
First, we need to convert the speed limit of 50 miles per hour to a z-score. This is done by using the formula:
z = (x - μ) / σ
where x is the observed value, μ is the mean, and σ is the standard deviation.
z = (50 - 51) / 5.9
z = -0.169
To find the probability of a car going faster than 50 mph, we need to find the probability that z is greater than -0.168. This probability can be found using a standard normal distribution table. The probability that a car goes over 50 mph is around 0.432945.
So the probability that a randomly selected car is violating the speed limit of 50 miles per hour is 0.43.
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Jim will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $ 59 and costs an additional$0.13 per mile driven. The second plan has an initial fee of $46 and costs an additional 0.17 per mile driven.
Answers
Answer:This problem is about linear equations. We assume Dale drive X miles, and the total cost is $Y, then we can get:
Plan I: Y=38+0.11X
Plan II: Y=49+0.07X
When both plans cost the same, 38+0.11X=49+0.07X. We will get X = 275miles, and Y=$68.25
Step-by-step explanation:
The amount y that a walrus eats is
proportional to its weight x. A 4000 pound
walrus eats 20 pounds each day. How much does
a 2000 pound walrus eat each day?
Answers
Answer: The correct answer is
10 Pounds
Step-by-step explanation:
10lb
4000 = 20
2000 = 10
A set of data is normally distributed with a mean of 39 and a standard deviation of 8. Within what range should you expect 68% of that data to fall?
Answers
If set of data is normally distributed with a mean of 39 and a standard deviation of 8, we can expect 68% of the data to fall within the range of 31 to 47.
For a normal distribution, we can use the Empirical Rule to estimate the percentage of data within a certain range. According to the Empirical Rule, 68% of the data falls within one standard deviation of the mean in either direction.
So, if the mean is 39 and the standard deviation is 8, we can expect 68% of the data to fall within the range of:
(39 - 8) to (39 + 8)
which simplifies to:
31 to 47
Therefore, we can expect 68% of the data to fall within the range of 31 to 47. It's important to note that this only applies to data that is normally distributed, and may not hold true for other types of distributions.
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Which is an equivalent expression for (5^2 • 3^4)^3?
15^18
5^6 • 3^12
5^2 • 3^12
5^5 • 3^7
Answers
Answer:
answer 2
Step-by-step explanation:
3*4=12
Answer:
B. 5^6 x 3^12
Step-by-step explanation:
(5^2 x 3^4)^3 =
5 x 5 x 3 x 3 x 3 x 3 =
25 x 81 =
2025
2025^3 =
8,303,765,625
Option B is correct because,
5^6 x 3^12 =
5 x 5 x 5 x 5 x 5 x 5 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 =
15,625 x 531,441 =
8,303,765,625
is y = -x a proportional relationship
Answers
Answer:
For any proportional relationship, k=yx (such as a line that passes through the origin). Find the equation of the line by solving for y in the constant of proportionality equation. This equation y=kx is another representation of a proportional relationship.
Step-by-step explanation:
Answer:
Yes kdsjsbahajajsjsbsbsbsnsn
On one day at a local minigolf course, there were 320 customers who paid a total of $2,900. If the cost for a child is $7 per game and the cost for an adult is $10 per game, write a system of equations to model this scenario, where x represents the number of children and y represents the number of adults who played that day.
Answers
Answer: We can write a system of equations to model this scenario using the information given.
Let x represent the number of children who played minigolf that day, and let y represent the number of adults who played minigolf that day.
The first equation represents the total number of customers, which is the sum of the number of children and the number of adults.
x + y = 320
The second equation represents the total amount of money earned, which is the product of the number of children playing and the cost per child's game plus the product of the number of adults playing and the cost per adult's game.
7x + 10y = 2900
So the system of equations that models this scenario is:
x + y = 320
7x + 10y = 2900
We can use this system of equations to find the number of children and adults who played minigolf that day, given the total number of customers and total amount of money earned. By solving this system of equations we can find the values for x and y.
