Answer:
c
Step-by-step explanation:
Consider a hypothesis test of difference of means for two independent populations x1 and x2.(a) What does the null hypothesis say about the relationship between the two population means?H0 says that the population means are different.H0 says that the population standard deviations are equal. H0 says that the population means are equal.H0 says that the population standard deviations are different.
H0 says that the population means are equal.
In the context of a hypothesis test for the difference of means between two independent populations (x1 and x2), the null hypothesis (H0) states the following about the relationship between the two population means:
H0 says that the population means are equal.
In other words, the null hypothesis assumes that there is no significant difference between the means of the two populations. The alternative hypothesis would then state that the population means are different. Remember that hypothesis testing is a process to determine whether there is enough evidence to reject the null hypothesis in favor of the alternative hypothesis.
Visit here to learn more about null hypothesis:
brainly.com/question/28920252
#SPJ11
Which expression is equivalent to 8.7u + 1.4 + 3.2u - 9.5?
Answer:
Which expression is equivalent to 8.7u+1.4+3.2u−9.5 ?
Haley B. Workin did eight chores in the morning. She did 40% of her daily
chores in the morning. How many daily chores does she have?
Answer:
20
Step-by-step explanation:
You want to know how many daily chores Haley has if 40% of them are 8 chores.
ChoresLet c represent the number of daily chores. The number of chores accomplished in the morning was ...
0.40c = 8
Dividing by 0.40, we find ...
c = 20
Haley has 20 daily chores.
4 more than the difference of 12 and a number j
The algebraic expression for the mathematical statement given as 4 more than the difference of 12 and a number j is 4 + 12 - j
How to determine the arithmetic expression?The mathematical statement is given as:
4 more than the difference of 12 and a number j
4 more than means 4 +.
So, we have:
4 + the difference of 12 and a number j
the difference of 12 and a number j means 12 - j
So, we have
4 + 12 - j
Hence, the algebraic expression for the mathematical statement given as 4 more than the difference of 12 and a number j is 4 + 12 - j
Read more about algebraic expression at
https://brainly.com/question/4344214
#SPJ1
T/F as a leader, jui-en believes that he should change his behaviors to match the circumstances because no one style works all the time. jui-en is applying the FITB approach to leadership
As a leader, Jui-En tbelieve that he should change his behaviors to match the circumstances because no style works all the time. Jui-En is applying the socialized approach to leadership.
What is a socialized approach to leadership?Employee motivation can be boosted by socialization, affirming reward, lead their vision, offer impressive benefits and encourage the temwork.
Employees who socialize who can sosialized in the workplace can increase their work efficiency because its reduce the work pressure by sharing information and teamwork which is important to thriving a company.
So, the correct answer is sosialized.
Learn more about work behaviours at https://brainly.com/question/3687780
#SPJ4
ok, this is the last question I need help with(I think) please answer. I give Brainliest for best answer
Answer:
D) 132.67 (this seems to be the closest to the answer, I hope it helps)
Step-by-step explanation:
First, have the area of circle formula: A = π r²
Then, you need to find the radius to be able to complete the area formula. So, since you have the circumference, you will need to use it to find the radius:
C = 2 π r
40.82 = 2 π r
20.41 = π r
r = 6.496704777 . . . Do not round! Rounding will not give an exact answer!
Now that you have the radius, plug in:
A = π r²
= π (6.49 . . .)²
= π (42.20717296 . . .) Do not round! Rounding will not be exact!
= 132.5977445 . . .
≈ 132.6
PLEASE help me! 50 Points
What is the Inverse of
Answer:
hmm what could it be I DNT kno
Andrew has 37$ in his bank account and writes a check for 87$ . After the check has been cashed , what will the bank balance show?
Answer: -50
Explaination: when you write a check, you are withdrawing money.
This means that Andrew will have -50 in his bank balance.
You add the 37 dollars currently in his bank account, but you also add the -87, (in this case is negative since you are withdrawing), which makes your answer -50.
Find the values of the median of a trapezoid with the following base values;
9514 1404 393
Answer:
a) 11
b) 42
c) 25
d) 7.5
e) 35.5
Step-by-step explanation:
The median is the average of the base lengths:
a) (7 +15)/2 = 22/2 = 11
b) (49 +35)/2 = 84/2 = 42
c) (18 +32)/2 = 50/2 = 25
d) (3 +12)/2 = 15/2 = 7.5
e) (31 +40)/2 = 71/2 = 35.5
Answer: a) 11
b) 42
c) 25
d) 7.5
e) 35.5
Step-by-step explanation:
Question 2
Which results in a net value of 0?
O John has $25 and spends $10
O John gives away 4 out of 5 of his canned sodas
O John buys a shirt for $20 and returns it for a refund of $20
O John makes $8 but owes Tracie $5
Edward works as a waiter, where his monthly tip income is normally distributed with a mean of $2,000 and a standard deviation of $350. Use this information to answer the following questions. Record yo
The probability that Edward’s monthly tip income exceeds $2,350 is 0.8413.
Given that Edward works as a waiter, where his monthly tip income is normally distributed with a mean of $2,000 and a standard deviation of $350.
The z score formula is given by;`z = (x - μ) / σ`
Where; x is the raw scoreμ the mean of the populationσ is the standard deviation of the population.
The probability that Edward’s monthly tip income exceeds $2,350 is to be found.`z = (x - μ) / σ``z = (2350 - 2000) / 350``z = 1`
The value of z is 1.
To find the area in the right tail, use the standard normal distribution table.
The table value for z = 1.0 is 0.8413.
Therefore, the probability that Edward’s monthly tip income exceeds $2,350 is 0.8413.
Know more about probability here:
https://brainly.com/question/251701
#SPJ11
Which inequality is true?
Answer:
A. 7pi>21
Step-by-step explanation:
7*pi=21.99
21.99>21
Do number 12 pleasee
Answer:
114
Step-by-step explanation:
25% = 25/100 = 0.25
152 × 0.25 = 38
152 - 38 = 114
Answer:
$114
Step-by-step explanation:
152x0.75 = 114
21. You and your sister have been saving and decide to buy a PlayStation 5 together. You need $500 to buy the PlayStation. Together you have $850 saved up. Since you have more money, you contribute 50% of your savings and your sister contributes 75% of hers toward the $500 cost. How much do each of you have saved individually?
Answer:
I have $550; my sister has $300.
Step-by-step explanation:
Let the amount I have be x.
Let the amount my sister has be y.
We have a total of $850, so
x + y = 850
50% of my amount plus 75% of my sister's amount equals $500.
0.5x + 0.75y = 500
We have a system of two equations:
x + y = 850
0.5x + 0.75y = 500
Multiply the second equation by 2 and subtract the first equation from it.
0.5y = 150
y = 300
x + y = 850
x + 300 = 850
x = 550
Answer: I have $550; my sister has $300.
I NEEEED answers WITH 5.3.3 in CONNEXUS FOR MATH PLSSS
A square has a perimeter of 12 units. One vertex is at the point left-parenthesis negative 1 comma 1 right-parenthesis, and another vertex is at the point left-parenthesis 2 comma 4 right-parenthesis. Which of the following points could be another vertex?
A. left-parenthesis 1 comma 2 right-parenthesis
B. left-parenthesis 2 comma 1 right-parenthesis
C. left-parenthesis 1 comma negative 2 right-parenthesis
D. left-parenthesis 2 comma negative 1 right-parenthesis
Another possible vertex of the square is determined as (2, 1).
option B is the correct answer.
What is the vertex of the square?The vertex of a figure is the point of intersection of two sides of the shape.
The perimeter of the square is given as 12 units, the length of each side of the square is calculated as follows;
P = 12 units
a side length = 12 units / 4 = 3 units
To determine another possible vertex of the square, the length between the points must be equal to 3.
Let's consider point A;
A = (1, 2)
given vertex = (-1, 1)
distance between the points = √ (-1 -1)² + (1 - 2)² = √5
Let's consider point B;
B = (2, 1)
given vertex = (-1, 1)
distance between the points = √ (-1 -2)² + (1 - 1)² = √9 = 3
Thus, point B is another possible vertex of the square.
Learn more about vertex of a square here: https://brainly.com/question/23627218
#SPJ1
Question is in the image. I need help with #19
EXPLANATION
Replacing the given functions into the following:
\(\frac{f(x+h)-f(x)}{h}\)\(\frac{x^2-1+h-(x^2-1)}{h}\)Removing the parentheses and simplifying:
\(\frac{x^2-1+h-x^2+1}{h}\)Simplifying like terms:
\(\frac{h}{h}=1\)Hence,
\(\frac{f(x+h)-f(x)}{h}=1\)Christine bought 9m ribbon lace for her school project. One yard of the lace cost P5.00
How much did Christine pay in all?
Step-by-step explanation:
Given 1 yard = 0.9144m
0.9144 m = 1 yard
1 m = 1/0.9144 yards = 1.094yards
9m = 9 x 1.094 yards = 9.846yards
given 1 yard = P5.00
9.846 yards = P5.00 x 9.846 = P49.23
Please help me please please
I need the answer immediately!!!!!!
Answer:
y = 1/5x - 7
Step-by-step explanation:
Planes X and Yand points J, K, L, M, and N are shown.
Exactly how many planes contain points J, K, and N?
X
O 0
O 1
O 2
03
K
Υ
2
.M
.N
Answer:
0
Step-by-step explanation:
0
Number planes contain points J, K and N is 0. Therefore, option A is the correct answer.
What is a plane?A plane in geometry is a level surface that never ends. Other names for it include a two-dimensional surface. A plane has an unlimited width, an endless length, zero thickness, and no curvature.
Given that, X and Y are planes.
In the given figure, point J lies outside the X and Y planes.
Points K and N are lies on plane X.
So, J, K and N are not lying in the same plane.
Therefore, option A is the correct answer.
Learn more about the coordinate plane here:
https://brainly.com/question/24134413.
#SPJ7
A number m is no less than –1 or less than or equal to −5.
Answer:
-1 < m ≤ - 5
Step-by-step explanation:
Your expression includes: m, -1, -5, >, ≤
m is the value being compared so it will be in the middle.
# sign m sign #
m is no less than -1: no less than means it is greater than -1, but does not include -1. Therefore, our sign is >
m > -1
m is less than or equal to -5. This means we use ≤ because it can equal -5.
m ≤ -5
Now combine the two expressions
m > -1 – This can also be written as -1 < m.
m ≤ -5
-1 < m ≤ - 5
72,12,2 simplest form
Answer:
456748
Step-by-step explanation:
you 463uy2iuswhk then 13456
Find the unit vectors that are parallel to the tangent line to the curve y = 2 sin(x) at the point 6 , 1 .
[1/2, sqrt(3)/2] and [-1/2, -sqrt(3)/2] are the unit vectors that are parallel to the tangent line to the curve.
Explain what a unit vector is?
A quantity with both magnitude and direction is referred to as a vector. A unit vector is one with a magnitude of 1. It also goes by the name Direction Vector.y=2sin(x)
dy/dx equals 2 cos x at pi/6 for x.
pi/6 = 2 cos pi/6 = 2 sqrt(3)/2 = sqrt = dy/dx(pi/6) (3)
the line sqrt(3) (x-pi/6) is the tangent to y at pi/6.
Atan Theta = sqrt is the angle with the x axis (3)
θ = pi/3 radians at 60 degrees
the vectors of units at (pi/6,1) [cos(60), sin(60)] and [-cos(60), -sin(60)] are parallel to this line.
[1/2, sqrt(3)/2] as well as [-1/2, -sqrt(3)/2]
Learn more about unit vector
brainly.com/question/14291312
#SPJ4
Which term describes the set of all possible output values for a function?
A. Range
B. Output
C. Domain
оо
D. Input
What is the equation of the line that passes through the points (-2, 1) and
(-6, -5)?
Answer:
y=3/2x+4
Step-by-step explanation:
1.find the slope
y2-y1/x2-x1
-5-1/-6-(-2)
-5-1/-6+2
-6/-4
3/2
slope (m) is 3/2
2.y-y1=m(x-x1)
y-1=3/2(x-(-2))
y-1=3/2(x+2)
y-1=3/2x+6/2
y=3/2x+6/2+1
y=3/2x+8/2
y=3/2x+4
a pond is in the shape of a semi-circle. the diameter of the pond is 11 feet. what is the perimeter of the pond? use 3.14 for pi. round your answer to the nearest hundredth.
The perimeter of the pond is 28.21 feet.
The perimeter of a semi-circle pond having a diameter of 11 feet should be calculated as follows: The perimeter of a semi-circle is equal to the sum of its straight and curved sides.
The diameter of the pond is 11 feet, so the radius of the pond is half that, or:
11/2 = 5.5 feet
The length of the curved side of the pond is half the circumference of a circle having a diameter of 11 feet, or:
πd/2 = 3.14 × 11/2 = 17.21 feet
The length of the straight side of the pond is equal to the diameter, or: 11 feet
The perimeter of the pond is the sum of these two values: 17.21 + 11 = 28.21 feet
Therefore, the perimeter of the pond is 28.21 feet, rounded to the nearest hundredth.
To know more about perimeter: https://brainly.com/question/30085178
#SPJ11
etermine whether the sequence converges or diverges. If it converges, find the limit. If it diverges write NONE. 8 (In (n))2 a 11n im a=
the sequence {a_n} converges to 0.
To determine whether the sequence {a_n} converges or diverges, we can apply the limit test:
lim_{n->inf} a_n = lim_{n->inf} 8(ln(n))^2 / (11n) = lim_{n->inf} (8/11) * (ln(n))^2 / n
Since the limit of the quotient of a polynomial and an exponential function is 0 as n approaches infinity, we have:
lim_{n->inf} (ln(n))^2 / n = 0
Therefore,
lim_{n->inf} a_n = lim_{n->inf} (8/11) * (ln(n))^2 / n = 0
So the sequence {a_n} converges to 0.
Visit to know more about Converge:-
https://brainly.com/question/31328203
#SPJ11
What is the length of the dotted line in the diagram below? Round to the nearest tenth.
Answer:
length of dotted diagonal line = 11
Step-by-step explanation:
Using the Pythagorean theorem:
length of rectangle² = 9² + 6² = 81 + 36 = 117
length of rectangle = √117 = 10.82
length of diagonal² = 2² + 10.82² = 4 + 117 = 121
length of diagonal = 11
The number pattern shows a skip-counting rule. 5,20,35,50,65. Which number pattern follows the same rule?
Answer:
You keep adding 15.
Step-by-step explanation:
5+15=20
20+15=35
35+15=50
50+15=65
Find the amount of money
accumulated after investing a
principle P for years t at interest
rate r, compounded continuously.
P = $15,500 r=9.5% t=12
Round your answer to the nearest cent (hundredth).
Answer:
$48,464.91
Step-by-step explanation: