Answer:
1/6
Step-by-step explanation:
Possible outcomes
HHH
HTH
HTT
TTT
THT
THH
15/50 fifty chief executive officers (ceos) of publicly traded companies are randomly selected and their salaries are determined. thirty-eight of the ceos selected have salaries in excess of $800,000 . if a ceo from one of the selected publicly traded companies is randomly selected, find the probability that the ceo will have a salary in excess of $800,000 . round your answer to two decimal places, if necessary.
The probability that the ceo will have a salary in excess of $800,000 is given as follows:
0.0245 = 2.45%.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.
38 out of 1550 ceo's had salaries in excess of $800,000, hence the probability is obtained as follows:
p = 33
p = 0.0245 = 2.45%.
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Which of the following is equivalent to 16 3/2
Answer:
b is the answer because I don't know what to do with it and
The larger nail is a dilation of the smaller nail.
Select all statements that are true.
Answer: the scale factor is 3/4
Step-by-step explanation:
Answer:
whats the rest of the answer?
Step-by-step explanation:
2(-3x+5)+2(x+4) when x=2
Answer:
12
Step-by-step explanation:
p(x) = 2(-3x+5)+2(x+4)
Substitution :
p(2) = 2(-3(2) +5) + 2(2+5)
= 2(-6 + 5) + 2 (7)
= 2(-1) + 2(7)
= -2 + 14
= 12
solve the given initial-value problem. x(x + 1) dy dx + xy = 1, y(e) = 1
The solution to the initial-value problem x(x + 1) dy/dx + xy = 1, y(e) = 1 is y = ln(x + 1) / x.
To solve the given initial-value problem, we can use the method of integrating factors. Rearranging the equation, we have dy/dx + (xy / (x(x + 1))) = 1 / (x(x + 1)).
The integrating factor is given by μ(x) = exp ∫ (xy / (x(x + 1))) dx. Simplifying the integral, we have μ(x) = exp ∫ (1 / (x + 1)) dx = exp(ln(x + 1)) = x + 1.
Multiplying the entire equation by the integrating factor, we obtain (x + 1)dy/dx + xy = (x + 1) / (x(x + 1)).
The left side of the equation can be written as d((x + 1)y)/dx. Integrating both sides with respect to x, we have ∫ d((x + 1)y)/dx dx = ∫ (x + 1) / (x(x + 1)) dx.
Simplifying the right side of the equation, we get ∫ dx / x = ln|x| + C.
Dividing both sides by (x + 1), we have (x + 1)y = ln|x| + C.
Finally, solving for y, we find y = (ln|x| + C) / (x + 1). Using the initial condition y(e) = 1, we can substitute x = e and solve for C to obtain the specific solution y = ln(x + 1) / x.
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help me solve this please!!!!
Sam starts his hike at an elevation of 311 feet above sea level. When
he reaches the end of the hike, he is 6371 feet above sea level. What
was the change in elevation from the start of his hike to the end?
label optional
Answer:
6060 feet
Step-by-step explanation:
6371-311=6060
Researchers investigated whether there is a difference between two headache medications, R and S. Researchers measured the mean times required to obtain relief from a headache for patients taking one of the medications. From a random sample of 75 people with chronic headaches, 38 were randomly assigned to medication R and the remaining 37 were assigned to medication S. The time, in minutes, until each person experienced relief from a headache was recorded. The sample mean times were calculated for each medication. Have the conditions been met for inference with a confidence interval for the difference in population means? A Yes, all conditions have been met. B No, because the data were not collected using a random sample. © No, because cause and effect cannot be inferred since there is a random sample No, because the sample sizes are not large enough to assume the distribution of the difference in sample means is approximately normal. (E) No, because the sample sizes are not the same.
The correct answer is option D. No, because the sample sizes are not large enough to assume the distribution of the difference in sample means is approximately normal.Researchers investigated whether there is a difference between two headache medications, R and S.
Researchers measured the mean times required to obtain relief from a headache for patients taking one of the medications. From a random sample of 75 people with chronic headaches, 38 were randomly assigned to medication R and the remaining 37 were assigned to medication S. The time, in minutes, until each person experienced relief from a headache was recorded. The sample mean times were calculated for each medication.To construct a confidence interval, we require that some conditions are satisfied. The assumptions that should be met for inference with a confidence interval for the difference in population means are as follows:The data is independent;The data in each group should be roughly normally distributed;Both groups have the same variance, and each group should have a large enough sample size so that the central limit theorem (CLT) holds. The CLT holds for the difference in the sample means since both samples are taken from a population that is normally distributed. We can also assume that the sample size is large enough to use the t-distribution since each sample has more than 30 observations. As a result, all of the conditions have been met. As a result, we may employ a t-distribution to make inferences about the population difference between the two headache medications.
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can someone help me with this work please and thank you.
The following are the values for the segments of the triangles:
4). a = 6.5
5). x = 2.7
6). x = 7.8 and y = 7.2
How to calculate for the segments of the triangleUsing the proportionality theorem for calculating for the triangle segments as follows:
4). YZ/ZW = XY/XW
a/12 = 12/22
a = (12 × 12)/22 {cross multiplication}
a = 6.2
5). BC/CD = AB/AD
x/(7 - x) = 5/8
8x = 5(7 - x) {cross multiplication}
8x = 35 - 5x
8x + 5x = 35
13x = 35
x = 2.7
6). KL/LM = NK/NM
y/(15 - y) = 23/25
25y = 23(15 - y)
25y + 23y = 345
48y = 345
y = 7.2
x = LM so;
x = 15 - y
x = 15 - 7.2 = 7.8.
Therefore, the values for the segments of the triangles are:
4). a = 6.5
5). x = 2.7
6). x = 7.8 and y = 7.2
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the side length ofthe square porch behind macis house is (3x + 2) feet. The porch has a perimeter of (14x - 2) feet. What are the dimensions of the porch
Answer:
The porch is 17 ft by 17 ft
Step-by-step explanation:
The perimeter of a square is
P = 4s where s is the side length
P = 4( 3x+2)
P = 12x+8
We know P = 14x-2
14x-2 = 12x+8
Subtract 12x from each side
14x-2 -12x = 12x+8-12x
2x -2 = 8
Add 2 to each side
2x-2 +2 = 8+2
2x= 10
Divide by 2
2x/2 = 10/2
x = 5
The side is 3x+2
3*5+2
15+2
17
The porch is 17 ft by 17 ft
Need help with this quest
Answer:
I got x = -7 I hope this helps
Answer:
X = -7
Explanation:
1) -5 = -3 + x/2
-10 = -3 + x
x = -10 + 3
x = -7
Identify an example of a pair of skew line from the box below
Answer:
AB, CD
Step-by-step explanation:
Skew lines do not lie in the same plane, and do not intersect. One such pair is AB and CD.
__
Additional comment
Any of the lines, and any of the lines that intersect its diagonally-opposite edge will be skew lines.
For example, the opposite edge to line BC is line EG. Lines that intersect EG are ED, EF, GA, GH. All of those four lines are skew with respect to line BC.
hlo friends
H. C. F of 64 and 96 is ____.
The highest common factors of 64 and 96 is 32
How to find the highest common factor(HCF)Find the factors of 64 and 96 respectively
64 = 1, 2, 4, 8, 16, 32 and 6496 = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96The common factors of 64 and 96 are 1, 2, 4, 8, 16, 32
Therefore, the highest common factors of 64 and 96 is 32
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together, katya and mimi have 480 pennies in their piggy banks. after katya loses 1/2 and mimi losses 2/3of her pennies, they have an equal number of pennies left. how many pennies did they lose altogether?
The number of pennies they lose altogether is 288 pennies.
How to find the number of pennies they lost together?
Together, Katya and Mimi have 480 pennies in their piggy banks.
Therefore, there total amount of pennies is 480.
After Katya loses 1/2 of her pennies and Mimi loses 2/3 of her pennies, they have an equal number of pennies left.
Therefore,
let
x = number of pennies Katya have
y = number of pennies Mimi have
Hence,
x + y = 480
x = 480
Katya pennies left = x - 1 / 2x = 1 / 2x
Mimi pennies left = y - 2 / 3 y = 1 / 3 y
1 / 2 x = 1 / 3 y
2y = 3x
y = 3 / 2 x
Substitute the value in equation(i)
x + 3 / 2 x = 480
2.5x = 480
x = 480 / 2.5
x = 192
Therefore,
192 + y = 480
y = 480 - 192
y = 288
The number of pennies they lose can be calculated as follows;
Katya losses = 1 / 2 × 192 = 96
Mimi losses = 2 / 3 × 288 = 192
Therefore, they lost 96 + 192 = 288 pennies altogether.
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Please help ASAP!!!!
Answer:
m<CAO = 56°
Step-by-step explanation:
Same-side interior angles are supplementary to each other, so take their sum and set them equal to 180 and solve for x:
2x + 3x + 40 = 180
5x + 40 = 180
5x = 140
x = 28
Plug x=28 into angle CAO:
CAO = 2(28) = 56°
The sum of x and 7 is less than -3
Answer:
\(x+7<-3\)
Step-by-step explanation:
Sum = +
Less than = <
Merge all together accordingly you get ;
\(x +7<-3\)
If you solve the equation , you will get;
x<-10
What is the length Y in this picture ?
Answer:
5
Step-by-step explanation:
The triangle pictured is a 45-45-90 triangle, meaning both legs are the same length, 5.
can someone explain this with stpes
Answer:
(A). 50°
Step-by-step explanation:
student x pushes a 10-n box with a force of 2 n. at the same time, student y pushes the same box with a force of 6 n, but in the opposite direction. which would most likely occur? (ignore friction.)
please help will give you brainliest
Answer:
2nd
Step-by-step explanation:
Five possibilities are equally likely and have payoffs of $2, $4, $6, $8, and $10. the expected value is:____.
a. $4
b.$5
c. $6
d. $7
The expected value for the given Five possibilities is $6.
We have,
Payoffs of $2, $4, $6, $8, and $10.
Now,
We know that,
The expected value \(=\Sigma (x*P(x))\)
i.e. The sum of product of possible outcome and each outcome.
Here, x = Each outcome
And
P(x) = Possible outcomes
So,
Probability of x (Px) \(=\frac{1}{5}\),
Now,
According to the above mentioned formula,
i.e.
The expected value \(=\Sigma (x*P(x))\)
We get,
\(=\Sigma\ (\frac{1}{5} * 2) + (\frac{1}{5} * 4) + (\frac{1}{5} * 6) +(\frac{1}{5} * 8) +(\frac{1}{5} * 10)\)
On solving we get,
\(=\Sigma\ (0.4 + 0.8 + 1.2 + 1.6 + 2)\)
i.e.
The expected value = $6
So,
The expected value for given possibilities is $6.
Hence we can say that the expected value for the given Five possibilities is $6.
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which is the simplified form of the expression
please help!!
Answer:
A
Step-by-step explanation:
p^-8q^-20 * p^8q^-10
=q^-30
=1/q^30
Mehnaj has a set of blocks that are all the same hight the cone-shaped block has a volume of 125 cubic inches the sphere--shaaped block has a volume of 250 cubic inches what do you know about the raduis of the base of the cone-shaped block explain?
The radius of the base of the cone-shaped block is approximately 10.69 inches.
To solve this problemWe can use the formula for the volume of a cone to find the radius of its base. The volume of a cone is given by the formula :
V = (1/3)πr^2h
Where
V is the volume r is the radius of the baseh is the heightWe know that the volume of the cone-shaped block is 125 cubic inches, and we know the height is the same for all blocks. So we can solve for the radius:
125 = (1/3)πr^2h
125 = (1/3)πr^2h
375 = πr^2h
r^2 = 375/π
r ≈ 10.69
So we can conclude that the radius of the base of the cone-shaped block is approximately 10.69 inches.
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Review the graph of function j(x).
A line goes from the open circle to closed circle (6, 5). What is Limit of j (x) as x approaches 3? 3 4 5 6
Note that given the above graph, the limit of j (x) as x approaches 3 is 4.
Why is this so?A line begins at an open circle (2, 6) on a coordinate plane and falls via (-2, 2), according to the query. (3, 6) is a full circle. A curve travels from a solid circle (2, 3) to an open circle (3, 4). A line (6, 5) connects the open and closed circles.
The graph shows that the function j(x) has a limit of 4 as the value of x approaches 3.
A graph is a diagram or graphical representation that organizes the portrayal of facts or values.
Note that the points on a graph are typically used to depict the relationships between two or more things.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
See attached image..
Roni starts with the number 5 and counts by 8s. This results in the sequence 5, 13, 21, 29, 37, and so on. What is the twenty-fifth number in the sequence
The 25th number in the arithmetic sequence is 197.
The sequence starts with the number 5 and counts by 8s. To find the 25th number in the sequence, we need to find the number that comes after the 24th number.
To do this, we can use the formula for the nth term of an arithmetic sequence, which is given by the formula:
aₙ = a₁ + (n - 1)d
In this case, a₁ is the first term of the sequence (5), n is the number of terms (25), and d is the common difference (8). Plugging these values into the formula, we get:
a₂₅ = 5 + (25 - 1) * 8
Simplifying this expression, we get:
a₂₅ = 5 + 24 * 8
= 5 + 192
= 197
Therefore, the 25th number in the sequence is 197.
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Almost all medical schools in the united states require students to take the medical college admission test (mcat). The total score of the four sections on the test ranges from 472 to 528. In spring of 2019, the mean score was 500. 9, with a standard deviation of 10. 6.
What is the question for this so I can answer it?
hello am just trying to make sure I did the gray one right
Answer:
Correct
Step-by-step explanation:
To isolate the variable of x, simply add 16 to 11 which is 27 and now it is set up as 4.5x=27 and 27/4.5, it = 6
Answer:
Gray and all are right.
Step-by-step explanation:
4.5x + 16 = 11.5
4.5x = 11.5 - 16
4.5x = -4,5
x = -4.5/4.5
x = -1
4.5x + 27 = -9
4.5x = -9 - 27
4.5x = -36
x = -36/4.5
x = -8
4.5x - 16 = 11
4.5x = 11 + 16
4.5x = 27
x = 27/4.5
x = 6
-4.5x + 27 = 45
-4.5x = 45 - 27
-4.5x = 18
x = 18/-4.5
x = -4
To calculate the interquartile range, Daniel subtracts the highest and lowest number within a given dataset. Is this method correct?
Daniel's method is incorrect, as the interquartile range is given by the difference between the third quartile and the first quartile.
What is the interquartile range of a data-set?The interquartile range of a data-set is by the difference of the 75th percentile(Q3) by the 25th percentile(Q1) of the data-set.
The quartiles are described as follows:
Q3: Median of the upper half of the data-set.Q1: Median of the lower half of the data-set.From this, we get that the quartiles are related to the median of the set, that is, neither is given by the highest and by the lowest values, hence the interquartile range is given by the difference between the third quartile and the first quartile.
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suppose a basketball player has made 215 out of 322 free throws. if the player makes the next 2 free throws, i will pay you $32 . otherwise you pay me $24 . step 2 of 2 : if you played this game 590 times how much would you expect to win or lose? round your answer to two decimal places. losses must be expressed as negative values.
Suppose a basketball player has made 215 out of 322 free throws. If the player makes the next 2 free throws, you will be paid $32, otherwise, you pay $24. To find out how much you would expect to win or lose if this game is played 590 times, the first thing to do is to find the probability that the player will make the next two free throws.In order to find the probability that the player makes the next 2 free throws, the total number of free throws attempted is 322 + 2 = 324.
The probability that the player makes each free throw is equal to the ratio of the number of successful free throws to the total number of free throws attempted.Therefore, the probability that the player makes each free throw is215/322 = 0.6667 (rounded to four decimal places)The probability that the player will make the next 2 free throws is:0.6667 × 0.6667 = 0.4445 (rounded to four decimal places).
This means that the probability that the player misses at least one free throw is:1 − 0.4445 = 0.5555 (rounded to four decimal places)If you win, you get $32, while if you lose, you have to pay $24. This means that your expected value is given by the formula:E(X) = $32(0.4445) − $24(0.5555) = −$0.22Therefore, if you played this game 590 times, you would expect to lose a total of:$0.22 × 590 = -$129.80 (rounded to two decimal places)Note that since you are expected to lose, the value is negative.
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Answer It plz? I need help
Answer:
(23, 4)
Step-by-step explanation:
If we use substitution, we need to rewrite the 2nd equation so we can substitute it into the first.
Step 1: Rewrite 2nd equation
x = 5y + 3
Step 2: Substitution
2(5y + 3) - 5y = 26
Step 3: Distribute
10y + 6 - 5y = 26
Step 4: Combine like terms
5y + 6 = 26
Step 5: Isolate y
5y = 20
y = 4
Step 6: Find x
x - 5(4) = 3
x - 20 = 3
x = 23
And we have our final answer!
Answer:
(23, 4)
Step-by-step explanation:
Begin by defining x.
x - 5y = 3
x = 3 + 5y
Now substitute.
2(3 + 5y) - 5y = 26
6 + 10y - 5y = 26
5y = 20
y = 4
Now substitute y for 4.
x - 5y = 3
x - 5(4) = 3
x = 3 + 20
x = 23