Answer: (B)
Step-by-step explanation: Hope this helped :)
The Ridgeport school district collected data about class
size in the district. The table shows the class sizes for five
randomly selected kindergarten and seventh-grade
classes
Mean Mean absolute
deviation
Number of students in randomly
selected class
Kindergarten 19, 19.23, 30, 19
Seventh 27, 33, 34, 30, 31
grade
22
3.6
31
2.0
sed on these data, which statement is true?
A. The average size of a seventh-grade class is larger and varies
more than that of a kindergarten class.
B. The recommended number of students in a kindergarten class is
22.
C. Every seventh-grade class has 9 more students than a
kindergarten class.
D. The average size of a seventh-grade class is larger but varles less
than that of a kindergarten class.
Answer:
Step-by-step explanation:
The answer is A
Answer:
A.
Step-by-step explanation:
Shelton mix 1 1/4 cups of purple cabbage and
2 3/8 cups of lettuce to make a big salad. Each day he eats 3/4 of a cup is salad.
Answer:
Its the bottom one.
Step-by-step explanation:
Answer: ( 1 1/4 + 2 3/8 ) 3/4
Step-by-step explanation:
This is the answer
What is the value of the following expression? 5*5*5*5 (2*1000)/400-5
Answer:
3164.56
Step-by-step explanation:
5*5*5*5(2*1000)/400-5
625(2000)/395
1250000/395
3164.56
Pleaseeeeeeeeeeeee help
Answer:
Step-by-step explanation:
i cant see good
Answer:
I think it would be commutative property
Step-by-step explanation:
the commutative property states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer. The commutative property only works with addition and multiplication.
The population of Boomtown is currently 3000 and expected to grow by 2.3% over the
next year. What will its population be by then?
The population of Dullsville, on the other hand, is currently 13000 and expected to
decrease by 4.1% over the next year. What will its population be by then?
Answer:
a) The Expectation of the Population to grow in the next year
= 3069
b) The Expectation of the Population decrease in the next year
= 12,467
Step-by-step explanation:
Explanation:-
a)
The population of Boom town is currently 3000
Given expected to grow by 2.3 % over the next year
= \(3000 X \frac{2.3}{100} = 69\)
= 69
The Expectation of the Population growth in the next year
= 3000 +69 = 3069
b)
The population of town is currently 13000
Given expected to grow by 4.1 % over the next year
= \(13000 X \frac{4.1}{100} = 533\)
The Expectation of the Population decrease in the next year
= 13000 - 533 = 12,467
Calcululate relative frequency and cumulative frequency. Round relative frequency to two decimal places. X f Relative Frequency Cumulative Frequency 5 5 4 7 3 8 2 2 1 4
Answer:
Frequency Relative Frequency Cumulative Frequency
5 0.1220 0.1220
5 0.1220 0.2439
4 0.0976 0.3415
7 0.1707 0.5122
3 0.0732 0.5854
8 0.1951 0.7805
2 0.0488 0.8293
2 0.0488 0.8780
1 0.0244 0.9024
4 0.0976 1.0000
41
Step-by-step explanation:
Frequency Relative Frequency Cumulative Frequency
5 0.1220 0.1220
5 0.1220 0.2439
4 0.0976 0.3415
7 0.1707 0.5122
3 0.0732 0.5854
8 0.1951 0.7805
2 0.0488 0.8293
2 0.0488 0.8780
1 0.0244 0.9024
4 0.0976 1.0000
41
1
2
3
4
5
6
8
9
10
Which is the graph of y = 3x + 1 - 2?
4
2
2 4 6 8 10 x
-10 -8 -6
6 -1 -2,-
-2-
Answer:
don't you substitute the the x to find y
A system of equations and its solution are given below. System A x + 6 y = 5 3 x − 7 y = − 35 Solution: ( − 7 , 2 ) Choose the correct option that explains what steps were followed to obtain the system of equations below. System B x + 6 y = 5 − 25 y = − 50 A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A. B. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 3. The solution to system B will not be the same as the solution to system A. C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 7. The solution to system B will not be the same as the solution to system A. D. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -5. The solution to system B will be the same as the solution to system A.
To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.
What is Linear equation ?
Linear equation can be defined as the equation in which the highest degree is one.
First equation of system A multiplied by -3:
(-3)(x+6y=5)
(-3)(x)+(-3)(6)=(-3)(5)
-3x-18=-15
Sum of the second equation of system A and the first equation multiplied by -3:
(-3x-18)+(3x-7y)=(-15)+(-35)
-3x-18+3x-7y=-15-35
-25y=-50
System B
x+6y=5
-25y=-50
Hence, To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.
To learn more about Linear Equation from the given link.
brainly.com/question/29739212
#SPJ1
Calculate the value of 3x³ -2x²- 9x+2 if x= -2
Answer: -12
Step-by-step explanation:
3(-2)^3 - 2(-2)^2 - 9(-2) + 2 = N
3(-8) - 2(4) - 9(-2) + 2 = N
-24 - 8 + 18 + 2 = N
-12 = N
answer all you get brainiest
Step-by-step explanation:
1. 44
2. 26 95
3. 294
4. 126
5. 36.04
6. 52.02
1.7 Basil Yamey is setting up a new business. Before selling anything, he bought a van for £9,000; a
transportable market stall for £1,800; a computer for £280; and an inventory of goods for £11,200. Fie
did not pay in full for his inventory of goods and still owes £5,000 for them. Fie borrowed £8,000 from
Luca Pacioli. After the eventsjust described, and before trading starts, he has £900 cash in hand and
£6,300 in the bank. Calculate the amount of his capital.
Answer:
the amount of Basil Yamey's capital is £16,480.
Step-by-step explanation:
To calculate Basil Yamey's capital, we need to add up the value of his assets and subtract his liabilities.
The value of his assets is:
Van: £9,000
Market stall: £1,800
Computer: £280
Inventory of goods: £11,200
Cash in hand: £900
Money in the bank: £6,300
Total value of assets = £9,000 + £1,800 + £280 + £11,200 + £900 + £6,300 = £29,480
His liabilities are:
Amount still owed for inventory of goods: £5,000
Amount borrowed from Luca Pacioli: £8,000
Total liabilities = £5,000 + £8,000 = £13,000
Therefore, Basil Yamey's capital is:
Capital = Total value of assets - Total liabilities
Capital = £29,480 - £13,000 = £16,480
So the amount of Basil Yamey's capital is £16,480.
Answer:
Basil Yamey's capital is the total amount of money that he has invested in his business. This can be calculated as the sum of the cost of the assets that he has purchased, minus any outstanding debts, plus any cash or cash equivalents he has on hand.
The cost of the assets that Basil has purchased is:
£9,000 (van) + £1,800 (market stall) + £280 (computer) + £11,200 (inventory) = £21,280
He still owes £5,000 for the inventory, so the total cost of the assets minus the outstanding debt is:
£21,280 - £5,000 = £16,280
He borrowed £8,000, so the total amount of his capital is:
£16,280 + £8,000 = £24,280
He also has cash on hand and in the bank:
£900 (cash) + £6,300 (bank balance) = £7,200
So, Basil Yamey's total capital is £24,280 + £7,200 = £31,480.
1. What is the surface area of the sphere below?
12 cm
Answer:
Using 3.14 for pi
SA =1808.64 cm^3
Using the pi button
SA =1809.557368 cm^3
Step-by-step explanation:
The surface area of a sphere is given by
SA = 4 pi r^2
We are given a radius of 12
SA = 4 pi ( 12) ^2
SA = 4 pi * 144
SA = 576 pi
Using 3.14 for pi
SA =1808.64 cm^3
Using the pi button
SA =1809.557368 cm^3
I NEES HELP STATISTICS
If 2x-y=9 and 3x+4y=19, then y=
Answer:
x = 5
y = 1
Step-by-step explanation:
2x - y = 9
3x + 4y = 19
We multiply the first equation by 4
8x - 4y = 36
3x + 4y = 19
11x = 55
x = 5
Now we put 5 in for x and solve for y
2(5) - y = 9
10 - y = 9
-y = -1
y = 1
Let's Check the answer
2(5) - 1 = 9
10 - 1 = 9
9 = 9
So, x = 5 and y = 1 is the correct answer.
Explain in your own words how to find the area of a trapezoid.
Answer:
Step-by-step explanation:
\(Area \ of \ trapezoid = \dfrac{h(a+b)}{2}\)
h - altitude or height between the parallel sides
a , b area the length of the parallel sides
find a polynomial function with the leading coefficient one or negative 1 that has the given zeros multiplicity and degrees 01 multiplicity to 03 multiplicity to degree 4
The function is negative for since the leading coefficient is positive and the highest degree is odd (9) (-inf, -6).
Find a polynomial function ?The function is negative for since the leading coefficient is positive and the highest degree is odd (9) (-inf, -6).
It then crosses the -6 root to turn positive until it again crosses the -2 root.
(It crosses because the odd multiplicity of both roots)
The function remains negative from -2 until root 4, where it crosses into the positive, where it does not cross since there is an even multiplicity.
In light of the aforementioned, only the first option makes sense. because the leading coefficient is positive and the highest degree is odd (9) the function is negative for (-inf, -6).
Then it crosses the -6 root to become positive until it crosses again the root -2.
To learn more about polynomial function refer
https://brainly.com/question/11378074
#SPJ1
Jessie pays $2 for each carnival ride plus $8
on food. His mom told him he could spend at
most $35. Write an algebraic inequality that
shows at most how many rides Jessie can
ride. Let x=number of rides he can get on.
The graph shows the distance (d) in miles that an animal runs at a constant speed in (t) minutes. Which equation represents this situation.
Please solve the picture I just send
The coordinates of point P are (5, -3.5). The equation of the circle is \((x - 5)^2 + (y + 3.5)^2 = 1.5^2\). The equation of KL is y = (-4/3)x + 22/3.
To find the coordinates of point P, we can first find the midpoint of MN, which is the center of the circle. The midpoint formula is given by:
Midpoint = ( (x1 + x2) / 2 , (y1 + y2) / 2 )
Using the coordinates of M(3,-5) and N(7,-2), we can calculate the midpoint:
Midpoint = ( (3 + 7) / 2 , (-5 + -2) / 2 ) = (5, -3.5)
Since the midpoint of MN is the center of the circle, the coordinates of P will be the same as the coordinates of the center, which are (5, -3.5).
i. To determine the equation of the circle in the form of \((x-a)^2\) + \((y-b)^2\) = \(r^2\), we can use the center and any point on the circle. We can use point N(7,-2), which lies on the circle.
The radius of the circle is half the length of PN. Therefore, the radius is given by:
Radius =\(1/2 * \sqrt((7 - 5)^2 + (-2 - (-3.5))^2) = 1.5\)
Substituting the values into the equation, we get:
\((x - 5)^2 + (y + 3.5)^2 = 1.5^2\)
ii. To determine the equation of KL in the form of y = mx + c, we can use the slope of the tangent line.
The slope of KL can be calculated as the negative reciprocal of the slope of the radius line MN. The slope of MN is given by:
m = (y2 - y1) / (x2 - x1) = (-2 - (-3.5)) / (7 - 5) = 1.5 / 2 = 0.75
The negative reciprocal of 0.75 is -4/3, which represents the slope of KL.
Using the point N(7,-2) and the slope -4/3, we can use the point-slope form of a line to find the equation of KL:
y - (-2) = (-4/3)(x - 7)
y + 2 = (-4/3)x + 28/3
y = (-4/3)x + 22/3
For more such questions on circle
https://brainly.com/question/28162977
#SPJ8
suppose that dr. sameer surveys a random sample of 100 cal poly students, and for this sample the mean number of hours per day spent watching tv turns out to be 3.0 hours.
The number 3.01 is a statistic, the symbol for the number 3.01 is μ_hat; and To conduct a simulation-based test of significance, we need to compare the observed mean (3.01 hours) with the hypothesized mean (2.75 hours).
The number 3.01 is a statistic.
The symbol for the mean number of hours per day spent watching TV for the sample of 100 Cal Poly students is μ_hat.
To conduct a simulation-based test of significance, we need to compare the observed mean (3.01 hours) with the hypothesized mean (2.75 hours). The null hypothesis is that the population mean (μ) is equal to 2.75 hours, and the alternative hypothesis is that the population mean is not equal to 2.75 hours.
Steps to find p-value:
1. Calculate the difference between the observed mean and the hypothesized mean: d = μ_hat - 2.75 hours
2. Generate a large number of random samples with the same sample size as the original sample, and calculate the mean of each sample.
3. Calculate the difference between the mean of each sample and the hypothesized mean and store the values in a list.
4. Count the number of differences that are equal to or greater than the difference between the observed mean and the hypothesized mean (d).
5. Divide the count by the total number of simulations to get the p-value. This gives us the probability of getting a sample mean equal to or greater than the observed mean if the null hypothesis is true.
6. Compare the p-value with the significance level (α) to determine whether to reject or fail to reject the null hypothesis. If the p-value is less than α, we reject the null hypothesis and conclude that the data provide evidence that the average number of hours per day Cal Poly students spending the time watching TV is different from 2.75 hours.
If the p-value is greater than α, we fail to reject the null hypothesis and conclude that there is not enough evidence to suggest that the average number of hours per day Cal Poly students spending the time watching TV is different from 2.75 hours.
To know more about simulation, here
https://brainly.com/question/16359096
#SPJ4
--The given question is incomplete; the complete question is
"Reconsider Dr Sameer's research question about how much time Cal Poly students spend watching television. Suppose that Dr Sameer surveys a random sample of 100 Cal Poly students, and for this sample, the mean number of hours per day spent watching TV turns out to be 3.01 hours.
1. Is the number 3.01 a parameter or a statistic?
2. Assign an appropriate symbol to the number 3.01.
3. Describe how you can conduct a simulation‐based test of significance to investigate whether the data provide evidence that the average number of hours per day Cal Poly students spend watching TV is different from 2.75 hours. Be sure to provide details on how one would find a p‐value."--
The average financial aid package for students admitted to a particular college five years ago was $49 comma 250. A student organization plans to investigate whether this average has changed for students admitted this year. Define the population parameter of interest and state the null and alternative hypotheses for this investigation.'
Answer:
The parameter of interest = the average financial aid package for students admitted μ.
Null hypothesis H0; μ = $49,250
Alternative hypothesis Ha; μ ≠ $49,250
Step-by-step explanation:
The population parameter of interest is the parameter in which the data is focused on. For the case above, the parameter of interest is the average financial aid package for students admitted.
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
Let μ represent the average financial aid package for students admitted given as $49,250.
The null hypothesis is that the average financial aid package for students admitted is equal to $49,250.
H0; μ = $49,250
The alternative hypothesis is that the average financial aid package for students admitted is not equal to $49,250.
Ha; μ ≠ $49,250
0.9 + 3.706 + 54.23 + .1637 =
Answer: i think its 58.9997
Step-by-step explanation:
Please help what is the slope of the line?
Answer:
-5/4
Step-by-step explanation:
Let \((x_1,y_1)=(-4,4)\) and \((x_2,y_2)=(0,-1)\). The slope of the line would be:
\(\displaystyle \frac{y_2-y_1}{x_2-x_1}=\frac{-1-4}{0-(-4)}=\frac{-5}{4}=-\frac{5}{4}\)
Answer: -5/4
Step-by-step explanation:
To find the slope between two points, you can use the formula:
Slope = (y2 - y1)/(x2 - x1)
Using the points (0, -1) and (-4, 4), we can substitute the coordinates into the formula:
slope = (4 - (-1))/(-4 - 0)
slope = (4 + 1)/(-4)
slope = 5/-4
Therefore, the slope between the two points is -5/4.
Simplify the given expression. Assume x = 0
-2
20r-3
10x-1
2
4
Answer:
x⁴/4
Step-by-step explanation:
(20x‐³/10x‐1)‐²
= > 20/10 = 2
so = (2x-³/x-¹)-²
= (2/x²)-²....................(a/b)-²=(b/a)²
= (x²/2)²
= x⁴/2
Find the value of the test statistic for testing whether there is a linear relationship between the and the estimated number. Round your answer to two decimal places, if necessary.
the value of the test statistic for testing whether there is a linear relationship between the and the estimated number is 0.3506905
Using a correlation Coefficient calculator, the correlation Coefficient, r for the data = 0.127
The test statistic :
T = r² / √(1 - r²) / (n - 2)
Sample size, n = 10
Hence,
T = 0.127² / √(1 - 0.127²) / (10 - 2)
T = (0.016129 / 0.3506905)
T = 0.3506905
The value of the test statistic to 2 decimal places is 0.35
learn more about of statistic here
https://brainly.com/question/23382433
#SPJ4
Answer the questions below. I need answer for letter (c)
Answer:
C is the answer, please choose the letter C that's the answer
You can buy 2 DVDs for the same price you would pay for 3 CDs selling for 13.60 a piece Complete the explanation of how the price of 1 DVD can be found. Find the total cost of 3 CDs
20.40?? lol I'm just guessing
1. The slant height of a cone is 5cm and the radius of its base is 3cm. Find correct to the nearest
whole number the volume of the cone (A) 48cm3 (B) 47cm3 (C) 38cm3 (D)13cm3
The volume of the cone is 13 cm³. option D
How to determine the volumeTo determine the volume of the cone, we have that;
The formula for calculating the volume of a cone is expressed as;
Volume = (1/3)πr ²√(L ² - r ²).
Such that;
r is the radiusL is the slant heightSubstitute the values, we have;
Volume = 1/3 × 3.14 ² × √(25 - 9)
Find the squares, we get;
Volume, V = 1/3 × 9. 86 × √16
Find the square root
Volume, V = 1/3 × 9.86 × 4
Volume, V = 13 cm³
Learn more about volume at:
#SPJ1
Which of the following have a value equal to |37|? Select all that apply.
A. –37
B. |–37|
C. 0
D. –(–37)
E. 37
Answer:
B, D, E
Step-by-step explanation:
Absolute value is always positive so the absolute value of 37 is 37.
and |-37| would equal 37.
HOpe this helps!!
What is 34% as a fraction
Answer:
17/50
Step-by-step explanation:
34%=17/50
Answer:
17/50
Step-by-step explanation:
make sure to wear your mask in public!
drink enough water! <3