Answer:
C. 6/10
Step-by-step explanation:
Sin A = 6/10
A fair coin is flipped 12 times. Find the expected value for the number of times you see three consecutive tails.
The expected number of times we see three consecutive tails in 12 coin flips is 5/4.
Let X be the random variable representing the number of times we see three consecutive tails in 12 coin flips.
We can break down X into 10 smaller random variables, where X(i) represents the number of times we see three consecutive tails starting at the ith flip.
Specifically, X(i) = 1 if the ith, (i+1)th, and (i+2)th flips are all tails, and 0 otherwise.
Then we have:
X = X(1) + X(2) + ... + X(10).
Using the linearity of expectation, we can find the expected value of X by summing the expected values of X(1), X(2), ..., X(10)
E[X] = E[X(1)] + E[X(2)] + ... + E[X(10)]
To find E[X(i)], we can use the fact that the probability of getting three consecutive tails in a row is \(1/2^3 = 1/8,\) and the probability of not getting three consecutive tails in a row is 1 - 1/8 = 7/8.
Thus, the probability distribution of X(i) is a Bernoulli distribution with parameter p = 1/8.
Therefore, we have:
E[X(i)] = 1 * P(X(i) = 1) + 0 * P(X(i) = 0)
= 1 * (1/8) + 0 * (7/8)
= 1/8.
Substituting this into our earlier formula, we get:
E[X] = E[X(1)] + E[X(2)] + ... + E[X(10)]
= 10 * (1/8)
= 5/4.
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What is the volume of the rectangular prism? 1/2 cm
The volume of a rectangular prism is lwh unit cube.
What is a rectangular prism?A rectangular prism can be defined as a 3-dimensional solid shape that has 6 faces, with its base as rectangles.
The volume of a rectangular prism is given by, the product of its dimensions.
Let us consider length, width and height of the rectangular prism be l, w, h respectively,
Then, the volume will be = length x width x height
= l x w x h
= lwh
And its unit will be unit cube because there are 3 dimensions in the prism which are being multiplied.
Hence, the volume of a rectangular prism is lwh unit cube.
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To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at selects every th that comes off the assembly line starting with the until she obtains a sample of . What type of sampling is used? A. Systematic B. Stratified C. Convenience D. Simple random E. Cluster
Answer: systemic
Step-by-step explanation:
Can someone help find the value of x?
Answer:
38 deg
Step-by-step explanation:
The measures of complementary angles have a sum of 90 deg.
x + 52 = 90
x = 38
Answer: 38 deg
Define the nonprobability sampling methods and give examples of each.
Sampling is the use of a subset of the population to represent the whole population or to inform about processes that are meaningful beyond the particular cases, individuals or sites studied.
In non-probability sampling, the sample is selected based on non-random criteria, and not every member of the population has a chance of being included. Common non-probability sampling methods include convenience sampling, voluntary response sampling, purposive sampling, snowball sampling, and quota sampling.
x1
y=
4
of
5
6
7
8
Y1
1.24
1.38
1.41
1.76
2.84
Use Desmos to complete the equation:
Use the equation that you found. What is x if y is about 23 ?
What is the nearest value of y when x is 10?
The equation of the table of values is y = 0.36x - 0.42
The value of x if y is about 23 is about 65
The nearest value of y when x is 10 is 3
Complete the equation of the table of valuesGiven the table of values of x and y
x 4 5 6 7 8
y 1.24 1.38 1.41 1.76 2.84
Next, we enter the above values in a graphing tool (desmos)
From the tool, we have the equation to be
y = 0.36x - 0.42
What is x if y is about 23?This means that
y ≈ 23
So, we have
0.36x - 0.42 ≈ 23
This gives
0.36x ≈ 23.42
Divide by 0.36
x ≈ 65
What is the nearest value of y when x is 10?This means that
x = 10
So, we have
y = 0.36(10) - 0.42
Evaluate
y = 3.18
Approximate
y = 3
So, the nearest value is 3
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A company is organizing a project team from 3 departments (the administrative department, the marketing department and the accounting department) with a total of 30 employees. There are 8 employees are in the administrative department, the marketing department has 12 employees and the accounting department has 10 employees. If two employees are selected to be on the team, one after the other: Required: a) What is the probability that the first employee selected is from the accounting department and the second employee selected from administrative department if the first employee is also in the list of employees before the second employee is selected? b) What is the probability that the first employee selected is from administrative department and the second is from marketing department if the selection is made without replacement?
