Calculate the mean of this data set: 12, 35, 44, 74, 23, 49, 45, 18, 90, 56, 84,
38, 7. What is the sample proportion of numbers that are within +10 of
the mean? (Round off the mean to the nearest integer for your calculations.)
Answers
Answer: 0.38
Step-by-step explanation:
The mean is the sum of all the observations divided by the number of observations. It is 44.2 (rounded off to 44) Next is fraction observations that lie between 34-35 (just answered this and it is correct)
Related Questions
Find the surface area of the square pyramid shown. Label the net to help you.
I have to show work
Answers
Answer: 40 inches squared
Labels are in the pictures
Step-by-step explanation:
To find the surface area, find the area of each side.
Square (base) : side * side = 4*4 = 16
Triangle (sides) : (base * height)/2
Assuming each side is a isosceles triangle, the base 4/2 = 2
(2*6)/2 = 12/2 = 6
Since there are 4 triangles, we can multiply 6 by 4 to get the combined area. We then add the area of the square to get the final result.
6*4 + 16 = 24+16 = 40
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Answers
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
(-5)(4.2) = -21
(-7)(-3) = 21
(4)(5) = 20
(2.5)(-9) = -22.5
So, the pairs of numbers and their products are as follows:
(-5)(4.2) = -21 matches with -21.
(-7)(-3) = 21 matches with 21.
(4)(5) = 20 matches with 20.
(2.5)(-9) = -22.5 matches with -22.5.
I hope this helps!
Please read the attached Newsela article, "Pets can make people feel happier and healthier" and complete the attached Double Entry Literature form.
Answers
Answer:
this isnt math
Step-by-step explanation:
The box plots shown represent the average mileage of two different types of cars. Use the box plots to compare the data sets.
Drag each value to show if it is greater for SUVs, greater for sedans, or if there is not enough information to tell.
Answers
Answer:
Step-by-step explanation:
A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.
What is the volume, in cubic centimeters, of the cereal box?
Use your knowledge of simulations to answer the questions below.
5. Eastside Middle School has 75% student participation in the fall carnival. Determine which of
the simulations below could model the probability of a student participating.
rolling a number cube, where rolling an odd number represents students who participate in
the fall carnival
spinning a spinner with the equal sections marked with the letters A-E, where spinning a
vowel represents students who participate in the fall carnival
spinning a spinner with four equal sections numbered 1-4, where spinning anything but 1
represents students who participate in the fall carnival
Answers
Answer:
5. Eastside Middle School has 75%
Step-by-step explanation:
Need help please
The solution to:
x^3 + 12 = -52
x =
Answers
Answer: y=x (to the power of 3) + 12
y= -52x
Step-by-step explanation:
William is a very busy professional DJ. Last year, he worked at 10-anniversary parties and 26 other events.
What is the probability that one of the events William worked on last year, selected at random, was an anniversary party?
Write your answer as a fraction or whole number.
Answers
Answer:
hello
Step-by-step explanation:
The required probability that William worked on last year was an anniversary party is 1/ 36.
As mentioned in the quesiton,
William is a very busy professional DJ. Last year, he worked at 10-anniversary parties and 26 other events.
Probability can be defined as the ratio of favorable outcomes to the total number of events.
Here,
Total sample space = 26 + 10 = 36
Number of favorable outcomes = 1
the probability that William worked on last year is was an anniversary party,
= Favorable outcome/sample space
= 1 / 36
Thus, the required probability that William worked last year is 1/ 36.
Learn more about probability here:
brainly.com/question/14290572
#SPJ2
I need help please I will put in an image. and I only have 18 points sorry
Answers
Answer:
what
Step-by-step explanation:
Find the surface area of the regular pyramid.
Answers
Answer:
33
Step-by-step explanation:
3*3=9
4*3*2=24
24+9=33
Answer:
Multiply the side length of the base by the slant height and divide by 2 then multiply it by 4. This will give you the answer. Hope this helps!
There are currently 6,210 fish in a lake. If the number of fish in the lake increased by 15 percent during the last year and 20 percent during the year before that, how many more fish are in the lake currently than in the last two years ago?
Answers
I’m pretty sure the answer should be 1,710 if not i’m sorry
Answer:
1710 fish
Step-by-step explanation:
Let the number of fish in the lake last year be 'x'
The equation becomes-
x + 15x/100=6210 (This is because 15% of x is added in x to become
6210... hope you understand)
x + 15x/100 = 6210
115x/100 = 6210
23x/20 = 6210
x = 6210 * 20/23
x = 270 * 20
x = 5400
Therefore- The number of fish last year = 5400
Now, let the number of fish in the lake 2 years ago be 'y'
The equation becomes-
y + 20y/100 = 5400 (Same logic as last time)
y + 20y/100 = 5400
120y/100 = 5400
24y/20 = 5400
6y/5 = 5400
y = 5400 * 5/6
y = 900 * 5
y = 4500
Therefore- Fish in the lake two years ago = 4500 fish
Difference between current and two years ago = 6210-4500
= 1710 fish
Hope you understood the answer and I hope it helps you :)
my brain is not functioning anymore pls help
Answers
What is 2x + 8 & 4x - 4 ?
Don't use a bot have actual proof please.
Answers
Answer:
ok well I give you different ones and you can take whichever one goes with what you're doing.
Step-by-step explanation:
Which is an equivalent expression for (32 • 54)3?
32 • 512
35 • 57
36 • 512
1518
Answers
Because you distribute the three to the 54.
Solve for X (I have what I think the answer is in the picture)
Thanks In advance ;) (Added pic )
Answers
Answer:
Step-by-step explanation:
You are correct. When dividing like bases, you subtract the lower exponent from the upper:
x - 3 = 2 so
x = 5. Good!!
bases you subtract the exponenets.
Mr. Franklin recorded the number of push-ups his students completed in thirty seconds. Which statement below is a reasonable conclusion based upon the information in the histogram?
A. Four students completed 1 to 5 push-ups in thirty seconds.
B. Most students completed 21 to 25 push-ups in thirty minutes.
C. No one completed 25 push-ups in thirty seconds.
D. Mr. Franklin has more than 20 students in his class.
Answers
Answer:
A
Step-by-step explanation:
because it says that "A. Four students completed 1 to 5 push-ups in thirty seconds." and if you look at the graph 4 students did 1 to 5 push-ups.
Answer:
a
Step-by-step explanation:
Find the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards.
Answers
Answer:
A deck of cards contains RED cards numbered 1,2 and BLUE cards numbered ... Patricia will draw 8 cards from a standard 52-card deck with replacement. ... Outcome: any of the possible results of an experiment in probability. ... Correct answers:$\frac{7}{9}$7/9 ... Event A: rolling a 6-sided fair number cube and getting 1Step-by-step explanation:
The probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards is 1/26.
To find the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards, we need to calculate the probabilities of each event and then multiply them together since the events are independent (the outcome of one event does not affect the outcome of the other event).
1. Probability of rolling an odd number on a fair number cube:
A fair number cube has 6 faces with numbers 1 through 6. Out of these, three numbers are odd: 1, 3, and 5. So, the probability of rolling an odd number is 3/6, which simplifies to 1/2.
2. Probability of drawing a 7 of any suit from a standard deck of cards:
A standard deck of cards has 52 cards. There are four 7s in the deck (one for each suit: hearts, diamonds, clubs, and spades). So, the probability of drawing a 7 is 4/52, which simplifies to 1/13.
Now, multiply the probabilities together:
Probability = (Probability of rolling an odd number) * (Probability of drawing a 7)
Probability = (1/2) * (1/13)
Probability = 1/26
Therefore, the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards is 1/26.
To know more about probability, refer here:
https://brainly.com/question/31848949
#SPJ6
Can someone help pleaseee
Answers
Answer:
The answer is n=16b
Step-by-step explanation:
when you multiply 16*b you get the anwser of n.
1*16=16
2*16=32
3*16=48
Answer:
N = 16B
Step-by-step explanation:
The constant rate of change is 16 so just follow the constant rate of change.
Mandissa and Katelynn each make a pitcher of strawberry lemonade. Mandissa wants her drink to be more strawberry flavored with less lemon. She uses 2 1/4 times as many strawberries as Katelynn uses, and 2/3 the amount of lemons. If Katelynn uses 1/3 cup of strawberries and 6 lemons to make her pitcher of lemonade, how many strawberries and lemons will Mandissa use?
A:) 3 cups of strawberries and 6 2/3 lemons
B:) 1 11/16 cups of strawberries and 4 lemons
C:) 3 cups of strawberries and 4 lemons
D:) 1 11/16 cups of strawberries and 6 2/3 lemons
Answers
Answer:
B:) 1 11/16 cups of strawberries and 4 lemons
Step-by-step explanation:
You want to know how many cups of strawberries and how many lemons Mandissa uses in her lemonade if she uses 2 1/4 times 3/4 cups of strawberries, and 2/3 times 6 lemons.
StrawberriesMandissa's recipe has strawberries in the amount of ...
(2 1/4) × (3/4 cup) = (9/4)(3/4) cups = 27/16 cups = 1 11/16 cups
LemonsMandissa's recipe has lemons in the amount of ...
(2/3) × (6 lemons) = (2/3)(6) lemons = 4 lemons
Mandissa uses 1 11/16 cups of strawberries, and 4 lemons, matching choice B.
<95141404393>
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answers
Answer:
Step-by-step explanation:
C
1. The figure shows a graph of the function of f(x) in the xy-coordinate plane, with the vertex at (1,9) and the zeros
at -2 and 4.
x
5 6 7 8 9
The function g is defined by g(x) = -3x + 2. Which statements are true? Select ALL that apply.
f{-2) is greater than g(-2).
f{-1) is less than g(-1).
f{0) is greater than g(0)
f(1) is less than g(1).
f(2) is greater than g(2).
Answers
Answer:
f{0) is greater than g(0) and f(2) is greater than g(2).
Step-by-step explanation:
f{0) is greater than g(0) = f(0)=8 and g(0)=2
f(2) is greater than g(2) = f(2)=8 and g(2)= -4
The two statements that are correct are f(0) is greater than g(0), and f(2) is greater than g(2).
What is the general equation of parabola?The general equation of a parabola is given as,
\(y=a(x-h)^2+k\)
where (h,k) is the coordinate of the vertex of the parabola.
The equation of the parabola with vertex (1,9) can be written as,
\(y=a(x-h)^2+k\\\\y=a(x-1)^2+9\)
Now, the value of a can be found by putting one zero of the parabola,
\(y=a(4-1)^2+9\\\\0=a(3)^2+9\\\\-9=a(3)^2\\\\-9=a9\\\\a=-1\)
Thus, the equation of the parabola can be written as y=-(x-1)²+9.
A.) The value of the two functions when the value of x is -2 can be written as,
\(f(x)=-(x-1)^2+9\\\\f(-2)=-(-2-1)^2+9\\\\f(-2)=0\)
\(g(x) = -3x + 2\\\\g(-2) = -3(-2) + 2\\\\g(-2)=8\)
Therefore, f(-2) is less than g(-2).
B.) The value of the two functions when the value of x is -1 can be written as,
\(f(x)=-(x-1)^2+9\\\\f(-1)=-(-1-1)^2+9\\\\f(-2)=5\)
\(g(x) = -3x + 2\\\\g(-1) = -3(-1) + 2\\\\g(-1)=5\)
Therefore, f(-1) is equal to g(-1).
C.) The value of the two functions when the value of x is 0 can be written as,
\(f(x)=-(x-1)^2+9\\\\f(0)=-(0-1)^2+9\\\\f(0)=8\)
\(g(x) = -3x + 2\\\\g(0) = -3(0) + 2\\\\g(0)=2\)
Therefore, f(0) is greater than g(0).
D.) The value of the two functions when the value of x is 1 can be written as,
\(f(x)=-(x-1)^2+9\\\\f(1)=-(1-1)^2+9\\\\f(1)=9\)
\(g(x) = -3x + 2\\\\g(1) = -3(1) + 2\\\\g(1)=1\)
Therefore, f(1) is greater than g(1).
E.) The value of the two functions when the value of x is 2 can be written as,
\(f(x)=-(x-1)^2+9\\\\f(2)=-(2-1)^2+9\\\\f(2)=8\)
\(g(x) = -3x + 2\\\\g(2) = -3(2) + 2\\\\g(2)=-4\)
Therefore, f(2) is greater than g(2).
Thus, the two statements that are correct are f(0) is greater than g(0), and f(2) is greater than g(2).
Learn more about Equation of Parabola:
https://brainly.com/question/4074088
Answer all of these questions.
1) A survey of 4,000 Americans found that 28% did not vote in the local election.
Population:
Sample:
2) The average points scored by every third member of the basketball team is 13.6.
Population:
Sample:
3) A study found that 55% of college graduates took out student loans to pay for college.
Population:
Sample:
4) In a Washington Post poll, 72% of readers indicated they were happy with the economy.
Population:
Sample:
Answers
Answer:
Population: All Americans eligible to vote in the local election
Sample: 4,000 Americans who were surveyed
Population: All members of the basketball team
Sample: Every third member of the basketball team
Population: All college graduates
Sample: The group of college graduates studied in the study
Population: All readers of the Washington Post
Sample: The group of readers who responded to the poll
Answer: Population: All Americans eligible to vote in the local election
Sample: 4,000 Americans who were surveyed
Population: All members of the basketball team
Sample: Every third member of the basketball team
Population: All college graduates
Sample: The group of college graduates studied in the study
Population: All readers of the Washington Post
Sample: The group of readers who responded to the poll
Step-by-step explanation: That's gotta be it
The length of ribbons found at a seamstress are listed. 3, 11, 11, 13, 13, 21 What is the appropriate measure of variability for the data shown, and what is its value? The mean is the best measure of variability and equals 11. The median is the best measure of variability and equals 11.5. The range is the best measure of variability and equals 18. The IQR is the best measure of variability and equals 2.
