Answers
Answer:
Option A
Step-by-step explanation:
Since its an exponential of a decimal number, as x goes on increasing the graph will start going to y=0.
You can plot the graph on any online graphing tool and see for yourself :)
Answer:
Option A
EXPLANATION
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Related Questions
A popular video game claims that the average time needed to reach level 10 paladin is 3 hours with a standard deviation of 0.4 hours. james thinks that he and his four friends are more skilled than the average gamer because it took them an average of only 2.5 hours. which of the following is the most restrictive level that would validate his claim? upper-tail values a 5% 2.5% 1% critical z-values 1.65 1.96 2.58 1% 2.5% 5% 10%
Answers
The probability that the claim of James is correct is 1%.
What is a standard error?The standard deviation of a statistic's sample distribution, or an approximation of that standard deviation, is its standard error. The standard error of the mean is the term used when the statistic is the sample mean.
In order to know if the claim of James is correct or not, firstly we need to determine the standard error. The standard error is the ratio of the standard deviation and the square root of the sample. Therefore, the standard error can be written as,
[tex]\rm Standard\ Error, SE =\dfrac{\sigma}{\sqrt n} = \dfrac{0.4}{\sqrt5} =0.178[/tex]
Thus, the standard error is 0.178.
Further, The z-score is defined as the distance from the sample to the population mean in units of standard error. Therefore, the z-score can be written as,
[tex]z = \dfrac{X-\mu}{SE}=\dfrac{(3- 2.5)}{0.178} = 2.81[/tex]
Using the Z-table in order to know the probability of the claim of James is correct or not, therefore, at this z-score, the probability is 0.9974≈1.00%.
Hence, the probability that the claim of James is correct is 1%.
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HELP ASAP ⚠️
ITS IXL
Answers
Answer:
4 I think
Step-by-step explanation:
If im thinking this out correctly you would divide 32 by the number of q which would be 32 divided by 8 which is 4.
I HOPE THIS HELPS!!
The diagram shows rectangles 1, 2, 3, and 4. WHICH ARE SIMILAR
Answers
The given rectangles 2 and 3 are similar.
What are similar figures?Similar figures mean when two figures are of the same shape but are of different sizes. In other words, two figures are called similar when they both have a lot of the same properties but still may not be identical.
From the rectangle 2 and 3,
18/40 = 36/80
9/20 = 9/20
So, figure 2 and 3 are similar
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40 Points! Brainliest for correct answer! A student in a local high school prepared a survey question asking each student what his or her favorite male and female actors are. Which of the following methods will provide a sample that will represent the population of students as a whole?
A. Posting the question on the Internet.
B. Instant messaging every 9th person on the phonebook
C. Mailing a questionnaire to every student’s home.
D. Drawing 50 names from a hat containing the names of every student in the school.
Answers
Answer:
D. Drawing 50 names from a hat containing the names of every student in the school.
Sample which represents the population of students as a whole is given by drawing 50 names from a hat containing the names of every student in the school.
What is sample?" Sample is the method of representing a small set of data to give overall picture of whole data. It is used in research."
According to the question,
Survey was conducted on students to know their favorite male and female actors.
As per the options given,
A. Posting the question on the internet does not give any sample. Here no number of students is mentioned. No sample is collected.
Option(A) is not the correct answer.
B. Instant messaging every 9th person on the phonebook also not provide any small set of group. No conclusion can be taken out from this information. It does not represent a sample.
Option(B) is not the correct answer.
C. Mailing a questionnaire to every student's home does not provide any number of students for sampling.
Option(C) is not the correct answer.
D. Drawing 50 names from a hat containing the names of every student in the school. Here 50 samples of students are taken to represents a population of students as a whole.
Hence, Option(D) is the correct answer.
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What is the pattern as the exponents decrease?
subtract 5 from the previous value
subtract 100 from the previous value
divide the previous value by 5
divide the previous value by 25
Answers
Answer:
divide the previous value by 5
Step-by-step explanation:
5^2=25, 5^1=5, 25/5=5
The answer is C :)
Have a nice day
Correct on edge.
