Answer:
416
Step-by-step explanation:
Given that:
A previous random sample = 4000
Sample mean = 2250
[tex]\hat p = \dfrac{x}{n}[/tex]
[tex]\hat p = \dfrac{2250}{4000}[/tex]
[tex]\hat p = 0.5625[/tex]
The confidence interval level = 90%
Desired Margin of error E = 0.04
The level of significance at 90% C.I = 1 - 0.90 = 0.10
The critical value [tex]Z_{\alpha/2} = Z_{0.10/2}[/tex]
[tex]\implies Z_{0.05} = 1.645[/tex] ( From the z tables)
[tex]n = \hat p \times (1- \hat p ) \bigg ( \dfrac{z_{0.05}}{E} \bigg)^2[/tex]
[tex]n = 0.5625 \times (1- 0.5625) \bigg ( \dfrac{1.645}{0.04} \bigg)^2[/tex]
[tex]n = 0.5625 \times (0.4375) \bigg ( 41.125 \bigg)^2[/tex]
n = 416.21
Thus, the number of citizens required to be sampled is [tex]\simeq[/tex] 416
Can somebody please help me with this math question
Answer:
80 is what I got
Step-by-step explanation:
Does y=2x-4 represent a linear function?
Answer:
Yes
Step-by-step explanation:
This equation is in slope-intercept form, [tex]y=mx+b[/tex]. If graphed, it would be a line.
Hope this helps!
PLEASE HELP! Geometry Question
Answer:
hiii
your answer is option d
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
The average person uses 6 square feet of area. If we have a 30 ft by 15 ft room with walls 10 ft high, approximately how many people could stand up in the room?
Answer:
300persons
Step-by-step explanation:
First we need to find the total surface area of the room expressed as;
Total surface area = 2(LW+LH+WH)
L is the length = 30ft
W is the width = 15ft
H I the height = 10ft
Substitute
TSA = 2{(30(15)+30(10)+15(10)}
TSA = 2(450+300+150)
TSA = 2(900)
TSA = 1800ft²
Since an average person uses 6 square feet of area, the total numwr of people that can stand up the room is expressed as;
Total people = TSA/average area per person
Total person =1800/6
Total person = 300persons
Hence 300persos can stand up the room
x^2-15x+7 use quadratic formula
Answer:
x=15 +-[tex]\sqrt{97}[/tex]/2
Step-by-step explanation:
John gets a new job and receives a $500 signing bonus. After that, he makes $200 a day. How much money does he make after 4 days?
Answer:
John makes a total of $1,300.
Step-by-step explanation:
We know that before his bonus, John already has $500. Then, he gets $200 every day for 4 days.
200 x 4 = $800
So, over the course of those 4 days, Johnny makes $800. Now, let's add this to the rest of his money.
800 + 500 = $1,300
Therefore, John makes a total of $1,300.
Hope this helps! :)
Yo guys I need you’re help
Answer: The answer is 8
Step-by-step explanation:
This is because 0.9x0.9 equals 8.1.
Also 0.1x2=0.1
a train travels 20 miles in 5 minutes. how far can it travel in 9 minutes
Answer:
36 miles
Step-by-step explanation:
20 divided by 5 = 4
4 times 9 = 36 miles
Answer:
36 miles
Step-by-step explanation:
OK 20 miles in 5 minutes
we need to find miles per minute
20/5=4
the train goes 4 miles in 1 minute
now multiply
4*9=36
36 miles
Hope This Helps
A recipe has a ratio of 2 cups of dark soy sauce to 3 cups of light soy sauce. How many cups of dark soy sauce are there for each cup of light soy sauce?
Answer:
2/3 cup
Step-by-step explanation:
Freddy is searching for a shirt and discovers that he has 12 shirts for every 6 pair of jeans. if he has 18 shirts how many pairs of jeans does he have now?
Answer:
9
Step-by-step explanation:
he has 2 shirts for 1 pair(s) pants so if you multiply 9 times 2 you get 18 and if you multiply 9 time 1 you get your answer which is 9
Write an equation in Slope Intercept Form for the following line.
Answer:
y=2x+-4
Step-by-step explanation:
Answer:
The equation in slope intercept form (y = mx + b) is y = 2x - 4
m = the slope
b = the y intercept
The line cross the y-axis at -4 so the y-intercept (b) is -4.
You can use the slope formula [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex] since you have plotted points (0, -4) and (2, 0) on the graph that you can plug in.
