Answer:
19
Step-by-step explanation
This is simple
I will teach you a simple technique
Count them, don't count the -8
-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
You are just subtracting, but instead counting.
I said not to count -8, because normally in subtraction, we normally don't count the number we are subracting.
for example
8 - 7 = 1
so counting technique
8 - 7, 6, 5, 4, 3, 2, 1
there are 7 numbers, if i didn't count the 8
so it is right.
hope you understand :-)
Given: g(a) = 3a +2 and f(a)= a2 - 1
Find: f(a-1)= g(a-1)
Answer:
a=-2
Step-by-step explanation:
Though I am unsure if we were to find a but yeah, hope it's correct
Which of the following distributions has a mean that varies? I. The population distribution II. The distribution of sample data III. The sampling distribution of the sample mean
O ll only
O IIl only
O I only
O all three distributions
O II and III
The following distributions has a mean that varies
II. The distribution of sample data
III. The sampling distribution of the sample mean
The correct answer is option v) II and III."
Here, we have,
In the context of statistical distributions:
I. The population distribution refers to the distribution of a specific variable within the entire population. The mean of the population distribution which is fixed and does not vary.
II. The distribution of sample data refers to the distribution of a variable within a specific sample. The mean of the sample data can vary from one sample to another.
III. The sampling distribution of the sample mean refers to the distribution of sample means taken from multiple samples of the same size from a population. The mean of the sampling distribution of the sample mean is equal to the population mean, but the individual sample means can vary from sample to sample.
Therefore, the mean varies in both the distribution of sample data (II) and the sampling distribution of the sample mean (III), but not in the population distribution (I).
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In Milgram's first study of obedience, the majority of teachers initially complied but refused to deliver more than slight levels of shock.
In Milgram's first study of obedience, participants were assigned the role of 'teacher' and were instructed to administer electric shocks to a 'learner' whenever they answered a question incorrectly. The shocks ranged from mild to severe, with the highest level labeled as 'XXX.' The learner was actually an actor, and no real shocks were administered.
The study found that the majority of teachers initially complied with the experimenter's orders and delivered shocks, but they refused to deliver more than slight levels of shock. This suggests that while they were willing to follow the instructions to some extent, they had moral reservations about causing significant harm to another person.
It is important to note that the study has been criticized for ethical concerns and the potential psychological harm it may have caused to participants. However, it remains a significant contribution to our understanding of obedience and the power of authority figures.
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A sample of 40 provided a sample mean of 26.2. the population standard deviation is 6. Find the value of the test statistic. (round your answer to two decimal places.) (b) find the p-value. (round your answer to four decimal places.) p-value
Answer:
a. 1.26
b. 0.1038
Step-by-step explanation:
The p-value is 1.0000 (rounded to four decimal places). This means that we fail to reject the null hypothesis, which in this case would be that the population mean is equal to the sample mean of 26.2.
To find the test statistic, we need to use the formula:
test statistic = (sample mean - population mean) / (standard deviation / square root of sample size)
Since the population standard deviation is given as 6, we can plug in the values:
test statistic = (26.2 - population mean) / (6 / √40)
To find the population mean, we can use the fact that the sample mean is an unbiased estimator of the population mean, so:
population mean = sample mean = 26.2
Plugging in the values, we get:
test statistic = (26.2 - 26.2) / (6 / √40) = 0
The test statistic is 0.
To find the p-value, we need to use a t-distribution table or calculator. Since we have a sample size of 40, we can use the t-distribution with 39 degrees of freedom.
Using a calculator or table, we can find that the area to the right of 0 (since the test statistic is 0) is 0.5. Since this is a two-tailed test, we need to double this value to get the p-value:
p-value = 2 * 0.5 = 1.0000
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is y=-x+2 a linear equation
Answer:
yes it is
Step-by-step explanation:
it is linear because the number can fall on both the x and y axis
Answer:
y = -x + 2 is a Linear Equation.
Step-by-step explanation:
The equation is in slope-intercept form of a linear function.
Slope-intercept form: y = mx + b ---> y = y, -x = mx, b = 2
jennifer worked 15 hours last week and made 7.85 per hour. if her paycheck was for 102.75 how much was withheld from her gross pay for taxes
Answer:15
Step-by-step explanation:
You can find 0.5% of a number by multiplying the number by 5/100: true or false explain your answer
it is true that 0.5% of 200 is 10.
