Answer:
Step-by-step explanation:
the volume is 150 cm
a latin square design is used to determine the order of treatments that will be used in a within-subjects experiment comparing five treatments labeled a, b, c, d, and e. how many groups of participants will receive treatment e as the first treatment?
There is only one group of participants will receive treatment e as the first treatment.
What is lain square design?
A block with a Latin square design has v Latin characters arranged in a
v x v array (a table with v rows and v columns). Latin square designs are
frequently employed in studies in which individuals are assigned to treatments over a predetermined time period, where it is assumed that time has a significant impact on the experimental response.
The Latin Square Design's name comes from the fact that the treatments can be represented by a square written in Latin letters. Latin letters in the Latin square shape represent the treatment factor levels. The number of treatment levels must match the number of rows and columns.
Hence, There is only one group of participants will receive treatment e as the first treatment.
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Question 11 A square floor has a side length of 7x^(5)y^(6) units. A square tile has a side length of x^(2)y units. How many tiles will it take to cover the floor? Express your answer in simplified form. tiles
The number of tiles it will take to cover the floor are 49x⁶y¹⁰
How many tiles will it take to cover the floor?From the question, we have the following parameters that can be used in our computation:
Side length of floor = 7x⁵y⁶
Side length of tile = x²y
The areas of the floor and the tiles are
Area of floor = (7x⁵y⁶)² = 49x¹⁰y¹²
Area of tile = (x²y)² = x⁴y²
So, the number of tiles is
Tiles = 49x¹⁰y¹²/x⁴y²
Evaluate
Tiles = 49x⁶y¹⁰
Hence, the number of tiles is 49x⁶y¹⁰
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Afrah wants to buy a coat from Japan. It costs ¥7 320.50. She will have to pay shipping of £25.30. She has found a company that will charge her £80 for the coat and shipping combined. The exchange rate is currently £2 : ¥292.82. Should Afrah use the company or buy the coat and pay for shipping herself? Give a mathematical explanation.
Answer:
She should buy the coat and pay for shipping
Step-by-step explanation:
Set up a proportion to express the the 80 pounds to yen.
\(\frac{2}{292.82}\) = \(\frac{80}{x}\)
2 x 40 = 80
292.82 x 40 = 11,712.80
230.50 + 25.30 = 255.8
255.80 < 11,712.80
Helping in the name of Jesus.
What is the area of the figure below?
Answer:
please mark my answer brainliest
Step-by-step explanation:
the answer will be...9in square +25in square +24 in square.....=58 in square.....that is ur answer...find individual areas then sum up
Ms. Roberts studied her students' geography test scores and sleeping habits. She found that students who slept less tended to earn
lower scores on the test. What conclusion should she make?
Step-by-step explanation:
she should tell the students that sleep less to get to their beds early, as the brain needs rest to function properly
Answer:
There is a correlation between test score and amount of sleep. There may or may not be causation. Further studies would have to be done to determine this.
Step-by-step explanation:
There is a correlation between test score and amount of sleep. There may or may not be causation. Further studies would have to be done to determine this.
Select all of the answers that apply. Z-scores are useful because ________________________. Group of answer choices the standard deviation is a natural ruler for comparing values to the mean ZZZZZzzzzzzzzzzz WAKE UP you're almost done. they are applicable to both symmetric and skewed distributions it is a standardized way of saying how unusual an observation is
The correct answers are: 1. Z-scores are useful because they provide a standardized way of indicating how unusual an observation is. 2. The standard deviation is a natural ruler for comparing values to the mean. 3. Z-scores and the standard deviation are applicable to both symmetric and skewed distributions.
These answers accurately describe the benefits of using Z-scores and the standard deviation in statistical analysis. Z-scores allow us to determine how many standard deviations away from the mean a particular observation is, providing a measure of how unusual or extreme that observation is compared to the rest of the data set.
