Answer:
(MAD) mean absolute deviation: 114.2
Step-by-step explanation:
Mean: 62 + 71 + 83 + 110 + 501 + 94 + 227 = 1,148/7 = 164
164 - 62 = 102
164 - 71 = 93
164 - 83 = 81
164 - 110 = 54
164 - 501 = 337
164 - 94 = 70
164 - 227 = 63
Mean Absolute Deviation: 102 + 93 + 81 + 54 + 337 + 70 + 63 = 800/7 = 114.2
Answer:
Step-by-step explanation:
First, add all the numbers and count the total amount of numbers.
Once you've done that find the mean by dividing the total of the numbers by how many numbers you have.
Next make a chart, have 2 parts in the chart. Make boxes for however many numbers you have. Make another row in the chart for the distance from the mean ( how many numbers is it from the mean.)
Add all the "distance from mean" numbers and divide by total numbers, If a decimal, round up or down.
Then, you have the M.A,D ( Mean Absolute Deviation )
PLZ I NEED HELP WITH THIS PROBLEM!
Answer:
Q3= 66.5
Step-by-step explanation:
median= 61.5
Q1= 56.5
Q3= 66.5
(65+68)/2= 66.5
what is the product of 4r^2-3 and 2r?
Show all work.
Answer:
8[tex]r^{3}[/tex] - 6r
Step-by-step explanation:
2r(4r^2-3)
= 8[tex]r^{3}[/tex] - 6r
А
B
(4x + 5)
Quadrilateral ABCD is inscribed in a circle,
What is the measure of angle A?
Enter your answer in the box
(x + 15)
mŁA =
Answer:
mLA=133 degrees
Step-by-step explanation:
4x+5+x+15=180
5x+20=180
5x=160
x=32
4(32)+5=128+5=133
Hugo reflects a vector v across the line y = –x. Nemo rotates a vector v 180° counterclockwise about the origin. Which of the following vectors would have the same image for Hugo and Nemo?
Answer:
The (3, 3) one
Step-by-step explanation:
i did the exam and got it right ;)
The vectors that have the same image for Hugo and Nemo are [3, 3].
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
To find the reflection of a vector v across the line y = -x, we can use the formula:
reflection(v) = R×v × R
where R is the reflection matrix given by:
R = [0 1]
[1 0]
To find the rotation of a vector v by 180° counterclockwise about the origin, we can use the formula:
rotation(v) = Rθ × v
where Rθ is the rotation matrix given by:
Rθ = [-1 0]
[0 -1]
Let's apply these transformations to each vector and see which ones have the same image for both Hugo and Nemo:
Reflection(d) = R × d × R = [0 1] × [3, 3] × [0 1] = [3, 3]
Rotation(d) = Rθ × d = [-3, -3]
These two vectors are equal.
Therefore, the vectors that have the same image for Hugo and Nemo are [3, 3].
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What is 9.81 million in scientific notation ?
Answer:
9.81*10 (you have to add that tiny six next to the 0)
Step-by-step explanation:
Answer:
9.81 x 10^6
pls help quick will mark as brainliest
The measure of a central angle is 3 x + 18, and the measure of its arc is 147°. Which equation can you use to find the value of x ?
A) 2(3 x + 18) = 147°
B) 3 x + 18 = 2(147°)
C) 3 x + 18 = 147°
Answer:
C
Step-by-step explanation:
The central angle is equal to the measure of the arc that subtends it, thus
3x + 18 = 147 → C
Answer: C.) 3x + 18=147
hoped this helped
:)
Can y’all find the missing side length so that their similar figures
Answer:
1. x = 9.75,
2. x = 36,
3. x = 12
Step-by-step explanation:
See attachment below;
What is the sum? …...
............................
Find the value of x for which
Someone plz help fast will give brainiest
Answer:
$5
Step-by-step explanation:
The bill was $15 extra this month so 15 divided by 3 is 5.
The radius of a circle is 5 cm. Find its area to the nearest tenth.
Answer:
A = 78.5 cm²
Step-by-step explanation:
Area of Circle = πr²
A = (3.14)(5)²
A = (3.14)(25)
A = 78.5 cm²
The area formula of a circle is r² x π.
With that being said, we can now substitute in our radius value.
(5)² x π
From there, we can find the square root of the radius.
(25) x π
And then we can multiply by pi to solve.
78.539816..
Finally, we'll round to the nearest tenth to get our answer.
78.5
Therefore, the area of the circle is 78.5 cm.
Hope this helped! :)
Prove: The quadrilateral formed by joining in order the midpoints of the sides of a rectangle is a parallelogram. Given: ABCD is rectangle K, L, M, N are midpoints Prove: KLMN is a parallelogram Which of the following reasons would complete the proof in line 6? If both pair of opposite sides of a quadrilateral are equal, then it is a parallelogram. If both pair of opposite sides of a quadrilateral are parallel, then it is a parallelogram. If a pair of opposite sides of a quadrilateral are parallel and equal, then it is a parallelogram.
Answer:
If a pair of opposite sides of a quadrilateral are parallel and equal, then it is a parallelogram.
Step-by-step explanation:
By definition, a parallelogram is a quadrilateral with two pairs of parallel sides. These parallel sides are of equal length and the opposite angles of a parallelogram are of equal measure.
Answer:
if a pair of opposite sides of a quadrilateral are parallel and equal, then it is a parallelogram.
Step-by-step explanation:
got it right on oddyssey
Select all of the zeros of the function f(x) = (3x − 4)(x + 2)
4
2
4/3
-4/3
-2
-4
Answer:
Hi Gracie pretty sure the answer is 4/3, -2
Step-by-step explanation:
The zeroes of the function f(x) = (3x − 4)(x + 2) is 4/3, -2 option (3) and option (5) are correct.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a function:
f(x) = (3x - 4)(x +2)
To find the zeroes of the function:
Applying zero product property:
(3x - 4)(x +2) = 0
The above equation represents a quadratic equation,
As we know, Any equation of the form[tex]\rm ax^2+bx+c=0[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
3x - 4 = 0
3x = 4
x = 4/3
or
x + 2 = 0
x = -2
Thus, the zeroes of the function f(x) = (3x − 4)(x + 2) is 4/3, -2 option (3) and option (5) are correct.
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Which equation represents the line that passes through the points (-4, 10) and (-8, 9)?
17. The Cruz family is buying a custom-made cover for their swimming pool, shown below. The cover costs
$2.95 per square foot. How much will the cover cost? Round to the nearest cent.
25 tt
a
$2,627.56
c. $1,627.56
b. $1,467.56
d. $1,212.89
Answer:
The answer is is
C. $1,627.56
Step-by-step explanation:
The question is incomplete,
Kindly find attached the diagram of the poll for the dimension for your reference.
we need to first calculate the area of the pool.
Let's begin by calculating the area of the rectangular shape
A= length x width
A= 25*15
A=375ft²
Secondly the two semi circles can be solved for as a whole circle
Area of circle = πr²
Radius r= diameter/2= 15/2= 7.5ft
Area = 3.142*7.5²
A= 3.142*56.25
A= 176.7375ft²
Total surface area pool =
176.7375+375= 551.7ft²
Given that a square foot is $2.95
Hence the cost of covering the pool is 551.7*2.95=$1,627.515
help
please help me.
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Nadine promised to meet her friend at a store but she forgot which store. There are five
stores in town. What is the probability that Nadine will go to the right store first?
B
0.20
A
0.16
D
1.00
С
0.80
Answer:
.2 chance of going to the right store
Step-by-step explanation:
Five stores, and she is to meet a friend at one. One store is the right one so it is 1 out of 5, or 1/5. This equals 20%
In decimal it is a .2 chance of Nadine going to the right store
Hope this helps!
Marco measured the height of his snowman at the beginning of the week and again after five days. The change in height was -10 inches. How much did the snowman shrink per day?
Answer:
-2 inches
Step-by-step explanation:
Change in height: -10 inches
Days over which change noticed: 5 days
Change per day: -10÷5= -2 inches
The snowman shrank -2 inches per day.
Please help i dont know what to do for #1 we never went over it.Help asap Please. You migjt have to flip devoce upside down to see
Answer:. GCF of first two terms is 7r^2.
GCF for last two terms is 2
Step-by-step explanation: GCF means the largest number that the terms can be divided by evenly.
7 and 14 are both divisible by 7. The factors of those terms are (7r^2)(r +2).
r^3 means r × r × r. r^2 means r × r so r^2 is a factor of r^3
2r and 4 are both divisible by 2. The factors of those terms are (2)(r +2)
You jog 2 miles every 15 minutes. How much do you jog per minute? Write your answer as a fraction in simplest form.
Answer:
7 and 1/2 miles per minute. Just divide 2 by 15.
Which expression represents the distance between point (0, a) and point (a, 0) on a coordinate grid?
2a1
Answer:
[tex]\sqrt{2} a[/tex]
Step-by-step explanation:
The distance between point (x1,y1) and (x2,y2) on a coordinate plane is given by expression [tex]\sqrt{(x1-x2)^2+(y1-y2)^2}[/tex]
In the problem given coordinate points are
(0, a) and (a, 0).
Thus, distance between these points are given by
[tex]distance = \sqrt{(x1-x2)^2+(y1-y2)^2}\\=>distance = \sqrt{(0-a)^2+(a-0)^2}\\=>distance = \sqrt{(a)^2+(a)^2}\\\\=>distance = \sqrt{2a^2}\\=>distance = \sqrt{2} a[/tex]
Thus , expression [tex]\sqrt{2} a[/tex] gives the distance between point (0, a) and point (a, 0) on a coordinate grid.
Answer:
A) √2a^2
Step-by-step explanation:
I just took the quiz on edge
Find the length of a diagonal of a square if its area is 162 square feet.
Answer:
9sqrt(2) ft or 12.73 ft
Step-by-step explanation:
A = L^2
sqrt(162) = 9sqrt(2)
The diagonal of a square is equal to the side length.
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles. The top angle of the triangle is (2 x + 10) degrees. The bottom right angle of the triangle is 79 degrees. The exterior angle to the bottom left angle is (6 x + 1) degrees. What is the value of x? x = 2.25 x = 11.25 x = 13 x = 22
Answer:
11.25
Step-by-step explanation:
8x+11=180-79
8x+11=101
8x=90
x=11.25
By angle sum property the value of x in the expression (2 x + 10) + (6 x + 1) +79 =180 is 11.25
What is the angle sum property?The angle sum property of a triangle states that the sum of the interior angles of a triangle is 180 degrees.
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles.
The top angle of the triangle is (2 x + 10) degrees. The bottom right angle of the triangle is 79 degrees.
The exterior angle to the bottom left angle is (6 x + 1) degrees.
By angle sum property
(2 x + 10) + (6 x + 1) +79 =180
8x+11 + 79 =180
8x+11=180-79
8x+11 =101
8x = 90
x = 11.25
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The box plot compares the number of events that Mrs. Cai’s and Mr. Roland’s classes won over the last 10 years on the school’s field day.
A number line goes from 0 to 10. Mrs. Cai's class's whiskers range from 0 to 8, and the box ranges from 2 to 4. A line divides the box at 3. Mr. Roland's class's whiskers range from 1 to 8, and the box ranges from 4 to 7. A line divides the box at 5.
Based on the data in the box plots, what is the best evidence to show which class has had greater success on field day over the last 10 years?
Mrs. Cai’s class was more successful because her interquartile range was less spread out.
Mrs. Cai’s class was more successful because she had the greater total spread.
Mr. Roland’s class was more successful because his class always won at least one event.
Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
Answer:
D. Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
Step-by-step explanation:
Mrs. Cai's class's box ranges from 2 to 4, that is, her class’s upper quartile is 4.
Mr. Roland's class's box ranges from 4 to 7, that is, his class’s lower quartile 4.
Answer:
D
Step-by-step explanation:
Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
in 2009, a gullop poll found that 47% of Americans favored protection of the environment at the risk of limiting energy supplies, while 46% favored the development of u.s energy supplies even if that risked harming the environment. Another 3% felt that energy and the environment were equally important. a) based on the poll, whats the probability a person had "no opinion"? b) Whats the probability of that a respondent rated protecting the environment as equally important or more important than developing energy sources
Answer:
your
Step-by-step explanation:
welcome
If f(x) = 3x + 7, find:
f(-2) = [ ? ]
Answer:
1
Step-by-step explanation:
Plug in -2.
f(x) = -6+7
f(x) = 1
The value of the given function when x is -2 is 1.
What is a function?A function is defined as a relation between a set of inputs having one output each.
Given a function, f(x) = 3x + 7
Put x = -2.
f(-2) = -6+7
f(-2) = 1
Hence, The value of the given function when x is -2 is 1.
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The quotient of two numbers is 4, and the difference is 3. What are the two numbers
Answer:
The numbers are 4 and 1
Step-by-step explanation:
Let x and y be the numbers
Quotient is division
x/y = 4
x-y =3
Taking the first equation and multiplying each side by y
x = 4y
Replacing into the second equation
4y -y = 3
3y = 3
Divide by 3
3y/3 = 3/3
y=1
Now we can find x
x -y =3
x-1 =3
Add 1 to each side
x= 4
Can somebody answer this.
Answer:
J-12-16KL(-12, -16)MOSorry. I cannot really the points and graphs clearly.
I hope I helped you! If my answer is correct, please mark me brainiest. Thanks!
Can you help me? I am confused this is a hard question for me
Answer:
960, 160 for each face / base
Step-by-step explanation:
Zachary used the calculations shown to find how much he would spend on 16 ounces of pistachios.
6 ounces of pistachios cost $7.50
StartFraction 7 dollars and 50 cents Over 6 ounces EndFraction = StartFraction dollar-sign question mark Over 1 ounce EndFraction
Unit price = $0.80 per ounce
(16 ounces) (StartFraction 80 cents Over 1 ounce EndFraction) = 12 dollars and 80 cents
What was his first error?
Answer:
He made a math error
Step-by-step explanation:
6 ounces of pistachios cost $7.50
take 7.50 / 6=1.25 per ounce ( not .80 per ounce)
Then 1.26 * 16 = 20.00 for 16 ounces
Answer: B
Step-by-step explanation: The price per ounce should have been $1.25 per ounce.
I hope this helps! °ω°