18 This distance-time graph shows Ryan's jouney from his home to Jack's house and back home again. Ryan stops at the local shop on the way home,
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Please help me with this question! <3
Which set of coordinate pairs does NOT represent a linear function?
A.(−4, −12), (−3, −10), (−2, −8), (−1, −6)
B.(−4, −17), (−3, −10), (−2, 5), (−1, 2)
C.(1, −7), (2, −10), (3, −13), (4, −16)
D.(1, 1), (2, 4), (3, 7), (4, 10)
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Answer:
c
Step-by-step explanation:
Carson's tablet has 2,000 videos. The play time for the videos is skewed to the right, with a mean of 135 seconds and a standard deviation of 25 seconds.
Part A: Can you accurately calculate the probability that the mean play time is more than 142 seconds for an SRS of 10 videos? Explain. (4 points)
Part B: If you take a random sample of 50 videos instead of 10, explain how the Central Limit Theorem allows you to find the probability that the mean play time is more than 142 seconds. Calculate this probability and show your work. (6 points)
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Answer:
SEE BELOW
Step-by-step explanation:
A: Yes, it is 18.80%. Sample Mean= 135, Sample Standard deviation= 25/sq rt of 10 = 7.906, normalcdf(142, 999999, 135, 7.906) = .18796 × 100 = 18.796 = 18.80%
B: If we increase the sample size to 50, then, due to the Central Limit Therme, there should be less variation within the data (it should point to a more clear center). Sample Mean= 135, Sample Standard deviation= 25/sq rt of 50 = 3.535, normalcdf(142, 999999, 135, 3.535) = .02385 × 100 = 2.385 = 2.39%
The probability that the mean playtime is more than 142 seconds for an SRS of 10 videos is not accurately calculated and the probability that the mean playtime is more than 142 seconds is 0.0244.
Given :
The total number of videos on Carson's tablet is 2000.The mean is 135 seconds.The standard deviation is 25 seconds.A) The probability that the mean playtime is more than 142 seconds for an SRS of 10 videos is not accurately calculated because the sample size is too small due to which the central limit theorem cannot be applied.
B) According to the given data, the sample size is 50.
[tex]P(\bar{X}>142)=P\left(\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n} }}>\dfrac{142-\mu}{\dfrac{\sigma}{\sqrt{n} }}\right)[/tex]
[tex]P(\bar{X}>142)=P\left(Z>\dfrac{142-135}{\dfrac{25}{\sqrt{50} }}\right)[/tex]
[tex]P(\bar{X}>142)=P\left(Z>1.9798\right)[/tex]
Using the z table the above expression becomes:
[tex]P(\bar{X}>142)=0.0244[/tex]
For more information, refer to the link given below:
https://brainly.com/question/898534
19. What is the diameter of circle C?
Сл
3
A. 234
B. 34
C. 4
D. 8
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Answer:
8
Step-by-step explanation:
in right angle triangle
h^2=p^2+b^2
5^2=3^2+b^2
25-9=b^2
b=√16=4
radius=4
diameter=4×2=8
Factor using GCF.
Show your work!
1) 36a + 18b - 27c
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What quadrant is (6, −7) in? Quadrant I Quadrant II Quadrant III Quadrant IV
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Answer:
(6,-7) Would be in Quadrant IV
Step-by-step explanation:
Find A ∩ (BC). A = {2, 3, 5, 8} B = {3, 5, 7} C = {2, 4, 8}
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Answer:
A/5%=b-c+3-5%=d£&68+7-7'
Solve this system of equations by
using the elimination method.
4x - 7y = 2
- 8x + 7y = -18
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Evaluate (x+40)/2^3 when x=8
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Answer:
6. my bad is it wrong
Step-by-step explanation:
write a word problem whose solution is $111
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Answer:
Step-by-step explanation:
Word problem is a topic in mathematics that involves the interpretation of a given question with a mathematical expression so as to determine the value of the required variable.
Example: The price of a pencil is $10, and that of a ruler is $15.25. If Charles bought 5 pencils and 4 rulers, calculate the total amount of money spent.
price of a pencil = $10
price of a ruler = $15.25
Then,
cost of 5 pencils = $10 x 5
= $50
cost of 4 rulers = $15.25 x 4
= $61
Total amount of money spent by Charles = $50 + $61
= $111
The total amount of money spent by Charles is $111.
state the collision theory
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Answer:
Collision theory, theory used to predict the rates of chemical reactions, particularly for gases. The collision theory is based on the assumption that for a reaction to occur it is necessary for the reacting species (atoms or molecules) to come together or collide with one another.
The percent of Tom’s budget he spends on different types of expenses is shown in the circle graph below. Tom’s total monthly budget is $2,500.
Tom's Expenses
Rent 30%
Savings 30%
Groceries 25%
Other 15%
How much does Tom spend each month on rent?
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Answer:
$750
Step-by-step explanation:
rent is 30% of $2,500 Tom's total monthly budget.
30/100 x 2500 = 750
ILL MARK BRAINLIST , pls help n
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Answer:
answer is b
Step-by-step explanation:
ILL MARK BRAINLIST , pls help n
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Answer:
33
Step-by-step explanation:
[tex] {x}^{2} - 5x - 2 = 0 \\ \\ equating \: it \: with \\ a {x}^{2} + bx + c = 0 \\ we \: find : \\ a = 1 \\ b = - 5 \\ c = - 2 \\ \\ {b}^{2} - 4ac \\ = {( - 5)}^{2} - 4 \times 1( - 2) \\ = 25 + 8 \\ = 33 \\ \\ by \: quadratic \: formula \\ \\ x = \frac{ - b \pm \sqrt{ {b}^{2} -4ac } }{2a} \\ \\ x = \frac{ - ( - 5) \pm \sqrt{33}}{2 \times 1} \\ \\ x = \frac{ 5 \pm \sqrt{33}}{2}...(1) \\ \\x = \frac{ 5 \pm \sqrt{n}}{2}...(2) (given)\\ \\ equating \: equations \: (1) \: and \: (2) \\ \\ \huge \red{ \boxed{n = 33}}[/tex]
hi please help urgent question!!!
will give brainlist :>
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Answer:
dont know sos
Step-by-step explanation:
Two sides of an obtuse triangle measure 12 inches and 14 inches. The longest side measures 14 inches.
What is the greatest possible whole-number length of the unknown side?
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A pack of pencils costs $1.25. The school secretary went to the store, bought some packs of pencils and spent $11.25. Which equation can be used to solve for how many pencils, p, she bought?
A. p+1.25=11.25
B. 11.25-p=1.25
C. 1.25p=11.25
D. 11.25p=1.25
Please answer quick
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PLEASE HELP MEEEEEEEEEEE
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sorry if im wrong but im sure its c
what is a eqvilent fraction to 6/20
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Answer:
310 is equivalent to 620 because 3 x 20 = 10 x 6 = 60. 930 is equivalent to 620 because 9 x 20 = 30 x 6 = 180. 1240 is equivalent to 620 because 12 x 20 = 40 x 6 = 240.
Step-by-step explanation:
Answer:
30%
Step-by-step explanation:
What's 6 divided by 20?
6/20 = 30
- 9(x + 3) = 27
Apply the Distributive Property and simplify.
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-9
-9x-27=27
-9x = 54
X=6
helpppppppppppppppppppppp
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Answer:
45 feet
Step-by-step explanation:
Jorge can travel 50 miles on his
motorized scooter using 1 gallon of gas.
How many miles can he travel using
8 gallons of gas?
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Answer:
its c
Step-by-step explanation:
Answer:
400 miles
Step-by-step explanation:
50 miles.....1 gallon
x miles......8 gallons
50*8=400
f(x) = 3(3x + 4)
The inverse
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Answer:
Step-by-step explanation:
find the inverse of the function y=9x+12
To find the inverse function, swap x and y, and solve the resulting equation for x.
If the initial function is not one-to-one, then there will be more than one inverse.
So, swap the variables: y=9x+12 becomes x=9y+12.
Now, solve the equation x=9y+12 for y.
[tex]f^{-1}[/tex](x) = (x-12)/9
y=(x−12)/9
what goes into 27 and 48?
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Answer:
Step-by-step explanation:
lets see
27=7*4=7*2*2
48=3*2*2*2*2
both numbers are divisible by 4
27/3=9, 48/3=16
Answer = 3
WILL GIVE BRAINLIEST!!!
Answers
Answer:
QR=11
Step-by-step explanation:
A diver is 25 feet below sea level. An airplane is 1,000 feet above sea level. What is the distance between the diver and the airplane?
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Answer:
1025 Please Mark Me Brainliest
Step-by-step explanation:
What sets of numbers does the square root of 3 belong to?
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Answer:
irrational
Step-by-step explanation:
its a decimal that never ends or repeats and cant be accurately turned into a fraction, like pi
If g(x)= x+1/X-2
and h(x) = 4 – x, what is the value of (gºf)(-3) ?
a. 8/5
b. 5/2
c. 15/2
d. 18/5
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what is the square root of 724
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Answer:26.9072480941
Step-by-step explanation:
The box plots below show student grades on the most recent exam compared to overall grades in the class
which of the following best describes the information about the medians
1. the exam outlier at 60 makes the IQR narrower and the median higher
2. The class data is more evenly spread which pulls its medium down
3. The class median is lower than the exam median
4. The class Q3 is higher than the exam Q3
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Answer:
3. The class median is lower than the exam median
Step-by-step explanation:
The median of the box plot is indicated by the vertical line that divides the box.
Thus, the Class median grade is about 80, while the Exam median grade is more than 80.
Comparing grades, this means that the class median is lower. than the exam median.
Therefore, "the class median is lower than the exam median" is the right information that describes the median.
Answer:
C- The class median is lower than the exam median
Step-by-step explanation:
i took test
The Smith family made a 12-pound turkey for dinner. If each person will eat of a pound, how many
people will it take to finish the turkey?
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Answer:
Step-by-step explanation:
12 pound turkey
one person eats 1 lb
12 people will eat 12 lbs