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Related Questions
Suppose we collect a simple random sample of 200 registered voters from a large city. We find that 25% of the voters in the sample are Independents. Find a 95% confidence interval for the percentage of registered voters in the city that are Independents. Round your answer to at least two decimal places.
Answers
Answer:
0.05<x<0.06
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = p' ±z * √p(1-p)/n
z is the z score at 95% CI
p is the proportion of the independent sample
n is the sample size
p' = X/n
p' = 0.25/200
p' = 0.00125
Given
z = 1.96
p = 25% = 0.25
n= 200
Substitute into the formula;
CI = p' ±1.96 *√0.25(1-0.25)/200
CI = p' ±1.96 * √0.25(0.75)/200
CI = p' ±1.96 * 0.0306
CI = p' ±0.0605
CI = 0.00125 ±0.0605
CI = (0.048, 0.06175)
CI = (0.05, 0.06)
0.05<x<0.06
Please help! 2nd time asking!
Answers
Answer:
4
Step-by-step explanation:
Function 1 is moving at a constant rate meaning it has the rate of change of 0/1 or 0.
Function 2 says y is 4x meaning that the rate of change is 4/1 or 4.
0 - 4= I-4I or 4
Rachel is buying school supplies. She needs to buy a binder for $4.50, whiteboard markers for $7.00 and some mechanical pencils for $0.29 each. She can spend up to $13.00. Which inequality can be used to find m, the number of mechanical pencils she can buy?
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Please answer! solve for x
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Answer:
it 180 degree try to add them all the subtract with 180 and that equals x
Step-by-step explanation:
Answer:
x = -10
Step-by-step explanation:
The angles of a triangle always add up to 180°. This means that (x+46) + 52 + 92 = 180.
First, subtract 92 from both sides of the equation to get (x+46) +52 = 88. Then, subtract 52 from both sides of the equation to get x + 46 = 36. Finally, subtract 46 from both sides of the equation to get x = -10
A) 41 cm2
B) 54 cm2
C)81 cm2
D)121.5 cm2
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Answer:
C.
Step-by-step explanation:
you have to use the equation 4pir^2. After simplifying, it comes out to 81pi cm^2
PLEASE HELP!! THANK YOU!!
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Step-by-step explanation:
i know the coordinates are ( 0,-3 1/2 ) or ( 0, -3.5 ) for D
Answer:
(0,-2)
Step-by-step explanation:
Parallelograms have parallel lines and equal opposite lines.
You can count.
For Ex: A is 1 above and 5 to the left of B.
So D should be 1 above and 5 to the left of C.
C is at (5,-3)
Go up 1 and left 5 and you get (0,-2)
HELP ME PLS WITH THIS
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Answer:
j
Step-by-step explanation:
Find the distance between the two points to the nearest tenth. (0,-5) and (-4,2) 5 5.3 5.2 5.6
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Sqr (-4-0)^2 + (2+5)^2
Sqr (16) + 49 = sqr 65
I got around 8.
(I might did something wrong, idk)
{2x−y=2 2x−2y=4 solve by sustitution
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i been needing help with my work on study island
Answers
Answer:can I see the answer for the drop down box..
Step-by-step explanation:
Answer: The answer is they left about 24% of the tip
Step-by-step explanation: Find 15% of the total number, add 20 to it, then divide by the total bill
could somebody help
Answers
Answer:
112
Step-by-step explanation:
[tex]12 + (( {5}^{2} ) \times 4) \\ 12 + (25 \times 4) \\ 12 + 100 \\ = 112[/tex]
please mark as brainliest
ASAP!!!!!!!!!!!! I NEED HELP!!!!! I WILL MARK BRAINLIEST!!!!!!!
Answers
Nooooooooooooooooooooooo
Answers
Answer: yes
Step-by-step explanation:
Simply just yes
Answer:
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Step-by-step explanation:
As a cold front moved in, the temperature dropped 3 degrees each hour for 6 hours. What was the total temperature change after the 6 hours?
Answers
Answer:18°
Step-by-step explanation:
6x3=18
Adah produces scented candles. The cost of producing a candle is $1.25. Adah sells a candle for $2.50. She has a start-up costs of $300.
a) Write a system of two equations that models this situtaiton.
b) Determine the number of candles Adah must sell to break even. Solve the system using your chosen method and identify the method used.
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Answer:
(a) The system of two equations are
c = $300...(1)
p = x × ($2.50 - $1.25)...(2)
(b) The number of candles she must sell to break even are 240 candles
Step-by-step explanation:
The cost of of producing a candle = $1.25
The price at which Adah sells a candle = $2.50
The stat-up cost of producing candles = $300
(a) Let c represents the start-up cost of producing candles, let p represent the profit Adah makes from selling candles and x represents the number of candles sold, we have;
c = $300...(1)
p = x × ($2.50 - $1.25)...(2)
(b) The number of candles Adah must sell to break even is given as follows;
At break even point, Start-up cost = Profit
∴ c = p
300 = x × (2.50 - 1.25) = 1.25·x
∴ x = 300/1.25 = 240
Therefore;
The number of candles she must sell to break even = 240 candles
The total cost in dollars to buy uniforms for the Ping-Pong team can be found using the function c=22.50+5 where u is the number of uniforms bought.if there are at least 7 players but not more than 10 players on the Ping-Pong team, what is a reasonable range for the situation? A.{7,8,9,10} B.{162.50 , 185, 207.50, 230} C. 7≤ x ≤ 10 D. 162.50 ≤ y ≤ 230
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answer: b
explanation:
it’s asking for the range so it can’t be c or d because those are used in continuous data only so it’s between a and b but it can’t be a as a is the range of players but b is the range of the cost so the answer would then be b
Evaluate the function f(-2) - h(4) given the following functions: f(x) = 4x 2+ 9 h(x) = 3x - 14
Answers
Answer:
-86
Step-by-step explanation:
simplify each equation as much as possible
f(x)= 4x(2+9) add
4x(11) multiply
f(x)=44x
substitute given numbers into each equation
44(-2)=-88 3(4)-14= 12-14=-2
combine equations
-88-(-2)= -86 add since you are subtracting a negative number
Help Will give crown
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Answer:
a) x=3
y=6*3+4
=22
b) x=4
y=6*4+4
=24
c) x=6
y=6*6+4
=40
d) x=7
y=6*7+4
=46
Hope it will help you......What is the product of 3/5 and 10/11?
Answers
Answer:
6/11
Step-by-step explanation:
Amanda's dog eats 7 1/2 Pounds of dog food in 2 weeks how much does amandas dog eat each day?
Answers
Answer:
0.535 pounds
Step-by-step explanation:
Answer:
15/28 pounds
Step-by-step explanation:
7 1/2 ÷ 14 days = 15/28
Tom fed the dog 3 times as many times as her sister last week. His sister walked the dog 9 times. Max said he could multiply 4 times 9 to find out how many more times he walked the Dog than his sister. Is Tom correct?
Answers
Answer:
No
Step-by-step explanation:
The calculation that Tom is trying to do would be to calculate how many times he walked the dog if he had walked the dog 4 times as many times as his sister, who in this scenario walked the dog a total of 9 times. Since, in this scenario there is no mention of how many times Tom walked the dog then this calculation cannot be made and I would say that Tom is not correct.
Answer: nope
Step-by-step explanation: it’s just obvious
Pls answer ASAP, will mark brainliest
Answers
Answer:
15
Step-by-step explanation:
What’s the solution to the equation
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ANSWER: D
30.16=17.56+5x
30.16-17.56=5x
12.6=5x
x=12.6/5
x=2.52
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
Which postulate can be used to prove congruence? Please help
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Answer: Choice E) Insufficient information to prove congruence.
============================================================
Explanation:
We're given that AB = DC and BE = CE. This means we have two pairs of congruent sides and we could use SAS if we know that angle ABE = angle DCE. However, we don't know this information.
While we do know that angle AEB = angle DEC (vertical angle theorem), this is not enough information. Recall that SSA is not a valid congruence theorem. The angles in question are not between the sides mentioned in the previous paragraph.
Therefore, we don't have enough information to prove the triangles congruent.
-----------------
Side notes:
We can't use SSS because we don't have info about three pairs of sides. We only have info about two pairs of sides.We can't use ASA because we only have info about one pair of angles.We can't use HL because this only applies to right triangles.5 + 0.08 + 0.004 in word form plz
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Answer:
Five plus eight hundredths plus four thousandths
Answer:
five plus zero point zero eight plus zero point zero zero four equals five point zero eighty four
Step-by-step explanation:
Felix’s Feed Mill sells chicken feed for $8.00 per bag. This price is no longer high enough to create a profit. Felix decides to raise the price. He is considering four different plans.
Plan A: Raise the price by $0.10 each week until the price reaches $12.00.
Plan B: Raise the price by 10 percent each week until the price reaches $12.00.
Plan C: Raise the price by the same amount each week for 8 weeks, so that in the eighth week the price is $12.00.
Plan D: Raise the price by $0.25 each week until the price reaches $12.00.
Which plan will result in the price of the feed reaching $12.00 fastest?
-plan A
-plan B
-plan C
-plan D
Answers
Answer: B is the fastest way
Step-by-step explanation: How to solve this is a bit hard
8*1.1^n =12, so : ln(8) +n*ln(1.1) = ln(12), then
n = (ln(12) - ln(8))/ln(1.1) (≈ means around)4.3 weeks.
Answer: ANSWER IS [B]
Step-by-step explanation:
Solve for y.
9/4y - 12 = 1/4y - 4
Answers
Answer:
y=4
Step-by-step explanation:
9/4y = 1/4y + 8
9/4y - 1/4y = 8
8/4y = 8
2y = 8
Y = 4
Out of 30 cookies,
4/5
are chocolate chip. How many cookies are chocolate chip
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Answer:
24 are chocolate chip
Step-by-step explanation:
Hope this helps =)
6x +8=5x=4
what is the value of x
Answers
Answer:
x = -4/11
Step-by-step explanation:
add the x values.
11x+8=4
subtract 8 from each sides
11x=-4
divide by 11
x=-4/11
I NEED HELP ASAP PLSSSSSSS
Answers
Answer:
53 degrees
Step-by-step explanation:
Answer:
53
Step-by-step explanation:
180-127=53