11. Simplify the equation below.
(12x +9y-15) + '. (&x-12 y-20)
A. 10x + 3y -15
B. 10x + 3y - 5
C. 10x +3y +15
D. 10x + 3y +5
Answers
i think it should be answer B
I believe its also b after working it out for around 20 minutes i have to come to the conclusion that its B this can be APPROVED by the nation math's government department
Which of the following z-values, standard deviations, and sample sizes produce a margin of error of 0.95? m e = startfraction z times s over startroot n endroot endfraction z = 2.14; s = 4; n = 9 z = 2.14; s = 4; n = 81 z = 2.14; s = 16; n = 9 z = 2.14; s = 16; n = 81
Answers
The z-values, standard deviations, and sample sizes that produce a margin of error of 0.95 is z = 2.14; s = 4; n = 81.
What is the margin of error?The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The wider the margin of error, the less confident one should be that a poll result reflects the outcome of a population-wide survey.
The formula of the margin of error is given by the formula,
[tex]MOE = Z_{\gamma}\times \dfrac{\sigma}{\sqrt{n}}[/tex]
A.) z = 2.14; s = 4; n = 9
The margin of error is,
[tex]MOE = Z_{\gamma}\times \dfrac{\sigma}{\sqrt{n}}[/tex]
[tex]MOE = 2.14\times \dfrac{4}{\sqrt{9}}\\\\\\MOE =2.85[/tex]
B.) z = 2.14; s = 4; n = 81
The margin of error is,
[tex]MOE = Z_{\gamma}\times \dfrac{\sigma}{\sqrt{n}}[/tex]
[tex]MOE = 2.14\times \dfrac{4}{\sqrt{81}}\\\\\\MOE =0.9511[/tex]
C.) z = 2.14; s = 16; n = 9
The margin of error is,
[tex]MOE = Z_{\gamma}\times \dfrac{\sigma}{\sqrt{n}}[/tex]
[tex]MOE = 2.14\times \dfrac{16}{\sqrt{9}}\\\\\\MOE =11.413[/tex]
D.) z = 2.14; s = 16; n = 81
The margin of error is,
[tex]MOE = Z_{\gamma}\times \dfrac{\sigma}{\sqrt{n}}[/tex]
[tex]MOE = 2.14\times \dfrac{16}{\sqrt{81}}\\\\\\MOE =3.80[/tex]
hence, the z-values, standard deviations, and sample sizes that produce a margin of error of 0.95 is z = 2.14; s = 4; n = 81.
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Answer:
B
Step-by-step explanation:
On edge
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below. Studied: Did Not Study: Part 1: Calculate the mean of the group that studied, rounded to the nearest tenth. Part 2: Calculate the mean absolute deviation of the group that studied, rounded to the nearest tenth. Part 3: How many of the scores (from the group that studied) are within one mean absolute deviation of the mean.
Answers
The evaluation of the figures needed for the considered survey are:
The mean of the considered data is 1667/18 ≈ 92.61The mean of these 18 absolute deviations comes out as [tex]91.8/18 \approx 5.1[/tex]The number of scores which are within one mean absolute deviation of the mean is 10How to find the mean absolute deviation of a discrete data?
Suppose the data specified is of n sized as [tex]x_1, x_2, \cdots , x_n[/tex]
Let this data's mean be [tex]\bar{x}[/tex]
Then, the mean absolute deviation of this data is the mean of the absolute differences of the observations from the mean of the data they belong to.
It is calculated as:
[tex]M.A.D = \dfrac{\sum_{i=1}^n|x_i-\bar{x}|}{n}[/tex]
The data is missing from the problem statement, and is as shown below:
Studied: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89Calculating the needed figures part by part:
Part 1: Mean of the group that studied, rounded to the nearest tenth.
Mean is the sum of observations divided by number of observations.
The sum of 18 observations: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84
is 1667. Thus, its mean is 1667/18 ≈ 92.61 ≈ [tex]\bar{x}[/tex]
Part 2: The mean absolute deviation of the group that studied:
The absolute deviations of 18 observations: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84
from the mean [tex]\bar{x}[/tex] ≈ 92.61 are approx:
[tex]|92.61 - 88| = 4.6\\|92.61 - 100| = 7.4\\|92.61 - 94| = 1.4\\|92.61 - 79| = 13.6\\|92.61 - 92| = 0.6\\|92.61 - 100| = 7.4\\|92.61 - 95| = 2.4\\|92.61 - 83| = 9.6\\|92.61 - 89| = 3.6\\|92.61 - 99| = 6.4\\|92.61 - 100| = 7.4\\|92.61 - 91| = 1.6\\|92.61 - 89| = 3.6\\|92.61 - 95| = 2.4\\|92.61 - 100| = 7.4\\|92.61 - 93| = 0.4\\|92.61 - 96| = 3.4\\|92.61 - 84| = 8.6\\[/tex]
Their sum is 91.8 approx.
Thus, the mean of these 18 absolute deviations comes out as
[tex]91.8/18 \approx 5.1[/tex]
Part 3: The number of scores which are within one mean absolute deviation of the mean
The range within one absolute deviation of the mean is [tex][92.61 - m.a.d, 92.61 + m.a.d] = [92.61 - 5.1, 92.61 + 5.1] = [87.51, 97.71][/tex]
The values from the studied group which is in this range are:
88, 94, 92, 95, 89, 91, 89, 95, 93, 96
They are total 10 in counts.
Thus, the number of scores which are within one mean absolute deviation of the mean is 10
Thus, the evaluation of the figures needed for the considered survey are:
The mean of the considered data is 1667/18 ≈ 92.61The mean of these 18 absolute deviations comes out as [tex]91.8/18 \approx 5.1[/tex]The number of scores which are within one mean absolute deviation of the mean is 10Learn more about mean absolute deviation here:
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The quotient of 8. 4 times 10 Superscript 9 and a number n results in 5. 6 times 10 Superscript 27. What is the value of n? 1. 5 times 10 Superscript negative 18 1. 5 times 10 Superscript negative 3 1. 5 times 10 Superscript 3 1. 5 times 10 Superscript 18.
Answers
By simplifying given statement we got that if the quotient of [tex]8.4\times10^ 9[/tex] and a number n results in [tex]5. 6\times 10 ^{27}[/tex] then n is equal to [tex]1.5\times10^{-18}[/tex]
What is quotient?Result obtained after division is called quotient
Here given that "The quotient of 8. 4 times 10 Superscript 9 and a number n results in 5. 6 times 10 Superscript 27"
We can write it as
The quotient of [tex]8.4\times10^ 9[/tex] and a number n results in [tex]5. 6\times 10 ^{27}[/tex]
we can write it as
[tex]\frac{8.4\times10^ 9}{n} =5. 6\times 10 ^{27}[/tex]
Now we can simplify it as
[tex]n= \frac{8.4\times10^ 9}{5. 6\times 10 ^{27}} \\\\n= \frac{8.4}{5.6} \times\frac{10^9}{10^27} \\\\n= 1.5\times 10^{-18}[/tex]
By simplifying given statement we got that if the quotient of [tex]8.4\times10^ 9[/tex] and a number n results in [tex]5. 6\times 10 ^{27}[/tex] then n is equal to [tex]1.5\times10^{-18}[/tex]
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A Machine produces 374 bolts and 33 minutes at the same rate how many minutes will it take to produce 272 bolts
Answers
Answer:
it would take the machine 24 minutes to produce 272 bolts.
Lucia works as a plumber. She worked for 6 days and earned $938.94. How much did Lucia
earn per day?
Answers
Divide total pay by number of days.
938.94 / 6 = 156.49
They earned $156.49 per day
PLEASE HELP WILL GIVE BRIANLIEST!!!
