please help! its do by 3:55pm! im only at 20! johns test averages 69,86,100,and 105 what is his average?
Answer:
90
Step-by-step explanation:
In order to find the average of something, you add all the numbers and then divide it by how many numbers there were.
69+68+100+105=360
360 ÷ 4 = 90
John's average is 90.
Brainliest please?
Describe the meaning of the numbers shown in the table at the right
As the question explains, h is the number of tubs of hummus sold and p is the profit in dollars for the week.
The table shows a value of 900 for h, which means that 900 tubs of hummus were sold in that week.
It also shows a value of 4200 for p, meaning that the profit in that week was $ 4200.00.
We can also use the equation to check if these values make sence. Inputting h = 900, we get:
\(\begin{gathered} p=5\cdot900-300 \\ p=4500-300 \\ p=4200 \end{gathered}\)We can see that we get p = 4200, which is the same as the value given in the table, which shows that the presented value and the equation are saying the same thing.
In short, h = 900 means that 900 tubs of hummus were sold in that week and p = 4200 means that the profit of these sales were $ 4200.00.
Lillian wants to purchase a new camper. She needs to borrow $6000 for 2 years. Lillian will have a 3.5% interest rate. How much interest will be earned? Hint: Use this formula: Interest = Prt
Answer:
$420 interest will be earned.
Step-by-step explanation:
The answer is 420 because 3.5% of 6000 is 210 and 210 multiplied by 2 is 420
P.S Can I have brainliest?
helppp plssssss (10 points)
in each of the following cases, indicate whether classical, empirical, or subjective probability is used. a. a baseball player gets a hit in 34 out of 134 times at bat. the probability is 0.25 that he gets a hit in his next at bat. multiple choice 1 empirical subjective classical b. a five-member committee of students is formed to study environmental issues. what is the likelihood that any one of five are randomly chosen as the spokesperson. multiple choice 2 empirical subjective classical c. you purchase a ticket for the lotto canada lottery. over eleven million tickets were sold. what is the likelihood you will win the $1 million jackpot? multiple choice 3 empirical subjective classical d. the probability of an earthquake in northern california in the next 10 years above 11.0 on the richter scale is 0.82. multiple choice 4 empirical subjective classical
The probability that the baseball player gets a hit in his next at-bat is an empirical probability because it is based on observed data (the number of times the player got a hit out of the total number of times at bat).
What is empirical probability?Empirical probability is a technique for estimating the likelihood of an event based on actual facts or outcomes of experiments. Also called experimental probability. This method is frequently applied in circumstances where it is challenging or impossible to estimate the likelihood of an event based on theoretical considerations, such as when tossing a coin or rolling a die.
In order to get the empirical probability, we divide the total number of observations or trials by the number of times the relevant event occurred. For instance, the empirical probability of the coin landing heads is 45/100, or 0.45, if we flip a coin 100 times and it comes up heads 45 times.
a. The probability that the baseball player gets a hit in his next at-bat is an empirical probability because it is based on observed data (the number of times the player got a hit out of the total number of times at bat).
b. The likelihood that any one of five students is randomly chosen as the spokesperson is a classical probability because it is based on equally likely outcomes in a finite sample space.
c. The likelihood of winning the $1 million jackpot in the Lotto Canada lottery is a classical probability because it is based on equally likely outcomes in a finite sample space.
d. The probability of an earthquake in northern California in the next 10 years above 11.0 on the Richter scale is a subjective probability because it is based on expert judgment or opinion rather than on observed data or equally likely outcomes.
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List the factor pairs of the number 16
Answer:(1,16) and (-1,-16)
Step-by-step explanation:
For example, the pair factors of 16 are written as
Point Q is the center of dilation. Triangles B prime C prime D prime and B C D are shown. The length of C prime Q is 3. The length of B prime C prime is 18. The length of D prime D is 2. The length of B D is 22 and the length of B C is 36. Angle B C D is 34 degrees and Angle B D C is 51 degrees. Triangle BCD was dilated using the rule D Subscript Q, one-half. What are the values of the unknown measures? m∠C'B'D' = ° CQ = B'D' =
Answer:
95 6 11
Step-by-step explanation:
im really smart lol jp :/
Answer:
m∠C'B'D' = 95
CQ = 6
B'D' = 11
Step-by-step explanation:
Edge2020
Have a great day! :)
help my teacher is going to come to check it
Answer:
i think A is the answer
Step-by-step explanation:
yes it is A the other guy or girl is corect
The price-demand equation and the cost function for the production of HDTVs are given, respectively, by
x = 9,000 - 30p and C(x) = 150,000 + 30x
where x is the number of HDTVs that can be sold at a price of $p per TV and C(x) is the total cost (in dollars) of producing x TVs.
(A) Express the price p as a function of the demand x, and find the domain of this function.
(B) Find the marginal cost.
(C) Find the revenue function and state its domain.
(D) Find the marginal revenue.
(E) Find R'(3,000) and R'(6,000) and interpret these quantities.
(F) Graph the cost function and the revenue function on the same coordinate system for 0
≤
x
≤
9
,
000
. Find the break-even points and indicate regions of loss and profit.
(G) Find the profit function in terms of x.
(H) Find the marginal profit.
(I) Find P'(1,500) and P'(4,500) and interpret these quantities.
The domain of this function p is (9,000 - x)/30, the marginal cost is 30 dollars per TV and revenue function is x(9,000 - x)/30. The marginal revenue is (9,000 - 2x)/30 and profit function in terms of x is R(x) -.
(A) To express the price p as a function of the demand x, we can solve the price-demand equation for p:
x = 9,000 - 30p
30p = 9,000 - x
p = (9,000 - x)/30
The domain of this function is the set of values of x for which the price is non-negative, since negative prices do not make sense in this context. Therefore, the domain is 0 ≤ x ≤ 9,000.
(B) The marginal cost is the derivative of the cost function with respect to x: C'(x) = 30
So the marginal cost is a constant value of 30 dollars per TV.
(C) The revenue function R(x) is the product of the demand x and the price p: R(x) = xp = x(9,000 - x)/30
The domain of this function is the same as the domain of the price function, which is 0 ≤ x ≤ 9,000.
(D) The marginal revenue is the derivative of the revenue function with respect to x: R'(x) = (9,000 - 2x)/30
(E) To find R'(3,000) and R'(6,000), we substitute x = 3,000 and x = 6,000 into the expression for R'(x):
R'(3,000) = (9,000 - 2(3,000))/30 = 100
R'(6,000) = (9,000 - 2(6,000))/30 = -100
Interpretation: R'(3,000) represents the extra money made from selling one more TV at a constant price when the demand is 3. When the demand is 6,000 TVs and the price remains the same, R'(6,000) represents the decrease in revenue from selling one fewer TV.
(F) To graph the cost function and the revenue function, we can plot the two functions on the same coordinate system, using the given domain of 0 ≤ x ≤ 9,000. The break-even points are the values of x for which the cost and revenue are equal, or C(x) = R(x).
C(x) = 150,000 + 30x
R(x) = x(9,000 - x)/30
Setting C(x) = R(x), we get:
150,000 + 30x = x(9,000 - x)/30
900,000 - 30x^2 = 30(150,000 + 30x)
900,000 - 30x^2 = 4,500,000 + 900x
30x^2 - 900x + 3,600,000 = 0
x^2 - 30x + 120,000 = 0
(x - 6,000)(x - 20) = 0
The break-even points are x = 6,000 and x = 20. These correspond to the intersections of the cost and revenue curves. The region to the left of x = 6,000 is a region of loss, since the revenue is less than the cost for x < 6,000. The region between x = 6,000 and x = 20 is a region of profit, since the revenue exceeds the cost for 6,000 < x < 20. The region to the right of x = 20 is again a region of loss, since the revenue is less than the cost for x > 20.
(G) The profit function is given by subtracting the cost function from the revenue function:
P(x) = R(x) -
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Help me... !AAAAAAAAAAAAA
Fraction ⇒ Decimal
Divide the numerator by the denominator.
(Numerator is the number on the top, denominator is the number on the bottom: \(\frac{numerator}{denominator}\))
Decimal ⇒ Percent
Multiply by 100 (OR Move the decimal 2 places to the right.)
Decimal ⇒ Fraction
Say the decimal out-loud (correctly). Write the fraction as it sounds, then simplify if needed.
Percent ⇒ Decimal
Divide by 100 (OR Move the decimal 2 places to the left)
It has been claimed that the best predictor of todays weather is todays weather. Suppose in the town of Octapa, if it rained yesterday, then there is a 60% chance of rain today, and if it did not rain yesterday there is an 85% chance of no rain today. A) find the transition matrix describing the rain probabilities. B) if it rained monday, what is the probability it will rain Wednesday? C) if it did not rain Friday, what is the probability of rain Monday? D) using the matrix from A. find the steady-state vector. use this to determine the probability that it will be raing at the end of time.
Therefore, the probability that it will be raining at the end of time is 37.5%.
A) To describe the transition matrix, we can use the following notation: R = It will rain N = It will not rain
Since it is given that if it rained yesterday, then there is a 60% chance of rain today, and if it did not rain yesterday there is an 85% chance of no rain today.
Thus, the transition matrix would be as follows:| P(R/R) P(N/R)| P(R/N) P(N/N)| = |0.6 0.4| |0.15 0.85|
B) If it rained Monday, then we need to find the probability that it will rain Wednesday.
We can find this by multiplying the probability of rain on Wednesday given that it rained on Monday and the probability that it rained on Monday.
Thus, the probability of rain on Wednesday, given that it rained on Monday would be:0.6 x 0.6 = 0.36So, there is a 36% chance that it will rain on Wednesday given that it rained on Monday.
C) If it did not rain Friday, then we need to find the probability of rain on Monday. Using Bayes' theorem, we can write: P(R/M) = P(M/R)P(R)/[P(M/R)P(R) + P(M/N)P(N)]where, M = It did not rain Friday= 0.15 (from the transition matrix)P(R) = Probability of rain = 0.6 (given in the problem)P(N) = Probability of no rain = 0.4 (calculated from 1 - P(R))P(M/R) = Probability of it not raining on Friday given that it rained on Thursday = 0.4P(M/N) = Probability of it not raining on Friday given that it did not rain on Thursday = 0.85Substituting these values, we get: P(R/M) = 0.4 x 0.6/[0.4 x 0.6 + 0.85 x 0.4] = 0.31 So, there is a 31% chance of rain on Monday given that it did not rain on Friday.
D) The steady-state vector is the vector that describes the probabilities of being in each of the states in the long run. To find the steady-state vector, we need to solve the following equation: πP = πwhere,π = steady-state vector P = transition matrix Substituting the values from the transition matrix, we get:| π(R) π(N)| |0.6 0.4| = | π(R) π(N)| | π(R) π(N)| |0.15 0.85| | π(R) π(N)|
Simplifying this, we get the following two equations:π(R) x 0.6 + π(N) x 0.15 = π(R)π(R) x 0.4 + π(N) x 0.85 = π(N) Solving these equations, we get: π(R) = 0.375π(N) = 0.625So, the steady-state vector is:| π(R) π(N)| = |0.375 0.625|This means that in the long run, there is a 37.5% chance of rain and a 62.5% chance of no rain.
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El perímetro de un rectángulo es 36cm Uno de los lados es 6cm más que el otro lado ¿ Cual es el área del rectángulo?
I need help it's geometry
Step-by-step explanation:
\( \sin(45) = \frac{x}{5} \\ \frac{1}{ \sqrt{2} } = \frac{x}{5} \\ x = \frac{5}{ \sqrt{2} } = 3.535\)
\( \sin(45) = \frac{y}{5} \\ y = \frac{5}{ \sqrt{2} } = 3.535\)
Answer:
\(\frac{5\sqrt{2} }{2 }\)
Step-by-step explanation:
x=y
45-45-90 equation is x-x- x square root of 2
Graph the function.
h(x) = -1/5x^2+2x
Answer:
Hello there I would love to assist but could you give me a little more info I think I know the answer but I want to make sure I got it 100% correct unless you cant give me more info ill just tell you what I think it is but if u can give me more info before I give u the answer to make sure its correct would be appreciated
Step-by-step explanation:
(G. 9A) In the triangle below, sin X= 10, what is the sine of yo? Write your answer as a fraction in the simplest form.
i’m not getting this one can anymore help??
Sin x of the given triangle is \(\frac{6}{10}\) and the Sin y is \(\frac{4}{5}\)
What is sin and cos?Along with the tan function, the fundamental trigonometric functions in trigonometry are sin and cos. In contrast to the cosine of an angle, which corresponds to the ratio of the nearby side to the hypotenuse, the sine of an angle is the ratio of the opposite side to the hypotenuse.The ratio of the perpendicular of a right-angled triangle to the hypotenuse is known as the sine of the angle. The following is the sin formula: sin = Perpendicular / Hypotenuse.An angle's cosine and sine are identical to each other, with the sine of an angle equal to the cosine of its complementary angle.Given data :
Sinθ = \(\frac{Opposite leg }{hypotenuse}\) = \(\frac{O}{H}\)
sin X = \(\frac{6}{10}\)
Sin y = \(\frac{sinx}{O}\)
= \(\frac{\frac{6}{10} }{8}\) = \(\frac{10}{8} * 6\)
= \(\frac{4}{5}\)
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pls help asap!!!!!!!
Answer:
144 m²
Step-by-step explanation:
Area of a parallelogram
= base × height
Area of the parallelogram
= 12 × 12
= 144 m²
The Answer Is 144 Inches Squared.
Area=BXH
Meaning, The Area Is 144 Inches Squared.
Change 9/15 as a percentage
Answer:
60%
Step-by-step explanation:
in a train yard there are tank cars, boxcars, and flatcars. how many ways can a train be made up consisting of tank cars, boxcars, and flatcars? (in this case, order is not important.)
There are 55 ways to form a train consisting of tank cars, boxcars, and flatcars by using concept of combinations.
If there are t tank cars, b boxcars, and f flatcars in the train yard, then the number of ways to form a train by selecting some of these cars is the same as the number of ways to distribute n = t + b + f identical objects into three distinct boxes, such that each box may receive any number of objects (including zero). The solution is given by the combination formula:
C(n + k - 1, k - 1)
where k is the number of boxes (in this case, k = 3). Therefore, the number of ways to form a train from t tank cars, b boxcars, and f flatcars is:
C(t + b + f + 3 - 1, 3 - 1) = C(t + b + f + 2, 2) = (t + b + f + 2)! / ((t + b + f)! * 2!)
There are 4 tank cars, 3 boxcars, and 2 flatcars in the train yard, then the number of ways to form a train is:
C(4 + 3 + 2 + 2, 2) = C(11, 2) = 55
Therefore, there are 55 ways to form a train consisting of tank cars, boxcars, and flatcars
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Given lines l, m, and n are parallel and cut by two transversal lines, find the value of x. Round your answer to the nearest tenth if necessary.
when lines l, m, and n are intersected by two transversal lines and are parallel, the value of x = 12.5 is obtained.
what is transversal lines ?A transversal in geometry is a line that, at two different places, traverses two lines in the same plane. If two or more additional lines in the Euclidean plane are parallel, transversals can help determine this.
Parallel lines l, m, and n are present.
These parallel lines cross two transversal lines.
theorem of intercept
Intercept lengths between parallel lines are proportionate.
\(\frac{16}{x} = \frac{23}{18}\)
x = (16 * 18) /23
x = 12.5
when lines l, m, and n are intersected by two transversal lines and are parallel, the value of x = 12.5 is obtained.
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independent random samples are selected from two populations. the summary statistics are given below. assume unequal variances for the following questions. test if the mean of the first population is larger than that of the second population. what is the p-value (round off to second decimal place)?
The mean of the first population is not significantly larger than that of the second population. The p-value is 0.093.
Population 1: N = 35,X = 5.3, S = 2.8
Population 2: N = 21, X = 4.9, S = 3.2
We can use the t-test to test if the mean of the first population is larger than that of the second population. The formula for this is:
t = (x1 - x2) / (S√((1/N1) + (1/N2)))
Where x1 is the mean of population 1, x2 is the mean of population 2, S is the pooled standard deviation, and N1 and N2 are the sample sizes of the two populations.
Plugging in our values, we get:
t = (5.3 - 4.9) / (3.2√((1/35) + (1/21))) = 1.68
Using an online calculator, we find that the corresponding p-value is 0.093. Therefore, we fail to reject the null hypothesis that the two populations have the same mean and conclude that the mean of the first population is not significantly larger than that of the second population. The p-value is 0.093.
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I NEEED HELP match the equation with the term it belongs to. 3.14 *r *r. 2* 3.14 *r
Answer:
3.14 * r * r = area of circle, 2 * 3.14 * r = circumference
Step-by-step explanation:
Remember these formulas, very important.
Divide 735 in the ratio 4:5:6
Answer:
196, 245, 294
Step-by-step explanation:
sum the parts of the ratio, 4 + 6 + 6 = 15 parts
Divide the total by 15 to find the value of one part of the ratio
735 ÷ 15 = 49 ← value of 1 part of the ratio, thus
4 parts = 4 × 49 = 196
5 parts = 5 × 49 = 245
6 parts = 6 × 49 = 294
harvesting at the mathematical maximum sustainable yield (msy) can be risky for the long term sustainability of a fishery.
T/F
True, Harvesting at the mathematical maximum sustainable yield (MSY) can be risky for the long-term sustainability of a fishery.
The concept of MSY is based on the idea of maximizing the catch of fish without depleting the population. However, it assumes that fish populations can be managed as single-species entities and that they can be harvested at a constant rate.
In reality, ecosystems are complex and interconnected, and fish populations interact with other species and the environment in various ways. Harvesting at the MSY level may not consider the broader ecological impacts and can lead to unintended consequences.
While maximizing the catch in the short term may seem beneficial, it can result in overfishing and the depletion of fish stocks over time.
This can disrupt the balance of the ecosystem, impact other species that rely on the fish population, and threaten the long-term sustainability of the fishery.
It is important to consider factors such as the reproductive capacity of fish, their life history traits, and the overall health of the ecosystem when setting sustainable fishing limits.
Sustainable fisheries management practices often involve adopting precautionary approaches that prioritize the conservation and responsible use of fishery resources to ensure their long-term viability.
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determine whether the relation defines y as a function of x. Guve the domain.
Answer
Explanation
Given:
\(y=-\frac{5}{x}\)To determine whether the relation defines y as a function of x, we get the domain first.
Based on the given relation, when we plug in x=0, the value would be undefined. So the function domain is x<0 or x>0.
Hence, the interval notation is:
\((-\infty,0)\cup(0,-\infty)\)We can use vertical line test to determine if it is a function as shown in the graph below:
As we can see, there's only one point of intersection so the relation defines y as a function of x. Therefore, the answer is:
Function; domain
\((-\infty,0)\cup(0,-\infty)\)true or false: if you are given a graph with two shiftable lines, the correct answer will always require you to move both lines.
False. if you are given a graph with two shif table lines, the correct answer will always require you to move both lines.
In a graph with two shiftable lines, the correct answer may or may not require moving both lines. It depends on the specific scenario and the desired outcome or conditions that need to be met.
When working with shiftable lines, shifting refers to changing the position of the lines on the graph by adjusting their slope or intercept. The purpose of shifting the lines is often to satisfy certain criteria or align them with specific points or patterns on the graph.
In some cases, achieving the desired outcome may only require shifting one of the lines. This can happen when one line already aligns with the desired points or pattern, and the other line can remain fixed. Moving both lines may not be necessary or could result in an undesired configuration.
However, there are also situations where both lines need to be shifted to achieve the desired result. This can occur when the relationship between the lines or the positioning of the lines relative to the graph requires adjustments to both lines.
Ultimately, the key is to carefully analyze the graph, understand the relationship between the lines, and identify the specific criteria or conditions that need to be met. This analysis will guide the decision of whether one or both lines should be shifted to obtain the correct answer.
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From a population of size 500, a random sample of 50 items is selected. The mode of the sample a. can be larger, smaller or equal to the mode of the population. b. must be equal to the mode of population, if the sample is truly random. c. must be equal to the mean of the population, if the sample is truly random. d. must be 500.
The sample mode might be greater, smaller, or equal to the population mode. Even if the sample is genuinely random, it does not have to be equal. The sample size is 50 rather than 500.
The mode of a population or sample is the value that occurs the most frequently within the set. A sample's mode might be greater, less, or equal to the population's mode. This is due to the fact that the sample is a subset of the population and may not include the same values, even if it is genuinely random. If the population's mode is 10, the mode of a sample drawn from it may be 12. The sample mode does not have to be identical to the population mean because they are computed differently. The mode is the most common value, whereas the mean is an average. Lastly, the sample size must be 50, not 500. This is due to the fact that the sample is a subset of the population and comprises just 50 items.
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Keisha is playing a game using a wheel divided into 8 equal sectors, as shown in the diagram below. Each time the spinner lands on blue, she will win a prize. If Keisha spins this wheel twice, what is the probability that she will win a prize on both spins?
In a wheel game with eight equally spaced sectors, Keisha's chances of winning a reward on both spins are 1/16.
What is a probability example?Probability—the possibility that an occurrence will happen—is calculated by dividing here the same number of favorable outcomes by the total number of possible outcomes. A coin toss serves as the most simple instance. If you flip a coin, there are only two possible outcomes: heads or tails.
The spinners will get a reward each everytime she lands on white. She will spin the wheel twice.
Here, there are two instances of such color white in the wheel, and there are a total of eight sectors. the likelihood that white will appear in the spin for the first time is,
P = 2/8
P = 1/4
The second case's circumstances are the same. In this instance, the outcomes including both wheel revolutions are independent of one another.
According to the product rule, the likelihood that a white sector will both spin and emerge is,
P = 1/4 * 1/4
P = 1/16
In a wheel game with eight equally spaced sectors, Keisha has a 1/16 chance of winning a reward on both spins.
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The complete question is-
Keisha is playing a game using a wheel divided into eight equal sectors, as shown in the diagram. Each time the spinner lands on white, she will win a prize. If she spins this wheel twice, what is the probability she will win a prize on both spins? Please show all steps!
Brooke went to Connie’s cafe and ordered the lunch special for $8.99 If she pays 0.74 in sales tax, how much should Brooke leave for a 25% tip?
Brooke paid $2.0625 for tip.
What is percentage?A percentage is a portion of a whole expressed as a number between 0 and 100 rather than as a fraction.
Given that, Brooke went to Connie’s café and ordered the lunch special for $8.99, and she pays 0.74 in sales tax and 25% as tip.
8.99-0.74 = 8.25
25% of 8.25 = 8.25*25/100 = 2.0625
Hence, Brooke paid $2.0625 for tip.
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Simplify three to the negative ninth divided by three to the negative twelfth.
one divided by the quantity three to the third
one divided by the quantity three to the twenty-first
33
321
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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:
Y=8x-32
Step-by-step explanation:
Point Form:
(4,0)
Equation Form:
x=4, y=0