Answer:
last one
Step-by-step explanation:
6 3x2/8x2= 6 6/16
6 +5=11
6/16+11/16=17/16
11 17/16
if the coefficient of determination is 0.94, what can we say about the relationship between two variables? multiple choice the direction of the relationship is negative. ninety-four percent of the total variation of the dependent variable is explained by the independent variable. the direction of the relationship is positive. the strength of the relationship is 0.94.
If the coefficient of determination is 0.94, we can say that ninety-four percent of the total variation of the dependent variable is explained by the independent variable. The correct answer is: ninety-four percent of the total variation of the dependent variable is explained by the independent variable.
This means that there is a strong positive relationship between the two variables. The coefficient of determination, represented as R², measures the proportion of the total variation in the dependent variable that is explained by the independent variable. In this case, an R² of 0.94 indicates that 94% of the total variation in the dependent variable can be explained by the independent variable. The coefficient of determination does not provide information about the direction or strength of the relationship. The correct answer therefore is ninety-four percent of the total variation of the dependent variable is explained by the independent variable.
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Y’all I need help on this question:) so if you could please help me I would appreciate it!!
Answer: \(\frac{1}{27}\)
Step-by-step explanation:
Anything to the third power means it is multiplied by itself 3 times.
--> \((\frac{1}{3})^{3} =(\frac{1}{3})(\frac{1}{3})(\frac{1}{3})=\frac{1}{27}\)
Consumers in a certain state can choose between three long-distance telephone services: GTT, NCJ, and Dash. Aggressive marketing by all three companies results in a continual shift of customers among the three services. Each year, GTT loses 20% of its customers to NCJ and 15% to Dash, NCJ loses 5% of its customers to GTT and 5% to Dash, and Dash loses 25% of its customers to GTT and 15% to NCJ. Assuming that these percentages remain valid over a long period of time, what is each company's expected market share in the long run?
GTT's expected market share:
NCJ's expected market share:
Dash's expected market share:
GTT's expected market share is 45.45%, NCJ's expected market share is 31.82%, and Dash's expected market share is 22.73%. these percentages add up to 100%, as expected.
To find the long-run expected market share for each company, we need to use the concept of steady-state or equilibrium. In the long run, the market share of each company will remain constant if the number of customers gained is equal to the number of customers lost. This means that the rate of change of each company's market share will be zero.
Let's define the market share of each company at any point in time as follows:
GTT's market share = SGTT
NCJ's market share = SNCJ
Dash's market share = SDash
We can write the equations for the rate of change of each company's market share as follows:
dSGTT/dt = -0.2 SGTT + 0.05 SNCJ + 0.25 SDash
dSNCJ/dt = -0.05 SNCJ + 0.05 SGTT + 0.15 SDash
dSDash/dt = -0.15 SDash + 0.25 SGTT + 0.15 SNCJ
Note that the negative coefficients represent the percentage of customers lost by the company, and the positive coefficients represent the percentage of customers gained by the company.
To find the steady-state values of SGTT, SNCJ, and SDash, we need to set the rate of change of each company's market share to zero:
-0.2 SGTT + 0.05 SNCJ + 0.25 SDash = 0
-0.05 SNCJ + 0.05 SGTT + 0.15 SDash = 0
-0.15 SDash + 0.25 SGTT + 0.15 SNCJ = 0
We can solve these equations to get the steady-state values of SGTT, SNCJ, and SDash:
SGTT = 0.4545
SNCJ = 0.3182
SDash = 0.2273
Therefore, the expected long-run market share for each company is as follows:
GTT's expected market share: 45.45%
NCJ's expected market share: 31.82%
Dash's expected market share: 22.73%
Therefore, these percentages add up to 100%, as expected.
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hola soy nuevo y busco compas o amig-a-s os
Answer:
hola
Step-by-step explanation:
como estas?
90% of the tickets sold at an amusement park were discount tickets. If the park sold 30 tickets in all, how many discount tickets did it sell?
well, what's 90% of 30?
\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{90\% of 30}}{\left( \cfrac{90}{100} \right)30}\implies 27\)
Answer:
27 first divide 30 by ten then multiply that by 9
(a) Graph a linear function of your choice. On the same graph, graph a linear function transformed 2 units up and 3 units down.
(b) What was the equation of your linear function in slope-intercept form?
(c) What was the equation of the transformed function in slope-intercept form?
(a) The graph of the linear functions is as attached.
(b) The equation of the linear function in slope-intercept form is; y = x
(c) The equation of the transformed function in slope-intercept form is;
y = x + 2 and y = x - 3
How to interpret the graph of a Linear Function?
