Answer:
3 × ((6 + 2) /2) evaluates to 12
Step-by-step explanation:
Hey!
================================================================
PEMDAS-
P- Parentheses
E- Exponents
M- Multiplication
D- Division
A- Addition
S- Subtraction
------------------------------------------------------------------------------------------------------------
a. (3 × 6) + 2 /2
⇒ 18 + 2/2
⇒ 18 + 1
⇒ 19
------------------------------------------------------------------------------------------------------------
b. (3 × 6 + 2) /2
⇒ (18 + 2) / 2
⇒ 20/2
⇒ 10
------------------------------------------------------------------------------------------------------------
c. 3 × ((6 + 2) /2)
⇒ 3 × (8/2)
⇒ 3 × 4
⇒ 12
------------------------------------------------------------------------------------------------------------
d. 3 × 6 + 2 /2
⇒ 18 + 2/2
⇒ 18 + 1
⇒ 19
--------------------------------------------------------------------------------------------------------------
3 × ((6 + 2) /2) evaluates to 12
==================================================================
Hope I Helped, Feel free to ask any questions to clarify :)
Have a great day!
More Love, More Peace, Less Hate.
-Aadi x
Help please full answer!!
The temperature change in a chemistry experiment was –2 C every 30 min. The initial temperature was 6 C. What was the temperature after 4 h?
Answer:
4 hours/30 min=12
-2*12=-24
6-24=-18
-18°C
Step-by-step explanation:
help me with this please
Answer:
XY=47
Step-by-step explanation:
1. Set up an equation for the perimeter of the rectangle. 2(5y-3)+2(4y)=174.
2. Simplify.
apply the Distributive Property. 2(5y-3)+2(4y)=10y-6+8ycombine like terms. 10y-6+8y=18y-63. Therefore, 18y-6=174.
4. +6 to both sides of the equation. the equation becomes 18y=180.
5. divide 18 to both sides of the equation. y=10.
6. the length of side XY=5y-3. substitute the value of y into the expression: 5(10)-3=50-3=47.
Good morning guys, I need help with a math problem ..8x+3y-2x-4y-6x
Answer:
8x+3y-2x-4y-6x = -y
Step-by-step explanation:
8x+3y-2x-4y-6x = ?
combine like terms:
(8x - 2x - 6x) + (3y - 4y) = ?
The x total is 0 and the y total is -1y
Answer:
-1y
Step-by-step explanation:
8x-2x-6x=0
3y-4y=-1y
That means the solution I think is -1y.
I say this because the X gets completely cancelled, and then the only thing left is -1y. If the X still had a number in front of it, it would then be like (This Is An Example: 2x = -1y) That's what it would look like if the X wasn't completely cancelled out. Have a good day. And if you see any fault in my answer please let me know so I can get better with problems like these. Thanks.
At a coffee shop, the first 100 customers'
orders were as follows.
Small
Hot
Cold
5
8
Medium
48
12
Large
22
сл
5
If we choose a customer at random, what
is the probability that his or her drink will
be cold?
[? ]%
Enter
The probability that a randomly chosen customer's drink will be cold is 0.08 or 8%.
To calculate the probability that a randomly chosen customer's drink will be cold, we need to determine the number of customers who ordered a cold drink and divide it by the total number of customers.
From the given data, we can see that there were 8 customers who ordered a cold drink. The total number of customers is 100.
Therefore, the probability that a randomly chosen customer's drink will be cold is:
P(cold) = Number of customers who ordered a cold drink / Total number of customers
P(cold) = 8 / 100
Simplifying the fraction:
P(cold) = 0.08
So, the probability that a randomly chosen customer's drink will be cold is 0.08 or 8%.
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The probability that a randomly chosen customer's drink will be cold is 25/100.
To calculate the probability that a randomly chosen customer's drink will be cold, we need to determine the number of cold drinks out of the total number of customers.
From the given data, we see that there were 25 cold drinks out of 100 total customers.
Therefore, the probability is calculated as the number of cold drinks (8) divided by the total number of customers (100), which results in a probability of 25/100.
Hence, the probability that a randomly chosen customer's drink will be cold is 25/100.
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Choose ALL the lines PARALLEL to the following line: y = 2/9x - 7
y = 9/2x-12
y = 2/9x + 8
-2y = 9x + 8
9y = 2x -18
Answer: y = 2/9x + 8 and -2y = 9x + 8
Step-by-step explanation: Hope this help :D
Parallel lines have the same slope so y = 2/9x + 8 and 9y = 2x -18 will be parallel to the line y = 2/9x - 7 so option (B) and (D) will be correct.
What are parallel lines?Two lines in the same plane that are equally spaced apart and never cross each other are said two lines in the same plane that are equally spaced apart and never cross each other to be parallel lines.
Parallel lines are those lines in which slopes are the same and the distance between them remains constant.
The equation of a linear line is given by
y = mx + x where m is slope
So,
y = 2/9x - 7 have slope as 2/9
Now since parallel lines have the slope same so all lines whose slope matches with 2/9 will be parallel to this.
So,
y = 2/9x + 8 has slope of 2/9
9y = 2x -18 ⇒ y = 2/9 x - 2 has slope of 2/9
Hence "y = 2/9x + 8 and 9y = 2x -18 will be parallel to the line y = 2/9x - 7"
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Let A = {z, b, c, d, e) and Ri = {(z, z), (b, b), (z, b), (b, z), (z, c), (d, d), (e, e)} a ,(c relation on A. a) Find a symmetric relation R2 on A which contains all pairs of R, and such that R2 # AXA b) Find an equivalence relation R3 on A which contains all pairs of R,
a) For this question, we can identify all the symmetric relations from the pairs of R by adding in the pairs that would make the relation symmetric. These pairs are of the form (y, x) where (x, y) is already in the relation. Thus, a symmetric relation R2 on A that contains all pairs of R, and such that R2 ≠ A×A is {(z, b), (b, z), (z, c), (c, z), (d, d), (e, e)}. b) In order to find an equivalence relation R3 on A which contains all pairs of R, we have to do the following: Check for all pairs in R whether they have the property that xRy and yRx.
If a pair (x, y) is in R and (y, x) is also in R, then we include the pair (x, y) in our equivalence relation. We do this until we have found all pairs that satisfy this condition. Thus, an equivalence relation R3 on A which contains all pairs of R is {(z, z), (b, b), (z, b), (b, z), (d, d), (e, e)}.
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i need help with this questionn
implement an iterator class called scaleiterator that scales elements in an iterable iterable by a number scale.
The ScaleIterator class iterates over an iterable, scaling its elements by a given scale factor.
To implement the ScaleIterator class, we can define a custom iterator that takes an iterable and a scale factor as input. The iterator will then iterate over the elements of the iterable and scale each element by multiplying it with the scale factor.
Here's an example implementation in Python:
class ScaleIterator:
def __init__(self, iterable, scale):
self.iterable = iterable
self.scale = scale
def __iter__(self):
return self
def __next__(self):
element = next(self.iterable)
scaled_element = element * self.scale
return scaled_element
The ScaleIterator class has an __init__ method that initializes the iterator with the given iterable and scale factor. It also implements the __iter__ and __next__ methods to make the class iterable. Each time __next__ is called, it retrieves the next element from the underlying iterable, scales it by multiplying with the scale factor, and returns the scaled element.
Using this ScaleIterator, you can iterate over any iterable and obtain scaled elements by specifying the desired scale factor.
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I need help with this problem
Answer:
3
Step-by-step explanation:
4x-6=x+3
3x=9
x=3
substitute the two equations in for each other because they both equal x.
2. If m arc VW - 62" and marc YZ -25°, then what is the
measure of
Given the differential equation:
dy/dx -xy = -2 (x2 ex – y2)
with the initial condition y(0) = 1, find the values of y corresponding to the values of x0+0.2 and x0+0.4 correct to four decimal places using Heun's method.
The value of y corresponding to x₀ + 0.2 is approximately 0.6701 and the value of y corresponding to x₀ + 0.4 is approximately 0.5650 using Heun's method .
The differential equation using Heun's method, we will approximate the values of y at x₀ + 0.2 and x₀ + 0.4 based on the initial condition y(0) = 1.
Heun's method involves using the slope at two points to estimate the next point. The algorithm for Heun's method is as follows:
Given the initial condition y(x₀) = y₀, let h be the step size.
Set x = x₀ and y = y₀.
Compute k₁ = f(x, y) = -xy + 2(x² × eˣ - y²), where f(x, y) is the given differential equation.
Compute k₂ = f(x + h, y + hk₁).
Update y = y + (h/2) × (k₁ + k₂).
Update x = x + h.
Using the given initial condition y(0) = 1, we'll apply Heun's method to find the values of y at x₀ + 0.2 and x₀ + 0.4.
Initial condition
x₀ = 0
y₀ = 1
Step size
h = 0.2 (given)
Iterating through the steps until we reach x = 0.4:
x = 0, y = 1
k₁ = -0 × 1 + 2(0² × e⁰ - 1²) = -1
k₂ = f(0.2, 1 + 0.2×(-1)) = f(0.2, 0.8) = -0.405664
y = 1 + (0.2/2) × (-1 + (-0.405664)) = 0.7978688
x = 0.2, y = 0.7978688
k₁ = -0.2 × 0.7978688 + 2(0.2² × [tex]e^{0.2}[/tex] - 0.7978688²)
= -0.1777845
k₂ = f(0.4, 0.7978688 + 0.2×(-0.1777845))
= f(0.4, 0.7633118)
= -0.2922767
y = 0.7978688 + (0.2/2) × (-0.1777845 + (-0.2922767))
= 0.6701055
x = 0.4, y = 0.6701055
k₁ = -0.4 × 0.6701055 + 2(0.4² × [tex]e^{0.4}[/tex] - 0.6701055²)
= -0.1027563
k₂ = f(0.6, 0.6701055 + 0.2×(-0.1027563))
= f(0.6, 0.6495543)
= -0.2228019
y = 0.6701055 + (0.2/2) × (-0.1027563 + (-0.2228019))
= 0.5649933
Therefore, the value of y corresponding to x₀ + 0.2 is approximately 0.6701 (correct to four decimal places) and the value of y corresponding to x₀ + 0.4 is approximately 0.5650 (correct to four decimal places).
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help pleaseeeeeeeeeeeeee
Answer:
with what
Step-by-step explanation:
Label the following statements as being true or false. For the following, V and W are vector spaces with ordered (finite) bases a and B, respectively, and T:V + W is linear. A and B are matrices. (a) ([T]2)-1 = [T-] (b) T is invertible if and only if T is one-to-one and onto. (c) T= LA, where A = [T].. (d) M2x3(F) is isomorphic to FS. (e) P.(F) is isomorphic to Pm(F) if and only if n = m. (f) AB = I implies that A and B are invertible. (g) (A-1)-1 = A. (h) A is invertible if and only if L, is invertible. (i) A must be square in order to possess an inverse.
The following are the correct answers for the statement V and W are vector spaces with ordered (finite) bases a and B, respectively, and T:V + W is linear. A and B are matrices:
(a) False. ([T]2)-1 refers to the inverse of the square of the matrix representing the linear transformation T, while [T-] refers to the inverse of the matrix representing the linear transformation T itself. These two are not necessarily equal.
(b) True. T is invertible if and only if it is both one-to-one (injective) and onto (surjective). This property ensures that there exists a unique inverse transformation that undoes the effects of T.
(c) False. T is a linear transformation, and A is the matrix representation of T. So, T = [T], where A = [T] is the matrix representation.
(d) False. M2x3(F) represents the set of 2x3 matrices over the field F, while FS represents the set of column vectors of finite length over the field F. These two vector spaces are not isomorphic since they have different dimensions.
(e) True. P.(F) represents the set of polynomials over the field F, and Pm(F) represents the set of polynomials of degree at most m over the field F. These two vector spaces are isomorphic if and only if the degree of the polynomials is equal (n = m).
(f) False. AB = I implies that A and B are left and right inverses of each other, respectively, but it does not necessarily imply that they are invertible. Invertibility is determined by the existence of an inverse matrix, which is not guaranteed by AB = I alone.
(g) True. The inverse of the inverse of a matrix is the matrix itself.
(h) True. If A is invertible, then its matrix representation [A] is invertible as well. Similarly, if [A] is invertible, then A is invertible.
(i) True. In order to possess an inverse, a matrix must be square (i.e., have the same number of rows and columns). Non-square matrices do not have inverses.
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36. Given x is the score in the distribution. The interval of scores containing within one standard deviation from the mean is a < x < b. solve for a.
37. Given x is the score in the distribution. The interval of scores containing within one standard deviation from the mean is a < x < b. solve for b.
Given x is the score in the distribution. The interval of scores containing within one standard deviation from the mean is a < x < b. The solution for a and b are; a = x - SD and b = x + SD.
Let's see how we can solve these problems using the standard deviation and distribution.
36. To solve for a:
One standard deviation from the mean in a normal distribution includes about 68 percent of the scores.
Therefore, we know that:
P(mean - SD < x < mean + SD) = 68%. Where, SD = standard deviation of the distribution.
Therefore, to find a, we need to subtract SD from the mean.
So, a = mean - SD.
Distribution:
a < x < b
P(mean - SD < x < mean + SD) = 68%
Mean is x in this case; so:
P(x - SD < x < x + SD) = 68%
Now, solve for a by subtracting SD from x:
x - SD = a = x - SD
37). To solve for b.
From the previous problem,
we have: P(x - SD < x < x + SD) = 68%
To find b, we need to add SD to x
So, b = x + SD
Substitute the values of SD and x to get the value of b.
Distribution: a < x < b
P(mean - SD < x < mean + SD) = 68%
P(x - SD < x < x + SD) = 68%
So,
a = x - SD and b = x + SD.
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36. The value of a is µ - σ for the interval of scores containing within one standard deviation from the mean is a < x < b.
37. The value of b is µ + σ for the interval of scores containing within one standard deviation from the mean is a < x < b.
Explanation:
Given that x is the score in the distribution. The interval of scores containing within one standard deviation from the mean is a < x < b. We need to find the values of a and b.
Formula used:
µ ± σ,
where µ = mean
σ = standard deviation.
Using this formula we can write:
µ - σ < x < µ + σ
36.
Given that x is the score in the distribution.
The interval of scores containing within one standard deviation from the mean is a < x < b.
Substitute the above formula in the given expression: µ - σ < x
a = µ - σ
µ - σ = a + σ
a = µ - σ
Thus, the value of a is µ - σ.
37.
Given that x is the score in the distribution.
The interval of scores containing within one standard deviation from the mean is a < x < b.
solve for b.
Substitute the above formula in the given expression:
xa < µ + σ
b = µ + σ
µ + σ = b - σ
b = µ + σ
Thus, the value of b is µ + σ.
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The balanced scale represents the equation: 3x + 1 = x + 3
If one x block is subtracted from the right side and three numbered blocks are subtracted from the left side. What process will
balance the scale?
subtract one x block from the left side and subtract three numbered blocks
from the left side
subtract one x block from the left side and subtract three numbered blocks
from the right side
subtract one x block from the right side and subtract'three numbered
blocks from the left side
subtract one x block from the right side and subtract three numbered
blocks from the right side
Answer:
1 block is required in the process to balance the scale
Step-by-step explanation:
In order to get the process that will balance the scale, we need to solve the given expression for x as shown;
3x + 1 = x+ 3
Subtract x from both sides
3x+1-x = x+3 - x
3x - x + 1 = 3
2x + 1 = 3
Subtract 1 from both sides
2x + 1 - 1 = 3 -1
2x = 2
Divide both sides by 2
2x/2 = 2/2
x = 1
Hence 1 block is required in the process to balance the scale
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!
Answer:
All integers are rational numbers
Step-by-step explanation:
Since any integer can be written as the ratio of two integers, all integers are rational numbers. Remember that all the counting numbers and all the whole numbers are also integers, and so they, too, are rational.
Answer:
True
Step-by-step explanation:
An integer is a number including positive and negatives with 0 that are whole numbers and are not fractions or decimals
( 74 GUIDED Name:
PRACTICE Using Dot Plots to Make Inferences
1.
Joseph asks 10 of his friends how many baseball trading cards each friend has.
The data is shown in the dot plot. How many friends have more than five cards?
1
2
3
8
9
10
4 5 6 7
baseball trading cards
11
A. 3
C. 10
B. 5
Answer:
2 friends have more than 5 cards
Step-by-step explanation:
Incomplete question;
I will answer this question with the attached dot plot
The horizontal axis represents the friends, the vertical represents the number of baseball trading cards and the dots represent the frequency
So, we have:
[tex]Friend\ 1 = 2[/tex]
[tex]Friend\ 2 = 3[/tex]
[tex]Friend\ 3 = 7[/tex]
[tex]Friend\ 4 = 4[/tex]
[tex]Friend\ 5 = 2[/tex]
[tex]Friend\ 6 = 6[/tex]
[tex]Friend\ 7 = 2[/tex]
[tex]Friend\ 8 = 5[/tex]
[tex]Friend\ 9 = 1[/tex]
[tex]Friend\ 0 = 0[/tex]
The friends that has more than 5 are:
[tex]Friend\ 3 = 7[/tex]
[tex]Friend\ 6 = 6[/tex]
Hence, 2 friends have more than 5 cards
Can anyone help find x?
Answer:
x = 112°
Step-by-step explanation:
To find the value of x, you need to understand the properties of vertical and supplementary angles and know that the sum of angles inside a triangle is 180°.
Furaha pushes his rectangle next to Rahma's rectangle to form a new, longer rectangle. Draw an area model to show the new rectangle. Label the side lengths.
Answer:
See attachment
Step-by-step explanation:
Given
See attachment for complete question
Required
Determine the new model
From the question;
Furaha's model is: 6 by 4
Rahma's model is: 7 by 4
When Furaha's rectangle is pushed next to Rahma's, the new model becomes: (6 + 7) by 4
i.e. 13 by 4
See attachment 2
Which of the following statements about the polynomial function F(x)=x^3+2x^2-1 is true
The true statement about the polynomial function is (d) 0 relative minimum
How to determine the true statement about the polynomial functionFrom the question, we have the following parameters that can be used in our computation:
f(x) = x³ + 2x² - 1
Differentiate and set the function o 0
So, we have
3x² + 4x = 0
Factor the expression
So, we have
x(3x + 4) = 0
Next, we have
x = 0 or x = -4/3
So, we have
f(0) = (0)³ + 2(0)² - 1 = -1
f(-4/3) = (-4/3)³ + 2(-4/3)² - 1 = 0.2
This means that it has a relative minimum at x = 0
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how to find what is the value of the correlation coefficient?
The value of the correlation coefficient is represented by the symbol "r." It is a statistical measure that determines the degree of correlation or association between two variables.
There are various methods of calculating r, but the most common one is the Pearson correlation coefficient. To calculate the Pearson correlation coefficient, follow these steps:
Step 1: Collect the data for the two variables you want to determine the correlation for. The data should be continuous and normally distributed.
Step 2: Calculate the mean of both variables.
Step 3: Calculate the standard deviation of both variables.
Step 4: Calculate the covariance of the two variables using the formula below: `Cov(X, Y) = Σ [(Xi - Xmean) * (Yi - Ymean)] / (n-1)
`Step 5: Calculate the correlation coefficient using the formula below: `r = Cov(X, Y) / (SD(X) * SD(Y))` where r is the correlation coefficient, Cov is the covariance, SD is the standard deviation, X is the first variable, Y is the second variable, Xi and Yi are the individual values of X and Y, X mean and Y mean are the means of X and Y, and n is the number of observations. The resulting value of r ranges from -1 to +1. A value of -1 indicates a perfect negative correlation, a value of 0 indicates no correlation and a value of +1 indicates a perfect positive correlation.
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Plz help!!!! Geometry
The little lines inside the two angles mean they are the same.
The 3 inside angles of a triangle equal 180 degrees.
One angle is 146 , so the other two need to equal 180-146 = 34 total.
34/ 2 = 17
Both angle 1 and angle 2 are 17 degrees each.
17, 17
Step-by-step explanation:
assuming both 1 and 2 are congruent and the total amount of angles should add up to 180* we can subtract 180(total) - 146(given) to get 34(angle 1+2) and and divide by 2 since both 1 and 2 are congruent they are the exact same angle
Plz help with these.
Answer:
5. [tex]a ( x + y^{2} + z )[/tex]
6. [tex]2a ( x + y + z)[/tex]
7. [tex]4 ( x +4y)[/tex]
8. [tex]-5 ( x + y )[/tex]
9. [tex]7a ( a + b)[/tex]
10. [tex]-2 ( x + 2y + 3z)[/tex]
11. [tex]bx ( a + y)[/tex]
12. [tex]-x (x^{2} + x + 1)[/tex]
this took long but i hope the answers are correct :)
Please helpppp! For the function f(x) = -4x - 5, what are the outputs for the inputs 4, 1, 3, and 11?
A. 11; -9; -17; -49
B. 11; -1; 7; 39
C. -21; -9; -17; -45
D. -21; -1; 7; 39
f(x)=-4x-5
x=4, 1, 3, 11
f(4)=-4(4)-5=-16-5=-21
f(1)=-4-5=-9
f(3)=-12-5=-17
f(11)=-44-5=-49
-21, -9, -17, -49
An earthquake measured 4.5 on richter scale how many times less
powerful is it than a 6.3 earthquake
A 4.5 magnitude earthquake is approximately 316.22776 times less powerful than a 6.3 magnitude earthquake.
The Richter scale is a logarithmic scale that measures the magnitude or strength of earthquakes. Each whole number increase on the Richter scale represents a tenfold increase in the amplitude of seismic waves and approximately 31.6 times more energy released. Therefore, to compare the power or strength of two earthquakes on the Richter scale, we can use the formula:
Ratio =[tex]10^((Magnitude2 - Magnitude1) * 1.5)[/tex]
In this case, we want to compare a 4.5 magnitude earthquake to a 6.3 magnitude earthquake. Plugging the values into the formula, we get:
Ratio = 1[tex]0^((6.3 - 4.5) * 1.5) ≈ 316.22776[/tex]
This means that the 4.5 magnitude earthquake is approximately 316.22776 times less powerful than the 6.3 magnitude earthquake.
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the decimal $0.76$ is equal to the fraction $\frac{4b 19}{6b 11}$, where $b$ is a positive integer. what is the value of $b$?
The value of b is 3. By equating the decimal and the fraction, we solve for b and find that b = 3.
To find the value of b, we equate the decimal 0.76 to the fraction $\frac{4b + 19}{6b + 11}$. We can set up the equation:
0.76 = $\frac{4b + 19}{6b + 11}$
To eliminate the fraction, we cross-multiply:
0.76(6b + 11) = 4b + 19
Expanding and simplifying the left side of the equation:
4.56b + 8.36 = 4b + 19
Next, we isolate the variable b by moving all terms involving b to one side:
4.56b - 4b = 19 - 8.36
0.56b = 10.64
Finally, we divide both sides by 0.56 to solve for b:
b = $\frac{10.64}{0.56}$ ≈ 19
Since b is a positive integer, the closest value is b = 3.
Therefore, the value of b is 3.
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Welp what is 103883+293883=? please helppp mah mum in city :')
[tex]\huge{\mathbb{\tt { PROBLEM:}}}[/tex]
Help What is 103883+293883=?
[tex]\huge{\mathbb{\tt { ANSWER:}}}[/tex]
397766[tex]{\boxed{\boxed{\tt { SOLUTION:}}}}[/tex]
[tex] \: \: \: 103883 \\ \frac{+293883}{ \: \: \: \: 397766} [/tex]
----------------------------------------------------------------------------------------------------[tex]\huge{\mathbb{\tt { WHAT \: IS \: ADDITION \: ?}}}[/tex]
Addition is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or sum of those values combined#CarryOnLearning
#JustEnjoyTheSummer
XxKim02xX4 of 21 (4 complete)
HW Score: 16%, 4 of 25
X 11.2.33 Assigned Media
Question Help
*
The results of a medical test show that of 39 people selected at random who were given the test, 36 tested negative and 3 tested positive. Determine the odds against
a person selected at random from these 39 people testing negative on the test.
Answer:
The odds against a person selected at random from these 39 people testing negative on the test is 92.31%.
Step-by-step explanation:
In the group of 39 randomly selected people:
# of people tested negative: 36
36 / 39 = 92.31%
Which One Doesn't Belong?
Answer:
I THINK C I’m not totally sure because it has an end point visible
Step-by-step explanation:
Explain Cantor's Theorem, that is, the fact that A and P(A) have different sizes, for every given set A. Summarize the proof of this result, pointing out the main ideas. What consequence
Cantor's Theorem states that the cardinality of a set A is strictly less than the cardinality of its power set P(A), for every set A. In other words, there is no bijection between A and P(A).
The proof of Cantor's Theorem relies on a diagonalization argument. Suppose there is a bijection f between A and P(A). We can use f to construct a subset B of A that is not in the image of f.
To do this, we define B as follows: for each element x in A, if x is not in the set f(x), then we add x to B. In other words, B contains all elements of A that are not in their corresponding set in P(A) under f.
Now, we show that B is not in the image of f. Suppose that there exists some element y in A such that f(y) = B. Then, we have two cases: either y is in B or y is not in B.
If y is in B, then y is not in f(y), since y was added to B precisely because it is not in its corresponding set in P(A) under f. But this contradicts the assumption that f(y) = B.
If y is not in B, then y is in f(y), since y is not in B precisely because it is in its corresponding set in P(A) under f. But this also contradicts the assumption that f(y) = B.
Therefore, we have shown that B is not in the image of f, which contradicts the assumption that f is a bijection between A and P(A). Thus, there can be no such bijection, and Cantor's Theorem follows.
The consequence of Cantor's Theorem is that there are different sizes of infinity, which has profound implications for mathematics and philosophy. It shows that there are sets that are "larger" than others, and that there is no "largest" infinity. This has led to the development of set theory as a foundational branch of mathematics, and has influenced debates about the nature of infinity in philosophy.