Answer:Find the most dollars per hour. Find the least hours worked per dollar paid.
Step-by-step explanation:
let be a dodecagon (12-gon). three frogs initially sit at and. at the end of each minute, simultaneously, each of the three frogs jumps to one of the two vertices adjacent to its current position, chosen randomly and independently with both choices being equally likely. all three frogs stop jumping as soon as two frogs arrive at the same vertex at the same time. what is the expected number of minutes until the frogs stop jumping?
The expected number of minutes until the frogs stop jumping is 4, regardless of their initial positions.
Let's consider the probability that all three frogs are at different vertices at a given time. The first frog can land on any of the 12 vertices, the second frog can land on either of the two adjacent vertices to the first frog, and the third frog can land on either of the two adjacent vertices to the second frog that are not adjacent to the first frog. Therefore, the probability that all three frogs are at different vertices is:
\(P(all $ different) = 12 * 2/11 * 2/10 = 24/55\)
If all three frogs are at different vertices, then none of them can jump to the other two vertices adjacent to their current position, otherwise they will meet. Therefore, the next time they can meet is after the first jump of the frog that is alone, and this will happen with probability 1/3.
If two frogs meet, the expected number of minutes until the third frog joins them is just the expected number of minutes until two frogs meet, which is the same as the expected number of minutes until the frogs stop jumping. Therefore, it suffices to compute the expected number of minutes until the frogs jump to the same vertex for the first time, given that all three frogs are at different vertices.
Let T be the expected number of minutes until the frogs jump to the same vertex for the first time. Conditioning on the first jump, we have:
\(T = 1/3 * 1 + 2/3 * (T + 1)\)
The first term corresponds to the case where the frog that is alone jumps to one of the two vertices adjacent to one of the other frogs and they meet. The second term corresponds to the case where the frog that is alone jumps to the vertex adjacent to the other frog and the third frog jumps to the same vertex with probability 1/2, or they jump to different vertices with probability 1/2 and we are back to the starting position, but with one less frog being alone.
Solving for T, we get:
T = 4
Therefore, the expected number of minutes until the frogs stop jumping is 4, regardless of their initial positions.
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what is : 1.25 + (-0.75)
Answer:
0.5
Step-by-step explanation:
use a cauculator
Answer:
0.50
Step-by-step explanation:
You can rewrite this as 1.25 - 0.75. When you do this, you will get 0.50
A sample of 10 washing machines is selected from a process that is 8% nonconforming. What is the probability of 1 nonconforming washing machine in the sample
To solve this problem, we can use the binomial probability formula:
P(X=k) = (n choose k) * p^k * (1-p)^(n-k)
Where:
- P(X=k) is the probability of getting k nonconforming washing machines in the sample
- n is the sample size, which is 10 in this case
- p is the probability of getting a nonconforming washing machine, which is 0.08
- (n choose k) is the binomial coefficient, which is the number of ways to choose k items from n without replacement, and is calculated as n! / (k! * (n-k)!)
So, to find the probability of getting 1 nonconforming washing machine in the sample, we plug in k=1:
P(X=1) = (10 choose 1) * 0.08^1 * (1-0.08)^(10-1)
P(X=1) = 10 * 0.08 * 0.9227
P(X=1) = 0.0738
Therefore, the probability of getting 1 nonconforming washing machine in the sample is approximately 0.0738, or 7.38%.
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Will give brainliest. Suppose that when your friend was born, your friend's parents deposited $6000 in an account paying 4.1% interest compounded quarterly. What will the accou
balance be after 19 years?
Answer:
$13024.00
Step-by-step explanation:
Use the compound interest formula we learned in algebra 1.
Given that event E has a probability of 0.31, the probability of the complement of event E
Explanation: We subtract the given value from 1
1-0.31 = 0.69
The complement of an event is the complete opposite.
Example: heads vs tails
Use+the+information+in+scenario+4.2.+what+is+the+normal+time+for+this+job+element+if+the+rating+factor+is+75%?
Based on the rating factor of 75%, the normal time for the job element would be 11.19 seconds.
What is the job element's normal time?When given the rating factor, the normal time can be found as:
= Average time for the job element x Rating factor
Average time for the job factor is:
= [(10 x 18) + (15 x 25) + (20 x 17)] / (18 + 25 + 17)
= 14.92 seconds
The normal time for the job element is therefore:
= 14.92 x 0.75
= 11.19 seconds
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What is the solution to the system of equation y 4x 10?.
x=\(\frac{y+1o}{4}\) is the solution of the eqution y=4x+10.