Step-by-step explanation:
Para racionalizar el denominador de la fracción 6−2√3+5√
se requiere:
A.
multiplicar el denominador por 3−5√
B.
multiplicar numerador y denominador por 3−5√
C.
multiplicar numerador y denominador por 3+5√
D.
multiplicar numerador y denominador por 6+2√
Answers
We need to multiply the numerator and denominator by 3-√5 to rationalize the denominator of the fraction. Therefore, the correct answer is option B
To rationalize the denominator of the fraction 6−2√3+√5, we need to eliminate any radicals present in the denominator. We can do this by multiplying both the numerator and denominator by an expression that will cancel out the radicals in the denominator.
In this case, we can observe that the denominator contains two terms with radicals: -2√3 and √5. To eliminate these radicals, we need to multiply both the numerator and denominator by an expression that contains the conjugate of the denominator.
The conjugate of the denominator is 6+2√3-√5, so we can multiply both the numerator and denominator by this expression, giving us:
(6−2√3+√5)(6+2√3-√5) / (6+2√3-√5)(6+2√3-√5)
Simplifying the numerator and denominator, we get:
(6 * 6) + (6 * 2√3) - (6 * √5) - (2√3 * 6) - (2√3 * 2√3) + (2√3 * √5) + (√5 * 6) - (√5 * 2√3) + (√5 * -√5) / ((6^2) - (2√3)^2 - (√5)^2)
This simplifies to:
24 + 3√3 - 7√5 / 20
Therefore, the correct answer is option B.
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Anthony plants flowers from seed and each day measures the height of the flowers compared to the soil line. He records his measurements in a scatter plot. Anthony calculates the equation of the least squares regression line: Predicted Height =0.56 ⋅ Days in Soil − 3.16 Use the drop-down menus to complete the statements below about what this linear model tells you about the height of a flower.
Answers
From the equation of the least squares regression line, we can say that the height of the flower compared to the soil line, in the beginning, is 3.16 units and it grows by 0.56 units each day.
What is an equation?A mathematical equation is a formula that uses the equals symbol (=) to connect two expressions and express their equality. Two expressions joined by an equal sign form a mathematical statement known as an equation. The expression on the left and the expression on the right is shown to be equal in relation to one another.
LHS = RHS (left-hand side = right-hand side) appears in all mathematical equations. You can solve equations to determine an unknown variable's value, which corresponds to an unknown quantity. It is not an equation if there is no "equal to" symbol in the statement. It will be taken into account as an expression.
Given,
The predicted height = 0.56
Days in soil = 3.16
The y-axis of the plot is the height of the line compared to the soil line.
The x-axis gives the number of days.
from the equation of the least squares regression line, we get the above predicted height and the days in the soil.
y = mx+b is the equation of a line.
Then, we can say that,
m = slope = 0.56
b = y-intercept = 3.16
Therefore from the equation of the least squares regression line, we can say that the height of the flower compared to the soil line, in the beginning, is 3.16 units and it grows by 0.56 units each day.
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Solve the following system of equations. Show all work and solutions.
y = 3x2 + 6x + 4
y = −3x2 + 4
Answers
Solving 2 quadratic equations we get (0,4) and (-1.1) are common points.
What are Quadratic equations?The definition of a quadratic as a second-degree polynomial equation demands that at least one squared term must be included. It also goes by the name quadratic equations.
\(Ax^2 + bx + c = 0\), where x is an unknown variable and a, b, and c are numerical coefficients, is the quadratic equation's general form. An example of a quadratic equation is \(x^2 + 2x + 1\). Here, a is greater than zero because if it equals zero, the equation will no longer be quadratic and will change to a linear equation, such as \(bx+c=0\).
As a result, we cannot refer to this equation as a quadratic equation.
Another name for the terms a, b, and c is quadratic coefficients.
Solutions of quadratic equation are called Zeroes or Roots.
Calculation:\(y=3x^2+6x+4\\y=-3x^2+5\\\)
Equating y of both equations
\(3x^2+6x+4=-3x^2+4\\6x^2+6x=0\\x(x+1)=0\\x=0,-1\)
\(y=-3(0)^2+4=4\\y=-3(-1)^2+4=1\)
⇒(0,4) and (-1.1)
Solving 2 quadratic equations we get (0,4) and (-1.1) are common points.