Functions are defined as the relationship between sets of values. For example, in the function; y = f(x), for every value of x there exists a set of y values.
x is the independent variable.
y is the dependent variable.
If the linear function is; y = x,
The equation of the transformation in slope-intercept form is given as;
For translation of 2 units up, we have;
y = x + 2
For a translation of 3 units down, we have;
y = x - 3
Thus, the required graph has been attached and the solution is determined.
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Consider a simple alphabet [a, b, c]. in lzw compression, assuming the dictionary gets prepopulated with that alphabet, how would you compress (represent) the string cababa?
For the display of the alphabet " BABA", we shall use encoding.= 1 0 1 0.
This is further explained below.
What is the alphabet?Generally, An alphabet is a standardized collection of fundamental written symbols or graphemes that represent the phonemes of particular spoken languages. These phonemes are called phonemes.
In conclusion, in the LZW compression format, we have the alphabets [A, B, and C].
Therefore, with the assistance of bits 0 and 1, we are able to represent A as the value 0, and B as the value 1.
A = 0, B= 1
Therefore, in order to express BABA, we shall use encoding.= 1 0 1 0.
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Find −1/4(−8.6) . Write your answer as a decimal to the nearest hundredth.
Answer:
2.15
Step-by-step explanation:
I will assume that "−1/4(−8.6)" is telling us to multiply (-8.6) times -(1/4):
(-1/4)*(-8.6)
= (8.6/4)
= 2.15
What are the domain and range of the function f(x) = 3/4 x+5?
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values
what is the unit rate of 588 and 12
Answer:
49
Step-by-step explanation:
588 divided by 12 49
___ = -------
12 divided by 12 1
Hope this helped, click thanks if it did
--- Ensures items requested match item numbers on DA Form 3151-R
--- Loads and secures the ammunition
--- Placards the vehicle
Which of the following tasks does the unit personnel perform when receiving ammunition?
When receiving ammunition, unit personnel perform three tasks: ensuring items requested match item numbers on DA Form 3151-R, loading and securing the ammunition, and placarding the vehicle.
The first task performed by unit personnel when receiving ammunition is to ensure that the items requested match the item numbers on DA Form 3151-R. This form serves as a record of the types and quantities of ammunition being received. By comparing the requested items with the item numbers on the form, personnel ensure accuracy and prevent any discrepancies or errors in the delivery.
The second task involves the loading and securing of the ammunition. Unit personnel are responsible for safely and efficiently loading the ammunition onto the designated vehicle or storage area. This includes following proper handling procedures, using appropriate equipment, and adhering to safety protocols. The ammunition must be securely stored and arranged to prevent shifting or damage during transportation.
The final task is to placard the vehicle. Placarding involves visibly displaying the necessary warning signs or labels on the vehicle that indicate the presence of ammunition. This step is crucial for safety and compliance purposes, as it alerts other personnel and drivers to exercise caution when approaching or handling the vehicle. Clear and prominent placarding helps prevent accidents and ensures that everyone involved is aware of the potential hazards associated with transporting ammunition.
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Simplify the expression: -6X - 4 - X + 9-2 -7x + 3 -7x - 15 0 -6x -15 0 -6x + 3
Answer:
1. (12,−5)⋅(5,6)
2. (−5,8)+(2,4)
3. (12,−5)−(5,6)
Needing help ASAP please
Answer:
im sorry about that i couldn't figure this out try useing a calculator
What is the completely factored form of xy3 – x3y?
xy(y + x)(y – x)
xy(y – x)(y – x)
x y (x minus y) (x squared + x y + y squared)
x y (x minus y) (y squared + x y + x squared)
Answer:
\(xy(y+x)(y-x)\)
Step-by-step explanation:
Given expression:
\(xy^3-x^3y\)
Factor out the common term \(xy\):
\(\implies xy(y^2-x^2)\)
Apply the Difference of Two Squares formula \(a^2-b^2=(a+b)(a-b)\):
\(\implies xy(y+x)(y-x)\)
Answer:
A
Step-by-step explanation:
A test has a mean of 80 with a standard deviation of 4. Which of the following scores is within one standard deviation of the mean?A75B77СBOD90E09
The 89 scores are all within one standard deviation of the mean.
The range of data within one standard deviation of the mean is expressed as the mean plus or minus one standard deviation.