How can we determine if this is true?True.
To find 0.5% of a number, we need to multiply the number by 0.5/100, which can be simplified to 5/100 or 1/20. This is because "percent" means "per hundred", so 0.5% is equivalent to 0.5 per 100 or 0.5/100.
Multiplying the number by 5/100 is the same as multiplying it by 0.5/100, so it will give us the correct result.
For example, if we want to find 0.5% of 200, we can multiply 200 by 5/100 or 0.5/100:
\(0.5% of 200 = 200 \times 5/100 = 10\)
Therefore, it is true that 0.5% of 200 is 10.
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To investigate, a researcher measures the heights and metacarpal lengths of 200 adults. In making the scatterplot, the researcher should:
To investigate, a researcher measures the heights and metacarpal lengths of 200 adults. In making the scatterplot, the researcher should ensure that the scales on the x-axis and y-axis are the same.
The scatter plot is a graphical representation of the relationship between two variables. The heights and metacarpal lengths of the 200 adults are two variables, and a scatterplot can be used to illustrate their connection.
When making a scatterplot, the researcher should make sure that the scales on the x-axis and y-axis are identical. This way, each point on the plot reflects an accurate representation of the relationship between the two variables. The scatter plot is used to examine the association between two continuous variables. The horizontal axis represents the values of one variable, while the vertical axis represents the values of the other variable.
In summary, when making a scatter plot, the researcher should ensure that the scales on the x-axis and y-axis are the same. The horizontal axis shows the values of one variable, while the vertical axis shows the values of the other variable.
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Can I get some help please? ASAP
Solve for X. for both equations pleaseee
Answer:
\(9. \: \boxed{ \tt{x = 7}} \\10. \: \boxed{ \tt{x = 6}} \)
Step-by-step explanation:
\(quest \: 9 \to \\ \frac{5 + x}{32} = \frac{9}{33 - 9} \\ 24(5 + x) = (32)(9) \\ 5 + x = \frac{(32)(9)}{24} \\ 5 + x = 12 \\ x = 12 - 5 \\ \boxed{ x = 7} \\ \\ quest \: 10 \to \: \\ \frac{30 - (4x - 4)}{4x - 4} = \frac{18 - 12}{12} \\ \frac{34 - 4x}{4x - 4 } = \frac{6}{12} = \frac{1}{2} \\ 2(34 - 4x) = 4x - 4 \\ 68 - 8x = 4x - 4 \\ 68 + 4 = 4x + 8x \\ 72 = 12x \\ x = \frac{72}{12} = 6 \\ \boxed{x = 6}\)
How many solutions exist for the system of equations graphed below?
Which equation represents the line that passes through the point (3,-1) and is perpendicular to the graph of x+4y=11
4x - y = 13 Equation represents the line that passes through the point (3,-1) and is perpendicular to the graph of x+4y=11
According to the question,
Its given that
The required line is passing through (3, -1)
And is perpendicular to line x + 4y = 13
Let required line be (y-y') = m'(x - x') ----(1)
Where m' is slope of required line
The given line is x + 4y = 13
Slope of this line be m =
=> 4y = 13 - x
=> y = 13/4 - x/4
m = -1/4
You should know that if two lines are perpendicular to each other than the product of their slope is always -1
Therefore , m × m' = -1
=> -1/4 × m' = -1
Multiplying by -4
=> m' = 4
Substituting the value in equation (1)
=> (y - (-1)) = 4 ( x - 3)
=> y + 1 = 4x - 12
=> 4x - y = 13 is our required equation
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Plot the ordered pair and state which quadrant or on which axis the point lies
Answer:
Explanation:
Given the ordered pair (-2, 4 1/2), where x = -2 and y = 4 1/2 = 9/2 = 4.5. Plotting this point, we'll have;
Note that quadrants are numbered in an anti-clockwise manner with the top right portion of the graph as Quadrant I. Looking at the plotted point, we can see that it lies in Quadrant II.
16 of the 28 dogs at the shelter are purebred. What percent of the dogs are purebred? Round to a whole number
Answer:
57.14%
Step-by-step explanation:
So to get this answer I just had to find out what percent 16 was of 28. So 57.14% of the dogs are purebred.
in a certain company 120 of the employees are men. what is the total number of employees if 5 out of every 8 employees are men?
Answer:
There are 192 employees in the company.
Step-by-step explanation:
Let x be the total number of employees
Use ratio and proportion
\(\frac{120}{x} =\frac{5}{8} \\5x = 120(8)\\5x = 960\\\frac{5x}{5} = \frac{960}{5} \\x = 192\)
x = 192
Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
a.
10
d.
4 5
b. 4 5
I
s 100
10
4
8
--
8 10
415
이
00
I
C. 10 85
815
I
10
I
2/5
I
211
552
415
Mark this and return
Next
Submit
The ratio of corresponding sides for the given similar triangles is 2/5.
In the given options, the ratio of corresponding sides is provided for each set of similar triangles. Let's analyze each option to determine the correct ratio:
a. 10
This option only provides a single number and does not specify the ratio of corresponding sides. Therefore, it is not the correct answer.
b. 4/5
This option provides the ratio 4/5 for the corresponding sides of the similar triangles. However, the ratio can be simplified further.
To simplify the ratio, we divide both the numerator and denominator by their greatest common divisor (GCD). In this case, the GCD of 4 and 5 is 1.
Dividing 4 and 5 by 1, we get:
4 ÷ 1 = 4
5 ÷ 1 = 5
Therefore, the simplified ratio is 4/5.
c. 10/85
This option provides the ratio 10/85 for the corresponding sides of the similar triangles. However, this ratio cannot be simplified further, as 10 and 85 do not have a common factor other than 1.
Therefore, the correct ratio of corresponding sides for the given similar triangles is 2/5, as determined in option b.
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50:10 in simplest form
Answer:
5/1 or 5:1
Step-by-step explanation:
Answer:
5:1
Step-by-step explanation:
Divide by ten
Will give brainlist! I need the fraction, decimal, and percentage solution.
Answer:Fraction: 81/100 Decimal: 0.81 Percentage: 81%
Step-by-step explanation:
Two small metal spheres are 35. 1 cm apart. The spheres have equal amounts of negative charge and repel each other with forces of magnitude 0. 0360 n. What is the charge on each sphere?
Two small metal spheres are 35. 1 cm apart. The spheres have equal amounts of negative charge and repel each other with forces of magnitude 0. 0360 n. The charge on each sphere \(Q = 1.4 \times 10^{-12}\) c.
What is coulombs law?According to coulombs law force between two charges is given by
\(F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}\)
Here, R is the distance between both the charges Q and q.
Two small metal spheres are 35. 1 cm apart.
The spheres have equal amounts of negative charge and repel each other with forces of magnitude 0. 0360 n.
We have given force F =0.036 N
R is the distance between both the charges which is given as 25 cm
So
\(F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}\)
\(0.036 = \dfrac{1}{4\times 3.14\times 8.85\times 10^{-12} }(\dfrac{Q^2}{35. 1})\)
\(Q = 1.4 \times 10^{-12}\) c
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I have found the area but I'm not sure how to find the perimeter.
Answer:
20+20+24+24=88
88/2=44
88+44=132
Step-by-step explanation:
If you split it so there is a rectangle and a triangle, you find the perimeter of the rectangle then divide it in half.
Blake earns an hourly wage of $15.75 and also receives a $1200 bonus at the end of each year. If x represents the number of hours Blake works in a given year, which equation can be used to determine his annual income?
Answer: y=mx+b
Step-by-step explanation: Y= 15.75x + 1200
Answer: y=mx+b
Step-by-step explanation: Y= 15.75x + 1200
help anyone? i will make you a brainliest.
Answer: can i have the brains? ;)
Step-by-step explanation:
Taylor currently earn $24. 00 an hour at her job. Thank to her hard work, her bo i going to give her a 15% raie. How much will he earn each hour after the raie?
Answer:
Taylor will earn $27.60 after the raise.
Step-by-step explanation:
If you take $24.00 and multiply it by $1.15, your answer should be $27.60. Therefore, this is the answer to your question.
Hopefully this helps, did the best I could!
PLSS HELPPP THANK YOU!!! Given: f(x) = 2x2 + x - 1 Find f(1/2). Only enter the numerical value as your answer.
Answer:
The answer is 0.
I hope it will help you
What is the average temperature of 2.56, 2.02, and 2.7
Answer:
2.42666666666666666
Step-by-step explanation:
2.56+2.02+2.7 = 7.28
7.28/3 = 2.426666666
Construction the augmented matrix that corresponds to the following system of equations
SOLUTION:
We want to construct the augmented matrix for these equations;
\(\begin{gathered} 4x+\frac{4y-z}{3}=2 \\ 2(3z-7x)+y-3=1 \\ x-(7+z)=6y \end{gathered}\)We start by writing the equations with variables on the right and constants on the left; multiplying equation 1 by 3, we have;
\(12x+4y-z=6\)Expanding equation 2 and collecting like terms, we have;
\(\begin{gathered} 6z-14x+y-3=1 \\ -14x+y+6z=4 \end{gathered}\)Expanding equation 3 and collecting like terms, we have;
\(\begin{gathered} x-7-z=6y \\ x-6y-z=7 \end{gathered}\)Writing the 3 equations, we have;
\(\begin{gathered} 12x+4y-z=6\text{ }i \\ -14x+y+6z=4\text{ }ii \\ x-6y-z=7\text{ }iii \end{gathered}\)Putting this in augmented matrix form we have;
\(\begin{bmatrix}{12} & {4} & {-1} & {6} \\ {-14} & {1} & {6} & {4} \\ {1} & {-6} & {-1} & {7} \\ {} & {} & {} & {}\end{bmatrix}\)Which is the final answer
explain how to find the originle and the new dimensions of an object when the scale change
In general, the origin of the new object is the same because the scalation is made by using the origin of the previous object as a fixed point.
The dimensions of the new object are found simply by multiplying each coordinate of special points of the object by the scale factor.
For example, if the points (x1,y1), (x2,y2) and (x3,y3) are vertices of an object with triangle shape, the new object will have the coordinates
(k*x1,k*y1), (k*x2,k*y2) and (k*x3,k*y3) where the scale factor is k.
if you can help, please do
The graph of the compressed function is graph A.
Which expression shows the graph of f(4x)?Remember that for any function f(x), we define a horizontal compression of scale factor k (whre we must have k > 1) is defined as:
f(k*x)
Here we have f(4x), so this is an horizontal compression of scale factor 4.
Notice that the original function goes from x = -4 to x = 4
Then the compressed function must go from x = -4/4 = -1 to x = 4/4 = 1
Which is what we can see in graph A, so that is the correct option.
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how to calculate number of tiles needed for a room
To calculate the number of tiles required for a room, you need to know the dimensions of the room and the size of the tiles.
How to calculate the number of tiles needed for a room?To calculate the number of tiles needed for a room, follow these steps:
Measure the length and width of the room in meters or feet.Determine the size of the tiles you plan to use in either square meters or square feet.Calculate the area of the room by multiplying the length by the width.Divide the total area of the room by the area of one tile to determine the number of tiles needed.Round up the result to the nearest whole number to account for any extra tiles needed due to cuts or replacements.To calculate the number of tiles required for a room, you need to know the dimensions of the room and the size of the tiles. By measuring the length and width of the room, you can calculate the total area of the floor or wall that needs to be tiled. This is done by multiplying the length by the width.
Next, you should determine the size of the tiles you plan to use. This could be in square meters or square feet depending on your measurement preference. Knowing the area of one tile will allow you to calculate how many tiles are needed to cover the entire room. You can do this by dividing the total area of the room by the area of one tile.
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Pls help I have to have this done in 5 minutes
bitwduQUEd
Step-by-step explanation:
Which function is nonlinear?
mark as brilliant! help
Answer:
I believe the answer is C. Please let me know if I am wrong
Step-by-step explanation:
Share 350cm in the ratio 3 : 7
Answer:
105cm & 245cm
Step-by-step explanation:
\(3x+7x=350\\10x=350\\x=35\\\\\\3(35)=105\\7(35)=245\)