Answer:
Step-by-step explanation:
It's independent
A large factory that builds machines has three shifts, one that starts at 4:00 A.M., one that starts at noon, and one that starts at 8:00 P.M. The manager of the factory wanted to know whether there is an association between an employee’s work experience (less than five years with the company, between five and twenty years with the company, over twenty years with the company) and the time of the employee’s shift. The manager selected a random sample of 125 employees and classified employees by their shift time and work experience. What is an appropriate pair of hypotheses for the manager to use?
Answer:
if the worker has more experience, then they will have longer shifts because they will be better at their job and be able to complete more tasks.
Step-by-step explanation:
use and "if then because" structure in a hypothesis, and use common logic based on the info provided :)
Answer:
[tex]H_{0}[/tex] : Work experience is independent of the time of an employee's shift
[tex]H_{A}[/tex] : Work experience is dependent on the time of an employee's shift
Step-by-step explanation:
Since we have one population but multiple variables, so we are using a chi-square test of independence. Thus, our null should be that there is no association, and the alternative that there IS an association.
Please help ASAP the question is in the picture and please explain why and how u got the answer
Answer:
12
Step-by-step explanation:
Since the entire line is 60 and MN is five times as long. Then I would say that you could just divide 60 by 1/5 or 0.2
since the length of the line is 60 you gots to fos and divide it my homie.
60/5=12 so thats means the length is 12
you got that my guy
(sorry if ur a girl)
E = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}
A = {odd numbers}
B = {multiples of 3}
Complete the Venn diagram for this information.
6
A
B
e
15,2
Answer:
A=11,13,17,19 B=12,18 None=10,14,16,19 Both=15
Step-by-step explanation:
11,13,15,17,19 are all odd so they go in A
12,15,18 Are all multiples of 3 so they go in B
10,14,16,19 Are not classified so they go outside of the diagram but inside E
15 is odd and a multiple of 3 so put it in the center and not with A and B
PLEASE I NEED HELP I GOT A PUPPY AND IM EXHAUSTED HE DOESNT SLEEP AT NIGHT
Answer:
False
Step-by-step explanation:
Plug 16 into the function as x
16+12=28
4≠28
Which of the following terms describes the 2 in the expression 5x - 3y + 2z + 1?
Answer:
coefficient
Step-by-step explanation:
it has three terms
the thief with the stolen accordion has been traveling on a raft for 2 hour 40 minutes from Village Ivanovo toward Village Sosnovka. Aniskin immediately leaves Sosnovka in a motorboat and travels upstream toward the raft. Aniskin catches the thief 27 km from Sosnovka. Find the speed of the raft if the speed of the motorboat in still water is 12 km/h and the distance from Ivanovo to Sosnovka is 44 km.
Answer:
3 km/hStep-by-step explanation:
Let the speed of raft (current) - rSpeed of motorboat - 12 km/hThe distance between villages - 44 kmLet the time spent by Aniskin - tThe time the thief was in travel = 2 hr 40 min + t = 2 40/60 + t = 3/8 + tThe distance the thief traveled = 44 - 27 = 17 kmWe have following equations:
r(8/3 + t) = 17(12 - r)t = 27Simplify the equations:
r(8/3 + t) = 17 ⇒ rt + 8/3r = 17(12 - r)t = 27 ⇒ 12t - rt = 27Add up the equations and solve for r:
rt + 8/3r + 12t - rt = 448/3r + 12t = 44r = 16.5 - 4.5tSubstitute r into second equation:
(12 - 16.5 + 4.5t)t = 274.5t² - 4.5t = 279t² - 9t - 54 = 0Solving we get
t = 3 hFind r:
r = 16.5 - 4.5*3 = 3 km/hAnswer:
Step-by-step explanation:
Which type of graph uses images to represent data?
line graph
bar graph
pictograph
pie chart
Answer:
pictograph is a type of graph that use images to represent data or a given information and it is also called picture graph
A farmer picked 496 oranges. He also picked 435 lemons. Which shows
how many more oranges than lemons he picked?
496 X 435
496 ÷ 435
496 - 435
496 + 435
Answer:
C
Step-by-step explanation:
:)
please help im literally crying i cant fail this
Answer:
V = 189
Step-by-step explanation:
V= lwh/3 = 9·9·7/3 = 189
What is the maximum value and what is the point the maximum value is at?
9514 1404 393
Answer:
z = 47 at (x, y) = (3, 8)
Step-by-step explanation:
In the attached graph, the inequalities are graphed as their opposites, so the feasible solution region is the white area of the graph. The dashed boundary lines are part of the feasible region. The vertex of the feasible region that is farthest from the origin is ...
(x, y) = (3, 8)
The value of z there is 5·3 +4·8 = 47.
The maximum value of z is 47 at the point (x, y) = (3, 8).
Suppose a family has three children. Find the probability they have at
most one boy. (Enter as a decimal)?
Answer:
33.333333percent or .333333
Step-by-step explanation:
Hey all!
Please only answer if you know the answer, the comment section is right below. Please don't waste my points!
Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.
The image is down below. Show work! Thanks!
Answer:
65°Step-by-step explanation:
Use the law of cosines:
cos C = (25² + 27² - 28²)/(2*25*27)cos C = 0.4222m∠C = arccos 0.4222m∠C = 65°the square root of 50 plus 5 square root of 8
[tex] \sqrt{50} + 5 \sqrt{8} [/tex]
Triangle PQR is shown. The triangle has a base of 4 in and a height a 2.5 in.
Which measurement is closest to the area of triangle PQR in square inches?
5 in2.
8 3/4in.2
6 1/2in.2
11in.2
Answer:
A
Step-by-step explanation:
Area = 1/2 * b * h
b = 4 in
h = 2.5 inches
Area = 1/2 * 4 * 2.5
Area = 2 * 2.5
Area = 5 in^2
Consider the following graph.
The x y coordinate plane is given. The curve begins at (0, 5) goes down and right becoming less steep, changes direction at (1, 2) goes up and right becoming more steep, goes through the approximate point (2, 3.1), goes up and right becoming less steep, changes directions at (3, 4), goes down and right becoming more steep, sharply changes direction at (4, 1), goes up and right becoming less steep passing through the approximate point (5, 4.2) and ends at (6, 6).
(a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.)
(b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.)
(c) Find the open interval(s) on which f is concave upward. (Enter your answer using interval notation.)
(d) Find the interval(s) on which f is concave downward. (Enter your answer using interval notation.)
(e) Find the coordinates of the point(s) of inflection.
(x, y) = ( )
a)Function is increasing in intervals (1,3) and (4,6).
b)Function is decreasing in intervals (0,1) and (3,4).
c)Graph is concave upward in the interval (0,2) and (3,5).
d)Graph is concave downward in the interval (3,4).
e)Points of inflection are x=3 and x=5.
Let us make the graph of the given function. In the graph, We have connected points linearly, please consider it as a curve.
What is the point of inflection?The point of inflection or inflection point is a point in which the concavity of the function changes.
Therefore, From the attached graph, we can see that:
a)Function is increasing in intervals (1,3) and (4,6).
b)Function is decreasing in intervals (0,1) and (3,4).
c)Graph is concave upward in the interval (0,2) and (3,5).
d)Graph is concave downward in the interval (3,4).
e)Points of inflection are x=3 and x=5.
To get more about graphs visit:
https://brainly.com/question/1869945
Answer:
a.(1,3)U(4,6)
b.(0,1)U(3,4)
c.(0,2)
d.2,6
e. 2,3
Step-by-step explanation:
Looking at graph and finding intervals.
Arthur has a savings account. If he withdrawals $6, he
will have more than $26 remaining in the account. Which
inequality can be used to determine x, the amount of
money he had in his account before making the
withdrawal?
A.
X+6 26
B.
x + 6 = 26
C.
X-6226
D.
X-6 > 26
Answer:
32
Step-by-step explanation:
6+26=32
Enter the number that makes the equation true
0.02 + 5/100= ______ / 100 + 5/100
Answer:
2
Step-by-step explanation:
0.02 = 2/100 so the answer is 2
Can someone help please please
Answer: A: (6, 5)
Step-by-step explanation:
When graphing a system of equations, you can find the solution by finding where the graphs intersect. In this case, the graphs intersect at (6, 5).
To verify that this is indeed a solution to the system of equations, we can substitute (6, 5) into both of the given equations:
[tex]y = \frac{1}{2}x + 2[/tex]
[tex]5 = \frac{1}{2} * 6 + 2[/tex]
[tex]5 = 3 + 2[/tex]
[tex]5 = 5[/tex]
[tex]y = x - 1[/tex]
[tex]5 = 6 - 1[/tex]
[tex]5 = 5[/tex]
Since both equations hold true when plugging in the given coordinate (6, 5), we know that this is a solution to the system of equations.
HELPP ILL GIVE BRAINLESS
Answer:
Scale Factor is 2.5
Step-by-step explanation:
Need help with this one thanks!
the faulty odemeter of a used car registers 4.6 miles for every 5 miles driven. when travelling from acton to bywater, the faulty odemeter registers 92 miles. how far apart are acton and bywater
Answer:
i have no idea how to do this but good luck on your mathematics olympics !!
Step-by-step explanation:
Please help ASAP. Thanks so much
Answer:
its A
Step-by-step explanation:
Find the surface area
Will give brainliest to first answer!!!!
9. Find the value of
the expression.
16 + 4 + (42 - 3) =
Answer:
59Step-by-step explanation:
16 + 4 + (42 - 3) = 20 + 39 =59Answer:
59
Step-by-step explanation:
16 + 4 + (42-3) = 59. Do parentheses first. (42-3) = 39. Which changes the equation to 16 + 4 + (39). 39 + 4 = 43. Then the equation changes to 16 + 43. These added together equal 59. Hope this helps!
PEMDAS= Parentheses, exponents, multiplication, division, addition, and then subtraction.
This is the order in which to solve these types of equations, which is why I did the parentheses first.
x/4−1=3
What is the value of x?
Answer:
x = 16
Step-by-step explanation:
x/4 - 1 = 3
x/4 = 3+1
x/4 = 4
x = 4*4
x = 16
Answer:
x=16
Step-by-step explanation:
always multiply denominator by whatever it is to the number behind the equl sign after subtracting that one it would be whatever that number is *4
someone help with math:
For which equation is b = 5 not the solution?
options:
1. 8 - b = 13
2. b + 6 = 11
3. b + 4 = 9
4. 12 - b = 7
Answer:
option 2 and 3
b+6=11
b+4=9
Answer:
1. 8 - b = 13
Step-by-step explanation:
It says for which equation is b = 5 not the solution.
So, we need to plug in 5 into every b, and find out which one is incorrect.
1. 8 - 5 = 13 (incorrect)
2. 5 + 6 (correct)
3. 5 + 4 = 9 (correct)
4. 12 - 5 = 7 (correct)
Therefore, option 1 is the answer to your question.
I need help with this problem please
Answer:
-9
Step-by-step explanation:
Remove parentheses.
9(−1)2−7
Subtract 77 from 22.
9(−1)−5
Rewrite the expression using the negative exponent rule b−n= 1/bn
91(−1)5
Raise −1 to the power of 5.
9(1/-1)
Divide 1 by −1.
9⋅−1
Multiply 9 by −1.
−9
Which situation can be modeled by the equation 705 – m= 430?
help !!!!
Answer: Luigi has 705 wine kegs at his winery, and he delivers (m) amount of them to his brother at the marketplace. How many did he deliver in order to have 430 left?
I hope this helped!
Plzzz help me I am bad at math!! Plzzz i am timed!
Answer:
[tex]70ft^{2}[/tex]
Step-by-step explanation:
1) Split into two shapes a triangle and a rectangle
2) Area of Triangle = (Base time Height)/2
3) 6*10=60/2 30
4) 4*10=40
5) 30+40=70
Answer:
lol 400 ft
Step-by-step explanation:
ik i already said but so other people can see
2.
Sal paid $3 to enter the fair and bought 10 tickets for rides. Write an algebraic
expression to tell how much money she spent. Let r= the cost of