If a sample mean is 32, which of the following is most likely the range of
possible values that best describes an estimate for the population mean?
A. (32, 42)
B. (30.38)
C. (34 42)
O D. (28.36)

Answers

Answer 1

Answer:

Step-by-step explanation:

It is D, I did this quiz once


Related Questions

Susan earns $10 per hour tutoring elementary students in math. She also earns $15 per
hour cleaning in the library. Her goal each week is to earn at least $240 while working no
more than 20 hours.
Let e represent the number of hours Susan works in one week tutoring elementary students,
and let c represent the number of hours Susan works in one week cleaning the library.
Which inequalities represent Susan's weekly goal of earning money?

Answers

Inequalities represent Susan's weekly goal of earning money are:

c + e ≤ 20

15c + 10e ≥ 240

What is an inequality?

The term "inequality" in mathematics refers to a connection between two expressions or values that is not equal to each other. Inequality originates from an imbalance, thus. The majority of the time, size comparisons between two numbers on the number line are made.

The most notable instances of social inequality include those related to health care, social class, gender inequality, and wealth disparity. Comparatively speaking, some people in the healthcare system receive better and more skilled care. For these services, they are also likely to pay more.

Given that,

Susan earns $10 per hour tutoring elementary students in math.

She also earns $15 per hour cleaning in the library.

Her goal each week is to earn at least $240 while working not more than 20 hours.

Thus, the equation of inequality:

c + e ≤ 20

15c + 10e ≥ 240

Here, e represent the number of hours Susan works in one week tutoring elementary students.

c represent the number of hours Susan works in one week cleaning the library.

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Based on previous research, the standard deviation of the distribution of the age at which children begin to walk is estimated to be 1.5 months. A random sample of children will be selected, and the age at which each child begins to walk will be recorded. A 99 percent confidence interval for the average age at which children begin to walk will be constructed using the data obtained from the sample of children. Of the following, which is the smallest sample size that will result in a margin of error of 0.1 month or less for the confidence interval?
A. 400
B. 900
C. 1300
D. 1600
E. 2100

Answers

I need this answer to b or d 400

What is the value of y (angles)

Answers

Answer:

39°

Step-by-step explanation:

At the section the angles are connected, meaning that the angle across from w is the same as w and same applied to x. To find y, you first need to find w, to find the 2nd angle of the triangle of the right.

To do this, you need to add up 42 + 85.

(All triangles angles = 180)

42+85=127

subtract this from 180 to find angle w

180 - 127 = 53

53 = Angle w, which is the same as the angle across from angle w (second angle).

Second, take 53 + 88 = 141

Subtract this from 180

180-141 = 39.

39 is y°

or

y° = 39


Find the value of x then classify the triangle.

Answers

Answer:

x= 35⁰ - obtuse triangle

Step-by-step explanation:

since the sum of angles of the triangle = 180⁰

(3x-5) + (x+10) + (x) =180⁰

5x+5= 180

(subtracting 5 from both sides)

5x=180-5

5x= 175

(dividing by 5)

x= 35⁰

so the angles of the triangle are

(3x-5) = 105-5= 100⁰

(x+10) = 45⁰

(x) = 35⁰

then this triangle is an obtuse triangle

Fine the Value of x?

Answers

Gshahehahgwgahaahajajka

Describe how the graph might be misleading. Then explain how someone might misinterpret the graph…

Answer For Both Graphs And 25 Points!!!

Answers

Answer: 1. The first graph has the x and y axis values as minutes and frequency, but the title is bicycling.

2. it's a dotted graph, which doesn't give enough information since that graph does not have to be linear, but when you have a graph like that you want a line graph.

Answer:

the other dude answered it better than i did

Step-by-step explanation:

Callie drew the map below to show her neighborhood. If each unit in the coordinate plane represents 1.5 miles, how many miles is it from the school to the grocery store?

Answers

I’m so sorry but I need to answer 2 questions to be able to ask mine again I apologize

Select perpendicular lines from the given pair of lines :

Select one:

a.
y = − 3x + 7, y = 3x + 11


b.
y = 3x + 7, y = x / 3 + 11


c.
y = − 3x + 7, y = x / 3 + 11


d.
y = − 3x + 7, y = − x / 3 + 11

Answers

Answer:

The line pairs that are pendicular are shown in option c.

c.    y = − 3x + 7, y = x / 3 + 11

Step-by-step explanation:

Perpendicular lines have slopes that are the negative inverse of each other.  For example, a line with slope of 5 would have a line perpendicular to it if the second line has a slope of -(1/5)  [the negative inverse of +5].

Cmpare the slopes of each pair of linear equations:

a.  -3 and 3  The negative inverse of -3 would be (1/3), not 3.  These lines are not perpendicular.

b.  3 and (1/3).  The negative inverse of 3 would be -(1/3), not (1/3).  These lines are not perpendicular.

c.  -3 and (1/3).  The negative inverse of -3 would be (1/3).  These lines are perpendicular.

d.  -3 and (-1/3).  The negative inverse of - 3 would be (1/3).   These lines are not perpendicular.

What is the value of log2 base 2?

Answers

the value of log2 base 2 is 1 because if base and logrithm value is same then it is always one

How do you find the value of log base 2?

Properties of Log Base 2

Multiply two numbers with base 2, then add the exponents. Divide two numbers with the base 2, subtract the exponents. Power Rule: Raise an exponential expression to power and multiply the exponents.

Use the change-of-base formula:

since we know that natural log and log with base 10 are different

So, if we want to write log3(6) as a logarithm of base 2, in these example a = 3, x = 6, b = 2:

Hence ,  the value of log2 base 2 is 1 because if base and logrithm value is same then it is always one

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1)
2)
Which relation is not a function?
1
-A
30
2
B
3.
: mo
C
A
4
36
3
3)
4)
2-
x
relations
246
6:
8-
Co
8
-10
12
₹10
12

Answers

Answer:

2, cause it shows a different function or pattern

7. Kya picks up where she left off in her book and starts reading. After 2 hours, she's on page 195. After reading for 4 hours that day, she's on page 297. Write an equation to represent how many pages Kya reads per hour.

I did the equation= y=51x+93

There are a total of 399 pages in the book. How many more hours does Kya have left to read? PLEASE HELP WILL THIS PART I DONT UNDERSTAND ​

Answers

Answer:

Step-by-step explanation:

Work for finding the equation, feel free to skip it:

So first off, to write the equation, we will use an equation in slope intercept form: y = mx + b, where y is the numbers of pages she has read, m is the number of pages she reads per hour, x is the number of hours she read, and b is the number of pages she has already read.

To find the slope(The number of pages she reads per hour), we can subtract the number of pages she had read at 2 hours from the number of pages she had read at 4 hours:

297 - 195 = 102.

This tells us she read 102 pages over 2 hours. Thus, over 1 hour, she had read 102/2 = 51 hours. This is m. So our equation so far is y = 51x + b

To find b, we can take 195(the pages she had read after 2 hours), and subtract it by the pages she can read over 2 hours(51 * 2), giving us the amount of pages she had already read(b):

195 - (51*2) = 195 - 102 = 93.

So our equation is:
y = 51x + 93.

Work for finding how many hours it will take Kya to read the whole book:

Y is the total number of pages Kya has read when we plug in x hours. However, if we already know the total number of pages in a book, we can plug in that number for Y, and then solve for x to find how many hours it takes for Kya to read the book:

399 = 51x + 93

Subtracting 93 from both sides gets us:

51x = 306

=

x = 6

This means it takes 6 hours for Kya to read the whole book.

Since Kya has already been reading for 4 hours, the time she has left is:

6-4 = 2

So it takes Kya 2 more hours to finish reading the 399 pages in the book.

Hope this helps!

Find the minimal and maximum value of the function y=7 cos x

Answers

Answer:

The minimum and maximum cannot be determined because this is not a quadratic function.

Step-by-step explanation:

A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. The graph of a quadratic function is a curve called a parabola.

Bridget says that when a standard number cube is rolled getting an even number is an outcome. Uma says that getting an even number is an event. Who is correct? Explain

Answers

Uma is correct, because getting an even number is an event.

What is Probability?

The term probability refers to the likelihood of an event occurring.

Given that;

Bridget says that when a standard number cube is rolled getting an even number is an outcome.

And, Uma says that getting an even number is an event.

Now,

We know that;

When a standard number cube is rolled then getting an even number is an event.

Hence, Uma statement is correct.

Thus, Uma is correct, because getting an even number is an event.

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How many x-intercepts does the graph of each quadratic equation have? Show your work.

Answers

Answer:

Step-by-step explanation:

In each case we find the discriminant b^2 - 4ac.

If the discriminant is negative, we have two unequal, complex roots.

If the discriminant is zero. we have two equal, real roots.

If the discriminant is positive, we  have two unequal real roots.

#51:  8v^2 - 12v + 9:  the discriminant is (-12)^2 - 4(8)(9) = -144.  we have two unequal, complex roots

#52:  (-11)^2 - 4(4)(-14) = 121 + 224 = 345.  we  have two unequal real roots.

#53:  (-5)^2 - 4(7)(6) = 25 - 168 (negative).  we have two unequal, complex roots.

#54:  (4)^2 - 16 = 0.  We have two equal, real roots.

Kadeesha has a smart phone data plan that costs $45 per month that includes 10 GB of data, but will charge an extra $25 per GB over the included amount. How much would Kadeesha have to pay in a month where she used 4 GB over the limit? How much would Kadeesha have to pay in a month where she used went over by xx GB?

Answers

Answer:

1. $145

2. 45+25x=total $

Step-by-step explanation:

45+(25•4)=145

Step-by-step explanation:

Given:

10 GB included with plan

$45 per month

$25 per GB over the amount of 10

Need to find out:

How much would Kadeesha have to pay in a month where she used 4 GB over the limit, how much would it be if it went over xx GB?

Let's solve the first problem:

10 GB included + 4 GB (over) =14 total GB

$45=10GB. $25×4= 4 GB over.

$45+$100=$145

Therefore, Kadeesha would have to pay $145 if she went 4 GB over the 10.

Now, let's solve the next problem:

So, for this problem we are going to find the amount it wil be in other various amounts. To do this we will create a chart /table

$45 ------> 10GB

$70 -----> 11 GB

$95 ----> 12 GB

$120 ---> 13 GB

$145 ---> 14 GB

$170 ---> 15 GB

and so on....

but here we can see any given amount will be her usual Phone bill amount ($45), with the 10 GB and an additional $25 for every added GB.

if something is unclear, or seems wrong just let me know!

I hope this helps:)

which statement describes rate of change of the following function? F( x)=3X -7

Answers

To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.
Shifted down
7
7
units
Vertical stretch

Justin surveyed 280 of the students in his school about their favorite color. 98
students said their favorite color was blue. What percentage of the surveyed students
said their favorite color was blue?

Answers

Answer:

[tex] \frac{98}{280} \times \frac{100}{1} [/tex]

[tex]0.35 \times 100 \\ = 35\%[/tex]

Which of the following is a true proportion of the figure based on the triangle proportionality theorem?

A)
h/j=k/i

B)
j/h=j/k

C)
k/j=i/j

D)
h/k=k/i

Answers

Answer:

The correct option is A.

Step-by-step explanation:

When we have two congruent figures, the correspondent sides of the figures are related by the same constant C.

In the case of the image.

h is the left side of the smaller triangle.

h + j is the left side of the larger triangle.

Then we have the relation:

(h + j) = C*h

If we isolate C, we get:

C = (h + j)/h

We can also write this for the other side (the bottom one)

k*C = (k + i)

C = (k + i)/k

Then we have:

(h + j)/h = (k + i)/k

We can rewrite this as:

h/h + j/h = k/k + i/k

1 + j/h = 1 + i/k

We can subtract 1 in each side to get:

j/h = i/k

This is almost the same we can see in option A (its inversed)

If we apply the inverse to both sides, we get:

(j/h)^-1 = (i/k)^-1

h/j = k/i

Which is the same equation that we can see in option A.

Then the correct option is A.


Sorry I’m not very good with this type of math.

Find the mean of this set of data: 45, 177, 153, 162, 43, 33, 6, 78, 122

Answers

Answer:

91

Step-by-step explanation:

Answer:

so to find the mean, add all the numbers

(ie from 45 to 122) then divide the answer by the number of number you have ( ie count from 45 to 122 which is nine numbers in total)

so your presentation will look like

819/9

which is = 91

Gina is shopping for a new bicycle. The price of the bicycle that she likes is $300 and there is an 8% sales tax. What is the total price of the bicycle including sales tax?

Answers

Answer:

$324

Step-by-step explanation:

(1.08)(300) = 324

Answer:

The total price of the bicycle including sales tax is $324.

Explanation:

The price of a bicycle = $300

Rate of sales tax = 8%

Amount of tax = 8% x 300

                     = [tex]\frac{8}{100}[/tex] x 300

                     = 8 x 3

                      = 24

Cost of bicycle including tax= Price of cycle + Amount of tax = 300+24=324  

= $324

Please Answer.\
I am in so much tension already

Answers

Answer:

1:B

2:B

3:C

Step-by-step explanation:

HOPE IT'LL HELP :)

The triangle below has an area of 10 units squared.