Answers
Point A is an outlier because if we were to put the best fit line along with the points according to the most amount of points, point A is the farthest away from the line and thus is the outlier.
Hope that helps!
??????????? help please
Answers
Linear
Exponential
quadratic
Pls mark me as the Brainliest!!!
Have a good day :)
Your job is to figure out how to make a "silver mile". Here in the United States we could do this with nickels, dimes, quarters, half-dollars, or silver dollars. I found on the United States Mint website that the Susan B. Anthony silver dollar was 1.04 inches in diameter. Making a mile using just this coin would be an easy calculation. We need a more interesting challenge. We are going to create a silver mile following a specific set of rules. You may need to cover a little more than the required distance since you cannot use fractional parts of the coins. Here are the rules:
1) Lay down enough Susan B. Anthony silver dollars to cover half of the mile.
2) Cover one-third of the remaining distance with half-dollars.
3) Use quarters to cover one-fourth of the remaining distance.
4) With dimes, cover one-fifth of the remaining distance,
5) Fill in the remaining distance with nickels.
What is the total value of the coins in this mile?
Please support this by showing evidence. Thanks a lot :)
Answers
The total value of coins to create a silver mile following the specific rules stated is $38,114.18
Distance left:63360 - 31650.48 = 31679.52 inches
A third of the distance is missing: 10559.84 inches
Diameter of the half-dollar: 1.205 inThis means 10,559.84 inches/ 1.205 in = 8763.35 rounded to 8764
Total distance coverd 8,764 x 1.205 in = 10560.61
Total distance left: 31679.52 - 10560.61 = 21118,91 / 4 = 5279.72
Diameter of quarters: 0.750 inchesThis means 5279.72 / 0.750 =7039.62 rounded to 7040
7040 x 0.750 = 5280
Total distance left = 21118,91 - 5280 = 15,838.91 / 5 = 3167.782
Diameter of dimes: 0.705This means 3167.82 / 0.705 = 4493.36 rounded to 4494
0.705 x 4494 = 3168.27
Total distance left = 15,838.91 - 3168.27 = 12670.64
Diameter of the nickel: 0.835This means 12670.64/ 0.835 = 15174.41 rounded to 15175
How much money was used?For this change the coins to dollars:
Susan B. Antony Silver dollars: 30462 = $30462
Half-dollars: 8764 = $4382
Quarters: 7040 = $1760
Dimes: 4494 = $561.75
Nickels: 15175 = $948.43
Total: $38114,18
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Use the distributive property to write an expression that is equivalent to the expression below. 8(-x-1/2)
Answers
Answer:
I think is -8x-4 let me know if im right
Step-by-step explanation:
Which of the following is a binomial with degree 2?
A)2x^3 + xy
B)2xy^2
C)3x + 3x^2
D)2 + 5x-3x^3
Answers
Answer:
the answer should be C. 3x + 3x^2
|
Evaluate 5c + cd when c
--
and d = 15.
Answers
need help this is due soon and thank you
Answers
Answer:
6.9
0.1
Steve, 0.3 metres
5% 1/5 0.5
I know I might be asking too much of math qns..
Question:
A party pack consists of x chocolate bars and x cans of drinks. Each chocolate bar costs $3 and each can of drink costs $1. The total cost for the chocolate bars and drinks in a party pack is more than $10. Find the minimum number of choclate bars in a party pack.
Btw, my teacher told me that the ans was 3. I'm kind of confused.
Answers
Answer:
3
Step-by-step explanation:
Your teacher is correct. The reason is because it is the total cost of both the chocolate and the can… if the choc is $3 and can is $1, you can have 3 chocolate bars because when you add the one can which is one dollar, it equals $10
3x3 = 9
9+1 = 10
Therefore 3 is the answer
The sides of a triangle are 20, 51, and 50. Use the Pythagorean Theorem to determine if the triangle is right, acute, or obtuse. The triangle is because the square of the largest side the sum of the squares of the other two sides.
Answers
Answer: Obtuse Triangle
Step-by-step explanation:
It is not right, because a^2 + b^2 doesn’t equal c^2. It is Actually obtuse because a^2 + b^2 is greater than c^2 because 20^2+50^2 =2900 which is greater than 2601 or 51^2.
Which function is shown on graph? (see image i posted)
Answers
Answer:
Hi, it would be A. f(x)=-1/2cos x
Step-by-step explanation:
Hope it helps!
If f(x) = 3(x+5) +-, what is f(a+2)?
xx, (a?
X
Answers
Given a defined function
f(x), we can evaluate the function at any constant by replacing every x
with that constant.So if f(x)=3x+5x, then f(a+2)=3(a+2)\+5a+2
Cuantos son 47 millones de pesos mexicanos a dolares?
Answers
Answer:
47,000,000 Mexican Peso equals 2,308,164.50 United States Dollar
janet works at a computer supply store and earns 4.5% commission on her total sales.last week she earned $130.50 in commission.caculate her total sales for last week.
Answers
Divide the amount of commission by the percent:
130.50 / 4.5%
130.50 / 0.045 = $2,900
Answer: $2,900
A merchant bought a table for ₹8250 and spent ₹175 on its transportation. He
sold the table for ₹7500. Find its gain or loss?
Answers
Answer: Loss of 925
==============================================
Work Shown:
Total cost = 8250+175 = 8425
Total revenue = 7500
Profit = revenue - cost = 7500 - 8425 = -925
Profit = -925
The negative profit means the merchant lost money.
Answer: The merchant lost 575 dollars or whatever you call them.
Step-by-step explanation:
7500+175=7675
8250-7675= 575
A car rental costs $50 plus $0.17 per mile driven. Write an
expression that gives the total cost in dollars for driving m miles. Then
find the cost for driving 150 miles
Answers
The total cost for driving 150 miles would be $75.50.
A line passes through $A(1,1)$ and $B(100,1000)$. How many other points with integer coordinates are on the line and strictly between $A$ and $B$
Answers
Answer:
8
Step-by-step explanation:
Integers are whole numbers or opposite of whole numbers.
The slope is 111/11.
How?
Change of y is 1000-1=999.
Change of x is 100-1=99.
The slope is 999/99=111/11.
So if we start at (1,1) and we rise 111 and run 11 right, we get (12,112).
*Rise effects y and run effects x.
If we do that again from (12,112) we get (23,223).
Following the pattern of going up 111 and right 11 from each new location discovered we get all the of these points:
Start (1,1)
(12,112)
(23,223)
(34,334)
(45,445)
(56,556)
(67, 667)
(78, 778)
(89, 889)
(100, 1000) which is the end.
So we just need to count tthe points between begin point and end point which is 8 points.
what are the zeros of this function? HELP PLEASE!!
Answers
Answer:
They are decimal points.
Special right triangles please help!
Find the variable
Answers
Answer:
11. s = 14
12. k = 24
Step-by-step explanation:
There are two "special" right triangles that show up in trig and geometry problems.
The isosceles right triangle has angles of 45°-45°-90°, and side length ratios 1 : 1 : √2.
The half-equilateral triangle has angles of 30°-60°-90°, and side length ratios 1 : √3 : 2.
You will do yourself a favor if you remember and learn to recognize these triangles.
__
11.)The hypotenuse of the isosceles right triangle is 14√2. This tells you the basic ratio has been multiplied by 14. The side length is ...
s = 14
__
12.)The half-equilateral triangle has middle-length side 12√3. This means the basic ratio has been multiplied by 12. The triangle short side is 12, and the long side is twice that:
k = 24
express 0 in the form of x+iy..
Answers
Let's do
[tex]\\ \rm\Rrightarrow x+iy[/tex]
Put 0[tex]\\ \rm\Rrightarrow 0+0i[/tex]
Anything multiplied by 0 is 0