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a fruit basket contains apples, oranges, and tangerines in the ratio 3:2:5, respectively. what is the total number of apples, oranges, and tangerines in the fruit basket?
Answers
The total number of apples, oranges, and tangerines in the fruit basket is in the ratio 10 or 10x
In mathematics, a ratio is a comparison of two or more numbers that indicates their sizes in relation to each other.
A ratio compares two quantities by division, with the dividend or number being divided termed the antecedent and the divisor or number that is dividing termed the consequent.
We know that : the ratio of apples : oranges : tangerines = 3 : 2 : 5.
The total number of apples, oranges, and tangerines in the fruit basket is the total number of ratio, that is 3 + 2 + 5 = 10.
Because of the question is not contain information about the number of pieces, we can describe the dividend with x (or unknown value). So, the total number of apples, oranges, and tangerines in the fruit basket with ratio, that is 10 or 10x.
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is a numerical measure of the outcome to a probability experiment, so its value is determined by chance. Random variables are typically denoted using capital letters such as X.
Answers
A random variable (denoted as X) is a numerical measure of the outcome of a probability experiment, where the value is determined by chance.
Yes, a random variable is a numerical measure of the outcome to a probability experiment, and its value is determined by chance. Random variables are used to represent the possible outcomes of an experiment and can be discrete or continuous. They are typically denoted using capital letters such as X.
The probability of a random variable taking on a certain value can be calculated using probability theory and statistical methods. In this context, "measure" refers to the quantification of an outcome, "probability" indicates the likelihood of that outcome occurring, and "experiment" represents the process through which the outcome is observed.
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Graph the function.
g(x) = 1/2 • 2^x
Answers
g(x) = 1/2 . 2^x = x=3 , y=1
Can someone please explain c?
Q1.
The roots of the quadratic equation
x2 + 2x - 5 = 0
Are a and B
(a) Write down the value of a + ß and the value of aß.
(b) Calculate the value of a2 + B2
(c) Find a quadratic equation which has roots a3 + 1 and aß3 + 1.
Answers
Answer:
Idek
Step-by-step explanation:
Is this correct please give correct answer but no links
Answers
Answer:
I give answers I think their correct but as humans we make mistakes so there may be errors
Find the value of x.
Answers
Answer:
d
Step-by-step explanation:
7x + 2 and 10x - 9 are same- side interior angles and sum to 180° , that is
7x + 2 + 10x - 9 = 180
17x - 7 = 180 ( add 7 to both sides )
17x = 187 ( divide both sides by 17 )
x = 11 → d
Answer:
x = 11
between two parallel lines the angle is 180°
solve:
→ 7x + 2° + 10x - 9° = 180°
→ 10x + 7x +2° - 9° = 180° [ collect variables ]
→ 17x -7 = 180° [ simplify ]
→ 17x = 180° + 7° [ change sides ]
→ 17x = 187° [ divide both sides by 17 ]
→ x = 11
For which system of linear inequalities are all solutions in Quadrant 1
?
x>2 and y> 3
x>2 and y<3
x<2 and y> 3
x<2 and y<3
Answers
Answer: \(x > 2\) and \(y > 3\)
Step-by-step explanation:
For a point \((x,y)\) to lie in Quadrant 1, \(x > 0\) and \(y > 0\).
The bounds placed on \(x\) and \(y\) in the first option are stricter than these bounds, and thus all solutions to this system of inequalities will lie in Quadrant 1.
I WILL GIVE BRAINLIEST TO RIGHT ANSWER
write an equation of the line in a slope intercept form of a line that passes through (5,7) and (4,4)
Answers
Answer:
y = 3x - 8
Step-by-step explanation:
passes through (5, 7) and (4, 4)
Find slope:
(7 - 4) / (5 - 4)
= 3/1
= 3
This is your slope.
Now plug in a set of coordinates.
y = 3x + b
7 = 3(5) + b
7 = 15 + b
b = -8
Your equation is: y = 3x - 8
Check your work by plugging in the second coordinate pair.
y = 3x - 8
4 = 3(4) - 8
4 = 12 - 8
4 = 4
Your solution is correct.
What are 3 of the 6 essential principles in Jefferson's Inaugural Address?
GIVE ME 3 OF THEM PLEASEEE
Answers
Answer:
He said that the nation had "room enough for our descendants to the thousandth and thousandth generation" and that his administration would pursue "honest friendship with all nations, entangling alliances with none." He affirmed that America's future depended upon "the preservation of the General government
Step-by-step explanation:
Rina is 6x + 3:8 feet tall and Ryan is 5x + 1/8 feet tall. How much taller is Rina than Ryan?
Answers
Answer: Rina is \(x+\dfrac{1}{4}\) feet taller than Ryan.
Step-by-step explanation:
Given, the height of Rina = \(6x+\dfrac{3}{8}\) feet
The height of Ryan = \(5x+\dfrac{1}{8}\) feet
To find : How much taller is Rina than Ryan?
Clue : Rina is taller than Ryan.
For that , we need to check the difference of the height between Ryan and Rina
i.e. (height of Rina) - (height of Ryan)
\(=6x+\dfrac{3}{8}-(5x+\dfrac{1}{8})\\\\=6x+\dfrac{3}{8}-5x-\dfrac{1}{8}\\\\=x+\dfrac{3-1}{8}\\\\=x+\dfrac{2}{8}\\\\=x+\dfrac{1}{4}\)
Hence, Rina is \(x+\dfrac{1}{4}\) feet taller than Ryan.
Solve the system by graphing.
y=-3x + 3
y= 1/2x-4
Answers
Answer:
y=58°
Step-by-step explanation:
calculator
the slope of the line that passes through the points (7,1) and (x,4). What is the value of w?
Answers
Answer:
bbb
Step-by-step explanation:
bbb idk sorry x
A
shift worker clocks in at 1730 hours and clocks out at 0330 hours.
How long was the shift?
Answers
To calculate the duration of the shift, you need to subtract the clock-in time from the clock-out time.
In this case, the shift worker clocked in at 1730 hours (5:30 PM) and clocked out at 0330 hours (3:30 AM). However, since the clock is based on a 24-hour format, it's necessary to consider that the clock-out time of 0330 hours actually refers to the next day.
To calculate the duration of the shift, you can perform the following steps:
1. Calculate the duration until midnight (0000 hours) on the same day:
- The time between 1730 hours and 0000 hours is 6 hours and 30 minutes (1730 - 0000 = 6:30 PM to 12:00 AM).
2. Calculate the duration from midnight (0000 hours) to the clock-out time:
- The time between 0000 hours and 0330 hours is 3 hours and 30 minutes (12:00 AM to 3:30 AM).
3. Add the durations from step 1 and step 2 to find the total duration of the shift:
- 6 hours and 30 minutes + 3 hours and 30 minutes = 10 hours.
Therefore, the duration of the shift was 10 hours.
triangle d has been dilated to create triangle d 4, 3, 1/3, 1/4
Answers
Triangle D has been dilated to create Triangle D' with scale factors of 4, 9, and 4/3 for the corresponding sides.
To understand the dilation of Triangle D to create Triangle D', we can examine the ratio of corresponding sides.
Given that the corresponding sides of Triangle D and Triangle D' are in the ratio of 4:1, 3:1/3, and 1/3:1/4, we can determine the scale factor of dilation for each side.
The scale factor for the first side is 4:1, indicating that Triangle D' is four times larger than Triangle D in terms of that side.
For the second side, the ratio is 3:1/3. To simplify this ratio, we can multiply both sides by 3, resulting in a ratio of 9:1. This means that Triangle D' is nine times larger than Triangle D in terms of the second side.
Finally, the ratio for the third side is 1/3:1/4. To simplify this ratio, we can multiply both sides by 12, resulting in a ratio of 4:3. This means that Triangle D' is four-thirds the size of Triangle D in terms of the third side.
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