Since the mean in this situation is 80 and the standard deviation is 4, the range that falls within the mean's one standard deviation is as follows:
\(80±4 = (76, 84)\)
Therefore, scores A (75) and B (77) are both below this interval, score C (90) is above this interval, and score D (90) is much higher than this interval. Only score E (89) is within this interval
The 89 scores are all within one standard deviation of the mean.
so E) 89 is the right response.
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Geometry work pls help ASAP
Answer:
3321
Step-by-step explanation:
The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term. A financial administrator believes that the average cost is higher. A study conducted using 350 small liberal arts colleges showed that the average cost per term is $8,745. The population standard deviation is $1,200. Let α
Answer:
D. +3.82
Step-by-step explanation:
The computation of the test static for this test is shown below:
Data provided in the question
\(\bar x\)= $8,745
\(\mu\) = $8,500
\(\sigma\) = $1,200 and n = 350
Now based on the above information, the test static for this test is
\(z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n} } }\)
\(z = \frac{\$8,745 - \$8,500}{\frac{\$1,200}{\sqrt{350} } } \\\)
= 3.82
= +3.82
Hence, the test static for this test is +3.82
We simply applied the above formula so that the correct value could come
And, the same is to be considered
A password consists of 3 digits (0 - 9) followed by two letters (a-z or A-Z; note: 26 letters in the alphabet). i) How many different passwords are possible if repetition of digits and letters is allowed and passwords are not case sensitive (so 123AB is the same as 123aB)? ii) How many different passwords are possible if repetition of digits and letters is not allowed and the passwords are case-sensitive? (s0 123AB is different from 123aB)? b) A 4-student committee is to be randomly selected from a pool of 5 Biology Majors, 10 Math Majors and 5 Music Majors. 1) What is the probability that all 4 randomly selected students were Math Majors? (State your answer as a reduced fraction OR a decimal rounded to 3 places) ii) Suppose now that the 4 student committee needs to have exactly two math majors. How many different pairs of math majors could be chosen.
a. i. There are 27,040,000 different passwords are possible if repetition of digits and letters is allowed and passwords are not case sensitive (so 123AB is the same as 123aB)
ii. There will be 99,532,800 different passwords are possible if repetition of digits and letters is not allowed and the passwords are case-sensitive
b. i. The probability that all 4 randomly selected students were math majors is 0.520
ii. There are 4,725 different pairs of math majors that could be chosen for the committee.
a. i) There are 10 choices for each of the first 3 digits, and 26 choices for each of the last 2 letters. Since the password is not case sensitive, we can choose either uppercase or lowercase letters, so there are 26 + 26 = 52 choices in total for each letter. Therefore, the total number of different passwords is:
10 x 10 x 10 x 52 x 52 = 27,040,000
ii) There are 10 choices for the first digit, 9 choices for the second digit (since we can't repeat the first digit), 8 choices for the third digit (since we can't repeat the first two digits), and 52 choices for the first letter. For the second letter, there are 51 choices left (since we can't repeat the first letter), but we need to distinguish between uppercase and lowercase letters, so there are 52 x 51 = 2,652 choices for the two letters in total. Therefore, the total number of different passwords is:
10 x 9 x 8 x 52 x 2,652 = 99,532,800
b) i) The total number of ways to select a 4-student committee from 20 students is:
20 choose 4 = 4,845
The number of ways to select a committee consisting of 4 math majors is:
10 choose 4 = 2,520
Therefore, the probability that all 4 randomly selected students were math majors is:
2,520 / 4,845 = 0.520
ii) The number of ways to select a 4-student committee with exactly two math majors is:
(10 choose 2) x (10 choose 2) x (15 choose 0) = 4,725
(We choose 2 math majors from 10, and 2 non-math majors from 15, since there are 5 biology majors and 5 music majors to choose from.)
Therefore, there are 4,725 different pairs of math majors that could be chosen for the committee.
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Please help, it’s not college math!!
Answer: The first answer choice
AKA: y = -1.74x + 46.6
Step-by-step explanation:
do the columns of a=[] form a linearly independant set? if the set is dependant, find the dependance relation.
If row-reducing the augmented matrix does not produce any non-zero entries in the right-hand side, then the columns of A are linearly independent.
To determine if the columns of matrix A form a linearly independent set, we need to check if the equation Ax = 0 has only the trivial solution x = 0.
Let's assume the given matrix A is:
A = [a1, a2, a3, ..., an]
If the columns of A are linearly independent, then the equation Ax = 0 has only the trivial solution.