The standard deviation serves as a measure of dispersion, representing the average amount by which data points vary from the mean. It provides a useful reference point for comparing individual values to the mean. Additionally, both Z-scores and the standard deviation can be applied to distributions with varying shapes, including both symmetric and skewed distributions.
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Select all of the answers that apply. Z-scores are useful because it is a standardized way of saying how unusual an observation is ZZZZZzzzzzzzzzzz <snore snore> WAKE UP you're almost done. the standard deviation is a natural ruler for comparing values to the mean they are applicable to both symmetric and skewed distributions.
help please will give brainliest PLEASE
Answer:
I think the answer is b the answer is b
Answer:
The answer is really and surely B
PLEASE HELP IM GONNA FAIL I NEED HELP NOT JUST AN ANSWER
14b x 13 + 12 = ?
I don't know how to begin! Will mark brainliest!
Answer: 2(7bx^13+6)
Step-by-step explanation:
Factor 2 out of 14bx13
14bx13 + 12 = 2 • (7bx13 + 6)
Answer:
182b +12
Step-by-step explanation:
14b × 13 +12
(14×13)b +12
182b +12
PLEASE HELP 50 POINTS
The correct statements for each function are given as follows:
f(x) = x² has an absolute minimum.f(x) = -5x³ decreases for x > 0.f(x) = -2x + 2 decreases for x > 0.How to analyze the features of each function?f(x) = x² has an absolute minimum as it is a concave up quadratic function.
The other two functions are decreasing for x > 0 as both have negative leading coefficient.
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Use Newton's method with initial approximation
x1 = −2
to find x2, the second approximation to the root of the equation
x3 + x + 6 = 0.
Use Newton's method with initial approximation
x1 = −2
to find x2, the second approximation to the root of the equation
x3 + x + 6 = 0.
x2 = -2.0000. In this way, we get x2, the second approximation to the root of the equation using Newton's method with an initial approximation x1 = −2.
Newton's method is one of the numerical methods used to estimate the root of a function.
The following are the steps for using Newton's method:
Let the equation f (x) = 0 be given with an initial guess x1, and let f′(x) be the derivative of f(x).
Determine the next estimate, x2, by using the formula x2 = x1 - f (x1) / f'(x1).
Therefore, the given equation is x³ + x + 6 = 0.
Let us use Newton's method to solve the given equation. We have x1 = -2, which is the initial approximation.
Therefore, f(x) = x³ + x + 6, and f'(x) = 3x² + 1.
To find x2, the second approximation to the root of the equation, we need to substitute the values of f(x), f'(x), and x1 into the formula x2 = x1 - f (x1) / f'(x1).
Substituting the given values in the above equation we get, x2 = x1 - f (x1) / f'(x1) = -2 - (-2³ - 2 + 6) / (3(-2²) + 1) = -2 - (-8 - 2 + 6) / (3(4) + 1) = -2 - (-4) / 13 = -2 + 4 / 13 = -26 / 13
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An online clothing company sells custom sweatshirts. The company charges $2.99 for shipping plus $8.00 for each sweatshirt. Write a linear function rule that models the total cost y (in dollars) for any number of sweatshirts x.
Use pencil and paper. Describe how the linear function rule would change if the shipping charge applied to each sweatshirt.
Answer:
y = 8x + 2.99
y =10.99x if the shipped was charger per shirt.
Step-by-step explanation:
For the first equation, the shipping charge in 2.99 if you buy 1 shirt or 100 shirts. It is an initial or one time fee, but you have to pay $8 for each shirt. I shirt 8, 2 shirts 16, 3 shirts 24 and so on.
In the second equation you are paying 2 and the shipping for each shirt.
That function is when the shipping charge is a one time fee.
If the shipping charge applied to each sweatshirt, then the total cost function would be y = 10.99x
===================================================
Explanation:
x = number of sweatshirts
Since each shirt costs $8, the expression 8x is the total cost of the shirts if we ignore shipping. Add on shipping to get 8x+2.99 as the actual total cost. This wouldn't include taxes or any other potential fees.
Adding on the 2.99 means it's a one time charge. This assumes all of the sweatshirts you buy is able to be shipped in one box.
---------------
If we changed it so that the shipping applied to each shirt (instead of each box), then the 2.99 would become 2.99x
That would mean the total cost becomes y = 8x+2.99x which fully simplifies to y = 10.99x
It says that the cost per shirt is really $10.99
Tyler is simplifying the expression 6−2x+5+4x . Here is his work:
6−2x+5+4x
(6−2)x+(5+4)x
4x+9x
13x
a. Tyler’s work is incorrect. Explain the error he made.
Answer:
6-2x+5+4x=0
4x-2x= -6-5
2x= -11
x= -11/2
x= -5,5
solve the given differential equation. x^2y'' + 11xy' + 25y = 0
The general solution of the differential equation is:
y = Ax^-5 + Bx^-5ln(x)
where A and B are constants determined by the initial or boundary conditions.
To solve the differential equation x^2y'' + 11xy' + 25y = 0, we can assume the solution to be of the form y = x^r, where r is a constant.
Then, we have:
y' = rx^(r-1)
y'' = r(r-1)x^(r-2)
Substituting these into the differential equation, we get:
x^2y'' + 11xy' + 25y = x^2r(r-1)x^(r-2) + 11xrx^(r-1) + 25x^r = 0
Dividing both sides by x^2, we have:
r(r-1) + 11r + 25 = 0
Simplifying, we get:
r^2 + 10r + 25 = (r+5)^2 = 0
Therefore, r = -5.
Thus, the general solution of the differential equation is:
y = Ax^-5 + Bx^-5ln(x)
where A and B are constants determined by the initial or boundary conditions.
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Unit 6 similar triangles homework 2 similar figures
Answer:
1. Angles: <F=<J, <H=<H, <G=<K
Sides: FG/JK, GH/KH, FH/JH
2. 1/4 3. 5/2 4. X=12 5. 122.5 units 6. x=8; y=35 7. X=3 8. x=25 9. x=12 10. x=15 11. X=14 12. x=13
Step-by-step explanation:
2. 4/8 =1/4
3. 10/4=5/2
4. 5x=60(x=12)
5. 7(35)/2: 245/2= 122.5 units
6. x/28= 6/21: 21x=168: x=8
7. 49/14= 9(x+1)/(x+5): 49(x+5)=9(x+1)+14: 49x+245=126x+14: 245-14=126x-49x: 231=77x: x=3
8. 52/91=x+3/2x1: 52(2x-1)= 91(x+3): 104x-52=91x+273: 13x=325: x=25
9. 5x-3/3x+2= 60/40: 60(3x+2)= 40(5x-3): 200x-120=180x+120: 200=180x+120: 20x=240: x=12
10. 168x-280=160x-60: 8x-120: x=15
11. 12/x+1= 32/3x-2: 12(3x-2)= 32(x+1): 36x-24=32x+32: 4x=56: x=14
12. x+4/2x-7= 51/57: 57(x+4)= 51(2x-7): 57x +228=102x-357: -45x = -585: x=13
solve the inequality.
-c > -19
Answer:
The answer is -18 and above (that's negative, basically -17,-16, -15,-14,-13,-12, -11, -10, -9, -8, -7, -6, -5,-4, -3, -2, -1).
1. I like buying minutes of music to download on my MP3 player. The music company
charges a monthly charge of $4.35 per month and charges $.15 per song. How many
songs can I download a month if I only wish to spend $25.00?
Convert the equation to standard form by completing the square on x and y. Then graph the ellipse and give the location of its foci. 16x + 25y? - 96x + 50y - 231 = 0 The standard form of the equation is (Type an equation. Simplify your answer)
The standard form of the equation is: 155x - (11625/80)y = 1831.
To convert the given equation to standard form by completing the square on both x and y, we need to rearrange the terms and group the x-terms together and the y-terms together. Then we can complete the square for each variable separately. Let's proceed with the equation:
16x + 25y - 96x + 50y - 231 = 0
Combining like terms:
(-80x + 75y) - 231 = 0
Now, let's complete the square for the x-terms:
-80(x - (75/80)y) = 231
We need to find a value, c, to add to both sides of the equation to complete the square. The value of c can be calculated as (b/2a)^2, where b is the coefficient of x, and a is the coefficient of (x - (75/80)y).
In this case, b = -80, and a = -80/80 = -1. Plugging in these values:
c = (-80/2(-1))^2
c = 40^2
c = 1600
Adding c to both sides of the equation:
-80(x - (75/80)y) + 1600 = 231 + 1600
-80(x - (75/80)y) + 1600 = 1831
Now, let's complete the square for the y-terms:
75(y + (80/75)(x - (75/80)y)) = 1831
We need to find a value, d, to add to both sides of the equation to complete the square. The value of d can be calculated as (b/2a)^2, where b is the coefficient of y, and a is the coefficient of (y + (80/75)(x - (75/80)y)).
In this case, b = 75, and a = 75/75 = 1. Plugging in these values:
d = (75/2(1))^2
d = 37.5^2
d = 1406.25
Adding d to both sides of the equation:
75(y + (80/75)(x - (75/80)y)) + 1406.25 = 1831 + 1406.25
75(y + (80/75)(x - (75/80)y)) + 1406.25 = 3237.25
Now, we can simplify the equation:
75(y + (80/75)x - (75/64)y) + 1406.25 = 3237.25
75(1 + 80/75)(x - (75/80)y) + 1406.25 = 3237.25
75(155/75)(x - (75/80)y) + 1406.25 = 3237.25
155(x - (75/80)y) + 1406.25 = 3237.25
155x - (11625/80)y + 1406.25 = 3237.25
Finally, we can write the equation in standard form:
155x - (11625/80)y = 3237.25 - 1406.25
155x - (11625/80)y = 1831
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Hello I need help with this math problem
Answer:
triangle = 190 degrees 130 plus 30 is 160
missing triangle side is 20
180 minus 20 is 160
Can someone help me with number 13 I need the equation fast
The expression is given as
\((-2+7i)(-1-6i)(6+3i)\)Solve and simplify the expression by opening the brackets
\((2+12i-7i-42i^2)(6+3i)\)\((2+5i+42)(6+3i)=(5i+44)(6+3i)_{}\)\(30i+15i^2+264+132i\)\(162i+264-15=162i+249\)Hence the answer is
\(162i+249\)WILL GIVE BRAINLIEST AND 25 POINTS! Which of the following statements are true? Check all that apply. A. If any row of a square matrix is zero, its determinant is zero. B. If all numbers in a matrix are equal, its determinant is zero. C. The determinant of any identity matrix is zero. D. The determinant of a matrix with all positive numbers is always positive. E. The determinant of any zero matrix is zero.
Answer:
Option A, B and E
Step-by-step explanation:
Determinant = ad-bc
Let's look at the picture and solve all
Option A)
If the row ( c and d ) is zero, the determinant will be zero
=> a(0)-b(0)
=> 0-0
=> 0 (So, True)
Option B)
If a = b = c = d (Let's say 1), the determinant will be
=> (1)(1)-(1)(1)
=> 1-1
=> 0 (So, True)
Option C)
An Identity matrix is
=> \(\left[\begin{array}{ccc}1&0\\0&1\end{array}\right]\)
So , it's determinant will be
=> (1)(1)-(0)(0)
=> 1-0
=> 1 (So, False)
Option D)
The determinant with matrix will all positive numbers can be negative as well as positive. This is not necessary that it would be positive. (So, False)
Option E)
A zero matrix is
=> \(\left[\begin{array}{ccc}0&0\\0&0\end{array}\right]\)
So, it's determinant is:
=> (0)(0)-(0)(0)
=> 0-0
=> 0 (So,True)
Answer: A B E
A. If any row of a square matrix is zero, its determinant is zero.
B. If all numbers in a matrix are equal, its determinant is zero.
E. The determinant of any zero matrix is zero
Step-by-step explanation:
edge assignment
Suppose the math club is going on a field trip. Members will be riding in vans that will hold 7 people each including the
driver. More than 28 people will be going on the field trip. Do not put spaces in your answers.
Write an inequality to model this situation using V as the variable.
Solve the inequality.
What is the least number of vans needed to make the trip?
Since more than 4 vans will be required in total, at least 4 vans should be reserved.
What is inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to one another. In mathematics, inequalities specify the relationship between two non-equal values. Equal does not imply inequality. The "not equal symbol ()" is typically used to indicate that two values are not equal. The expression 5x 4 > 2x + 3 resembles an equation, but the equals sign has been replaced by an arrowhead. It is an illustration of inequality. This shows that the left part, 5x 4, is bigger than the right part, 2x + 3.
Here,
Since the total number of people is at least 28, then the total number of people must be 28 or more, so
7v≥28
v≥4
The total number of vans needed will be more than 4 that is at least 4 vans should be booked.
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50.3 - 5.6 ÷ 0.7 × 1.6 of 3.5
Answer:
5.5 is the correct answer:)
Step-by-step explanation:
Hope this helped!!!
melissa is beginning an investigation of an older apple computer. she wants to determine when the system volumes were created. what is the best way for her to approach discovering this data?
To determine the creation date of system volumes on an older Apple computer, and the most effective methods for obtaining this information, such as checking file metadata or using file recovery tools.
How to determine the creation date of system volumes?The best way for Melissa to approach discovering the creation date of the system volumes on an older Apple computer would be to check the file metadata.
File metadata includes information about when a file was created, modified, or accessed, and can be accessed by;
right-clicking on the file and selecting "Get Info" or by using the Terminal command "ls -l" in the directory where the system volumes are located.
Alternatively, Melissa could use a file recovery tool such as Disk Drill or EaseUS Data Recovery to scan the hard drive for deleted files that may contain information about the creation date of the system volumes.
It is important to note that using file recovery tools can potentially overwrite or corrupt existing data, so caution should be exercised when using these tools.
If Melissa is unable to find the creation date of the system volumes through these methods, she could also try contacting Apple support or consulting online forums for assistance
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(-7,4),(-8,3)(-7,7),(-20,8),(5,9),(3,1),(2,6) state whether each set of ordered pairs represents a function
Answer:
This relation is NOT a function.
Step-by-step explanation:
Just check the x's. If you have a repeat (the first x is -7, but so is the x on the third point)
If the x's repeat it has to be exactly the same point (same y both times)
If the x's repeat and have different y's, then the relation is NOT a function.
Evaluate the expression when a= 5 and x= -2 -a+6x Thankyou ! !
Answer:
\(\boxed{-17}\)
Step-by-step explanation:
Hey there!
If x is -2 and a is 5 then we can plug those in,-a + 6x.
-(5) + 6(-2)
-5 + -12
= -17
Hope this helps :)
PLEASE PLEASE PLEASE HELP ME!
Answer: 50 Minutes = 309 gal
Step-by-step explanation: Every 10 minutes the amount of water goes up by 18, so after 50 minutes the water would be equivalent to 309 gallons.
Answer:
\(y=1.8x+219\)
309 gallons
Step-by-step explanation:
So to find the linear equation, we can use the data from the table.
First, use the data from the table to find the slope. Pick any two points. I'm going to use (10,237) and (20,255).
Let (10,237) be x₁ and y₁ and let (20,255) be x₂ and y₂.
The formula for slope is given by:
\(m=\frac{y_2-y_1}{x_2-x_1}\)
Substitute:
\(m=\frac{255-237}{20-10}\)
Simplify:
\(m=18/10=1.8\)
Thus, the slope is 1.8. This means that 1.8 gallons of water flow into the tank every minute.
Now, let's find the slope-intercept. To do this, we can use the point-slope form. The point-slope form is:
\(y-y_1=m(x-x_1)\)
Let's use (10,237) for consistency. Plug in 237 for y₁ and 10 for x₁. Also use 1.8 for m. Thus:
\(y-237=1.8(x-10)\)
Distribute:
\(y-237=1.8x-18\)
Add 237 to both sides:
\(y=1.8x+219\)
What this means is that there is initially 219 gallons of water in the tank already. Every minute, 1.8 gallons is added further.
And that's our linear equation :)
So, to find the amount of gallons after 50 minutes, plug in 50 for x and solve:
\(y=1.8(50)+219\\y=90+219=309\)
After 50 minutes, there will be 309 gallons of water.
which of the following is a heuristic commonly used in problem solving? group of answer choices regression analysis local minimization means-end analysis local maximization functional fixedness
The commonly used technique in problem solving is means-end analysis
One typical heuristic is to define subproblems or subgoals. Means-ends analysis, which entails determining how to close the gap between a goal and the actual situation, is another frequently employed heuristic. You can divide a problem into smaller problems and deal with each one separately by using means-ends analysis.
Heuristic problem-solving entails what?
A problem-solving heuristic is a non-formal, speculative process that, in certain circumstances, produces a solution but not in others. The strategy can be either more or less successful than employing an algorithm because the results of applying a heuristic are unpredictable.
So,therefore the means-end analysis is commonly used technique in problem solving
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I need help with a word problem! I need to find the probability.A gambler places a bet on a horse race. To win, he must pick the top three finishers in order. Seven horses of equal ability are entered in the race. Assuming the horses finish in a random order, what is the probability that gambler will win his bet?
ANSWER
1/35
EXPLANATION
First we have to find how many ways you can pick 3 horses out of 7. For the first place you have 7 horses that can be there. For the second place, you have 6 horses (you already placed one horse) and for the third place you have 5 horses. The number of ways to pick 3 horses - in order - from 7 horses is:
\(7\times6\times5=210\)Now we want to know the permutations for 3 horses. Once you have picked one combination out of the 210 combinations of 3 horses, there are many ways to arrange them. This is:
\(3!=3\times2\times1=6\)Let 'A' be the event where the gambler wins his bet:
\(P(A)=\frac{6}{210}\)We can simplify this fraction:
\(P(A)=\frac{1}{35}\)
Which expression is equivalent to 9 (45) using the distributive property?
9 x 40+9x5
9 x 40+5
9x4+9x5
9x5+9x4
Answer:
360+45=405
360+5=365
36
Answer: 9 x 40+5
Step-by-step explanation:
9x 40+5
9x 45
in three flips of an unfair coin the probability of getting three heads is the same as the probability of getting exactly two tails. what is the ratio of the probability of flipping a tail to the probability of flipping a head?
The ratio of the probability of flipping a tail to the probability of flipping a head when the probability of getting three heads is the same as the probability of getting exactly two tails in three flips is 1/3.
How to find the ratio of probability of flipping a tail to probability of flipping a head?Let p be the probability of flipping a head and q be the probability of flipping a tail.
The probability of getting three heads in three flips is \((p)^3.\)
The probability of getting exactly two tails in three flips is 3pq².
Given that these probabilities are equal, we have:
\((p)^3\)= 3pq²
Simplifying this equation gives:
p = 3q
Dividing both sides by q gives:
p/q = 3
Therefore, the ratio of the probability of flipping a tail to the probability of flipping a head is 1/3.
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