Mean, median, and mode of the given data is 8.4, 7, and 6 respectively.
What is Central Tendency?A central tendency is a central or typical value for a probability distribution. Colloquially, measures of central tendency are often called averages. The term central tendency dates from the late 1920s. The most common measures of central tendency are the arithmetic mean, the median, and the mode.
Here, Given data
x f xf
5 1 5
6 4 24
7 3 21
8 2 16
10 2 20
13 2 26
14 1 14
Mean = ∑xf/∑f
= 126/15
= 8.4
Median = 7
Mode = 6
Thus, Mean, median, and mode of the given data is 8.4, 7, and 6 respectively.
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A bag contains 2 red marbles, 7 blue marbles and 8 green marbles. If two marbles are drawn out of the bag, what is the exact probability that both marbles drawn will be blue?
Find the vertex, axis of symmetry, and y-intercept of the quadratic function.
Answer:
Vertex: (4, 12)Axis of symerty: x = 4y - inrercept: -4Step-by-step explanation:
The vertex form of quadratic function f(x) = ax² + bx + c:
f(x) = a(x - h)² + k
(h, k) - coordinates of a vertex
h = -b/2a
k = f(h)
We have f(x) = -x² + 8x - 4 ⇒ a = -1, b = 8, c = -4.
h = -8/(2 · (-1)) = -8/(-2) = 4
k = f(4) = -4² + 8 · 4 - 4 = -16 + 32 - 4 = 12
Vertex (4, 12)
Axis of symerty = h: x = 4
y - inrercept f(0) = c: -4
Answer:
See below ~
Step-by-step explanation:
Details of Graph
Vertex = (4, 12)Axis of Symmetry : x = 4Y-intercept : -4Total points in a board game based on the average number of hours played is predicted using the least-square regression line, 9 = 280.3 + 85.7x, where y
represents the total points scored and x represents the average number of hours spent playing the game. A player plays the game for an average of 3 hours
and has a point total of 550. What is the residual for the player?
O 3.15
03
0-126
0-3.15
O 12.6
Using the line of best-fit, it is found that the residual for the player is of 12.6.
What is the residual for a line of best-fit?A residual is given by the difference between the observed point and the predicted point.
In this problem, the expected score over x hours is given by:
f(x) = 280.3 + 85.7x.
Hence, for 3 hours, the predicted score is given by:
f(3) = 280.3 + 85.7 x 3 = 537.4.
The observed score was of 550, hence the residual is given by:
R = 550 - 537.4 = 12.6.
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Pls ingore all of the questions below, but help me with the attached image
What is the only number that has the same number of letters as it's meaning? ...
What number doesn't have its own Roman numeral? ...
What is the only even prime number? ...
What is the smallest perfect number? ...
What is our current numerical system based on? ...
Is Pi a rational or irrational number?
Answer:
A = 51
Step-by-step explanation:
I'm not sure if it is correct but here is my working
180=41+2a+a-14
180=3a+27
153=3a
51=a
Answer:
a=51
Explaination-
ABC + ACB + BAC = 180°
(a-14)° + 2a + 41° = 180°
a=51
please help me get a A
Answer:
y = 1/2 x.
Step-by-step explanation:
Each value of y is 1/2 of x.
PLS PLS HELP HELP ME ITS EASY ITS FREE PONTS LOL
Answer:
92 degrees
Step-by-step explanation:
180-88
=92
~rere
Where does Pythagorean identities and also how it relates to the right triangles
Answer:
A pythagorean identity means that for any angle [tex]\theta[/tex], [tex]sin^2\theta+cos^2\theta=1[/tex].
This also means [tex]1+tan^2\theta=sec^2\theta \mbox{ and } 1+cot^2\theta=csc^2\theta.[/tex] The symbol, theta ([tex]\theta[/tex]) represents one of the acute angles in the right triangle. The hypotenuse (familiarly c in the regular pythagorean theorem) is 1. The triangle base is [tex]cos\theta[/tex], and the height (side perpendicular to the base, making a right angle) is [tex]sin\theta[/tex]. The angle theta is opposite the [tex]sin\theta[/tex] side.
Step-by-step explanation:
The pythagorean theorem applies to right triangles, which always have a 90 degree angle. Pythagorean identities are used to simplify trigonometric expressions/evaluate trig functions and to find the trig ratios in a right triangle.
Answer:
The Pythagorean identities are
[tex]sin^{2} x + cos^{2} x = 1\\1+ tan^{2} x = sec^{2} x\\1 + cot^{2} x = csc^{2} x\\where\\csc x = \frac{1}{sinx} \\cot x = \frac{cosx}{sinx} or \frac{1}{tanx} \\tan x = \frac{1}{cotx} or \frac{sinx}{cosx} \\sec x = \frac{1}{cotx}[/tex]
No matter what the value of x (the angle degree amount) is, sin²x+cos²x is equal to 1
When given a side length of a right triangle you will be able to use one of these identities to find the angle amount
4. Add
f(x)= 4x?+5x-1
g(x) = 2x2 + 5x+3
A. 3x² +6
Explanation:(f-g)(x) = f(x) -g(x) = (4x²+1) -(x²-5) . . . . . substitute the function definitions
... = 4x² +1 -x² +5 . . . . . . . . . . . eliminate parentheses
... = (4-1)x² +(1+5) . . . . . . . . . . . collect like terms
... = 3x² +6
Are EFG and HIJ similar?
Yo math hard. so 25 points, i really need it
Answer:
10 feet
Step-by-step explanation:
Given,
Volume of right cylinder = 2000 π cubic feet.
Length ( l ) = 20 feet
To find : Radius ( r )
Formula : -
Volume of right cylinder = πr²h
πr²h = 2000 π
Divide π on both sides,
r²h = 2000
r² = 2000 / h
r² = 2000 / 20
r² = 100
= 10 x 10
r²= 10²
r = 10 feet
Hence,
the radius is 10 feet.
What is the volume in cubic in, of a rectangular prism with a height of 19in, a width
of 17in, and a length of 18in?
Answer:
5,814 inches cubed
Step-by-step explanation:
lengthxwidthxheight=volume of a rectangular prism.
19 times 17 times 18 equals 5,814 inches cubed. It is cubed because it is a three-dimensionsal shape. Hope this helps!
It has been observed in one country, that 59 out of every 100 births is a baby with brown eyes. In 640 births how many brown eyed babies would you expect?
Answer:
377.6
Step-by-step explanation:
You do the ratio of 59/100 and then divide 640 by 100. Then you will get 6.4.
Multiply 59×6.4=377.6
If the area of a circle is 40 pi square cm, find the radius.
area equation is pi*r^2. divide by pi then square root. so the answer is the square root of 40
Answer:
√40 centimeters
Step-by-step explanation:
Given :
Area of circle = 40π cm²
===========================================================
Formula for area of a circle :
Area = πr²
===============================================================
Equating the given term and formula to find r :
⇒ 40π = πr²
⇒ r² = 40
⇒ r = √40 centimeters
Does anyone know the answer ASAP! Please and Thankyou!
Answer:
m=-2 and b=3
Step-by-step explanation:
One way to find slope is to use rise over run (most useful when there is a graph). First find any two points along the line where it intersects with a point on the grid. (1,1); (2,-1) and (3,-3) are some examples. Then count how many spaces vertically and then horizontally it takes to get to the next point. In this case it is two spaces down (rise) and 1 space right (run). So rise/run = 2/1 =2. That is your slope. Because it is pointing downwards or decreasing we know it is a negative slope.
The y-intercept is just where the line intercepts with the y-axis. In other words, when x=0 what does y equal? Here it is 3.
PLS PLS HELP HELP ME ITS EASY ITS FREE PONTS LOL
Answer:
58 degrees
Step-by-step explanation:
90-32
=58
~rere
Answer:
angle b measures 58°
Explanation:
As we know that, the sum of complementary angles is always equal to 90°.
Therefore,
angle a + angle b = 90°
32° + angle b = 90°
angle b = 90° - 32°
angle b = 58°
HOPE THIS HELPS AND HAVE A NICE DAY <3
Find the linear equations giving brainlest
Answer:
Step-by-step explanation:
Slope-intercept form of a linear equation: y = mx + b
m is the slopeb is the y-intercept - when x = 0Problem 17: y = -4x + 2
slope: -4y-intercept: (0, 2)Problem 18: y = 1/7x - 5
slope: 1/7y-intercept: (0, -5)Problem 19:
y = 1x + 3
slope: 1y-intercept: (0, 3)Hope this helps!
Clearly, we can tell that the equation is in slope intercept form.
Formula:
Slope intercept form: y = (m)x + (b) [m = Slope; b = y-intercept]
Let us compare the slope intercept form equation with the given equation to determine the slope and the y-intercept.
⇒ y = (m)x + (b) and y = -4x + 2
When comparing both equations, we can observe that:
"-4" takes the place as "m" "2" takes the place as "b"Therefore, the slope and the y-intercept are -4 and 2 respectively.
Determining the coordinates of the y-intercept;
Note: The y-intercept of the line ALWAYS has an x-coordinate of 0.
⇒ Coordinates of y-intercept: (0, y-intercept) ⇒ (0, 2)
Final answers:Slope = -4Coordinates of y-intercept = (0, 2)________________________________________________________
18) y = x/7 - 5Clearly, we can tell that the equation is in slope intercept form.
Formula:
Slope intercept form: y = (m)x + (b) [m = Slope; b = y-intercept]
Let us compare the slope intercept form equation with the given equation to determine the slope and the y-intercept.
⇒ y = (m)x + (b) and y = x/7 - 5
When comparing both equations, we can observe that:
"x/7" takes the place as "m" "-5" takes the place as "b"Therefore, the slope and the y-intercept are x/7 and -5 respectively.
Determining the coordinates of the y-intercept;
Note: The y-intercept of the line ALWAYS has an x-coordinate of 0.
⇒ Coordinates of y-intercept: (0, y-intercept) ⇒ (0, -5)
Final answers:Slope = x/7Coordinates of y-intercept = (0, -5)________________________________________________________
19) y = x + 3Clearly, we can tell that the equation is in slope intercept form.
Formula:
Slope intercept form: y = (m)x + (b) [m = Slope; b = y-intercept]
Let us compare the slope intercept form equation with the given equation to determine the slope and the y-intercept.
⇒ y = (m)x + (b) and y = 1x + 3 [x = 1x]
When comparing both equations, we can observe that:
"1" takes the place as "m" "3" takes the place as "b"Therefore, the slope and the y-intercept are 1 and 3 respectively.
Determining the coordinates of the y-intercept;
Note: The y-intercept of the line ALWAYS has an x-coordinate of 0.
⇒ Coordinates of y-intercept: (0, y-intercept) ⇒ (0, 3)
Final answers:Slope = 1Coordinates of y-intercept = (0, 3)How do you find out What is 3/8 x 4?
Answer: 1.5 (Decimal Form) or 3/2 (Exact Form)
Step-by-step explanation:
So what you do is put the whole number which in this case is 4, into a fraction so your problem will look like this:
3 / 8 * 4 / 1 =
Then, you will have to multiply all the numbers across:
3 * 4 = 12
8 * 1 = 8
Your answer will then look like this:
12 / 8
You will have to simplify with the greatest common factor which would be 4:
12 / 4 = 3
8 / 4 = 2
So, you get your answer:
3 / 2 or 1.5
Find the area of the shaded region. 10 ft 10 ft
Answer: Its 10 ft
Step-by-step explanation: because if one side is the number the other side is going to be the same number
please choose me as brainly
Use the graph below to answer the question that:
What are the amplitude, period, and midline of the function? (1 point)
Amplitude: 6; period: 2π; midline: y = −3
Amplitude: 6; period: π; midline: y = −3
Amplitude: 3; period: π; midline: y = −2
Amplitude: 3; period: 2π; midline: y = −2
The amplitude is equal to 3, the period is π midline y = -1.
For this case the amplitude is given by:
A = (l-5l + 1) / 2
A = 6/2
A = 3
The middle line is given by:
y = -1
What is the formula for period?The period of the function is given by,
T = l x2 - x1 l
T = l 0 - pi l
T = l - pi l
T = pi
Therefore the amplitude: 3; period is π; midline: y = -1.
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Find equation of a line with the given slope that passes through the given point. Write the equation in the form Ax + By = C.
M = -5, (-4,-8)
Answer:
5x + y = -28
Step-by-step explanation:
Hi there!
We're given that a line has a slope of -5 and contains the point (-4, -8)
We want to write the equation of this line in standard form
Standard form is given as ax+by=c, where a, b, and c are free integer coefficients, but a and b cannot be zero, and a cannot be negative
Before we write the equation in standard form however, we need to write it in slope-intercept form, which is y=mx+b, where m is the slope & b is the y intercept
As we are already given the slope, we can immediately plug that in for m in y=mx+b
y=-5x+b
Now to find b:
As the equation passes through the point (-4, -8), we can use its values to help solve for b
Substitute -4 as x and -8 as y:
-8 = -5(-4) + b
Multiply
-8 = 20 + b
Subtract 20 from both sides
-8 = 20 + b
-20 -20
__________
-28 = b
substitute -28 as b
y = -5x - 28
We found the equation in slope-intercept form, but remember, we want it in standard form
In standard form, both x and y are on the same side; so, let's move 5x to the other side; to do this, we need to add 5x to both sides
y = -5x - 28
+5x +5x
_________
5x + y = -28
Hope this helps!
Will make brainiest and you only have to answer at least one question.
The speed of sound in air at 20 degrees Celsius is 343 meters / second. What would the speed of sound be in miles per second?
The F-16 jet can fly at speeds up to 1,500 miles per hour. How many kilometers per hour can it fly?
Answer:
see below
Step-by-step explanation:
342 m/s * 1.09361329834 yd /m * 1 mile / 1760 yards = .21251 mi/s
1500 mi / hr * 1609.344 meters / mile * 1 km / 1000 m = 2414 km/hr
NEED help pls ty. Will mark brainliest
Help!! Which one is it?
Answer: Choices A and C
Reason:
A) The mode is 134 because the leaf 4 shows up the most for the stem of 13, and for any other stem as well. In other words, stem = 13 and leaf = 4 combine to the value 134 which shows up the most (a total of 5 times) compared to the other numbers. Therefore, we have a true statement.B) In the first row, the leaf 1 shows up three times. This leads to the number 101 (not 111) showing up 3 times. Therefore, statement B is false.C) This is also true. Visually the length of the leaves for the stem 13 is the longest. We have 8 leaves here which is the most of any other row.D) This is false. The leaf counts for the rows from top to bottom are: 6, 4, 0, 8, 2, 3. Those numbers add up to 23. This means there are 23 values (not 20) in the data set.What is the length of the missing side of this triangle?
13
?
9
A
250
В
22
С
15.81
Answer: C - 15.81
Step-by-step explanation:
pythagorean theorum: a^2 + b^2 = c^2
13^2 + 9^2 = c^2
169 + 81 = c^2
c^2 = 250
root both sides
c = 15.81
Assume the acceleration of the object is a(t) = −9.8 meters per second per second (Neglect air resistance.) A baseball is thrown upward from a height of 3 meters with an initial velocity of 7 meters per second. Determine its maximum height. (Round your answer to two decimal places.)
Answer:
height = 5.682 meters
Step-by-step explanation:
height = -9.8x^2 + 7x + 3
Find the axis of symmetry: x = -b/(2a)
a = -9.8 b = 7 c = 3
x = -7/(2*-9.8) = -7/-19.6 = .357 = x = +.357 secs is when max height occurs
Find the height, replace x with .561
height = -9.8(.357^2) + 11(.357) + 3
height = -9.8(.127) + 11(.357) + 3
height = -1.245+3.927+3
height = 5.682
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Find the area of the
parallelogram.
10.7 ft.
5.5 ft.
14 ft.
Answer: [tex]823.9ft^{2}[/tex]
Step-by-step explanation:
The formula for the area of a parallelogram is : [tex]l * w * h[/tex]
l = length
w = width
h = height
You did not specify which integer was which, but it does not matter as the order in which you multiply them together does not matter.
10.7 * 5.5 * 14 = 823.9
Since you are finding the area, you have to square the units; 823.9 ft^2
If you found this answer helpful, I would greatly appreciate it if you gave me brainliest :D.
Pls help me and show work! Thank you <3
Answer: 15
Step-by-step explanation:
By the alternate interior angles theorem, [tex]5x+9=84 \longrightarrow x=\boxed{15}[/tex]
Julieta was offered a job that paid a salary of $49,000 in its first year. The
salary was set to increase by 3% per year every year. If Julieta worked at the
job for 21 years, what was the total amount of money earned over the 21
years, to the nearest whole number?
Answer:
he will get a total of 41%
Julieta has a job for $49000 which increases at the rate of 3% per year, so the money earned after 21 years is $79870.
What is Simple interest?A quick and simple way to figure out interest on that money is to use the simple interest approach, which adds interest at the same rate for each daily cycle, and it is to the initial principal amount.
A way to figure out how much interest will be charged on an amount of money at a specific rate and for a specific duration of time is by using simple interest.
As per the information received from the question,
Principle amount, P = $49000
Rate, R = 3%
Time, T = 21 years.
SI = ($49000 × 3 × 21)/100
SI = 30870
So, the total amount earned in 21 years is $30870, and the total money he is having after 21 years is $79870.
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A cube has an edge length of 10 inches. What is its volume, in cubic in?
Answer: 1000
Step-by-step explanation: V=a to the 3rd power=10 to the 3rd power=1000
Prove that the bisector of the angle formed by a tangent and a chord drawn from the point of tangency divides the intercepted arc into two congruent arcs.
Answer:
Step-by-step explanation: