Answer:
There are six possible forms of 4-digit numbers consisting of two odd digits and two even digits:
OOEE
OEOE
OEEO
EEOO
EOEO
EOOE
Each of the three forms starting with (O)dd digits can form 5^4 = 625 numbers, since there are 5 odd and 5 even digits.
Each of the three forms starting with (E)ven digits can form 4*5^3 = 500 numbers, since the first digit cannot be zero.
Therefore, the total numbers possible is 3*(625+500)
= 3,375
Step-by-step explanation:
HELP ME NOWWWWWW PLZZZZZZ EXPLAIN UR ANSWER FOR BRAINLIEST
Answer:
The answer's A 1/52
Step-by-step explanation:
That's because there's only one ace of hearts in a deck of 52 cards.
Answer: A) 1/52
Step-by-step explanation:
There is 52 cards in a whole deck, and the probability of getting that ace card is 1/52 because there is only 1 ace card in an entire deck of cards.
Hence, the answer is 1/52
Not sure how I would solve this
The first ordered pair is ( -4 , -3 )
The second ordered pair is ( 8, 3 )
=================================================
Explanation:
The first point is (x,-3) where x is unknown. It pairs up with y = -3 so we can use algebra to find x
x-2y = 2
x-2(-3) = 2 ... replace every y with -3; isolate x
x+6 = 2
x = 2-6
x = -4
The first point is (-4, -3)
---------------------------
We'll do something similar for the other point. This time we know x but don't know y. Plug x = 8 into the equation and solve for y
x-2y = 2
8-2y = 2
-2y = 2-8
-2y = -6
y = -6/(-2)
y = 3
The second point is (8, 3)
EACH PAIR OF FIGURES IS SIMILAR. FIND THE MISSING SIDE!!!!
Answer:
58.1 and 17
Step-by-step explanation:
For the first triangles the similarity ratio is 1:7 so x is 8.3 × 7 = 58.1
For the second triangles the similarity ratio is 1:5 so x is 3.4 × 5 = 17
Both the P-value method and the critical value method use the same standard deviation based on the claimed proportion p, so they are equivalent to each other. Is this also true about the confidence interval method?
Answer:
Yes, it's also true about the confidence interval method.
Step-by-step explanation:
The confidence interval includes all the null hypothesis values for the population mean that would be accepted by the hypothesis test at the significance level of 5%. Now, it means this assumes a two-sided alternative.
Now, when testing claims about
population proportions, the critical method and the P-value method are equivalent due to the fact that they always produce the same result. Similarly, a conclusion based on a confidence interval estimate will be the same as a conclusion based on a hypothesis test.
So, Yes the confidence interval method and the P-value or critical methods will always lead to the same conclusion when the tested parameter is the standard deviation.
Use cylindrical coordinates. Find the volume of the solid that lies within both the cylinder x2 y2
Answer:
hello your question is incomplete here is the complete question
Use cylindrical coordinates Find the volume of the solid that lies within both the cylinder x^2 + y^2=16 and the sphere x^2 + y^2 + Z^2= 81
Answer : [tex]\frac{4 \pi }{3} [729 - 65\sqrt{65} ][/tex]
Step-by-step explanation:
The given data
cylinder = x^2 + y^2 = 16
sphere = x^2 + y^2 +z^2 = 81
from the given data the solid is symmetric around the xy plane hence we will calculate half the solid volume above the plane then multiply the sesult by 2
Note : we are restricting our attention to the cylinder x^2 + y^2 = 16 and also finding the volume inside the sphere which gives bound on the z-coordinate as well
the r parameter goes from 0 to 4
ATTACHED IS THE REMAINING PART OF THE SOLUTION
showing the integration
A rectangular rug has a perimeter of 460 meters. The width of the rug is five meters more than 4 times the length. Find the
length and the width.
Answer:
Length = 45 m
Width = 185 m
Step-by-step explanation:
Given:
Perimeter of rectangular rug = 460 m
width of the rug is five meters more than 4 times the length
To find:
Width and length of rug = ?
Solution:
Let the length = [tex]l[/tex] m
As per given statement,
Width = [tex]4l+5[/tex] m
Formula for perimeter of a rectangle = [tex]2\times (Length +Width)[/tex]
[tex]460=2\times (l+4l+5)\\\Rightarrow 230 = 5l+5\\\Rightarrow l = \dfrac{225}{5} = 45\ m[/tex]
Width = [tex]4l+5[/tex] m
Width = [tex]4\times 45+5 = 185\ m[/tex]
So, the answer is:
Length = 45 m
Width = 185 m
Consider the matrices. A=⎡⎣⎢4−3−578−2⎤⎦⎥ and B=⎡⎣⎢−27−35−12⎤⎦⎥ What is the result of A−B? Enter your answer by filling in the boxes.
Answer:
Step-by-step explanation:
hello
[tex]A-B=\left[\begin{array}{cc}4-(-2)&7-5\\-3-7&8-(-1)\\-5-(-3)&-2-2\end{array}\right] \\\\=\left[\begin{array}{cc}4+2&2\\-10&8+1\\-5+3&-4\end{array}\right] \\\\=\left[\begin{array}{cc}6&2\\-10&9\\-2&-4\end{array}\right][/tex]
hope this helps
If two matrices are given as,
[tex]X=\begin{bmatrix}a & b\\ c & d\end{bmatrix}[/tex] and [tex]Y=\begin{bmatrix}h & k\\ l & m\end{bmatrix}[/tex]
Then [tex]X-Y=\begin{bmatrix}a-h & b-k\\ c-l & d-m\end{bmatrix}[/tex]
Following this rule answer will be → [tex]A-B=\begin{bmatrix}6 & 2\\ -10 & 9\\ -2 & -4\end{bmatrix}[/tex].
It's given in the question,
Two matrices, [tex]A=\begin{bmatrix}4 & 7\\ -3 & 8\\ -5 & -2\end{bmatrix}[/tex] and [tex]B=\begin{bmatrix}-2 & 5\\ 7 & -1\\ -3 & 2\end{bmatrix}[/tex]
Therefore, [tex]A-B=\begin{bmatrix}4+2 & 7-5\\ -3-7 & 8+1\\ -5+3 & -2-2\end{bmatrix}[/tex]
[tex]A-B=\begin{bmatrix}6 & 2\\ -10 & 9\\ -2 & -4\end{bmatrix}[/tex]
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Help me pls pls pls pls
Answer:
The valid point is (5/2, 5)
Step-by-step explanation:
In order to check which ones are valid we will apply all of them to the expression.
(5,15):
[tex]\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}5 - \frac{1}{5}15 \geq 0\\\\-1 \geq 0[/tex]
False.
(1/2, 5):
[tex]\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}\frac{1}{2} - \frac{1}{5}5 \geq 0\\\\-\frac{4}{5} \geq 0[/tex]
False.
(5/2, 5):
[tex]\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}\frac{5}{2} - \frac{1}{5}5 \geq 0\\\\0 \geq 0[/tex]
True.
(2,5):
[tex]\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}2 - \frac{1}{5}5 \geq 0\\\\-\frac{1}{5} \geq 0[/tex]
False
(-1,0):
[tex]\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}(-1) - \frac{1}{5}0 \geq 0\\\\-\frac{2}{5} \geq 0[/tex]
False.
[!URGENT!] In the figure PQ is parallel to RS. The length of QT is 4 cm; the length of TS is 6 cm; the length of PQ is 10 cm. What is the length of RS?
Answer:
Short answer: D) 15
Step-by-step explanation:
Parallel lines in this kind of triangle are always in a strict ratio of small to large or large to small based on how you look at it.
So we have 4cm to 6cm, which is 2:3 ratio. We know the smaller side, but want the larger side, so we can set up 2/3 = 10/?
the ? is 15.
if he allows 40 people to choose a treat from the bag about how many lizard lollis can he expect to give away
Answer:
20 Lizard lollies.
Step-by-step explanation:
There are 10 lizard lollis. This is out of 10+4+6 = 20 total treats. This makes the probability of drawing a lizard lollis 10/20 = 1/2.
This means out of 40 treats handed out, we can expect him to give out 1/2(40) = 20 lizard lollis.
Find the velocity. Please help. Thank you!
Answer:
His final velocity is 48.03 m/s
Step-by-step explanation:
Using SI units (m, kg, s)
a = 3.7
x0 = 25
x1 = 300
v0 = 16.5
Apply kinematics formula
v1^2 - v0^2 = 2a(x1-x0)
solve for v1
Final velocity
v1 = sqrt(2a(x1-x0)+v0^2)
= sqrt( 2(3.7)(300-25)+16.5^2) )
= 48.03 m/s
Which first step for solving the given system using substitution results in an equation without fractions?
[3x+y=9
15x-3y = 1
Solve for x in the first equation.
Solve for y in the first equation.
Solve for x in the second equation.
Solve for y in the second equation.
Answer:
Solve for y in the first equation.
Step-by-step explanation:
Given
3x+y=9
15x-3y = 1
Required
Determine the first step to avoid fractions
From the list of given options, the option that best answered the question is to Solve for y in the first equation.
Solving for y will let you substitute the expression for y in the second equation
Going by that:- Solve for y in the first equation.
[tex]3x + y = 9[/tex]
Subtract 3x from both sides
[tex]3x - 3x + y = 9 - 3x[/tex]
[tex]y = 9 - 3x[/tex]
Substitute 9 - 3x for y in the second equation
[tex]15x - 3y = 1[/tex] becomes
[tex]15x - 3(9 - 3x) = 1[/tex]
[tex]15x - 27 + 9x = 1[/tex]
Collect like terms
[tex]15x + 9x = 1 + 27[/tex]
[tex]24x = 28[/tex]
Divide both sides by 24
[tex]\frac{24x}{24} = \frac{28}{24}[/tex]
[tex]x = \frac{28}{24}[/tex]
Divide numerator and denominator by 4
[tex]x = \frac{7}{6}[/tex]
Substitute 7/6 for x in the [tex]y = 9 - 3x[/tex]
[tex]y = 9 - 3 * \frac{7}{6}[/tex]
[tex]y = 9 - \frac{7}{2}[/tex]
Solve fraction
[tex]y = \frac{18-7}{2}[/tex]
[tex]y = \frac{11}{2}[/tex]
Answer:
It's B (the one above is right)
Step-by-step explanation:
A square matrix is called a permutation matrix if it contains the entry 1 exactly once in each row and in each column, with all other entries being 0. All permutation matrices are invertible. Find the inverse of the following permutation matrix.
A = [0 0 1 0, 0 0 0 1, 0 1 0 0, 1 0 0 0]
The inverse of the given permutation matrix A is
[tex]\[ A^{-1} = \begin{bmatrix}0 & 0 & 0 & 1 \\0 & 0 & 1 & 0 \\1 & 0 & 0 & 0 \\0 & 1 & 0 & 0 \\\end{bmatrix} \][/tex]
To find the inverse of the given permutation matrix A:
[tex]\[ A = \begin{bmatrix}0 & 0 & 1 & 0 \\0 & 0 & 0 & 1 \\0 & 1 & 0 & 0 \\1 & 0 & 0 & 0 \\\end{bmatrix} \][/tex]
Utilize the concept that the inverse of a permutation matrix is its transpose.
Therefore, the inverse of matrix A is:
[tex]\[ A^{-1} = A^T \][/tex]
Taking the transpose of matrix A, gives
[tex]\[ A^{-1} = \begin{bmatrix}0 & 0 & 0 & 1 \\0 & 0 & 1 & 0 \\1 & 0 & 0 & 0 \\0 & 1 & 0 & 0 \\\end{bmatrix} \][/tex]
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The first two steps in determining the solution set of the system of equations, y = -x2 + 4x + 12 and y=-3x + 24,
algebraically are shown in the table.
Answer:
C
Step-by-step explanation:
(3,15) and (4,12)
Answer:
C or (3, 15) and (4, 12)
Step-by-step explanation:
I just took the test on Edge 2020
Identify the vertex of the function. PLEASE HELP!!!
Answer:
Step-by-step explanation:
y-|x|+3
y=|x|+3
vertex=(0,3)
y=|x-4|-7
vertex(4,-7)
find domain and range using interval notation
Hey there! :)
Answer:
D: [8, 12].
R: [-10, -6].
Step-by-step explanation:
Notice that the endpoints of the graph are closed circles. This means that square brackets will be used:
The graphed equation is from x = 8 to x = 12. Therefore, the domain of the function is:
D: [8, 12].
The range goes from y = -10 to -6. Therefore:
R: [-10, -6].
Answer:
D: [8 , 12]
R: [-10 , -6]
Step-by-step explanation:
Well for this parabola domain and rage are acttually limited because of the solid dots you see on the graph.
So first things first, what is range? Well range is the amount of y values on a line or anything in a graph.
And what’s domain? Domain is the amount of x values on a line or whatnot.
So let’s do domain first.
On the parabola the first x value is 8 and the last is 12 so we have to write this in interval notation which is [8 , 12].
Now for range the lowest y value is -10 and the highest is -6 so in interval notation it is [-10 , -6].
Question 1 (1 point)
A CODE has 4 digits. you remember that the 4 digits are 1, 3, 5, and 7, but you
cannot remember the sequence. What is the probability that you guess the code
correctly on the first try?
Answer:
24 ways
Step-by-step explanation:
There are 4!=24 ways to make distinct codes with the given distinct digits. So the probability of guessing it the first time is 1/24.
The probability that you guess the code correctly on the first try will be 1/24.
What is the probability?Probability is synonymous with possibility. It is concerned with the occurrence of a random event.
Probability can only have a value between 0 and 1. Its simple notion is that something is very likely to occur. It is the proportion of favorable events to the total number of events.
If the code is arranged then the total number of ways possible is;
⇒4!
⇒4×3×2×1
⇒24
Possible outcome = 1
Total outcome = 24
Probability = Possible outcome/total outcome
Probability = 1/24
Hence the probability that you guess the code correctly on the first try will be 1/24.
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In the figure below, what is the value of xº?
Answer:
[tex] \boxed{\sf x \degree = 62 \degree} [/tex]
Step-by-step explanation:
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
[tex] \sf \implies x \degree + 38 \degree = 100 \degree \\ \\ \sf \implies x \degree + (38 \degree - 38 \degree) = 100 \degree - 38 \degree \\ \\ \sf \implies x \degree = 100 \degree - 38 \degree \\ \\ \sf \implies x \degree = 62 \degree[/tex]
In the given figure, the value of x is 62°.
What is angle ?An angle is the formed when two straight lines meet at one point, it is denoted by θ.
The given angles are,
x°, 38° and 100°.
To find the value of angle x, use exterior angle property.
According to exterior angle property,
The sum of two interior angles is equal to exterior angle.
Since, 100° is the exterior angle of x and 38.
x + 38 = 100
x = 100 - 38
x = 62.
The required value of angle x is 62°.
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help me pls pls pls please
Hey there! :)
Answer:
y = 5/7x + 2.
Step-by-step explanation:
We can use the slope formula to determine the slope of the line of best fit:
[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Plug in two points on the line:
[tex]m= \frac{7 - 2}{7 - 0}[/tex]
Simplify:
m = 5/7.
The b value, or y-intercept is at (0, 2). Therefore, this equation in slope-intercept form would be:
y = 5/7x + 2.
The correct choice contains the formula y = 5/7x + 2.
Apply the product rules to determine the sign of each expression
Answer:
Step-by-step explanation:
1). [tex](\frac{-4}{9})\times (\frac{7}{4})=(-1)(\frac{4}{9})(\frac{7}{4} )[/tex]
[tex]=-\frac{7}{9}[/tex] [Negative]
2). [tex](-2\frac{3}{4})(-1\frac{1}{5})=(-1)(2\frac{3}{4})(-1)(1\frac{1}{5})[/tex]
[tex]=(-1)^2(2\frac{3}{4})(1\frac{1}{5})[/tex]
[tex]=(2\frac{3}{4})(1\frac{1}{5})[/tex] [Positive]
3). (3)(-3)(-3)(-3)(-3) = 3.(-1).3.(-1).3.(-1).3(-1).(3)
= (-1)⁴(3)⁵
= (3)⁵ [Positive]
4). [tex](-\frac{1}{6})(-2)(-\frac{3}{5})(-9)[/tex] = [tex](-1)(\frac{1}{6})(-1)(2)(-1)(\frac{3}{5})(-1)(9)[/tex]
= [tex](-1)^4(\frac{1}{6})(2)(\frac{3}{5})(9)[/tex]
= [tex](\frac{1}{6})(2)(\frac{3}{5})(9)[/tex] [Positive]
5). [tex](-\frac{4}{7})(-\frac{3}{5})(-9)=(-1)(\frac{4}{7})(-1)(\frac{3}{5})(-1)(9)[/tex]
[tex]=(-1)^3(\frac{4}{7})(\frac{3}{5})(9)[/tex]
[tex]=-(\frac{4}{7})(\frac{3}{5})(9)[/tex] [Negative]
6). [tex](-\frac{10}{7})(\frac{8}{3})=(-1)(\frac{10}{7})(\frac{8}{3})[/tex]
[tex]=-(\frac{10}{7})(\frac{8}{3})[/tex] [Negative]
What is the meaning of the point with an x-coordinate of 2?
Speed of Space Station
16
14
12
E 10
4
2
2
4
6 8 10 12 14 16
Time (seconds)
A. In 2 seconds, the space station travels 10 miles.
Ο Ο
B. The space station travels 2 miles in 10 seconds.
O C. It takes the space station 5 seconds to go 10 miles.
OD. In 1 second, the space station travels 2 miles.
Answer:
help me in chemistry please please
Answer:
A. In 2 seconds, the space station travels 10 miles.
Step-by-step explanation: well you’d look at the x-coordinate 2, bottom row then count 2 to the right, you’d go up until the lines intersect and you’d be at 10 miles.. so yea that’s how i did it..
A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 5% margin of error at a 97.5% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places.
Answer:
The sample size required is, n = 502.
Step-by-step explanation:
The (1 - α)% confidence interval for population proportion is:
[tex]CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p\cdot (1-\hat p)}{n}}[/tex]
The margin of error is:
[tex]MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}[/tex]
Assume that 50% of the people would support this political candidate.
The margin of error is, MOE = 0.05.
The critical value of z for 97.5% confidence level is:
z = 2.24
Compute the sample size as follows:
[tex]MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}[/tex]
[tex]n=[\frac{z_{\alpha/2}\times \sqrt{\hat p(1-\hat p)}}{MOE}]^{2}[/tex]
[tex]=[\frac{2.24\times \sqrt{0.50(1-0.50)}}{0.05}]^{2}\\\\=501.76\\\\\approx 502[/tex]
Thus, the sample size required is, n = 502.
add the following - 4/9,7/12and - 3/8
Answer:
[tex] - \frac{17}{72} [/tex]Step-by-step explanation:
[tex] - \frac{4}{9} + \frac{7}{12} + ( - \frac{ 3}{8} )[/tex]
When there is a (+) in front of an expression in parentheses, the expression remains the same:
[tex] - \frac{4}{9} + \frac{7}{12} - \frac{3}{8} [/tex]
[tex] \frac{ - 4 \times 8 + 7 \times 6 - 3 \times 9}{72} [/tex]
Calculate the sum of difference
[tex] \frac{ - 32 + 42 - 27}{72} [/tex]
[tex] \frac{10 - 27}{72} [/tex]
[tex] - \frac{17}{72} [/tex]
Hope this helps..
Good luck on your assignment...
Find the 7 term of the Gb 2 , -6 , 18
Answer:
The 7th term is 1458Step-by-step explanation:
For a geometric sequence
U(n) = ar^n - 1
Where
n is the number of terms
r is the common ratio
a is the first term
From the sequence
a = 2
r = - 6 /2 = -3
U(n) = 2(-3) ^ n - 1
For the 7th term
U(7) = 2(-3) ^ 7 - 1
= 2(-3)^6
The final answer is
= 1458
Hope this helps you
Sue has $1.80 in dimes and nickels. If she has 9 more dimes than nickels, How many of dimes and nickels does she have?
Answer:
15 dimes6 nickelsStep-by-step explanation:
Let d represent the number of dimes. Then d-9 is the number of nickels. The total value (in cents) is ...
10d +5(d-9) = 180
15d -45 = 180 . . . . . simplify
d -3 = 12 . . . . . . . . . .divide by 15
d = 15
15 -9 = 6 = number of nickels
Sue has 15 dimes and 6 nickels.
Answer:
15 dimes, 6 nickels
Step-by-step explanation:
D = # of dimes, and N = # of nickels
10D + 5N = 180
D = N + 9
Substitute:
10 (N + 9) + 5N = 180
10N + 90 + 5N = 180
15N = 90
N = 6
D = 15
On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal
distance from the y-axis to the same point. What is sine?
Answer:
(2/5)√5 ≈ 0.894427
Step-by-step explanation:
You require the y-coordinate of the point that satisfies two equations:
x^2 +y^2 = 1
y = 2x
Substituting for x, we have ...
(y/2)^2 +y^2 = 1
y^2(5/4) = 1
y^2 = 4/5
y = (2/5)√5 ≈ 0.894427
The sine of the angle is (2/5)√5 ≈ 0.894427.
Answer:
The answer would be C.
Step-by-step explanation:
If y= -3x7+2x3+ x, the derivative of y with respect to x is
Answer:
[tex]\frac{dy}{dx}[/tex] = - 21[tex]x^{6}[/tex] + 6x² + 1
Step-by-step explanation:
Differentiate each term using the power rule
[tex]\frac{d}{dx}[/tex] (a[tex]x^{n}[/tex] ) = na[tex]x^{n-1}[/tex]
Given
y = - 3[tex]x^{7}[/tex] + 2x³ + x , then
[tex]\frac{dy}{dx}[/tex] = (7 × - 3 )[tex]x^{6}[/tex] + (3 × 2)x² + (1 × 1 )[tex]x^{0}[/tex]
= - 21[tex]x^{6}[/tex] + 6x² + 1
Brent counted 10 red cards, 10 black cards, and 20 blue cards in a deck of cards. What is the ratio of red cards to other cards? Answers: A) 1:1 B) 1:2 C) 2:1 D) 1:3
Answer:
1:3
Step-by-step explanation:
10 red cards, 10 black cards, and 20 blue cards
We want the ratio of red to other cards
red : blue and black
10 : 10+20
10 : 30
Divide each side by 10
10/10 : 30/10
1:3
g Consider writing onto a computer disk and then sending it through a certifier that counts the number of missing pulses. Suppose this number X has a Poisson distribution with lamda = .2. a) What is the probability that a disk has exactly one missing pulse? b) What is the probability that a disk has at least two missing pulses? c) What is EX
Answer:
a) P(1) = 0.1637
b) [tex]P(x\geq 2) = 0.0176[/tex]
c) E(x) = 0.2
Step-by-step explanation:
If X follows a poisson distribution, the probability that a disk has exactly x missing pulses is:
[tex]P(x)=\frac{e^{-m}*m^x}{x!}[/tex]
Where m is the mean and it is equal to the value of lambda. So, replacing the value of m by 0.2, we get that the probability that a disk has exactly one missing pulse is equal to:
[tex]P(1)=\frac{e^{-0.2}*0.2^1}{1!}=0.1637[/tex]
Additionally, the probability that a disk has at least two missing pulses can be calculated as:
[tex]P(x\geq 2)=1-P(x<2)[/tex]
Where [tex]P(x<2)=P(0)+P(1)[/tex].
Then, [tex]P(0)[/tex] and [tex]P(x\geq 2)[/tex] are calculated as:
[tex]P(0)=\frac{e^{-0.2}*0.2^0}{0!}=0.8187\\P(x\geq 2) = 1 - (0.8187 + 0.1637)\\P(x\geq 2) = 0.0176[/tex]
Finally, In the poisson distribution, E(x) is equal to lambda. So E(x) = 0.2
The difference of m2 + n2 and m + n is