Mathematics Middle School

The results of a survey show that the percent of adults in a certain town who want to add bike lanes to a major roadway is in the interval (0.47, 0.63)


(a) What is the point estimate for the percent who want to add the bike lanes?


(b) What is the poll’s margin of error?


(c) If the town’s adult population is 75,783, what is the best estimate for the number of people who would support the bike lanes?

Answers

Answer 1

Answer:

a) \(\hat p =\frac{Upper+Lower}{2}= \frac{0.47+0.63}{2}= 0.55\)

b) \( ME = \frac{Upper-Lower}{2}= \frac{0.63-0.47}{2}= 0.08\)

c) For this case in order to find the number of people who would support the bike lanes we just need to multiply the estimated proportion by the total size and we got:

\( X = 0.55* 75783= 41680.65 \approx 41681\)

Step-by-step explanation:

For this case we have an interval for the true proportion of adults in a certain town who want to add bike lanes to a major roadway:

\( 0.47 \leq p \leq 0.63\)

Part a

For this case the point of estimate is given by:

\(\hat p =\frac{Upper+Lower}{2}= \frac{0.47+0.63}{2}= 0.55\)

Part b

We can estimate the margin of error with this formula:

\( ME = \frac{Upper-Lower}{2}= \frac{0.63-0.47}{2}= 0.08\)

Part c

For this case in order to find the number of people who would support the bike lanes we just need to multiply the estimated proportion by the total size and we got:

\( X = 0.55* 75783= 41680.65 \approx 41681\)

Related Questions

given b(17 5) c(11 -3) d(-1 2) and e(x -6) find the value of x so that bc ll de
WILL GIVE BRAINLIEST

Answers

first find slope of BC
y2-y1/x2-x1
5-(-3)/17-11
8/6
then at point D go 8 down & 6 tot he left
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given b(17 5) c(11 -3) d(-1 2) and e(x -6) find the value of x so that bc ll deWILL GIVE BRAINLIEST

What is this answer please

What is this answer please

Answers

Answer:

z^3 + 8

Step-by-step explanation:

here's your solution

=> we need to find product of

( z +2 ) (z^2 - 2z + 4)

=> z(z^2 - 2z + 4) + 2 (z^2 - 2z + 4)

=> z^3 - 2z^2 + 4z + 2z^2 - 4z + 8

=> now, we left with z^3 + 8

=> z^3 + 8

hope it helps

2^3+8 is the answer

Plz help me on this I dont understand how to do it.
B.) SUBSTITUTION METHOD

1) 2x + 8y = 20 2) x = 5
y = 2 2x + y = 10

Answers

Answer:

1) X=10-4y

Step-by-step explanation:

X=10-4y hope it helps

Serious. SOLVE CORRECTLY AND SHOW WORKKKK! Explain how you got it throughly.

Serious. SOLVE CORRECTLY AND SHOW WORKKKK! Explain how you got it throughly.

Answers

Answer : 12.5

Step-by-step explanation

A group of seventh graders and a group of teachers at a local middle school were asked how many siblings they each have. The dot plots below show the results. Students A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9. Teachers A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9. When comparing the shape of the two sets of data, what conclusion can someone draw? The students tend to have fewer siblings than the teachers. The teachers tend to have fewer siblings than the students. Both the students and the teachers have a wide range of siblings. Both sets of data have the same shape. the answer is- a. The students tend to have fewer siblings than the teachers.

Answers

Answer:

A. The students tend to have fewer siblings than the teachers.

Step-by-step explanation:

First we need to draw the dot plots correctly. If you count both sides they have 20 each.

Now, clearly none have fewer nobody here yet has more or less but going on to the next step.

Multiply exactly the number of siblings times how many people chose that many siblings. Ex: 2 (siblings) times 7 (people who has 2 siblings) = 14.  And so on.

On the Student A, we get a total of 41 people having sibling, if you count the 0's then there were a total of 43 people. But now on the Teacher's A Dot Plot, we have a total of 68 people, if you include the 0 then we have a total of 69.

So the answer is A. The students tend to have fewer siblings than the teachers.

Answer:

The sum is A

Step-by-step explanation:

Just ma duty to help the community

someone help meee TnT
my ind has suffer enough

someone help meee TnTmy ind has suffer enough

Answers

Answer:

Number 9: A

Number 10: A

Step-by-step explanation:

Judging by the other answers for each questions, those make the most sense. Hope this helps :)

please help due in 3 minutes will give brainliest.

please help due in 3 minutes will give brainliest.

Answers

Answer:

312 \(cm^{2}\)

HElp me?
Please? Yikes?

HElp me?Please? Yikes?

Answers

Answer:

A

Step-by-step explanation:

HElp me?Please? Yikes?
A, 5w^3 is the gcf of the expressy

100 POINTS PLEASE HELP FOR ALL QUESTIONS WILL REPORT IF YOU JUST TAKE THE POINTS AND NOT ANSWER THE QUESTION. Mathematics middle school homework

Need help ASAP

100 POINTS PLEASE HELP FOR ALL QUESTIONS WILL REPORT IF YOU JUST TAKE THE POINTS AND NOT ANSWER THE QUESTION.
100 POINTS PLEASE HELP FOR ALL QUESTIONS WILL REPORT IF YOU JUST TAKE THE POINTS AND NOT ANSWER THE QUESTION.

Answers

Answer:

What is Relation in Math? Relations in math are used to describe a connection between the elements of two sets. They help to map the elements of one set (known as the domain) to elements of another set (called the range) such that the resulting ordered pairs are of the form (input, output).

For this question they are asking identify the relationship between the corresponding terms.

a. Generate two numerical patterns using two given rules and complete an input/output table for the data.

b. Use data from an input/output table to identify apparent relationships between corresponding terms.

c. Form ordered pairs from values in an input/output table. Graph ordered pairs from an input/output table on a coordinate plane.

To graph this ordered pair you would need to first know what an ordered pair is. An ordered pair contains the coordinates of one point in the coordinate system. A point is named by its ordered pair of the form of (x, y). The first number corresponds to the x-coordinate and the second to the y-coordinate. To graph a point, you draw a dot at the coordinates that corresponds to the ordered pair.

Then you would continue to solve by graphing.

Hope this helps!

Relations are the connection of how something connects to each other. So it has to do with something about the bracelets and stuff.

Which expression is equivalent to (3√x^2)^6

Which expression is equivalent to (3x^2)^6

Answers

Answer:

x4

Step-by-step explanation:

Answer: X^4

You must combine the exponents. 6 on the outside divided by 3 is 2 times 2 from x=2 which leads you to your answer.

Find the volume of a prism. Show your work.

Find the volume of a prism. Show your work.

Answers

Answer:

Step-by-step explanation:

11 times 22

the area of its cross-section multiplied by the length

answer: 242cm squared

The answer is 242 CM squared. The answer above explains better than I can :)

Brandon is making party decorations by selecting one of two kinds of balloons heart shaped balloons or oval shaped balloons. He puts them in one of three baskets red, pink or white. The sample space for the event of selecting a balloon and putting it in one of the baskets is represented in the tree diagram. Complete the sample space

Answers

Color Red
Missing shaped Oval

The required missing color is "red" missing the shape is "oval" for the sample space.

What is probability?

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

The tree diagram represents the sample area for the event of picking a balloon and placing it in one of the baskets.

Since he places them in one of three baskets, which are red, pink, or white.

He chose between heart-shaped balloons and oval-shaped balloons,

Then sampled space, as follows:

                             heart             red, pink, white

Party Decoration

                             oval              red, pink, and white    

Thus, the required missing color is "red" missing the shape is "oval".

Learn more about probability here:

brainly.com/question/11234923

#SPJ1

The question seems incomplete, the missing part is attached below.

Brandon is making party decorations by selecting one of two kinds of balloons heart shaped balloons or

Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!

Don't guess!I will mark brainliest if its correct!Don't answer if you don't know!Also no links! And show

Answers

The decimal form of 9/4 is 2.25. Because 9 divided by 4 is 2.25.

Answer:

Hello hope this is helpful if so can I please have brainliest :)

Step-by-step explanation:

the answer is 2.25 because all you have to do is divide the numerator by the demoneter and you have your answer

Absolute Value – how far or the
[ Select ] Answer | Counter | Number | or distance
a number is from zero.

Answers

Answer:

The last answer or Distance a number is from zero

Step-by-step explanation:

It's this answer because absolute value is just how far a number is from zero for example | -1 | is equal to 1 because -1 is 1 away from zero. Hope this helps :)

Answer:

The last answer or Distance a number is from zero i think i dont know

Step-by-step explanation:

Please someone answer as soon as possible.
Earth is 92,960,000 miles from the sun. How else can you express this number?

Answers

Answer:

92.96 million miles

Step-by-step explanation:

Simplify the algebraic expression to simplest form by combining like terms.

-3x + 4 + 2y - 3 - 3y + 5x
------------------
I think it's 2x - 5y + 1 please tell me if i'm wrong <33 (If i'm wrong, tell me the right answer) If you say your not smart in your answer, and don't answer the question I will instantly report.

Answers

Answer:

pls ❤️

Step-by-step explanation:

-3x + 4 + 2y - 3 - 3y + 5x

=2y-3y-3x+5x+4-3

= -y + 2x +1

hich equation corresponds to the sentence, "Five times a minus two is equal to t"?
A. 2a + 5 = t
B. 5(2) + a = t
C. 5a – 2 = t
D. 2 x 5(a) = t

Answers

Answer:

C is the correct answer.

Step-by-step explanation:

5a = Five times a

- 2 = minus two

= t = is equal to t

The equation and its parts correspond with the sentence.

Answer:

b on edge 20211

Step-by-step explanation:

Plz help me i need the answer to this i dont get it

Plz help me i need the answer to this i dont get it
Plz help me i need the answer to this i dont get it

Answers

Answer:

A: (2,-4)  B: (2,-1) C: (5,-1) D: (5,-2)

Reflected over x-axis:

A: (2,4)  B: (2,1) C: (5,1) D: (5,2)

2 units right one unit down

A: (4,-5)

dilated by 3

rotated 180 about the origin-

(-4,5)

Step-by-step explanation:

Your finding the transformations for only A

Which expression is equivalent to twice b plus the sum of 2 and b?

Which expression is equivalent to twice b plus the sum of 2 and b?

Answers

2+3b is your answer! Hope it helps!


2 + 3b is the correct answer

Freddie has a bag of jelly beans which has the following colors:
2 purple
1 red
4 yellow
3 orange

What is the probability that Freddie will randomly select a purple jelly bean, eat it, and then select an orange jelly bean?

A: 1/15
B: 1/2
C: 3/50
D: 3/50

Answers

2/10x3/9=6/90=1/15 so it is A

please someone answer this correctly no links jUST READ DUDE

please someone answer this correctly no links jUST READ DUDE

Answers

Answer:

I don't know if you have any questions or need any further information please contact me at the sun with the sun with the sun with the sun with the

Simplify the expression. the expression negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths

Answers

-1 19/24j+1 5/12 is with mixed numbers.

-43/24j+17/2 if using improper fractions
-43/24j+17/2
That is one of the answers

4/5 + 3/15 - 2/3 = pls i wil give brainlyiest calcaulator dosent work so please and whoether uses calculator i will check and i will kick off

Answers

1/3
12+3-10/15
5/15 reduce the fraction
And you get 1/3

4/5 + 3/15 - 2/3 = 1/3

Step-by-step explanation:

If wrong i´m sorry but this is what i got ;-;

Add: 4/

5

+ 3/

15

= 4 · 3/

5 · 3

+ 3/

15

= 12/

15

+ 3/

15

= 12 + 3/

15

= 15/

15

= 15 · 1/

15 · 1

= 1

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(5, 15) = 15. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 5 × 15 = 75. In the following intermediate step, cancel by a common factor of 15 gives 1/1.

In other words - four fifths plus three fifteenths = one.

Subtract: the result of step No. 1 - 2/

3 = 1 - 2/3= 1/1- 2/3 = 1 · 3/1 · 3 - 2/3 = 3/3 - 2/3 = 3 - 2/3 = 1/3

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(1, 3) = 3. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 3 = 3. In the following intermediate step, it cannot further simplify the fraction result by canceling.

In other words - one minus two thirds = one third.

50 POINTS EASY!!! ASAP BRAINLIEST
The vertices of a rectangle are plotted on the coordinate grid shown.

A graph with the both the x and y-axes numbered starting from negative 8 with units of one up to 8. There are points plotted at negative 5, 5, at 4, 5, at negative 5, negative 5, and at 4, negative 5.

What is the area of the rectangle shown?

40 square units
45 square units
80 square units
90 square units

50 POINTS EASY!!! ASAP BRAINLIESTThe vertices of a rectangle are plotted on the coordinate grid shown.A

Answers

I think it's 90.

The two vertical sides, the length, are 10 boxes long, and the horizontal sides, the width, are 9 boxes long.

Area is Length x Width, so you do 10 x 9 = 90.

Answer:

90

Step-by-step explanation:

because it's a 10 by 9 recyangle

Mike has a poster that he wants to copy onto a mural at school. The dimensions of the poster are shown. If Mike doubles the dimensions of the poster, what will be the area, in square feet, covered by his copy?

Mike has a poster that he wants to copy onto a mural at school. The dimensions of the poster are shown.

Answers

Answer:

34

Step-by-step explanation:

Answer:24
Explanation:

WILL GIVE BRAINLIEST find the minimum value of the parabola y=x^2+42/5

Answers

Answer: 26 is the minimum of the parabols.

Step-by-step explanation:

I NEED HELP ASAPPPPPPP

I NEED HELP ASAPPPPPPP

Answers

Answer:

1 in

Step-by-step explanation:

1/2 = 3

3 x 2 = 6

1/2 x 2 = 1

Darcy likes to eat peanut butter and raisins on apple slices. On each apple slice, she puts 1/16 cup of peanut butter and 8 raisins. Darcy has 2/5 cups of peanut butter and 80 raisins. She eats a whole number of apple slices until the peanut butter is all gone. What fraction of the 80 raisins did she eat? Enter the fraction in the response box.

Answers

The answer is 7/10. If she has 2/5 cup of peanut butter, she will have it only fo 6 or 7 apple slices (2/5 ÷ 1/16 = 32/5 = 6.4) depending how it is rounded.
Step-by-step explanation: The answer is 7/10. If she has 2/5 cup of peanut butter, she will have it only fo 6 or 7 apple slices (2/5 ÷ 1/16 = 32/5 = 6.4) depending how it is rounded.

How many solutions does this equation have? 6h−(9−3h)=6−3(h+2) Responses infinitely many infinitely many 1 0

Answers

Answer: It only has one answer.

Step-by-step explanation: If you try to solve this more than one way, the answer will be the same.

This equation only has one answer and again im not good at math

Badly need help first (valid) answer will get brainliest.

Badly need help first (valid) answer will get brainliest.

Answers

Answer:

I think the equation would be 3x+2x=90 and LNM= 54

Step-by-step explanation:

I will put here something so you can put brainliest :D
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