b. i) The probability of winning all three matches is 1/27.
ii) The probability of winning more times than losing is 3/27.
iii) 7/27
iv) 2/27
c. many factors that can influence the outcome of a match such as the skill of the players, the tactics used by the teams and the condition of the playing surface.
What is probability?Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
a. Tree diagram:
Match 1 | Match 2 | Match 3
--------------------------------
Win | Win | Win
Draw | Draw | Draw
Lose | Lose | Lose
b. i) The probability of winning all three matches is P(Win, Win, Win) = (1/3) * (1/3) * (1/3) = 1/27
ii) The probability of winning more times than losing is
P(Win, Win, Draw) + P(Win, Draw, Win) + P(Draw, Win, Win)
= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)
= 3/27
iii) The probability of losing at least one match is
P(Lose, Win, Win) + P(Win, Lose, Win) + P(Win, Win, Lose) + P(Lose, Lose, Win) + P(Lose, Win, Lose) + P(Win, Lose, Lose) + P(Lose, Lose, Lose)
= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)
= 7/27
iv) The probability of either drawing or losing all three matches is
P(Draw, Draw, Draw) + P(Lose, Lose, Lose)
= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)
= 2/27
c. It is not very realistic to assume that the outcomes are equally likely in this case because there are many factors that can influence the outcome of a match such as the skill of the players, the tactics used by the teams and the condition of the playing surface.
Therefore, it is unlikely that all outcomes are equally likely as assumed in this case.
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6. Match each situation to one of the equations. (4 pts)
A
A whale was diving at a rate of 2 meters per second. How long will it take for
the whale to get from the surface of the ocean to an elevation of 12 meters
at that rate?
B.
A swimmer dove below the surface of the ocean. After 2 minutes, she was
12 meters below the surface. At what rate was she diving?
C.
The temperature was-12 degrees Celsius and rose to 2 degrees Celsius.
What was the change in temperature?
D. The temperature was 2 degrees Celsius and fell to -12 degrees Celsius. What
was the change in temperature?
The equation would be: ΔT = 2 - (-12) = 14 degrees Celsius, ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (-12 degrees Celsius)
A. d = rt, where d = 12 meters, r = 2 meters per second (rate), and t is the time it takes for the whale to get to an elevation of 12 meters. The equation would be:
12 = 2t
B. r = d/t, where r is the rate of diving, d = 12 meters (depth), and t = 2 minutes (time). The equation would be:
r = 12/(2 x 60) = 0.1 meters per second
C. ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (2 degrees Celsius), and T1 is the initial temperature (-12 degrees Celsius). The equation would be:
ΔT = 2 - (-12) = 14 degrees Celsius
D. ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (-12 degrees Celsius), and T1 is the initial temperature (2 degrees Celsius). The equation would be:
ΔT = -12 - 2 = -14 degrees Celsius
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Which of the following lines is parallel to the line that goes through the points (5, 8) and (3, 6)? Please help me!!!!!!
Answer:
Any line with the slope 1 or y = x + b
Step-by-step explanation:
Parallel lines by definition have the same slope
Value of the y-intercept or b doesn't matter in this case
You have to find the slope of the line through (3,6) and (5,8)
Slope equation is
[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]Plug in values given
[tex]\frac{8-6}{5-3}[/tex]
Evaluate
[tex]\frac{2}{2} =1[/tex]
Any line with the slope of 1 (or no co-efficient in front of x) would be parallel to the line through (3,6) and (5,8)
Question 1-12
6
Select all the expressions that are equivalent to 9x + 5(6/5x+3)-30
15x-30
16(x-2)
15x-15
15(x-1)
16(x-1)
16(x-1)
The equivalent expressions for the expression 9x + 5(6/5x+3)-30 are (15x-15) and 15(x-1).
Equivalent expressions:
Equivalent expressions are mathematical expressions that have the same value, even though they may look different.
Here are some examples:
2x + 4 and 4 + 2x are equivalent expressions.
(Proof: 2x + 4 = 4 + 2x for any value of x)
3(x + 2) and 3x + 6 are equivalent expressions.
(Proof: Distributing the 3, we get 3(x + 2) = 3x + 6)
Here we have
9x + 5(6/5x+3)-30
The above expression can be simplified as follows
=> 9x + 5(6/5x) +5(3) -30 [ Multiply 5 with (6/5x+3) ]
=> 9x + (6x) + 15 -30
=> 15x - 15 [ Add like terms ]
=> 15(x - 1) [ take 15 as common ]
Hence,
The equivalent expressions for the expression 9x + 5(6/5x+3)-30 are (15x-15) and 15(x-1).
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one angle of a triangle measures 20 and the other two angles are in a ratio of 3:5 what are the measures of the 2 angles
Answer:
60 and 100 degrees.
Step-by-step explanation:
Sum of the other 2 angles = 180-20 = 160 degrees.
3 + 5 = 8
160 / 8 = 20
- so the other 2 angles are:
3*20 = 60 and
5*20 = 100 degrees.
The first three terms of a sequence are given. Round to the nearest thousandth
75, 90, 108, ...
Find the 7th term.
The value of the 7th term of the geometric progression is 223.9488
Based on the information given,
First term = 75
Second term = 90
Common ratio = 90/75 = 1.2
The nth term of a geometric progression is calculated as:
[tex]a_n=ar^{r-1}[/tex]
The 7th term will then be:
[tex]= 75 \times (1.2)^6[/tex]
[tex]=75\times2.985984[/tex]
[tex]=223.9488[/tex]
Therefore, the value of the 7th term of the geometric progression is 223.9488.
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You were trying to answer a multiple choice question on a standardized test there are six choices if you get the question are you game and play if you get a wrong you lose 1/3 point assume you can eliminate one of the six choices and you choose one of the remaining five at random as your answer what is the expected value of the number of points you get
Let's first calculate the probability of getting the question right if you eliminate one of the six choices. Since there are six options, initially you have a 1/6 chance of getting the question right. If you eliminate one of the options, you are left with five choices, so your probability of getting the question right increases to 1/5.
Now, let's calculate the expected value of the number of points you get. If you get the question right, you earn one point. If you get the question wrong, you lose 1/3 point. So, we can write the expected value as:
Expected value = Probability of getting the question right x Points for a correct answer + Probability of getting the question wrong x Points for a wrong answer
Let's plug in the values:
Expected value = (1/5) x 1 + (4/5) x (-1/3)
Expected value = 1/5 - 4/15
Expected value = -1/15
So, the expected value of the number of points you get is -1/15. This means that, on average, you can expect to lose about 0.067 points for each question you attempt.
PLS HELP REALLY NEED IT
Answer:
An even function is symmetric about the y-axis. An odd function is symmetric about the origin. As the graphed function is neither symmetric about the origin, nor symmetric about the y-axis, it is neither even nor odd.
Step-by-step explanation:
Even and odd functions are special types of functions.
Even functionf(x) = f(- x) for all values of x.Symmetric about the y- axis.Example even function: y = x²Odd functionf(–x) = –f(x) for any value of x.Symmetric about the origin.Example odd function: y = x³An even function is symmetric about the y-axis. An odd function is symmetric about the origin. As the graphed function is neither symmetric about the origin, nor symmetric about the y-axis, it is neither even nor odd.
Prove the triangles are congruent. Make sure to include all the steps of a proof.
Check the picture below.
Given mn, find the value of x.
(2x+8)
PLS HURRY!! also i need alot of help so dont mind all the questions
The value of x in the diagram given in the question above is 61°
How do i determine the value of x?The value of x can be obtained as illustrated below:
Expression given: (x - 11)°, (2x + 8)°Value of x =?(x - 11)° + (2x + 8)° = 180° (angle on a straight line)
Clear the brackets
x - 11 + 2x + 8 = 180°
Rearranging the above, we have:
x + 2x - 11 + 8 = 180
3x - 3 = 180
Collect like terms
3x = 180 + 3
3x = 183
Divide both sides by 3
x = 183 / 3
x = 61°
Thus, from the above calculation, we can conclude that the value of x is 61°
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Which graph shows the solution to the equation below?
log Subscript 3 Baseline (x + 2) = 1
On a coordinate plane, a curve starts in quadrant 3 and curves up into quadrant 1 and approaches y = 3. It crosses the x-axis at (1, 0). A horizontal straight line is at y = 1.
On a coordinate plane, a curves starts in quadrant 4 and curves up into quadrant 1 and approaches y = 3. It crosses the x-axis at (1, 0). A horizontal straight line is at y = negative 1.
On a coordinate plane, a curve starts in quadrant 3 and curves up into quadrant 1 and approaches y = 1. It crosses the x-axis at (negative 1, 0). A horizontal straight line is at y = 1.
On a coordinate plane, a curves starts in quadrant 3 and curves up into quadrant 1 and approaches y = 2. It crosses the x-axis at (negative 1, 0). A horizontal straight line is at y = negative 1.
Nοne οf the given graphs match this descriptiοn, sο nοne οf them shοw the sοlutiοn tο the equatiοn.
What is the equivalent expressiοn?Equivalent expressiοns are expressiοns that wοrk the same way despite their appearance. If twο algebraic expressiοns are equivalent, then the twο expressiοns have the same value when the variable is set tο the same value.
The equatiοn lοg Subscript 3 Baseline (x + 2) = 1 can be rewritten as 3^1 = x + 2. This simplifies tο x = 1. Therefοre, the sοlutiοn tο the equatiοn is x = 1.
On the cοοrdinate plane, this sοlutiοn is represented by a vertical line passing thrοugh x = 1.
Hence, Nοne οf the given graphs match this descriptiοn, sο nοne οf them shοw the sοlutiοn tο the equatiοn.
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Answer: A
Step-by-step explanation:
Myra buys an old cell phone from her friend for $60 and signs up for a phone plan that costs $20
per month. Which graph represents Myra's total expenses, y, for the phone and x months on the
phone plan?
When x = 3, y = 60 + 20(3) = 120. So, we can plot the point (3, 120).
What is equation?An equation is a mathematical statement that uses symbols, numbers, and operations to show that two expressions are equal. It usually contains one or more variables, which represent unknown values that need to be solved for. Equations are used in a wide range of mathematical fields, such as algebra, geometry, calculus, and physics, to model real-world situations and solve problems. Some common examples of equations include:
Linear equation: y = mx + b
he total expenses for Myra's phone plan include the initial cost of buying the phone plus the monthly cost of the phone plan. Therefore, the total cost can be represented by the equation:
y = 60 + 20x
where y is the total cost and x is the number of months on the phone plan.
To graph this equation, we can plot a point at (0, 60) to represent the initial cost of buying the phone. Then, we can plot additional points by plugging in different values of x into the equation and finding the corresponding values of y. For example:
When x = 1, y = 60 + 20(1) = 80. So, we can plot the point (1, 80).
When x = 2, y = 60 + 20(2) = 100. So, we can plot the point (2, 100).
When x = 3, y = 60 + 20(3) = 120. So, we can plot the point (3, 120).
Connecting these points gives us a straight line, since the equation is linear.
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the marked price of an tv is 45000. after allowing certain percent discount and adding 13% vat, the tv is sold at rs 40680.calculate the selling price of tv without vat (ans=36,000)
Step-by-step explanation:
x = 45000 - (Discount % * 45000/100)
x = 45000 - (Discount % * 450)
Given that the selling price after adding 13% VAT is Rs. 40680, we can write:
x + (13% * x/100) = 40680
Simplifying the above equation, we get:
x = 36000
Therefore, the selling price of the TV without VAT will be x, which is Rs. 36000.
So the final answer is that the selling price of the TV without VAT is Rs. 36000
please mark brainliest
Estimate 15 times 34 by rounding each number to the nearest
The favorite ice cream bar of a family of four is packaged as 6 ice cream bars per box. The mother of the family wants to buy enough boxes of ice cream bars so that she can share the ice cream bars equally with all the members of the family, and there will be no extra ice cream bars left over. (a) What is the least number of boxes of ice cream bars she can purchase to achieve her goal? (b) How many ice cream bars will each family member receive? (c) Please explain how to solve the problem
Answer:
Step-by-step explanation:
If the mother wants to get the amount of ice cream bars that will not contain any leftovers for her family of four, the least amount of boxes the mother could purchase to receive her goal is 2 boxes
MATH-
1 box= 6 bars
2 boxes= the bars(6)x2, which is equal to 12 ice cream bars
If you split 12 evenly between the members of her family which is 4 people,
12÷4=3 or 4x3=12
each family member would receive 3 ice cream bars each.
A book sold 35,500 copies in its first month of release. Suppose this represents 9.9% of the number of copies sold to date. How many copies have been sold to date?
Round your answer to the nearest whole number.
Answer:
Step-by-step explanation:
smelly a becasue
A full glass of water can hold 1/6 of a bottle. How many glasses of water can be filled with 3 1/2 bottles of water?
Answer:
21
Step-by-step explanation:
[tex]\frac{x}{6}=\frac{7}{2} \\x=21[/tex]
Answer:
21 glasses------------------------------
Let the number of glasses be g.
Then g glasses can be filled with 3 1/2 bottles of water.