[tex]\frac{0--4}{2-0}[/tex] = [tex]\frac{4}{2}[/tex] = 2
So the slope (m) is 2. Now you can make the slope-intercept form using these values. So, the equation for the line is y = 2x - 4
Use the graph of function g to answer the following question.
What is the value of g(1)?
Answer:
g isnt on it i don;t think
Step-by-step explanation:
The value of g(1) according to the given graph is 2 and this can be determined by using the concept of greatest integer function.
Given :
Greatest integer function graph.
Greatest integer function is also known as the floor function. The greatest integer function or floor function can be written as [x].
According to the given graph, the table below shows the value of x and at that value of 'x' it shows the value of the greatest integer function g(x).
x g(x)
1 2
2 4
3 4
4 4
5 4
6 4
7 4
8 4
9 4
10 8 and so on.
The value of g(1) according to the given graph is 2 and this can be determined by using the concept of greatest integer function.
For more information, refer to the link given below:
https://brainly.com/question/12465796
the following triangles are congruent by SSA
Answer:
False
Step-by-step explanation:
Missing the side stick
help mee please i don’t understand
I am trying to find the area of this shape. Can you plz explain in detail.
Answer:
Step-by-step explanation:
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides.
Tammy brought 17 packs of cola to a party, and each pack had 8 cans. Lucy brought 6 cans of juice. How many cans did they bring in all?
With 17 packs and 8 cans in each, you would multiply 17x8 which is 136 then you add Lucy’s cans so 136+6 the answer is 142
What two numbers multiply to 11 and add to -12
Answer:
-11 and -1
Step-by-step explanation:
if you multiply -1 and -11, hte negatives will cancel out and it will be positive 11
if you add -11 and -1 the answer will be -12
The two numbers whose multiplication will give 11 and the add will be -12 are -1 and -11.
A quadratic equation is an algebraic expression whose power is raised to the second degree.
Mathematically, it can be expressed as:
ax² + bx + c = 0
For more examples, we can have x² -12x + 11 = 0
The way this is solved is that we are going to look for two numbers, in which:
the multiplication of these two numbers will be = 11the addition of those two numbers will be = -12Therefore, the two numbers are -1 and -11
SO, our quadratic equation can be re-written as:
x² - 1x - 11x + 11 = 0
x(x - 1) -11(x - 1) = 0
(x - 11 ) (x - 1) = 0
Learn more about quadratic equations here:
https://brainly.com/question/472337
#SPJ2
find the slope of the line PLEASEEE
Answer:
1/2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
m=[tex]\frac{y^{2}-y^{1} }{x^{2}-x^{1} }[/tex]
x&y[tex]^{1}[/tex]=(0,0)
x&y[tex]^{2}[/tex]=(2,1)
m=[tex]\frac{1-0}{2-0}[/tex]
m=1/2
5
1. An online store sells Raider shirts. They charge $8 for shipping and $21
per shirt ordered. Write an expression that can be used to find the cost in
dollars for R shirts including shipping. *
HELPPPP
Answer:
21s+8=r
need more characters
Help please 20 points and brainliest!!!
Answer:
C
Step-by-step explanation:
Divide (x^4 - y^4) by (x-y)
Show your calculation .
You can use factorisation.
Answer:
4
Step-by-step explanation:
x4−y4/x−y
=
x4−y4/x−y
Answer:
[tex]\boxed{x^3 + xy^2 + yx^2 + y^3}[/tex]
Step-by-step explanation:
[tex]\frac{x^4 - y^4}{x - y}[/tex]
[tex]= \frac{(x^2)^2 - (y^2)^2}{x - y}[/tex]
[tex]= \frac{(x^2 - y^2)(x^2 + y^2)}{x - y}[/tex]
[tex]= \frac{(x - y)(x + y)(x^2+y^2)}{x - y}[/tex]
[tex]= (x + y)(x^2 + y^2)[/tex]
[tex]= x^3 + xy^2 + yx^2 + y^3[/tex]
HELPPP!!! And explain please.
Answer:
After correcting error of Mia and solving the expression[tex]0.38 \times 3 \div(-1/20)\times5\div(-8)[/tex] we get 14.25
Step-by-step explanation:
The given expression is:[tex]0.38 \times 3 \div(-1/20)\times5\div(-8)[/tex]
First I solve the expression, and then will point the error
[tex]0.38 \times 3 \div(-1/20)\times5\div(-8)\\Converting \ \div \ sign \ into \ \times the \ term \ is \ inverted\\=0.38 \times 3 \times(-20)\times5\times(-1/8)\\=0.38\times 3 \times-20\times5\times-1/8\\=1.14 \times-20\times5\times-1/8\\=-22.8\times5\times-1/8\\=-114\times-1/8\\=\frac{-114}{-8}\\=14.25[/tex]
So, the mistake Mia did was when she inverted division sign into multiplication, she didn't invert the term next to division sign.
