Aline read a report saying 39% of teachers in the United State were members of a labor union. She wants to test whether this holds true for teachers in her state, so she is going to take a random sample of teachers and see what percent of them are members of a union. Let p represent the proportion of teachers in her state that are members of a union. Write an appropriate set of hypotheses for her significance test.
Answer:
H0: p= 0.39 vs Ha: p ≠ 0.39
Step-by-step explanation:
She wants to test whether this holds true for teachers in her state.
The test is the formulated into the hypotheses.
The null hypothesis would be
H0: p= 0.39 against the claim Ha: p ≠ 0.39
The null hypothesis tells that the the proportion of teachers in her state that are members of a union is equal to the proportion of teachers in the US that are members of the labor union.
against the claim
That the the proportion of teachers in her state that are members of a union is not equal to the proportion of teachers in the US that are members of the labor union.
Look at picture included helpp aghhh, lots of points will be given!!!
Answer:
a) 677,040 b) 17,160
Step-by-step explanation:
a) this is a combinations problem as it deals with selection, rather than order. you can use a calculator to solve this:
there are 65 objects (colors) taken 4 at a time
(see photo)
there are 677,040 possible ways to arrange the boxes.
b) unlike question a, this is a permutation. the order matters.
since Ali can only visit the cities once, you must multiply by decreasing values starting from 13 down to 10 (4 "slots" for the 4 days)
13*12*11*10 = 17,160 possiblities
need help on math plz
Answer:
using Pythagoras theorem
9² = 7² + a²
81 - 49 = a²
[tex] \sqrt{32} = a[/tex]
5.65 = a
on rounding off it becomes 6 cm
Given the arithmetic sequence a, = -5 + 3(n - 1), what is the domain for n? (1 point)
All integers where n > 1
All integers where n 20
All integers
All integers where n 2 1
Help please!!!!!!!!!!
Diameter of the circle = 8 cm
To find:-Circumference of the circle.
Solution:-[tex]\boxed{25.12\:cm}[/tex] ✅
Step-by-step explanation:We know that,
[tex]\sf\purple{Circumference\:of \:a\: circle \:=\:πd}[/tex]
[tex] = 3.14 \times 8 \: cm \\ = 25.12 \: cm[/tex]
[tex]\sf\red{Therefore,\:the\:circumference \:of\:the\:circle\:is\:25.12\:cm.}[/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Find the fraction which is exactly halfway between 1/12 and 1/3
Answer:
2/12
Step-by-step explanation:
fraction 1 = 1/3
fraction 2 = 1/12
Half-way of both fraction = (1/3 + 1/12)/2 = 15/72 = 5/24
if f(x) =2x-1 and g(x) =3x+2 find the fof(x)
=================================================
Explanation:
We won't involve the g(x) function at all.
We're composing the f(x) function with itself, which means we're replacing every x with f(x) and then simplifying.
See the attached image below for the steps.
A quantity with an initial value of 510 decays exponentially at a rate of 0.05% every 7
years. What is the value of the quantity after 3.6 decades, to the nearest hundredth?
Answer:
508.69
Step-by-step explanation:
...
Help plz
6(2x - 11) + 15 = 3x + 12
Answer:
x = 7
Step-by-step explanation:
Lets do the brackets first,
6 × 2x = 12
6 × -11 = -66
------
Calculate the x constant:
12x - 3x = 9x
-------
Then the ones with no x:
-66 + 15 = -51
51 + 12 = 63
-------
Lastly, divide
63 ÷ 9 = 7
-------
Have a good day :)
The radii of the two spheres are 2cm and 5cm.
The ratio of their volumes and surface areas are?
Answer:
1
Step-by-step explanation:
0)
What is the volume of this cube?
1 cubic foot
)) 4 cubic feet
1 ft
3 cubic feet
1 ft
1 ft
6 cubic feet
Answer:
6
Step-by-step explanation:
Please help me
Find the those two numbers!
Answer:
vsbhsgshahhwgwgwgaggsgsgsgsggdhehdhhdhdhshjxjxjxjxjjxjx
After a shipwreck, Florence is stranded on a desert island. She needs to build a shelter, so she makes an axe using materials from the wreckage and starts cutting down trees.
There is a proportional relationship between the number of days Florence is stranded on the island, x, and the total number of trees she cuts down, y.
Answer:
6x
Step-by-step explanation:
each day she cuts 6 trees so the equation would be y=6x
hey! i’ll give brainliest please help
PLEAZE SOMEONE HELP WHAT THE VOLUME OF THIS 7cm AND 6cm
r=6cm and h=7cm
Volume of right circular cone =31πr2h
=31×722×(6)2×7
=31×22×36
=264cm3
dunno whether the formula is correct or not!
Use distributive property to rewrite 6m(3n+1) in its equivalent form
Step-by-step explanation:
Use distributive property to rewrite 6m(3n+1) in its equivalent form
Answer:
Sate why the measure of angle d is 120 degrees
Help me please it’s not a or b btw
Answer:
from what I'm seeing the answer is C
Mike borrowed a sum of rs 9450 for 5 years at a rate of 6% per year. calculate the total amount that he had to pay.
First year :
9450 + 9450 × ( 6 / 100 ) =
9450 + ( 9450 × 6 / 100 ) =
9450 + ( 56700 / 100 ) =
9450 + 567 =
Rs 10,017
_____________________________
Second year :
10,017 + 10,017 × ( 6 / 100 ) =
10,017 + ( 10,017 × 6 / 100 ) =
10,017 + ( 60,102 / 100 ) =
10,017 + 601.02 =
Rs 10,618.02
______________________________
Third year :
10,618.02 + 10,618.02 × ( 6 / 100 ) =
10,618.02 + ( 10,618.02 × 6 / 100 ) =
10,618.02 + ( 63,708.12 / 100 ) =
10,618.02 + 637.0812 =
Rs 11,255.1012
_______________________________
4th year :
11,255.1012 + 11,255.1012 × ( 6 / 100 ) =
11,255.1012 + ( 11,255.1012 × 6 / 100 ) =
11,255.1012 + ( 67,530.6072 / 100 ) =
11,255.1012 + 675.306072 =
Rs 11,930.407272
_______________________________
5th year :
11,930.407272 + 11,930.407272 × ( 6 / 100 )
=11,930.407272 +( 11,930.407272 × 6 / 100)
= 11,930.407272 + ( 71,582.443632 / 100 )
= 11,930.407272 + 715.82443632
= Rs 12,646.23170832
_______________________________
Thus Mike have to pay approximately Rs 12,646 after 5 years.
A =?
P= 9456
r = 6% = 0.06
t = 5 yrs
Formula
A= P(1+r)^t
A= 9456×1.06⁵
A = 12646.23
the total amount that he had to pay was 12646 rs
Please help I have 2 more questions in my warm up.. I will give brainiest to whoever can answer
Answer:
9
Step-by-step explanation:
Just count the many units to get to each point.
I will give brainliest pls help
Answer:
6) x = 11; y = 11[tex]\sqrt{2}[/tex]
7) x = 9; y = 9
Step-by-step explanation:
What should be done first to simplify 22/2 • 3/9 • 4
Answer:
44/3
Step-by-step explanation:
Reduce 22/2 to 11, 3/9 to 1/3:
11(1/3)(4)
Working from left to right:
11(4)
------ = 44/3
3
Answer:
Step-by-step explanation:
simplify 22/2 then multiply it by 3/9
then multiply that answer by 4 and your total will be 14.6
Find the approximate surface area of the cylinder below. Round your answer to the nearest tenth.
Lateral
7cm
5cm
cm?
solve the equation for all real solutions
4q^2-4q+1=0
Answer:
q= 1/2 or 0.5 depending
Step-by-step explanation:
A line segment has endpoints at (-7, 2) and (8,8). What is the x-coordinate of the point on the line segment that is the distance from (-7, 2) to (8,8)?
Answer:
Sorry dud it been long time I've not answered 0ne
Answer:
Heyy
Step-by-step explanation:
Did ya get the answer ???
My very last last assignment and I NEEDD HELP ASAP
(part 3) Thank you all for your help so much this yr:(
Answer:
51.575
Step-by-step explanation:
[tex]s = \frac{9 + 12 + 17}{2} = 19[/tex]
[tex]area = \sqrt{19(19 - 17)(19 - 9)(19 - 12)} \\ = 51.575[/tex]
HELP WITH GEOMETRY SURFACE AREA, PAT ATTENTION TO THE DOUBLE SIDED RADIUS!!
Answer:
Half of 3 is 1.5(new radius)
1.5^2 = 2.25
2.25 x 3.14 = 7.065
7.065 x 2 = 14.13(area of two circles)
2 x 3.14 x 1.5 = 9.42
9.42(circumference) x 4(height) = 37.68(area of lateral)
Add the given areas:
37.68 + 14.13 = 51.81 cm2 is your answer.
Someone help please I need this Answer Immediately!!!!!!
Answer:
y = -1/2x - 4
Step-by-step explanation:
Find the length of the arc.
Answer:
1st option
Step-by-step explanation:
The length of the arc is calculated as
arc = circumference of circle × fraction of circle
= 2πr × [tex]\frac{210}{360}[/tex]
= 2π × 13 × [tex]\frac{21}{36}[/tex]
= 26π × [tex]\frac{7}{12}[/tex]
= [tex]\frac{26\pi (7)}{12}[/tex]
= [tex]\frac{182\pi }{12}[/tex]
= [tex]\frac{91\pi }{6}[/tex]
Which equation represents this line in point-slope form?
A.(y + 4) = (4)/(3) (x + 3)'
B. (Y-4) = -(4)/(3) (x +3)
C. Y= -(3)/(4)X'
D.4y- 3x = 0
Answer:
. (Y-4) = -(4)/(3) (x +3)
Step-by-step explanation:
Which equation represents this line in point-slope form?
Answer: B
Step-by-step explanation:
please help! 20 points. if you guess or just comment to take my points i will make sure ur account gets banned. thanks! i want a simple explanation
Answer:
x = 9
Step-by-step explanation:
Of course I'll do very simple explanation!
every time you see a straight line (nondiagonal) it measures 180°.
so if we're trying to solve for x in this case, we'll subtract 180° - 40° = 140°.
Then use the statement to solve for x
[tex]10x+50=140[/tex]
[tex]10x-50[/tex] = - 50 Subtract 50 from both sides
[tex]10x[/tex] [tex]=[/tex] 90 Divide 10 from both sides
x = 9