Answers
Answer:
(d) The IQR is the best measure of variability and equals 2.
Step-by-step explanation:
You want the best measure of variability of the data set {3, 11, 11, 13, 13, 21}.
VariabilityMean and median are measures of the center of the set of data, not its variability. The variability is measured by the range, interquartile range (IQR), or standard deviation.
Here, the range is the difference between the maximum and minimum values, 21 -3 = 18. The quartiles are 11 and 13, so the IQR is 13 -11 = 2.
OutliersThe minimum and maximum values are more than 1.5×IQR = 3 away from the upper and lower quartile values, so can be considered to be outliers. When we exclude the outliers from the data set, we have ...
{11, 11, 13, 13}
The best measure of the variability is the IQR, which is 2—corresponding to choice 4.
<95141404393>
PLEASE HELP ME ASAP!!!!!!!!!! THE QUESTION AND STUFF IS IN THE PHOTO BELOW!!!
Answers
Answer:
8,29,11,12
Step-by-step explanation:
Use pythagoren theorem
a^2+b^2=c^2
Answer: 8,29,11,12
Step-by-step explanation:
Tyra's family is spending the afternoon in Millersville. They plan to see a movie and then
explore the town. The movie will cost the family $36, and parking costs $4 per hour.
Write an inequality that shows that Tyra's family spends less than their limit.
It will be an addition problem on one side that adds what they have spent. Remember,
since it is an inequality, it won't have an equal sign. It will have greater than > or less
than < sign. Also, it will have a variable. What is the unknown in this scenario?
Answers
Answer:
? > 4x+36
Where x is the number of hour of parking
? is unknown, which is their Bugget/Limit
Brainliest Maybe?
Which equation shows 16+4y=−3x in standard form?
Answers
Answer:
3x + 4y =-16 = 16+4y=−3x
Can someone please help? :)
Answers
There are 12 squares and 9 circles. What is the simplest ratio of circles to total shapes?
Answers
Answer:
0
Step-by-step explanation:
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
For an equation of the form ax^2 + bx+ c = 0, where the graph crosses the y-axis once and does not intersect the x-axis. Describe the solution(s) of the equation.
(picture)
Answers
Answer:a
Step-by-step explanation:
The solution to the equation ax² + bx + c = 0 , has a graph that crosses the y-axis once and does not intersect the x-axis, then the equation has one real root and two complex conjugate roots that lie on either side of the axis of symmetry.
What is Quadratic Equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
The roots of the quadratic equations are
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
where ( b² - 4ac ) is the discriminant
when ( b² - 4ac ) is positive, we get two real solutions
when discriminant is zero we get just one real solution (both answers are the same)
when discriminant is negative we get a pair of complex solutions
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
If the graph of the equation ax² + bx + c = 0 crosses the y-axis once, it means that the equation has one real root. This is because when x = 0, the equation becomes:
c = 0² + 0 + c = c
Therefore, the point (0, c) is on the y-axis, which means the graph crosses the y-axis once.
If the graph does not intersect the x-axis, it means that the discriminant b² - 4ac is negative. This is because the discriminant determines the nature of the roots of a quadratic equation, and when it is negative, the roots are complex (not real) and the graph does not intersect the x-axis.
So, the solution(s) of the equation ax² + bx + c = 0 are:
x = (-b ± √(b² - 4ac)) / 2a
Since the discriminant is negative, the term inside the square root is negative, and there are no real solutions for x. Instead, the solutions are complex conjugates of the form:
x = (-b ± i√(4ac - b²)) / 2a
where i is the imaginary unit. Since the real part of these solutions is -b/2a, which is the axis of symmetry of the parabola, and the parabola does not intersect the x-axis, the complex roots will be a conjugate pair that lie on either side of the axis of symmetry.
Hence , the quadratic equation is solved
To learn more about quadratic equations click :
https://brainly.com/question/25652857
#SPJ2
Mrs. Lorentz bought 12 pounds 8 ounces of sugar. This is 1/4 of the sugar she will use to make sugar cookies in her bakery this week. If she uses 10 ounces of sugar for each batch of sugar cookies, how many batches of sugar cookies will she make this week?
Answers
Answer:
153
Step-by-step explanation: