The standard deviation S for the sampling distribution of the sample mean, is calculated as follows:S = σ/√nwhere σ is the population standard deviation and n is the sample size. Thus, substituting the values of σ = 3.6 and n = 5, we get;S = 3.6/√5S = 1.612The value of x = 0 since we are looking for the standard deviation of the sampling distribution of the sample mean. Therefore, the answer is S = 1.612 and x = 0.
The standard deviation S is a parameter because it is calculated using population values, in this case, σ. On the other hand, the mean of the sample is a statistic because it is calculated from the sample data.(c) Since the sample size n is less than 30, the conditions for using the Central Limit Theorem are not fulfilled. The Central Limit Theorem requires a sample size greater than or equal to 30.
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Help!! Write the following as an inequality.
x is less than 9 and greater than or equal to 5
Use x only once in your inequality.
The answer to the given question is 5≤x<9.
What are open interval and closed interval ?Open interval do not include the given points where close intervals include the given points.
According to the given question
x is less than 9 and greater than or equal to 5
5≤x<9
There are 4 types of inequalities lees than, greater than, less than or equal to, greater than or equal to.
Suppose a is greater than 2 and less than 6 this can be written as
2<x<6.
another example a is greater than or equal to 2 and less than or equal to 6 then this can be written as
2≤x≤6.
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John works in a car dealership selling new and used cars, He is extremely busy during major holidays selling as many cars as possible. The store’s motto is “Work Hard Earn More”. During the last holiday period, John sold $150,000 worth of vehicles. His commission is 15% of the first $100,000 and 10% on the remaining balance. How much commission did he earn on his total sales?
Can you pls help and also with lots of points!!!!
Answer:
i can help you but please can you send full questions
Are the lines of equations
x = −2 + 2t, y = −6, z = 2 + 6t and
x=−1+t,y=1+t,z=t, t∈ R, perpendicular to each other?
The given lines of equations are not perpendicular to each other. Therefore, `θ = cos⁻¹(8/(4√10))` which is approximately `28.07°`.Since `θ ≠ 90°`, the given lines of equations are not perpendicular to each other.
Given lines of equations:
x = −2 + 2t, y = −6, z = 2 + 6tx=−1+t,y=1+t,z=t, t∈ R.
Firstly, we need to find the direction vectors of the two given lines.For the first equation,Let `t=1`, then the point on the line is `(-2+2(1), -6, 2+6(1))`=`(0, -6, 8)`.
Let `t=2`, then the point on the line is
\(`(-2+2(2), -6, 2+6(2))`=`(2, -6,\)14)`.T
herefore, direction vector `
\(v1 = (2, -6, 14)-(0, -6, 8)`=`(2, 0, 6)`\)
For the second equation, direction vector \(`v2 = (1, 1, 1)`.\\\)
Let the angle between the direction vectors `v1` and `v2` be `θ`.
Then, we know that `v1 • v2 = |v1||v2| cosθ`, where `•` represents the dot product of the vectors, and `|.|` represents the magnitude of the vector.
Thus, we have:
(2, 0, 6) • (1, 1, 1) = √(2²+0²+6²)√(1²+1²+1²) cosθ
=> 8 = √40√3 cosθ=> cosθ = 8/(4√10)
Therefore,
`θ = cos⁻¹(8/(4√10))`
which is approximately `28.07°`.
Since `θ ≠ 90°`, the given lines of equations are not perpendicular to each other.
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What is the value of x in the equation - - *?
0 32
18
18
0 32
Answer:
x= 18
Step-by-step explanation:
Which expressions have exactly two factors? Choose ALL that apply.
A) a+ 7
B)4•n•n
C)3(b-1)
D)xy
E)m•m+8
F)2•2•2•2•2
Answer: The answer is F.
Step-by-step explanation: It’s F because the number would be multiplied equally because all of the number are multiplied by 2. The rest of them either have variables or variables with numbers in them, which looks kind of funky, so F is the answer. I hope you get it right :). Sorry, if I was late for the reply and if you already figured it out… :(.
Write an equation to represent the function described by this thesis statement “The circumference C of a circle is found by multiplying 2(pie symbol) times the radius r.”
Answer:
I got that C = 2(pi symbol)(r)
Consider the following joint distribution for two discrete
random variables X and Y. Joint Probability Y = 1 Y = 2 X = 0 0.15
0.22 X = 1 0.43 0.20 (a) What is the joint probability P(X=0,Y=2)?
(Round
The joint probability P(X=0, Y=2) calculated by given joint distribution table. From the table, we see that the value in the intersection of X=0 and Y=2 is 0.22.So, the joint probability P(X=0, Y=2) is 0.22.
Let's go through the joint distribution table again to calculate the joint probability P(X=0, Y=2).
The table represents the joint probabilities of two discrete random variables, X and Y. The values in the table indicate the probability of each combination of X and Y.
Looking at the table, we find the entry corresponding to X=0 and Y=2. In this case, the value is 0.22.
Therefore, the joint probability P(X=0, Y=2) is 0.22. This means that there is a 22% probability of the event where X takes the value 0 and Y takes the value 2 occurring simultaneously.
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The rain gauge shows 3 centimeters of rainwater.
Which of the equations below gives the height, h, if it rains at a rate of 0.25 centimeters per hour after t hours? Hint: the h is the "y" and the t is replacing "x"
A. h=0.25t+3h is equal to 0 point 2 5 t plus 3
B. h=3t+0.25h is equal to 3 t plus 0 point 2 5
C. t=0.25h+3t is equal to 0 point 2 5 h plus 3
D. t=3h+0.25
Answer:
h=0.25t+3
Step-by-step explanation:
y=mx+b
y=0.25x+3
replace y with h and x with t
h=0.25t+3
When Alan and Brady stood together on the scale, their total weight was 250 lb.
Brady and Charles were weighed together, and their total weight was 300 lb.
Charles and Damien weighed 280 lb. when they stood on the scale together.
Initially, when Charles, Damien, and Brady all stood on the scale together, it
registered 420 lb. How much does each of the boys weigh?
Answer:
Alan: 110 lb.
Brady: 140 lb.
Charles: 160 lb.
Damien: 120 lb.
Step-by-step explanation:
Evaluate the expression when, c=7 and x=-2
c-4x
Answer:
The answer to this expression would be 15
Step-by-step explanation:
(7) - 4(-2) = 7 + 8 = 15
\(\huge\text{Hey there!}\)
\(\huge\boxed{\mathsf{c - 4x}}\\\huge\boxed{\mathsf{\rightarrow 7 - 4(-2)}}\\\huge\boxed{\mathsf{\rightarrow 7 -(-8)}}\\\huge\boxed{\rightarrow{\mathsf{7 + 8}}}\\\huge\boxed{\mathsf{\rightarrow 15}}\\\\\\\\\\\huge\text{Therefore, your answer is: \textsf{15}}\huge\checkmark\\\\\\\\\huge\text{Good luck on your assignment \& enjoy your day!}\\\\\\\huge\boxed{\frak{Amphitrite1040:)}}\)
please help would appreciate so much
The area of a sector of a circle is given by the equation uppercase A = StartFraction pi r squared uppercase S Over 360 EndFraction, where r is the radius of the circle and S is the angle measure of the sector.
Answer:360A/pi ^2
Step-by-step explanation:
A beaker has a mass of 129 g. What is the mass of this beaker in kilograms?
Answer: 0.129 kg
Step-by-step explanation:
A gram to a kilogram can be found by dividing the value of grams by 1000, or multiplying the value by 0.001
Just need help with 6 please
Answer:
Congruent, SSS
Step-by-step explanation:
The dashes on the sides of the triangles represent that the corresponding lengths of the triangles are equal in length. Since it is given that all corresponding lengths of the triangles are equivalent, the triangles are congruent by the SSS (side, side, side) test.
Hope this helps :)
Dave bought 8 boxes of chocolate candy and gave 2 boxes to his little brother. if each box has 17 pieces inside it, how many pieces did dave still have?
Answer:
17×6=102 because he gave 2 boxes to his brother so he have 6 boxes
Solve the system by substitution.
-2x-10y=-2
-4y=x
maybe xd ad something else please
if the mine winch drum diameter is 6m calculate how far the counterweight will lift for each single rotation of the drum use the formula C=2ttr
Answer:
A single rotation accounts for the circumference of the mine winch drum:
from formula:
\(circumference = 2\pi r\)
r » radius.
but r = 2 × diameter.
therefore; radius, r = 2 × 6 = 12 m
\(c = 2 \times 3.14 \times 12 \\ { \underline{ \underline{ \: \: circumference = 75.36 \: m \: \: }}}\)
[ considering π to be 3.14 ]
What is the sum of (x ^ 2 - 3x + 2) and (5x ^ 2 - 3x - 8)
Answer:
6x^2-6x-6
Step-by-step explanation:
(x^2-3x+2)+(5x^2-3x-8)
x^2+5x^2-3x+(-3x)+2+(-8)
6x^2-3x-3x+2-8
6x^2-6x+2-8
6x^2-6x-6
someone please help. how would this be graphed??
Answer:
See picture
Step-by-step explanation:
Find the measure of ∠X
2 problems only and please show work and explain how you got the answer so that way I can understand what you're doing and how to solve the other problems on my work sheet.
Answer:
7) 65°8) 25°Step-by-step explanation:
Question 7
Angle formed by 2 chords is half of the sum of the intercepted arcs
x = 1/2(72° + 58°) = 1/2(130°) = 65°Question 8
Angle formed by 2 secants is half of the difference of the intercepted arcs
x = 1/2(360° - (130° + 98° + 41°) - 41°) = 1/2(50°) = 25°Solving each system elimination.
(Help I’ll mark you brainly)
Answer:
1) x=6, y=-6 which is (6,-6) as an ordered pair
3) x=10, y=-1 which is (10,-1) as an ordered pair
Step-by-step explanation:
Question 1:
Solve them like an addition problem:
-4x-2y=-12
4x+8y=-24
________
(-4x+4x)+(-2y+8y)=(-12+-24)
0x+6y=-36
6y=-36
y=-6
Plug value of y into one of the original equations:
4x+8(-6)=-24
4x-48=-24
4x=24
x=6
Question 3:
Solve them like an addition problem:
x-y=11
2x+y=19
_______
(x+2x)+(-y+y)=11+19
3x+0y=30
3x=30
x=10
Plug value of x into one of the original equations:
10-y=11
-y=1
y=-1
Find the missing side. Round your answer to the nearest tenth
Answer:
700
Step-by-step explanation:
determine the probability of drawing either a queen or a diamond? write your answer as a reduced fraction.
The probability of drawing either a queen or a diamond is 15/52
How do we calculate the probability?To determine the probability of drawing either a queen or a diamond, we have to find the sum of the probabilities of drawing a queen and drawing a diamond, then subtract the probability of drawing both a queen and a diamond. This is because the probability of drawing both a queen and a diamond has been added twice when we added the individual probabilities.
Thus, we have:P(queen or diamond) = P(queen) + P(diamond) - P(queen and diamond)
The probability of drawing a queen is 4/52, since there are four queens in a deck of 52 cards. The probability of drawing a diamond is 13/52, since there are 13 diamonds in a deck of 52 cards.
There are two ways to draw a card that is both a queen and a diamond, namely the queen of diamonds and the diamond queen. Thus, the probability of drawing both a queen and a diamond is 2/52. Therefore, P(queen or diamond) = 4/52 + 13/52 - 2/52 = 15/52 = 15/4 = 3.75 As a reduced fraction, this is 15/52.
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Find the product 3/8 x2
Answer:
3/4
Step-by-step explanation:
3
(-----)*2 = 3/4
8
Answer:
3/4
Step-by-step explanation:
1) multiply numerator x numerator
3 x 2 = 6
2) mantain the same denominator
6/8
3) divide numerator and denominator by 2
3/4
A town has a population of 3000 and grows at 2.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 4600?
It will take the town 21 years 4 months to reach 4600 in population
What is rate?
a rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.
initial population = 3000
population increase every year = 2.5% of 3000
which is 2.5/100 x 3000 = 75
let the time taken to reach 4600 be d
increment for d number of years = 75d
Total population after d years is 75d + 3000
so 75d + 3000 = 4600
75d = 4600 - 3000
75d = 1600
d = 1600/75
d = 21.33 years which is 21 years 4 months
In conclusion 21 years 4 months is the time taken for the ton tto get tto 4600
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What is the equivalent radian measure of 540°? One-third radians StartFraction 3 Over pi EndFraction radians StartFraction pi Over 3 EndFraction radians 3 pi radians.
The equivalent radian measure of 540° is calculated to be 3π using the relation between degree and radian.
what is the relation between radian and degree?The value of 180° is equivalent to π radian.
π radian= 180°
as we know that
180° = π radian
1° = π/180 radian
540° = 540* π/180
3π radian
therefore, The equivalent radian measure of 540° is 3π.
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Answer:
d on edge
Step-by-step explanation:
What are the corresponding rectangular coordinates for point Q equals the ordered pair 6 comma 11 times pi over 6 given in polar coordinates?
rectangular coordinates and polar coordinates are related to each other by the following relation
\(\begin{cases}x=r\cos \theta \\ y=r\sin \theta\end{cases}\)On polar coordinates, the first coordinate is the radius and the second the angle. Using this information, we have
\((6,\frac{11\pi}{6})\rightarrow\begin{cases}x=6\cos \frac{11\pi}{6} \\ y=6\sin \frac{11\pi}{6}\end{cases}\)Solving thiose expressions, we have
\(\begin{cases}x=6\cos \frac{11\pi}{6}=6\cdot(\frac{\sqrt[]{3}}{2})=3\sqrt[]{3} \\ y=6\sin \frac{11\pi}{6}=6\cdot(-\frac{1}{2})=-3\end{cases}\)Then, the coordinates of the point Q are
\((3\sqrt[]{3},-3)\)The product of three and a squared number is twice the sum of the number and four.
A. 3x2 = 2(x+4)
B. (3x)2 = 2(x+4)
C. (3x)2 = 2x +4
D. 3x2 = 2x+4
Answer:
It B option.
Step-by-step explanation:
I hope it's the right answer.
Adi bought a bag for $25 and sold it at a loss of 10%. Find the selling price of the bag.
Answer:
The selling price of the bag is $22.5
Step-by-step explanation:
Buying Price = $25,
Selling Price = ?
Since they sold it at a loss of 10%,
So, they sold it for a price 10% less than the buying price,
or at 90% or 0.9 of the buying price,
so,
Selling Price = (0.9)(25) = $22.5