The probability that the first employee selected is from the accounting department and the second employee selected is from the administrative department, without replacement, is (10/30) * (8/29) = 0.091954.
To calculate the probability, we need to consider the number of employees in each department and the total number of employees. In this case, there are 10 employees in the accounting department out of a total of 30 employees. Therefore, the probability of selecting an employee from the accounting department as the first employee is 10/30. After the first employee is selected, there are 29 employees remaining, and 8 of them are from the administrative department. So, the probability of selecting an employee from the administrative department as the second employee, given that the first employee is from the accounting department, is 8/29. To calculate the overall probability, we multiply the probabilities of the individual selections.
The probability that the first employee selected is from the administrative department and the second employee selected is from the marketing department, without replacement, is (8/30) * (12/29) = 0.089655.
Similar to the previous scenario, we consider the number of employees in each department and the total number of employees. There are 8 employees in the administrative department out of a total of 30 employees. Therefore, the probability of selecting an employee from the administrative department as the first employee is 8/30. After the first employee is selected, there are 29 employees remaining, and 12 of them are from the marketing department. So, the probability of selecting an employee from the marketing department as the second employee, given that the first employee is from the administrative department, is 12/29. To calculate the overall probability, we multiply the probabilities of the individual selections.
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What is x+5=2x/3? I will mark brainliest for the answer that has full steps and correct answer
Answer:
2=x
Step-by-step explanation:
x+5=⅔x
x+5-3=2x/3-3
x+2=2x
x-x+2=2x-x
2=x
\(\longrightarrow{\green{x\:=\:-15}}\)
Step-by-step explanation:
\(x + 5 = \frac{2x}{ 3} \\ \\⇝3 \: (x + 5) = 2x \\ \\⇝3x + 15 = 2x \\ \\⇝3x - 2x = - 15\\ \\ ⇝x = - 15\)
To verify:
\(x + 5 = \frac{2x}{3} \\ \\⇝ - 15 + 5 = \frac{2 \times ( - 15)}{3} \\ \\⇝ - 10= \frac{ - 30}{3} \\ \\⇝ - 10 = - 10 \\ \\⇝L.H.S.=R. H. S\)
\(\boxed{Hence\:verified.}\)
\(\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35}}}}}\)
Question 8 (1 point)
The 100-meter dash time below represent the top five. What are the mean and
median for the data?
9. 8, 9. 9, 9. 5, 10. 1, 10
Mean 9. 86, Median 9. 8
Mean 9. 86, Median 9. 5
Mean 9. 5, Median 10
Mean 9. 86, Median 9. 9
Mean 9.86, Median 9.8. The mean is calculated by adding up all the values and dividing by the total number of values. In this case, (9.8 + 9.9 + 9.5 + 10.1 + 10) / 5 = 9.86.
The median is the middle value when the data is arranged in ascending order. Arranging the data in ascending order, we have 9.5, 9.8, 9.9, 10, 10.1. The middle value is 9.8. To find the mean of the data, we add up all the values and divide by the total number of values. In this case, we add 9.8 + 9.9 + 9.5 + 10.1 + 10, which equals 49.3. Since there are 5 values in total, we divide 49.3 by 5 to get the mean: 49.3 / 5 = 9.86. The median is the middle value when the data is arranged in ascending order. To find the median, we arrange the data in ascending order: 9.5, 9.8, 9.9, 10, 10.1. Since there are 5 values, the middle value will be the third value, which is 9.8. Therefore, the median is 9.8. Hence, the mean of the data is 9.86 and the median is 9.8.The mean is a measure of the average, which gives us an idea of the central tendency of the data. It is calculated by summing up all the values and dividing by the total number of values. In this case, the mean time for the top five 100-meter dashes is 9.86 seconds.
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Find the equation of the line pecified. The lope i 7, and it pae through ( 8, 6). A. Y = 7x - 50
b. Y = 14x - 50
c. Y= 7x 6
d. Y = 7x 62
That the equation of the line is y = 7x - 50.
The equation of a line with slope m passing through the point (x1, y1) is given by: y - y1 = m(x - x1).