From liner eqution solving methodAn liner equation is said to be linear if the maximum power of the variable is consistently 1. Another name for it is a one-degree equation. A linear equation with one variable has the conventional form Ax + B = 0. In this case, the variables x and A are variables, while B is a constant. A linear equation with two variables has the conventional form Ax + By = C. Here, the variables x and y, the coefficients A and B, and the constant C are all present.
From the question y=4x-10
add 10 both side
y+10=4x
Divide both side with 4
x = \(\frac{y+1o}{4}\)
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NOTE: The given question is incomplete on the portal. Here is the complete question.
Question: What is the solution to the system of equation y = 4x - 10 ?
Can you some please help me with this ASAP!!!
Answer:
slope is 0
Step-by-step explanation:
to find slope y2 - y1 / x2 - x1
(6, -2) and (12, -2)
-2 - (-2) / 12 - 6
= -2 + 2/6
= 0/6
= 0
Answer:
slope is 0
Step-by-step explanation:
At a local car dealership a particular salesperson sells an average of 3. 1 cars per week with a standard
deviation of 1. 1 cars. The dealership pays her $300 a week plus a commission of $250 for each car that
she sells. What are the mean and standard deviation, respectively, of her total weekly pay? PLs help
The standard deviation of her total weekly pay is approximately $262.25 and the mean is $1075
Let X be the number of cars the salesperson sells in a week. Then, X follows a normal distribution with mean μ = 3.1 and standard deviation σ = 1.1.
The total weekly pay Y is given by the equation:
Y = $300 + $250X
Using the properties of means and variances of linear combinations of random variables, we can find the mean and standard deviation of Y as follows:
Mean of Y:
E(Y) = E($300 + $250X) = $300 + $250E(X) = $300 + $250(3.1) = $1075
Therefore, the mean of her total weekly pay is $1075.
Standard deviation of Y:
Var(Y) = Var($250X) = $250^2Var(X) = $250^2(1.1^2) = $68,750
Since the standard deviation is the square root of the variance, we have:
SD(Y) = sqrt($68,750) ≈ $262.25
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Given that angle a = 54° and angle b = 48°, work out x.
a
b
x
The diagram is not drawn accurately.
=
PLEASE HELP ASAP!! 20 POINTS!!
Plz help due tonight
Answer:
\(4x + 8 = 2x + 3 + 51 \\ 4x - 2x = 54 - 8 = 46 \\ 2x = 46 \\ x = 46 \div 2 = 23 \\ 2x + 3 = 2 \times 23 + 3 = 49 \\ 51 \\ 80\)
enjoy it
What is the following product?
Answer:
the answer is the third one
Answer:
= 5.291503x − 16.970563
Step-by-step explanation:
In a proof what is the reason that justifies this statement:
Segment BP is congruent to segment BP.
Answer: I believe that the BP segment is equal to BP segment because of the reflexive property.
Step-by-step explanation:
The required reason is that segment BP is congruent to segment BP that Segment BP is the common side among both triangles.
In congruent geometry, the shapes that are so identical. can be superimposed on themselves.
Here,
The necessary explanation is that segment BP and segment BP are congruent because segment BP is the common side of both triangles BPS and BPY, as shown in the figure.
Thus, the required reason is that segment BP is congruent to segment BP and that Segment BP is the common side among both triangles.
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Which equation represents an exponential function that passes through the point (2, 80)?
f(x) = 4(x)5
f(x) = 5(x)4
f(x) = 4(5)x
f(x) = 5(4)x
The function f(x) = 5(x)⁴, and f(x) = 5(4)ˣ represents the function that passes through the point (2, 80) option second and fourth are correct.
What is an exponential function?It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent \(\rm y = a^x\)
where a is a constant and a>1
We have; an exponential function that passes through the point (2, 80).
f(x) = 4(x)⁵
Plug (2, 80) in the abovew function:
f(2) = 4(2)⁵ = 128 (false)
f(x) = 5(x)⁴
Plug (2, 80) in the abovew function:
f(2) = 5(2)⁴ = 80 (true)
f(x) = 4(5)ˣ
f(2) = 4(5)² = 100 (false)
f(x) = 5(4)ˣ
f(2) = 5(4)² = 80 (true)
Thus, the function f(x) = 5(x)⁴, and f(x) = 5(4)ˣ represents the function that passes through the point (2, 80) option second and fourth are correct.
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find the distance from the point (6, 1, −1) to the plane x − 2y 2z 1 = 0.
The distance from the point (6, 1, -1) to the plane x - 2y + 2z + 1 = 0 is 1 unit.
To find the distance from a point to a plane, we can use the formula for the distance between a point and a plane.
Let's denote the given point as P(6, 1, -1) and the equation of the plane as Ax + By + Cz + D = 0, where A, B, C, and D are the coefficients of the plane equation.
The formula for the distance (d) between a point (x0, y0, z0) and a plane Ax + By + Cz + D = 0 is:
d = |Ax0 + By0 + Cz0 + D| / √(A² + B² + C²)
In this case, the equation of the plane is x - 2y + 2z + 1 = 0, which can be written as 1x - 2y + 2z + 1 = 0.
Comparing coefficients, we have:
A = 1
B = -2
C = 2
D = 1
Substituting the values into the distance formula, we get:
d = |1(6) + (-2)(1) + 2(-1) + 1| / √(1² + (-2)² + 2²)
= |6 - 2 - 2 + 1| / √(1 + 4 + 4)
= |3| / √(9)
= 3 / 3
= 1
Therefore, the distance from the point (6, 1, -1) to the plane x - 2y + 2z + 1 = 0 is 1 unit.
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A university department installed a spam filter on its computer system. During a 21-day period, 6693 messages were tagged as spam. How much spam you get depends on what your online habits are. Here are the counts for some students and faculty in this department (with log-in IDs changed, of course): ID Count ID Count ID Count ID Count AA 1818 BB 1358 CC 442 DD 416 EE 399 FF 389 GG 304 HH 251 || 251 JJ 178 KK 158 LL 103 All other department members received fewer than 100 spam messages. How many did the others receive in total? Make a graph and comment on what you learn from these data. .
The number of people who received fewer than 100 spam messages in the university department is calculated below:
Total number of messages tagged as spam = 6693
Total number of people = 12
Total number of people who received more than 100 spam messages = 11
Number of people who received fewer than 100 spam messages = 1
The number of people who received fewer than 100 spam messages can be calculated by subtracting the total number of people who received more than 100 spam messages from the total number of people in the department.
Thus, the other 1 person received a total of: 6693 - (1818 + 1358 + 442 + 416 + 399 + 389 + 304 + 251 + 251 + 178 + 158 + 103) = 474
Graph illustrating the data collected from students and faculty in the department. it is clear that the majority of students and faculty members in the department received more than 100 spam messages. One person received fewer than 100 spam messages. The number of spam messages received seems to decrease with time, which may indicate that the spam filter is effective.
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Which panda was heavier when born
Answer: The one on the left.
Step-by-step explanation:
There is no file, but the panda on the left is bigger.
In recent years, a town experienced an arrest rate of 25% for robberies. The new sheriff compiles records showing that among 30 recent robberies, the arrest rate is 30%; he claims that this arrest rate is greater than the 25% arrest rate in the past. Using a 0. 05 significance level to test the claim, find the P-value. A. 0. 7357 B. 0. 2643 C. 0. 6300 D. 0. 5286
The p-value for the test is approximately 0.2643. This indicates that there is a 26.43% chance of observing a sample proportion as extreme as 0.30 or greater, assuming the null hypothesis is true.
Since the p-value is greater than the significance level of 0.05, we do not have enough evidence to reject the null hypothesis. This means that we fail to find significant evidence that the current arrest rate is greater than the past arrest rate of 25%.
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Let x = 3, y = -2, and z = 5, Evaluate 8x2 -6y + 2z
Chelsea is making a necklace she uses 6 blue beads for every 1 silver bead complete the table to show the ratio of blue beads to silver beads?
Answer: 12:2, 18:3, 24:4
Step-by-step explanation: You can multiply 6 by 2, 3, and 4 because the graph has 4 columns. Then multiply the top by 2, 3, and 4,
can someone help me out here asap please and thank you in advance
Answer:
The angle shown is a straight line
- They always add up to 180 degrees.
So what you should do here is add uo both sides
74 + 69 = 143
Then take it away from 180 degrees to find x
180 - 143 = 37
So x = 37 degrees.
Please help out, i cant risk failing this test. :(
Which rule maps figure 1 onto figure 2?
A. (x,y)→(x-5, y-11)
B. (x,y)→(x-5, y+11)
C. (x,y)→(x+5, y-11)
D. (x,y)→(x+5, y+11)
Answer:
b
Step-by-step explanation:
just move the shape with cordinantes of b
The rule that maps figure 1 onto figure 2 is B. (x,y)→(x-5, y+11)
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable).
If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, therefore,
Horizontal shift (also called phase shift):
Left shift by c units:
y=f(x+c) (same output, but c units earlier)
Right shift by c units:
y=f(x-c)(same output, but c units late)
The correct option is B.
(x,y)→(x-5, y+11)
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If one angle of a triangle is 100
and the other two angles are
equal, what is the measure of
each unknown angle?
(I know nobody has answered this yet..)
Answer:
40
Step-by-step explanation:
180-100=80÷2=40
hope this helps please rate 5 stars and thanks it
have a good day
Answer:
both unknown angles: 40°
Explanation:
let the angle be x,so both angles together would be 2xtotal interior angle of the triangle is 180°
solve:
x + x = 100 = 180
2x = 180° - 100°
2x = 80°
x = 40°
please help me with math please please
Mode:
There is no mode, so it can't be that.
Median:
The middle value is 6
Mean:
The mean is (4+5+6+7+8)/5 = 30/5 = 6
Median and Mean are the same.
(28 POINTS) write the next three terms in the sequence.
Answer:
25, 34, 43
Step-by-step explanation:
its +9 per number
is B= -3x - 7x^2 and C = -x^2 - 8 - x, find an expression that equals 3b-3c in standard form
Therefore, the expression that equals 3B - 3C in standard form is -21x² - 6x + 24.
What is expression?In mathematics, an expression is a combination of numbers, variables, and operations that can be evaluated or simplified to obtain a single value or another expression. In algebra, expressions are often used to represent mathematical relationships or formulas, and can be manipulated using various algebraic techniques such as factoring, expanding, simplifying, and solving for unknown variables. Expressions are also used in calculus, probability theory, and many other branches of mathematics to describe mathematical models and relationships.
Here,
We can start by substituting the expressions for B and C into the expression for 3B - 3C and simplifying:
3B - 3C = 3(-3x - 7x²) - 3(-x² - 8 - x)
= -9x - 21x² + 3x² + 24 + 3x
= -21x² - 6x + 24
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Could use some help
The quadrilateral FGHI is a parallelogram
How to complete the blanksFrom the question, we have the following parameters that can be used in our computation:
F = (0, -6), G = (7, -4), H = (8, 4), I = (1, 2)
The lengths can be calculated as
Lengths = √[(x₂ - x₁)² + (y₂ - y₁)²]
Using the above as a guide, we have the following:
FG = √[(0 - 7)² + (-6 + 4)²] = √53
GH = √[(8 - 7)² + (4 + 4)²] = √65
HI = √[(8 - 1)² + (4 - 2)²] = √53
IF = √[(1 - 0)² + (2 + 6)²] = √65
For the slopes, we have
Slope = (y₂ - y₁)/(x₂ - x₁)
So, we have
FG = (-6 + 4)/(0 - 7) = 2/7
GH = (4 + 4)/(8 - 7) = 8
HI = (4 - 2)/(8 - 1) = 2/7
IF = (2 + 6)/(1 - 0) = 8
Based on the above computations, we have
Opposite sides are equalOpposite sides are parallelHence, the shape is a parallelogram
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Lesson Check
Choose the correct answer.
5. Greg has 27 toy trucks. He divides them into
3 equal groups. How many toy trucks are in
each group?
A hot air balloon was flying at an altitude of 300 meters when the pilot decided to land by descending at a rate of 2 meters per second.For which of these functions doesy represent the altitude of the hot air balloon if x represents the number of seconds since the pilot started her landing?
Triangles acd and bcd are isosceles. Angle bac has a measure of 18 degrees and angle bdc has a measure of 48 degrees. Find the measure of angle abd.
The measure of angle ABD if triangles ACD and BCD are isosceles is 138 degrees
What are isosceles triangles?
Isosceles triangles are triangles that have two sides equal in measurement.
Main Body:
From the given diagram;
∠BAC = 18 degrees
∠BDC = 48 degrees
Required angle : ∠ABD
From the diagram, ∠DAB = ∠BAC = 18 degrees
Also, ∠ADC + ∠ACD + ∠DAC = 180
Since triangles ACD is isosceles, hence ∠ADC = ∠ACD. The expression above becomes
∠ADC + ∠ADC + ∠DAC = 180
2∠ADC + ∠DAC = 180
2∠ADC = 180 - 36
2∠ADC = 144
∠ADC = 144/2
∠ADC = 72 degrees
This means that ∠ADB = 72 - ∠BDC
∠ADB = 72 - 48
∠ADB = 24 degrees
Get the required angle ABD
From triangle ADB, ∠ABD + ∠ADB + ∠DAB = 180
∠ABD + 24 + 18 = 180
∠ABD + 42 = 180
∠ABD = 180 - 42
∠ABD = 138 degrees
Hence the measure of angle ABD if triangles ACD and BCD are isosceles is 138 degrees.
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