Set up equation to represent this and solve for g:
(1/6)g = 3 1/2(1/6)g = 7/2g = 7/2 : 1/6 g = 7/2 * 6g = 7*3g = 213(x-4)-2>5x solve for x
Answer:
x < -7
Step-by-step explanation:
3(x-4)-2>5x
3x - 12 - 2 > 5x
3x - 14 > 5x
-2x > 14
x < -7
Answer: x<-7
Step-by-step explanation: 3(x-4)= 3x-12
3x-14>5x
5x-3x=2x
-14>2x
-14/2=-7
-7>x
Abby tosses one penny and Babby tosses two pennies. What is the probability that Babby gets the same number of heads that Abby gets?
The probability that Babby gets the same number of heads that Abby gets is 1/8 + 1/8 = 1/4. To solve this problem, we need to consider all the possible outcomes of Abby and Babby's coin tosses.
There are four possible outcomes for Abby's toss: heads or tails, and two outcomes for Babby's toss: heads or tails. Therefore, there are a total of 4 x 4 = 16 possible outcomes for the two coin tosses.
To determine the probability that Babby gets the same number of heads as Abby, we need to identify the outcomes where this happens. Abby can get either 0 or 1 heads, so we need to consider the outcomes where Babby gets 0 or 1 heads as well.
The possible outcomes where Abby gets 0 heads are:
Abby: tails, Babby: tails tails
Abby: tails, Babby: heads tails
In both of these outcomes, Babby also gets 0 heads, so the probability of this happening is 2/16 = 1/8.
The possible outcomes where Abby gets 1 head are:
Abby: heads, Babby: tails heads or heads tails
Abby: tails, Babby: heads heads
In two of these outcomes, Babby also gets 1 head, so the probability of this happening is 2/16 = 1/8. Therefore, the probability that Babby gets the same number of heads that Abby gets is 1/8 + 1/8 = 1/4.
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b/4 + 2 = -1 please help
Answer : The answer is B= -12
The table represents the equation y=2-4x
The missing value in the table for x = –1 is Y=6 is the value that x=-1 lacks.
Describe equation-An equation is a mathematical statement that two expressions are equal. It consists of two expressions that contain numbers, variables, and/or operators, and is written in a symbolic form. Equations are used to explain a variety of real-world phenomena and also used to describe the behavior of physical systems.An equation can be used to solve for a single unknown variable or to find relationships between multiple variables.
How to resolve the equation?
The equation's unknown value can be obtained by inserting known values for them.
Provided is the equation y=2-4x.
discover y when x=-1
Replace x=-1 in the given equation,
We obtain y=2-4 (-1)
y=6
Therefore, the value of y at x=-1 is 6.
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Complete questions as follows-
The table represents the equation y = 2 – 4x The x-values are the The y-values are the The missing value in the table for x = –1 is y =
PLEASE PLEASE HELP IT IS DUE TONIGHT!!!
I need help with number 9.
USE MATH WAY IT HELPS ALOT
Write an equation in point-slope form that has a y-intercept at (0, -3) and also contains the point (4, 5).
Write your answer as an equation with numbers, letters, and symbols - no spaces.
Answer: The point-slope form of an equation of a line is: y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope.
We are given the y-intercept at (0, -3), which means that this point is on the line and that the line crosses the y-axis at y = -3. Therefore, the y-coordinate of the y-intercept is -3.
We are also told that the line passes through the point (4, 5), which means that this point is also on the line. Therefore, x1 = 4 and y1 = 5.
To find the slope of the line, we can use the two points (0, -3) and (4, 5):
slope = (y2 - y1) / (x2 - x1)
slope = (5 - (-3)) / (4 - 0)
slope = 8 / 4
slope = 2
Now that we have the slope and a point on the line, we can use the point-slope form to write the equation of the line:
y - y1 = m(x - x1)
y - 5 = 2(x - 4)
This is the equation of the line in point-slope form that has a y-intercept at (0, -3) and also contains the point (4, 5).
Step-by-step explanation:
Suppose you trap 255 stickleback fish in a lake and mark them by clipping the first spine of their dorsal fins. One month later you recapture a total of 162 individuals, 78 of them marked. Estimate the total population size.
The estimated total population size of stickleback fish in the lake is approximately 530 individuals.
The mark and recapture method can be used to estimate the total population size of a species in a particular area. Based on the information provided, we can use the Lincoln-Petersen method to estimate the population size.
The formula for the Lincoln-Petersen method is
N = (M x R) / C
Where
N = total population size
M = number of individuals in the first sample (marked individuals)
R = number of individuals in the second sample (recaptured individuals)
C = number of marked individuals recaptured in the second sample
Using the given information, we can plug in the values to the formula
N = (255 x 162) / 78
N = 529.62
N = 530
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In ΔWXY, y = 940 inches, mm∠Y=100° and mm∠W=38°. Find the length of w, to the nearest inch
Rounding to the nearest inch, the length of side W (w) is approximately 588 inches.
Here, we have,
To find the length of side W (w) in triangle WXY, we can use the Law of Sines, which states:
a/sin(A) = b/sin(B) = c/sin(C)
where:
a, b, c are the side lengths of the triangle.
A, B, C are the opposite angles to sides a, b, c, respectively.
In this case, we have:
Side XY = y = 940 inches
Angle Y = ∠Y = 100°
Angle W = ∠W = 38°
We want to find the length of side W (w).
Using the Law of Sines:
w/sin(∠W) = y/sin(∠Y)
Now, substitute the given values:
w/sin(38°) = 940/sin(100°)
Now, solve for w:
w = (940 * sin(38°)) / sin(100°)
Using a calculator:
w ≈ (940 * 0.6157) / 0.9848
w ≈ 588.388
Rounding to the nearest inch, the length of side W (w) is approximately 588 inches.
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PLEASE HELP! NONE OF THE TUTORS ARE ONLINE!
Answer:
4 if x < 3
Step-by-step explanation:
First, find the equation of the line. From the graph we can tell the y-intercept is 4 and the slope is 0. Using y=mx+b, we find that y=(0)x+4 (same as y=4). f(x) is the same as y, so all you have to write is 4.
To find the domain, you must look at where the function is defined. It is only defined to the left of the point (3,4), where x < 3. We know its only defined there because the arrow and line only go in that direction. We know that it should be a < not a ≤ because the point at (3,4) is hollow, so (3,4) is not a point in the function and not included in the domain.
Find the Exact answer:
Answer:
-1
Step-by-step explanation:
calculator
:)
in this problem you will solve the nonhomogeneous system a. write a fundamental matrix for the associated homogeneous system 1 1 2 0 b. compute the inverse c. multiply by and integrate (do not include and in your answers). d. give the solution to the system (do not include and in your answers). if you don't get this in 2 tries, you can get a hint.
a. Φ(t)= P.D.[tex]P^{-1}[/tex] is the fundamental matrix of the homogeneous system.
b. [tex]P^{-1}[/tex]= 1/√5 || 1 2 || || -2 1 || is the inverse
c. x(t)= Φ(t)∫ Φ(t)-1.b(t) dt + Φ(t).[tex]x_0[/tex]
d. The solution to the system is x(t)= || e-t/√5 (1-e2t)/2√5 - (2e2t -3)/2√5 || || 1/√5 e-t/√5 +2/√5 (e2t-1)/2√5 ||
In this problem, we will solve the nonhomogeneous system.
Firstly, we will write a fundamental matrix for the associated homogeneous system 1 1 2 0.
a) Fundamental matrix for the homogeneous system
The homogeneous system of equations can be written as:
X'=AX
Here, X is the vector of unknowns, and A is a matrix of constants.
For the given homogeneous system of equations, we have:
1 1 2 0X1' X2'= 1 2 X1X2
X'= AX
Thus, the matrix A can be written as:
A= 1 2 1 0
Now, let us solve the eigenvalue problem for matrix A as follows:
| A - λI |= 0
⇒| 1 - λ 2 || 1 || λ - 0 || 1 || 2 || 0 - λ || 0 |
⇒ (1-λ)(0-λ)-2⋅1=0
⇒ λ2 - λ - 2 = 0
On solving, we get:
λ1 = -1 and λ2 = 2
Thus, the eigenvectors corresponding to these eigenvalues are:
For λ1 = -1, A - (-1)I= 2 2 || x || = 0 1 || y ||
⇒2x+2y = 0y = -2x
Thus, the eigenvector corresponding to λ1 is:
x1= || 1 || and x2 = || -2 ||
The normalized eigenvector corresponding to λ1 is:
x1= || 1/√5 || and x2 = || -2/√5 ||
For λ2 = 2, A - 2I= -1 2 || x || = 0 -2 || y ||
⇒-x+2y = 0y = 1/2x
Thus, the eigenvector corresponding to λ2 is:
x1= || 2 || and x2 = || 1 ||
The normalized eigenvector corresponding to λ2 is:
x1= || 2/√5 || and x2 = || 1/√5 ||
Thus, the matrix P of eigenvectors is:
P= || 1/√5 -2/√5 || || 2/√5 1/√5 ||
Hence, the fundamental matrix of the homogeneous system is:
Φ(t)= P.D.[tex]P^{-1}[/tex]
where D= diagonal matrix of eigenvalues= || -1 0 || || 0 2 ||and [tex]P^{-1}[/tex] is the inverse of matrix P.
We will now find the inverse of matrix P.
b) Computation of inverse of matrix P
The inverse of matrix P is:
[tex]P^{-1}[/tex]= 1/√5 || 1 2 || || -2 1 ||
c) Multiplication by and integration
Multiplying Φ(t) by e
At, we have:e AtΦ(t)= PeDt.
[tex]P^{-1}[/tex].eAt= P.|| e-1t 0 || || 0 e2t ||.[tex]P^{-1}[/tex]
The solution to the system is:
x(t)= Φ(t)∫ Φ(t)-1.b(t) dt + Φ(t).[tex]x_0[/tex]
where b(t) is the vector of inhomogeneous terms, and [tex]x_0[/tex] is the initial condition.
d) Solution to the system
The nonhomogeneous system of equations can be written as:
X'=AX + b
where b= 1 [tex]e^{-t}[/tex]
The solution to the system is:
x(t)= Φ(t)∫ Φ(t)-1.b(t) dt + Φ(t).x0= P.|| e-t/√5 (e2t -1)/2√5 || || -2(e2t-1)/2√5 e-t/√5 ||.P-1 .|| 0 || || 1 ||+ P.|| 1/√5 -2/√5 || || e-t/√5 (e2t -1)/2√5 || || -2(e2t-1)/2√5 e-t/√5 ||.P-1 .|| -1/√5 || || 2/√5 ||= || 1/√5 -2/√5 || || e-t/√5 (1-e2t)/2√5 || || (e2t-3)/2√5 e-t/√5 ||.|| 0 || || 1 ||+ || 1/√5 -2/√5 || || e-t/√5 (e2t -1)/2√5 || || -2(e2t-1)/2√5 e-t/√5 ||.|| -1/√5 || || 2/√5 ||
The final answer is: x(t)= || e-t/√5 (1-e2t)/2√5 - (2e2t -3)/2√5 || || 1/√5 e-t/√5 +2/√5 (e2t-1)/2√5 ||
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a history of active exercise was compared between women with hip fracture and unmatched controls. active exercise in the previous two years was reported by 31% of the cases and 46% of the controls. what is the association between hip fracture and active exercise?
There is a potential association between hip fracture and active exercise, as a smaller proportion of women with hip fracture reported active exercise compared to the controls
Based on the provided information, we can say that there is a potential association between hip fracture and active exercise. The fact that a smaller proportion of women with hip fracture reported active exercise compared to the controls suggests that active exercise may have a protective effect against hip fracture.
However, it's important to note that this comparison alone does not establish a cause-and-effect relationship between active exercise and hip fracture. Other factors, such as age, bone density, and overall health status, may also play a role in the development of hip fractures.
To further evaluate the relationship between hip fracture and active exercise, additional research would be needed, including studies with larger sample sizes, more detailed information on exercise habits, and adjustments for potential confounding factors.
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can someone helpp please
The center of the specified circle is at (-7, 4). Thus, the updated center will be (-7 - 3, 4 - 4) = (-10, 0).
What are the new equation and circle center?In order to move the circle 3 units to the right and 4 units below, we must subtract 3 from x and 4 from y. Thus, the updated center will be (-7 - 3, 4 - 4) = (-10, 0).
The equation for the resulting circle can be discovered by adding the new center and simplifying. The standard version of the circle's equation is [tex](x - h)^2 + (y - k)^2 = r^2[/tex], with (h, k) denoting the circle's center and r denoting the radius. We can use the new center (-10, 0) and the original equation [tex](x+7)^2+(y-4)^2=36[/tex]to replace the original equation.
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Use substitution to solve the system 5r+2w=68, r=3w
Answer:
4
Step-by-step explanation:
5r+2w=685(3w)+2w=6815w+2w=6817w=68w=68/17w=4Answer: w=4
Step-by-step explanation:
1). 5(3w)+2w=68
2). 15w+2w=68
3). 17w=68
4). 17w/17=68/17
5). w=4