Answers

Answer:

x = 5 units

Step-by-step explanation:

area = 1/2bh

10 = 1/2(x)4)

2x = 10

x = 5

Answer:

The value of x (which is also the height of this triangle) is x = 5 units.

Step-by-step explanation:

The formula for the area of a triangle of base b and height h is

A = (1/2)(b)(h).

Here A = 10 units² = (1/2)(4 units)(x).

Multiplying both sides by 2 yields    20 units² = (4units)(x), and thus  20 units²

click on photo! help!

Answers

Answer:

The answer is D) 5, the number of eggs on the charts never exceeds that number.

D is the answer for it

In a '15% off sale, Freya bought a DVD player for £179. 99. What was the original price of this

DVD player?

Answers

The original cost of the DVD player is $ 211.75.

Calulating Original price:

To calculate the original price of an item in case of giving a discount we can use the following formula

Original Price = Selling Price / (1 - Percentage Discount/100)

(Or)

We can calculate the original price by taking a variable as the cost of the item as given below

Here we have

In a '15% off sale, Freya bought a DVD player for £179. 99

Let 'x' be the cost of the DVD player

Then the cost of the DVD player after giving a 15% discount

= x - 15% of x

= x - (15/100) x

= x - 0.15x

= 0.85x

Given that  

Freya bought a DVD player for £179. 99

=> 0.85x = 179. 99  

=> x = 211.75

Therefore,

The original cost of the DVD player is $ 211.75.

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tan took Lily to his friend’s restaurant on a date. The friend told the waiter to remove the $12 dessert from Stan’s bill. Stan tipped the waiter 20% on the reduced bill, which was a $15 tip. Fill in the blanks to write an equation that will determine the amount of the original bill, b.(2 points)
___(b −___) = ___

Answers

$b+$12 is the equation that will determine the amount of the original bill

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that The friend told the waiter to remove the $12 dessert from Stan’s bill.

Stan tipped the waiter 20% on the reduced bill, which was a $15 tip

We need to write an equation that will determine the amount of the original bill b.

Let us find what 20% of amount will be 15

20/100×b=15

0.2x=15

b=15/0.2=75

The reduced bill is $75.

As before $12 is removed

$b+$12=$87

$87 is the original bill and 15 is the tip.

Hence, $87 is the original bill.

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find the volume of this triangular prism.

Answers

The volume of the triangular prism is 120 cm cube.

How to find the volume of a triangular prism?

A triangular prism  is a three-sided prism.  The volume of a triangular prism can be represented as follows:

volume of a triangular prism = 1 / 2 bhl

where

b = base of the triangular faceh = height of the triangular facel = height of the triangular prism

Therefore,

b = 10 cm

h = 12 cm

l = 6 cm

Therefore,

volume of a triangular prism = 1 / 2 × 10 × 12 × 6

volume of a triangular prism = 1 / 2 × 120 × 6

volume of a triangular prism = 60 × 6

volume of a triangular prism = 120 cm³

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find the height of the prism is the volume is 740cm cubed edulastic

Answers

Answer is A!! If you do 9 1/4 x 8 you get 74! Then if you divide 740 by 74 you get 10!!

At SaveRite, a 4-ounce carton of juice costs $0.85 and a 16-ounce carton costs $2.70. Which size carton would you buy to pay the least amount per ounce?

Answers

Answer:

16-ounce carton

Step-by-step explanation:

you divide by the cost by the amount of ounces per cent and when buying the  4 ounce one is 21 cents per ounce while the 16 ounce one is 16 cents per ounce

How do you find the coordinates of a point example?

Answers

To find the coordinates of a point in a coordinate system, do the inverse. Start at the point and trace a vertical line up or down to the x-axis. There you have your x-coordinate. Then repeat the process, but this time follow a horizontal line to determine the y-coordinate.

A point is identified by its ordered pair of (x, y). The first number represents the x-coordinate, while the second represents the y-coordinate.

To graph a point, you draw a dot at the coordinates of the ordered pair. It's usually a good idea to begin at the beginning.

An ordered pair of integers, such as an x-coordinate, which is a number on the x-axis, and a y-coordinate, which is a number on the y-axis, can be used to identify each point. Parentheses are used to indicate ordered pairings (x-coordinate, y-coordinate). The starting point is at (0,0).

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find the median and mean of the data set below: 29,8,11,29,29,6,49

Answers

29 i think sorry if i am wrong
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