To solve the equation Ax = 0, we set up the augmented matrix [A | 0] and row-reduce it:
[A | 0] =
[a1, a2, a3, ..., an | 0]
Row-reducing the augmented matrix will help us determine if there are any non-trivial solutions to the equation Ax = 0.
If row-reducing the augmented matrix leads to a row of zeros with a non-zero entry in the corresponding row of the right-hand side (0), then the columns of A are linearly dependent, and there exists a non-trivial solution.
If row-reducing the augmented matrix does not produce any non-zero entries in the right-hand side, then the columns of A are linearly independent.
By performing row operations on the augmented matrix [A | 0] and examining the resulting row echelon form, we can determine if the columns of A are linearly dependent or independent and find the dependence relation if they are dependent.
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Need help with questions 1-6 and Part A-D and A-B for questions 3&4
1. The circumference of the wheel is 94. 2 ft
2. The diameter of the tree is 6.37 ft
3. a. 3. 06 radians
b. 1. 36 radians
c. 1. 02 radians
How to determine the valuesThe formula that is used for calculating the circumference of a circle is expressed with the equation;
C = 2πr
Such that the parameters are;
C is the circumference.r is the radiusFrom the information given, we have that;
Radius = diameter/2
Divide the value
radius = 30/2 = 15ft
Circumference = 2× 3.14 × 15
Multiply the values
Circumference = 94. 2 ft
2. 20 = 2πr
Substitute the values
r = 20/6.28
Divide the values
r = 3.18ft
Diameter = 6.37 ft
3. 1 degree = 0. 017 radians
180 = x
cross multiply
x = 3. 06 radians
b. x = 1. 36 radians
c. x = 1. 02 radians
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Find an equation for the plane containing the two (parallel) lines
v1 = (0, 1, −8) + t(6, 7, −5) and v2 = (8, −1, 0) + t(6, 7, −5).
The equation of the plane containing the two parallel lines v₁ = (0, 1, −8) t(6, 7, −5) and v₂ = (8, −1, 0) t(6, 7, −5) is 6x + 6y + 3z = 0.
What are parallel lines?
Parallel lines are coplanar infinite straight lines that do not intersect at any point in geometry. Parallel planes are planes that never meet in the same three-dimensional space. Parallel curves are those that do not touch or intersect and maintain a constant minimum distance.
To find an equation for the plane containing the two parallel lines v₁ = (0, 1, −8) t(6, 7, −5) and v₂ = (8, −1, 0) t(6, 7, −5),
We use the equation of a line: v = v₀ + tv₁
where v₀ and v₁ are points on the line and t is a real number.
Substitute the given points in for v₀ and v₁: v = (0, 1, −8) + t(6, 7, −5)
This equation of the plane is Ax + By + Cz = D, where A, B, C, and D are constants to be determined.
Equate the components:
0x + 1y - 8z = D....(1)
6x + 7y - 5z = D...(2)
Now, we subtract equation (1) from (2) and we get
6x - 0x + 7y - 1y - 5z + 8z = 0
6x + 6y + 3z = 0
Hence, the equation of the plane containing the two parallel lines v₁ = (0, 1, −8) t(6, 7, −5) and v₂ = (8, −1, 0) t(6, 7, −5) is 6x + 6y + 3z = 0.
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35 A bag contains colored tiles. • 3 tiles are red • 6 tiles are green • 3 tiles are blue A tile will be randomly selected from the bag. What is the probability in decimal form that the tile selected will be green? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value. 36 A worker uses 450 inches of steel wire to make 300 springs of the same size. At this rate how many inches of steel wire are needed to make 1 spring? is in in. Discard e T
Answer:
35. there is .25 chance. there are 12 tiles 3 are green so that is 1/4 of the tiles.
36. 1.5 inches for each spring. divide 450 by 300
Help with Pythagorean theorem
Answer:
45
Step-by-step explanation:
(27*27)+(36*36) = 2025
square root 2025 and you get 45
to check 45*45=2025
Factor the quadratic trinomial x^2-7x+12
Answer:
(x-4)(x-3) hope this helps
Step-by-step explanation:
what is the probability of correctly choosing (in any order) 4 numbers that match 4 randomly selected balls from a bucket of 35 balls with the different numbers 1 to 35 on them? please enter your answer as a fraction.
The probability of correctly choosing 4 numbers that match 4 randomly selected balls from a bucket of 35 balls is 1/52360.
To calculate the probability of correctly choosing 4 numbers that match 4 randomly selected balls from a bucket of 35 balls with different numbers from 1 to 35, we need to consider the total number of possible outcomes and the number of favorable outcomes.
Total number of possible outcomes:
Since there are 35 balls in the bucket, the total number of possible outcomes is given by the combination formula:
nCr = n! / [(n-r)! * r!]
In this case, we need to choose 4 balls out of 35, so the total number of possible outcomes is:
35C4 = 35! / [(35-4)! * 4!]
Number of favorable outcomes:
We want to choose 4 numbers that match the 4 randomly selected balls. Since there are 4 balls that need to match, we can consider this as choosing all 4 numbers correctly.
There is only 1 way to choose all 4 numbers correctly.
Therefore, the number of favorable outcomes is 1.
Probability:
The probability of an event is given by the formula:
Probability = Number of favorable outcomes / Total number of possible outcomes
In this case, the probability is:
Probability = 1 / 35C4
Now, let's calculate the probability:
35C4 = 35! / [(35-4)! * 4!]
= (35 * 34 * 33 * 32) / (4 * 3 * 2 * 1)
= 52360
Probability = 1 / 52360
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A museum sells three types of tickets, including those for seniors, adults, and children. On a Tuesday morning, the museum sells 164 tickets. The number of adult tickets sold was three times as many as senior tickets sold, and the number of child tickets sold was 10 more than the number of adult tickets sold. How many of each type of ticket did the museum sell on Tuesday morning?
The number of senior, adults and children tickets sold are 22, 76 and 66 respectively.
The museum sells three types of tickets, including those for seniors, adults and children.
On Tuesday morning the museum sold 164 tickets. Therefore,
Total ticket sold = 164Let
x = number of senior ticket sold.
The number of adult tickets sold was three times as many as senior tickets sold.
Equation for adult ticket sold3xThe number of child tickets sold was 10 more than the number of adult tickets sold. Therefore,
Equation for child ticket sold10 + 3xTotal ticket sold = 3x + 10 + 3x + x
164 = 7x + 10
154 = 7x
x = 154 / 7
x = 22
Therefore,
number of senior ticket sold = 22
number of adult tickets sold = 3 (22) = 66
number of child tickets sold = 10 + 3(22) = 76
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( part A ) I need help with questions 2 thru 4 plsssss
Answer:
2. I) BOC
3. AOF
4. EOC
Explanation:
opposite vertical a gals are angles that are equal to each other and oppsit to each other too all of these are opp to the angle given
I need a written response to solve all 4 steps
a. Find the slope of the line that passes through the points (2,-5) and (-2,3).
b. What are the slope and y-intercept of the equation 2x - 5y = -10?
c. Find the x value so that the line through the points (x,-9) and (0,1) has a slope of -4.
d. Write the equation of a line that passes through the point (-1,5) and has a slope of -7. Your answer should be given in the form y = mx + b.
Answer:
a. -2
b. s = 2 and y = -5
c. (2.5, -9)
d. -7x - 2
Step-by-step explanation:
a. In the image, I have used rise over run, which is -8/4 or -2.
b. slope formula is mx + b = y, where m is slope and b is the y-intercept. In the equation 2x - 5y = -10, 2 is the slope and -5 is the y-intercept.
c. Plug in all given numbers into an equation and the ones you do not have will be in the points you need it to be. Once you graph the equation you will receive (2.5, -9).
d. y = mx + b
5 = (-7)(-1) + b
5 = 7 + b
-2 = b
y = -7x - 2
Help me with these questions (picture) Plsss I will reward brainliest and points
Answer:
1/4 2/3 and 1/12 sfgjikjhskskshrmsl
Answer:
1) Fill in the Blanks
The First Blank is 1/2 because 1/2 + 1/2 = 1
The Second Blank is 3/4 because 3/4 + 1/4 = 1
The Third Blank is 1/3 because 1/3 + 2/3 = 1
2) Find the LCD
The Least Common Denominator (also known as LCD) is 60
To find this, find the number that each of the denominators can multiply to and have the same one together.
3) Find the length of the final scarf
A full scarf has a length of 150cm
We must use the fragment that is 1/2 this size
150 ÷ 2 = 75
We must use the second fragment which is 3/4 150cm
Divide the scarf into 4 pieces
150 ÷ 4 = 37.5
We need 3 1/4 fragments to = 3/4
37.5 x 3 = 112.5
The final fragment is 1/3 the length of the full scarf
We must divide the scarf into 3 sections
150 ÷ 3 = 50
The three lengths we just found were 75cm, 112.5cm, and 50cm
Add all of the lengths up to find the final length of the last scarf
75 + 112.5 + 50 = 237.5cm
The Final scarf length is 237.5cm