In this case, the line has a slope of 7 and passes through (8, 6). Therefore, we can plug in the values for m, x1, and y1 into the equation above to find the desired equation.
Substituting in 7 for m, 8 for x1, and 6 for y1, we can rewrite the equation as: y - 6 = 7(x - 8).
Simplifying, we find that the equation of the line is y = 7x - 50.
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Levi's makes jeans in a variety of price ranges. The Silver Tab Baggy jeans sell for $30, whereas the Offender
jeans sell for $160. The demand for Levi's jeans is inversely proportional to the price. If 400,000 pairs of the
Silver Tab Baggy jeans were bought, approximately how many of the Offender jeans were bought?
Answer:
64,000,000
Step-by-step explanation:
400k x 16 = 64m
k = thousand
m = million
for those who are confused
vincent ordered pizza for him and his wife for dinner. when they had finished, they realized that 5/8 of the pizza was gone. for lunch the next day, vincent decided to eat 1/4 of what was left. how much was left after lunch?
Answer:
1/8 of the pizza
Step-by-step explanation:
whole pizza=1
5/8 is gone so 1-5/8=8/8-5/8=3/8
3/8-1/4 = 3/8-2/8=1/8
hope this helps
help meeeeeeeeeeeeeeeeeee pleaseeeeeeeeeeeeeee!!!!!!!!!!!!!!help meeeeeeeeeeeeeeeeeee pleaseeeeeeeeeeeeeee!!!!!!!!!!!!!!help meeeeeeeeeeeeeeeeeee pleaseeeeeeeeeeeeeee!!!!!!!!!!!!!!
Answer:
365698
Step-by-step explanation:
\(300000(1+0.02)^{10} \approx 365698\)
In AUVW, UW is extended through point W to point X, mZUVW (3x + 16)", mWUV = (2x + 8), and mZVWX = (8x – 18)". Find mZWUV.
Answer;
WUV = 36
Explanation:
Here is what we get when we draw the figures
Now we know that the sum of the interior angles of a triangle must equal 180 degrees; therefore,
\((2x+8)+(3x+16)+y=180^o\text{ }\)Also, angle y and VWX are supplementary; therefore,
\(y+(8x-18)=180^o\)Now, solving for y in the above gives
\(y=180+18-8x\)\(y=198-8x\)Putting this value of y in the first equation gives
\((2x+8)+(3x+16)+(198-8x)=180^o\text{ }\)Expanding and simplifying the left-hand side gives
\(-3x+222=180\)Subtracting 214 from both sides gives
\(-3x=-42\)Finally, dividing both sides by -3 gives
\(x=14.\)With the value of x in hand, we now find the measurement of WUV:
\(\angle\text{WUV}=2x+8\)\(\angle WUV=2(14)+8\)\(\angle\text{WUV}=36^o\)Hence, WUV = 36,
. how many different 8-digit numbers can be obtained by permuting the digits in the number 70,440,704? (since each number is an 8-digit number, the first digit cannot be 0.)
There are 17,640 different 8-digit numbers that can be obtained by permuting the digits in the number 70,440,704.
Since the first digit cannot be zero, we have 7 options for the first digit.
For the second digit, we have 7 remaining options, and for the third digit, we have 6 remaining options, and so on.
Therefore, the total number of different 8-digit numbers that can be obtained by permuting the digits in the number 70,440,704 is:
7 x 7 x 6 x 5 x 4 x 3 x 2 = 17,640.
Permuting refers to rearranging the order of a set of elements. In mathematics, permutations are used to calculate the number of ways in which a set of objects can be rearranged or ordered.
A permutation is a one-to-one mapping of a set to itself, where the order of the elements in the set is changed.
The number of permutations of a set with n elements is given by n!, which is the product of all the integers from 1 to n. For example, the set {1, 2, 3} has 3! = 6 permutations: {1, 2, 3}, {1, 3, 2}, {2, 1, 3}, {2, 3, 1}, {3, 1, 2}, and {3, 2, 1}.
Permutations are used in many areas of mathematics, including combinatorics, group theory, and abstract algebra, as well as in computer science and coding theory.
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Answer the following: (10 points) a. Find the area to the right of z= -1 for the standard normal distribution. b. First year college graduates are known to have normally distributed annual salaries wi
The area to the right of z = -1 for the standard normal distribution is approximately 0.8413.
a. To find the area to the right of z = -1 for the standard normal distribution, we need to calculate the cumulative probability using the standard normal distribution table or a statistical calculator.
From the standard normal distribution table, the area to the left of z = -1 is 0.1587. Since we want the area to the right of z = -1, we subtract the left area from 1:
Area to the right of z = -1 = 1 - 0.1587 = 0.8413
Therefore, the area to the right of z = -1 for the standard normal distribution is approximately 0.8413.
b. To answer this question, we would need additional information about the mean and standard deviation of the annual salaries for first-year college graduates. Without this information, we cannot calculate specific probabilities or make any statistical inferences.
If we are provided with the mean (μ) and standard deviation (σ) of the annual salaries for first-year college graduates, we could use the properties of the normal distribution to calculate probabilities or make statistical conclusions. Please provide the necessary information, and I would be happy to assist you further.
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consider a large block of iced in the shape of a cube. at the time the block is 1 ft on each side, the lengths of each side are increasing at a rate of 2 ft per hour. at what rate is the volume of the block increasing at this time
The volume of the block is increasing at a rate of \(6 ft^3/hour\) at this time.
Space in three dimensions is quantified by volume. It is frequently expressed as a numerical value using SI-derived units, other imperial units, or US customary units. Volume definition and length definition are connected.
The area occupied inside an object's three-dimensional bounds is referred to as its volume. The item's capacity is another name for it. A three-dimensional object's volume, which is expressed in cubic metres, is the quantity of space it takes up.
Let's start by finding the formula for the volume of a cube with side length s:
V = \(s^3\)
Now, let's differentiate both sides with respect to time (t):
dV/dt = \(3s^2(ds/dt)\)
We know that ds/dt = 2 ft/hour, and when s = 1 ft, we have:
dV/dt = \(3(1^2)(2) = 6 ft^3/hour\)
Therefore, the volume of the block is increasing at a rate of \(6 ft^3/hour\) at this time.
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One side of the square is increased by 5 units to form a rectangle. What is the area of the rectangle if the area of the square is 64 square units?.
The area of the rectangle is 104 square units.
Here, we are given one of the sides of a square is increased by 5 units to form a rectangle. The area of the original square is given to be 64 square units.
We know that area of square = side × side
⇒ \(side^{2}\) = 64
side = \(\sqrt{64}\)
side = 8
Thus, the original square was 8 by 8 units long.
Now, one of the sides is increased by 8 units ⇒ 8 + 5
= 13 units
Thus, the two sides of the square are 13 and 8.
Now, area of rectangle = length × breadth
⇒ area = 13 × 8
= 104
Thus, the area of the rectangle is 104 square units.
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Jo flips a coin {h, t}; then rolls a 6-sided die {1, 2, 3, 4, 5, 6}. How many possible outcomes are in the sample space of this experiment?.
The possible outcomes in the sample space of this experiment are
{(h,1),,(h,2),(h,3),(h,4),(h,5),(h,6),(t,1),(t,2),(t,3),(t,4),(t,5),(t,6)}
Jo flips a coin sample space for a coin = {h, t}
and rolls a 6-sided die sample space for a die = {1,2,3,4,5,6}
at a time coin is tossed and the die is rolled
the possible outcomes in the sample space of this experiment are
{(h,1),,(h,2),(h,3),(h,4),(h,5),(h,6),(t,1),(t,2),(t,3),(t,4),(t,5),(t,6)}
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Raynesha makes hair bows, she has 3 pieces of fabric that are 1/4 of a yard in length each. If she lines them up and uses the yardstick as a line plot. How long will they be total in yards?
The length of hair bows will be 3/4 yards.
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Raynesha makes hair bows.
And, She has 3 pieces of fabric that are 1/4 of a yard in length each.
Now,
Length of each fabric = 1/4
Number of pieces of fabric = 3
Hence,
The length of hair bows = 3 × 1/4
= 3 / 4
Thus, The length of hair bows will be 3/4 yards.
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John wanted to have some fresh air during a beautiful morning time. He then walks 1.00 km north, then tums right and walks 1.00 km east. His speed is 1.50 m/s during the entire stroll. (a) What is the magnitude of his displacement, from beginning to end? (b) If Jane starts at the same time and place as John, but walks in a straight line to the endpoint of John's stroll, at what speed should she walk to arrive at the endpoint just when John does?
Jane needs to walk at the same speed as John, which is 1.50 m/s, to arrive at the endpoint just when John does.
(a) To find the magnitude of John's displacement, we can use the Pythagorean theorem. The distance he walks north and east form the legs of a right triangle, and his displacement is the hypotenuse. Therefore:
displacement = √(1.00 km)^2 + (1.00 km)^2
= √(2.00 km)^2
= 2.00 km
Note that we must convert the distances to the same units before taking the square root.
(b) Jane needs to walk the same distance as John in the same amount of time to arrive at the endpoint just when John does. Since John walks a total distance of 2.00 km at a speed of 1.50 m/s, he takes:
time = distance / speed
= 2.00 km / 1.50 m/s
= 1333.33 s
Therefore, Jane needs to walk the same distance of 2.00 km in the same time of 1333.33 s. Her speed can be found from:
speed = distance / time
= 2.00 km / 1333.33 s
= 1.50 m/s
Therefore, Jane needs to walk at the same speed as John, which is 1.50 m/s, to arrive at the endpoint just when John does.
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2.) Olivia is borrowing $60 from her brother at 10% monthly interest. The
interest is to be compounded every month, and her only repayment
will be in full after 3 months. About how much will Olivia pay in
interest?
Answer:
18 dollars
Step-by-step explanation:
well my teacher tought me to use something called a proportian box when you multiply the 60 * 210 equals 600 divided by 100 equals that 6 dollars of the interest then you multiply by 3 months with gives you 18 dollars in total
hope this helps
Taura paid $64 for 4 tickets to a baseball game. At that rate, how much would it cost Victor to buy 6 tickets?
A.
$96
B.
$10
C.
$80
D.
$16
Answer:
A
Step-by-step explanation:
I hope this helps you out!
3.12 divided 1/2
I need help with this question
Answer:
6.24
Step-by-step explanation:
Pls helppppp 25 pt and brainiest for whoever answers it right.
Find the longest side of a parallelogram with a perimeter of 66ft., If the sides measure 3x + 1 and 2x - 3.
Find the longest side of a parallelogram.
Formula used:-Perimeter of parallelogram = 2 ( a + b )
Solution:-We know that,
Perimeter of parallelogram = 2 ( a + b )
★ Substituting the values in the above formula,we get:
⇒ 66 = 2 ( 3x + 1 + 2x - 3 )
⇒ 66 = 2 ( 5x - 2 )
⇒ 66/2 = 5x - 2
⇒ 33 = 5x - 2
⇒ 5x - 2 = 33
⇒ 5x = 33 + 2
⇒ 5x = 35
⇒ x = 35/5
⇒ x = 7 ft
Now,
One side,a = 3x + 1
★ Putting the value of x
⇒ 3 × 7 + 1
⇒ 21 + 1
⇒ 22 ft
Other side,b = 2x - 3
★ Putting the value of x
⇒ 2 × 7 - 3
⇒ 14 - 3
⇒ 11 ft
Hence,the longest Side of given parallelogram is 22 ft ( 3x + 1 ) .
Which equation represents a line which is perpendicular to the line y=2x-5y
Answer:
Step-by-step explanation:
y=-3x
I could be wrong, but I hope it helps at
8. Solve 3x = -27.
F 30
G-9
J 81
Answer: G. -9
Step-by-step explanation: -27/3 = -9
A and B are monomials where A = 125 and B = 27p12. What is the factored form of A – B?
(5 – 3p4)(25 + 15p4 + 9p8)
(25 – 3p4)(5 + 15p3 + 9p3)
(25 – 3p4)(5 + 15p4 + 3p8)
(5 – 3p4)(25 + 15p3 + 3p4)
P.S- This is 100 points and if you are correct i will mark you brainly if not you will get a report.
Answer:
first option in ecad
Step-by-step explanation:
Which statement describes the end behavior of the function?
Answer:
I would say (D) because if x = infinity, then infinity/infinity would be 1
Step-by-step explanation:
what is 200 X 1,0000
Answer:
2,000,000
Step-by-step explanation:
2 million
Answer:
The answer to 200 x 10,000 is 2,000,000