The step she did was: [tex]0.38 \times 5 \times(1/20)\times3\times(-8)[/tex]
While the correct step was: [tex]0.38 \times 3 \times(-20)\times5\times(-1/8)[/tex]
After correcting error of Mia and solving the expression[tex]0.38 \times 3 \div(-1/20)\times5\div(-8)[/tex] we get 14.25
3+7=7+3 is an example of which property
1. Inverse
2. Associative
3. Distributive
4. Commutative
A firefighter climbed up to the middle of a ladder to see if there was any fire on the second floor of a building and there was none; he then climbed up 10 more steps and saw some smoke so he came back down 14 steps and waited for 5 seconds to check his equipment. He then climbed 20 steps all the way to the top of the ladder and got off on the roof. How many steps are there on the ladder?
Answer:
32
Step-by-step explanation:
Let there be n number of steps on the ladder.
First, the firefighter climbed up to the middle of a ladder. so to reach the middle of the ladder he must have climbed [tex]\frac n 2[/tex] steps.
Then, after climbed 10 more steps, the total number of stairs from the ground he climbed [tex]= \frac n 2 +10[/tex].
Then, he came back down 14 steps, so the total number of stairs from the ground he climbed [tex]= \frac n 2 +10 -14=\frac n 2 -4[/tex].
Remaining steps [tex]= n - \left(\frac n 2 -4 \right)=\frac n 2 +4[/tex]
Given that he climbed 20 steps all the way to the top of the ladder which is equal to the remaining steps. So,
[tex]\frac n 2 +4 = 20[/tex]
[tex]\Rightarrow \frac n 2 = 20-4=16[/tex]
[tex]\Rightarrow n = 16 \times 2 = 32.[/tex]
Hence, there are 32 steps on the ladder.
I am a six digit number. One of my sevens is worth 700,000. The other seven is worth 1/10 as much. My eight is worth eight 100s. My nine is worth 90. My other digits are zero. What number am I?
Answer:
The six digit number is 7,70,890
Step-by-step explanation:
Six digit number
One of my seven is = 700,000
Other seven is 1/10 of 700,000 = 70,000
Eight is worth 8 100s = 800
Nine is worth 90 = 90
Other digits are zeros = 0
Upon adding all these we get = 7,70,890
The six digit number is 7,70,890
What is the negative reciprocal?
-23/17
Answer:
17/23
Step-by-step explanation:
-(-17/23)
17/23
i need this now
how do you find areas of shapes
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
yw lol
THIS IS MY 5th TIME POSTING THIS AND NOBODY IS HELPING WHAT IS THE SLOPE,X int , Y int OF THIS EQUATION ALSO PLS SHOW UR WORK
Answer:
2x+y=-5
Y=-5-2x
X | Y
(0 ; -5)
(1 , -7)
(-2'5 ; 0)
And then put the points in the graph
White people are literally the most racist people on earth! They are 63% more racist then any other race.
Answer:
yep
Step-by-step explanation:
Answer:
what you just said is racist in itself, it is also wrong. If you put 1 million white people in a room with 1 million black people statistics prove there will be more racist people of color. The reason why there are more white racist people world wide is because there are more white people than any other race alive to this day, so if you want to be smart about it you would know how to make it even. It's also 30% as well compared to 39% of racist black people.
Step-by-step explanation:
1. What is matter
2. Write the states of matter with three examples.
Answer:
1.Matter is the "stuff" that makes up the universe — everything that takes up space and has mass is matter. All matter is made up of atoms, which are in turn made up of protons, neutrons and electrons
2.Matter can exist in one of three main states: solid, liquid, or gas.
Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around.
Liquid matter is made of more loosely packed particles. It will take the shape of its container. Particles can move about within a liquid, but they are packed densely enough that volume is maintained.
Step-by-step explanation:
Answer:
Matter is defined as anything that has mass and takes up space. The types of matter are solids, liquids, gases, and plasma. An example of solids are the desks in school,your bones, or your house. An example of liquids is the ocean, lemonade, or blood. Gases can be hydrogen, carbon dioxide, or oxygen. Plasma can be stars.
Step-by-step explanation: