The standard deviation is 7.35.
What is standard deviation?Standard deviation is used to determine how the values in a group differs from the mean of the values in the group
In order to determine the standard deviation, take the following steps:
Determine the mean of the observation: (87 + 91 + 74 + 73 + 80 + 84 + 68 + 75) / 8 =79
Determine the difference between each value and the mean and then square the result:
(87 - 79)² + ( 91 - 79) ² + (74 - 79)² + (73 - 79)² + (80 - 79)² + (84- 79)² + (68 - 79)² +( 75- 79) ²
64 + 144 + 25 + 36 + 1 + 25 + 121 + 16 = 432
Determine the mean of the sum of the squared differences and then find the square root of the mean:
√432 / 8 = 7.35
To learn more about standard deviation, please check: https://brainly.com/question/26201837
#SPJ1
A craftsman wants to build this fiddle. He needs to know the area of the face of the fiddle. How could he use the measurements shown to find the area? Use your strategy to find the area of the face of
the fiddle.
Sam figures that he also earns about $2.50 in tips for each person he serves.
Sam works 4 hours on a particular day.
If n represents the number of people Sam serves that day, which of the
following functions could Sam use to figure E, his total earnings for the day?
An+ 10
Option c is the correct answer. Sam's total earning for the day is equal to
E(n) = 2.5n + 24
Given data
Sam earning per hour = $6
Sam earning on tips per person = $2.5
Sam's total hour per day =4
How to find the function for Sam's total earningsSam's daily earning excluding tips = Sam earning per hour * Sam's total hour per day
= $6 * 4 hours = $24
If n represents the number of people Sam serves that day, then Sam's earnings on tips in a day = $2.5 * n = $2.5n
The function for Sam's total earning is given by E(n)
E(n) = Sam's daily earning excluding tips + Sam's earnings on tips in a day
E(n) = $24 + $2.5n
this is re arranged as
E(n) = 2.5n + 24
Therefore we can say that Sam's total earning for the day is equal to
E(n) = 2.5n + 24
Read more on earnings calculation here: https://brainly.com/question/24951536
#SPJ1
Complete question
Sam is a waiter at a local restaurant where he earns wages of $6 per hour. Sam figures that he also earns about $2.50 in tips for each person he serves. Sam works 4 hours on a particular day. If n represents the number of people Sam serves that day, which of the following functions could Sam use to figure E, his total earnings for the day?
A. E(n) = 2.5n
B. E(n) = 4n + 10
C. E(n) = 2.5n + 24
can someone please help me
Answer:
It's B
Step-by-step explanation:
Step-by-step explanation:
[tex]\displaystyle\\12-15x > 22\\12-15x+15x > 22+15x\\12 > 22+15x\\12-22 > 22+15x-22\\-10 > 15x\\Divide\ both\ parts\ of \ the \ equation\ by\ 15:\\-\frac{10}{15} > x\\\\-\frac{5*2}{5*3} > x\\\\-\frac{2}{3} > x \\\\Thus,\\\\x < \frac{-2}{3}[/tex]
Answer: A
[tex]\displaystyle\\4\leq 3x+10 < 19\\\\4-10\leq 3x+10-10 < 19-10\\\\-6\leq 3x < 9\\\\Divide\ the\ inequality\ by \ 3:\\\\-2\leq x < 3\\\\Answer:\ -2\leq x < 3[/tex]
Question 9 of 10
How many dimensions does a point have?
OA. Zero
B. Two
C. Three
D. One
SUB
Answer: A
Step-by-step explanation: took the quiz got it right
Determine whether each relation is a function. (3,9),(11,21),(121,34),(34,1),(23,45)
Domain - { 3, 11, 121, 34 , 23 , } is domain of each relation is a function.
What is domain and range ?
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.How are the domain and range determined?
In order to identify the values of the independent variable x and acquire the domain, we simply solve the equation y = f(x). Simply put, x=g(y) will calculate the function's range after we identify g's domain (y).Domain - { 3, 11, 121, 34 , 23 , }
Range - { 9, 21 , 34 , 1 , 45 }
Learn more about domain
brainly.com/question/28135761
#SPJ4
Find each measure if m ∠ D G F=53 and m∠ A G C=40 .
m ∠ 4
Answer:
a
Step-by-step explanation:
i ink
A grocery store sells a bag of 6 oranges for $5.64. How much would it cost for 8
oranges?
The cost of 8 oranges is $7.52
How to find the cost of 8 oranges ?The first step is to find the cost of one orange
6 oranges cost 5.65
1 orange= 5.64/6
= 0.94
Therefore the cost of 8 oranges can be calculated as follows
= 0.94×8
= 7.52
Hence 8 oranges cost $7.52
Read more on cost here
https://brainly.com/question/9643143?referrer=searchResults
#SPJ1
Determine the distance between each pair of points. Then determine the coordinates of the midpoint M of the segment joining the pair of points.
B(√3, 2,2√2) and C(-2√3, 4,4√2)
The midpoint is at ([tex]-\sqrt{3} , 3 ,3\sqrt{2}[/tex])
In the given statement is
To find the midpoint of the line segment joining the pair of points
B(√3, 2,2√2) and C(-2√3, 4,4√2)
Midpoint:
The coordinates of the midpoint of a line segment are the average of the coordinates of the end points.
m = (A +B)/2
If we are given three points and we wish to find the midpoint of those points, we need to use the midpoint formula m =([tex]\frac{x_{1}+x_{2} }{2} , \frac{y_{1}+y_{2} }{2} , \frac{z_{1}+z_{2} }{2} ,[/tex] )
where:
(x1 , y1 ,z1) are the coordinates of the first point:
(x2 , y2 , z2) are the coordinates of the second point:
Now, We are given the three points B(√3, 2,2√2) and C(-2√3, 4,4√2)
Solving for the midpoint , we have,
m = ([tex]\frac{\sqrt{3}+(-2\sqrt{3} ) }{2}, \ \frac{2+4}{2}, \frac{2\sqrt{2} +4\sqrt{2} }{2}[/tex])
m = [tex]\frac{-2\sqrt{3} }{2} ,\frac{6}{2},\frac{6\sqrt{2} }{2}[/tex]
m = ([tex]-\sqrt{3} , 3 ,3\sqrt{2}[/tex])
Therefore, the midpoint is at( [tex]-\sqrt{3} , 3 ,3\sqrt{2}[/tex])
Learn more about Midpoint at :
https://brainly.com/question/28563066
#SPJ4
MATH HELP
PART 2 since the first one was to blurry
Using a system of equations, it is found that there were a total of 825,000 Arabic speakers, and the diagram is completed as follows:
Larger part: 639,000.Smaller part: 825,000 - 639,000 = 186,000.What is a system of equations?A system of equations is when multiple variables are related, and equations are built to find the values of each variable, according to the relations given in the problem.
For this problem, the variables are given as follows, considering the situation described:
Variable f: number of French Creole speakers.Variable a: number of Arabic speakers.There were 639,000 French Creole speakers, hence:
f = 639,000.
There were 186,000 more Arabic speakers than French Creole speakers, hence:
a = 186,000 + f = 186,000 + 639,000 = 825,000.
There were a total of 825,000 Arabic speakers, and the diagram is completed as follows:
Larger part: 639,000.Smaller part: 825,000 - 639,000 = 186,000.More can be learned about a system of equations at https://brainly.com/question/24342899
#SPJ1
a 12 pound can of lemonade cost 1.32 how much would a 16 ounce can of lemonade cost? please tell me the answer I need to get this right thx xo
Answer:
1.76.
Step-by-step explanation:
1.32 ÷ 12 = 0.11
16 x 0.11 = 1.76.
Hope this helped! ..・ヾ(。＞＜)シ xx
-3y + 2x = -7
8x - 3y = -1
Answer: If you're solving for the substitution method then your answer would be (1,3)
Step-by-step explanation:
Answer:
x = -4/5
y = 9/5
Step-by-step explanation:
-3y + 2x = -7
8x - 3y = -1
make one of the equations y=....
-3y + 2x = -7
-3y = -7 - 2x
y = (-7 - 2x)/3
now put (-7 - 2x)/3 where y is in the other equation
8x - 3y = -1
8x - 3((-7 - 2x)/3) = -1
8x - 1*(-7 - 2x) = -1
8x + 7 + 2x = -1
solve for x
8x + 7 + 2x = -1
8x+2x = -8
10x = -8
x = -8/10
x = -4/5
now put -8/10 in one of the equations to get what y is
-3y + 2x = -7
-3y + 2(-8/10) = -7
-3y - 16/10 = -7
-3y = -7 + 16/10
-3y = -70/10 + 16/10
-3y = -54/10
y = -54/10 * -1/3
y = 18/10
y = 9/5
Solve each equation. Check each solution. y/5 + y/2 = 7
The solution of the above equation y/5 + y/2 = 7 for y is 10.
According to the given question.
We have an equation y/5 + y/2 = 7.
Since, we have to solve the above equation y/5 + y/2 = 7 for y.
Therefore, the solution of the above equation for the above equation y/5 + y/2 = 7 is given by
y/5 + y/2 = 7
⇒ (2y + 5y)/10 = 7
⇒ 7y /10 = 7
⇒ 7y = 70
⇒ y = 70/7
⇒ y = 10
Hence, the solution of the above equation y/5 + y/2 = 7 for y is 10.
Find out more information about equation here:
https://brainly.com/question/10413253
#SPJ4
Mr. Sowers wants to purchase expo markers for his classroom. He has a budget of $35. A four pack of markers costs $5.49, including tax. Write and solve an inequality to solve for the number of packs of markers Mr. Sowers can purchase
The number of packs of markers Mr. Sowers can purchase is 6.4 packs.
The number of packs of markers Mr. Sowers can purchaseAccording to the task content, it is required that an inequality should be written and solved for the number of packs of markers Mr. Sowers can purchase.
Mr sower's budget = $35Cost of four pack of markers including tax = $5.49Number of packs of markers = x5.49x ≤ 35
divide both sides by 5.49x ≤ 35 / 5.49
x ≤ 6.375227686703096
Approximately
x ≤ 6.4
Therefore, the number of packs of markers Mr. Sowers can purchase is 6.4 packs
Learn more about inequality:
https://brainly.com/question/25275758
#SPJ1
Evaluate the function for f(x) = x + 3 and g(x) = x2 − 2. (f + g)(−8) (f + g)(−8) =
The value of the function (f + g)(−8) (f + g)(−8) for f (x) = x + 3 and g (x) = x² - 2 is 3249.
We are given the functions:
f(x) = x + 3
g(x) = x² − 2
Now,
(f + g) (−8) × (f + g)(−8)
= [ (f + g) (−8) ]²
Substituting the values of the functions, we get that:
=(x + 3 + x² - 2)² , where x = -8
= ( -8 + 3 + 64 - 2 )²
= ( -5 + 62)²
= (57) ²
= 3249
So, the value of the function (f + g)(−8) (f + g)(−8) for f (x) = x + 3 and g (x) = x² - 2 is 3249.
Learn more about function here:
https://brainly.com/question/25638609
#SPJ9
Use square roots to solve the equation x2 = –100 over the complex numbers. Select any solutions that apply.
The solution using the square root property for given complex numbers would be x = 10i where i is an imaginary number.
What is a complex number?A complex number is a combination of real values and imaginary values. It is denoted by z = a + ib,
where a, and b are real numbers and i is an imaginary number.
We have been given the equation of complex numbers x² = -100
Using the square roots property to solve the above equation
⇒ x² = -100
⇒ x = √-100
⇒ x = √(-1×10×10)
∵ i² = - 1 or i = √-1
Here i is an imaginary number.
⇒ x = 10(√-1)
⇒ x = 10i
Therefore, the solution of given complex numbers would be x = 10i where i is an imaginary number.
Learn more about the complex numbers here:
brainly.com/question/19007885
#SPJ1
let f(x)=4x^2+5 and g(x)=2x-4. find f(x)+g(x)
Answer:
[tex]4x^2+2x+1[/tex]
Step-by-step explanation:
[tex]f(x)=4x^2+5\\g(x)=2x-4\\\\f(x)+g(x)=(4x^2+5)+(2x-4)\\\\4x^2+5+2x-4\\\\4x^2+2x+1[/tex]
Six times the sum of a number and negative one is the same as two more than eight times the number
Answer:-5/4
Step-by-step explanation:
Put the numbers in order from smallest to largest.
Answer:
3.24x10^-5, 5.48x10^-2, 1.2x10^1, 4.68x10^6, 8.34x10^6
Step-by-step explanation:
3.24 x 10^-5 = 0.0000324
5.48 x 10^-2 = 0.0548
1.2 x 10^1 = 12
4.68 x 10^6 = 4680000
8.34 x 10^6 = 8340000
Three bands are going to play in a concert. In how many different orders can the bands play
Answer:
6
Step-by-step explanation:
Let's call the bands by numbers :
So we have Band 1,2 and 3
The orders can be :
1,2,3
2,3,1
3,1,2
1,3,2
3,2,1
2,1,3
so there must be 6 different orders
Another method of doing this is to called product rule of counting :
3 × 2 × 1 = 6
Hope this helped and have a good day
What is the property of 10+(-10)=0
Use the Distance Formula to find the distance between the pair of points.
A(0,0), B(15,20)
Using the distance formula, the distance between the pair of points A(0,0) and B(15,20) is 25 units
Given,
The points = A(0,0) and B(15,20)
We know the distance formula = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2} }[/tex]
Substitute the values in the equation
The distance = [tex]\sqrt{(15-0)^{2}-(20-0)^{2} }[/tex]
[tex]=\sqrt{15^{2}+20^{2} } \\=\sqrt{225+400}\\ =\sqrt{625}[/tex]
=25 units
Hence, using the distance formula, the distance between the pair of points A(0,0) and B(15,20) is 25 units.
Learn more about distance here
brainly.com/question/24485622
#SPJ4
The graph of function f is shown.
Function g is represented by the equation.
g(x) = 9(1/3)^x - 4
Which statement correctly compares the two functions?
OA. They have the same y-intercept but different end behavior.
OB. They have different y-intercepts but the same end behavior.
OC. They have different y-intercepts and different end behavior.
OD. They have the same y-intercept and the same end behavior.
Answer:
Step-by-step explanation:
B) is correct
Write an equation of each line.slope =0 ; through (4,-2)
The equation of the line, with slope equal to 0 and passing through the point located at (4 , -2), is y = -2.
The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.
The standard form of an equation of a line is expressed as ax + by = c, where a and b, if all possible must be integers, are the coefficients of variable x and y, respectively, and c is a constant. Meanwhile, slope-intercept form is given by the formula y = mx + b, where m is the slope of the line and b is the y- intercept. On the other hand, given the slope m and a point on the line (x , y), we can express the equation in point-slope form, (y - y1) = m(x - x1).
Using the point slope form, plug in the values to set up the equation.
(y - y1) = m(x - x1)
where m = 0 and (x1 , y1) = (4 , -2)
(y - -2) = 0(x - 4)
(y + 2) = 0
y = -2
In slope-intercept form, the equation of the line is:
(y + 2) = 0
y = -2
In standard form, the equation of the line is:
y = -2
To learn more about equation of line: https://brainly.com/question/19417700
#SPJ4
Find the measures of the sides of ΔX Y Z and classify
triangle by its sides.
X(-4,-2), Y(-3,7), Z(4,-2)
The measures of the sides of ΔXYZ are XY = 9.1, YZ = 11.4, XZ = 8. and the triangle XYZ must be an acute triangle
In this questions we have been given the the coordinates of the triangle XYZ.
X(-4, -2), Y(-3, 7), Z(4, -2)
We need to find the measures of the sides of ΔXYZ .
We find the the measures of the sides using distance formula.
XY = √[(7 + 2)² + (-3 + 4)²]
XY = √[9² + 1²]
XY = √(81 + 1)
XY = √(82)
XY = 9.1
Now side YZ
YZ = √[(-2 - 7)² + (4 + 3)²]
YZ = √[(-9)² + (7)²]
YZ = √81 + 49
YZ = √130
YZ = 11.4
And the length of side XZ would be,
XZ = √[(-2 + 2)² + (4 + 4)²]
XZ = √0 + 8²
XZ = 8
We find the sum of the squares of the two smaller sides, and compare the sum to the square of the largest side.
the sum of the squares of the two smaller sides is,
= 8² + 9.1²
= 64 + 82.81
= 146.81
= 12.12²
And 11.4² = 129.96
Since the sum of the squares of the two smaller sides is greater than the square of the largest side, the triangle must be an acute triangle.
Therefore, the measures of the sides of ΔXYZ are XY = 9.1, YZ = 11.4, XZ = 8. and the triangle XYZ must be an acute triangle
Learn more about the triangle here:
https://brainly.com/question/2456591
#SPJ4
a. A circle contains the points (0,0),(6,8) , and (7,7) . Find its equation by solving a system of three equations.
Using system of three equations, the equation of the circle that contains the points (0 , 0), (6 , 8), and (7 , 7) is (x - 3)^2 + (y - 4)^2 = 25.
The standard form of the equation of circle is given by (x - h)^2 + (y - k)^2 = r^2, where (h , k) is the location of the center and r is the radius of the circle.
Substituting the values of the x and y coordinates of each point to the standard form of the equation of a circle, the three system of equations are:
(x - h)^2 + (y - k)^2 = r^2
(0 , 0) : (0 - h)^2 + (0 - k)^2 = r^2
(6 , 8) : (6 - h)^2 + (8 - k)^2 = r^2
(7 , 7) : (7 - h)^2 + (7 - k)^2 = r^2
Expanding these equations,
(0 , 0) : h^2 + k^2 = r^2 (equation 1)
(6 , 8) : 36 - 12h + h^2 + 64 - 16k + k^2 = r^2 (equation 2)
(7 , 7) : 49 - 14h + h^2 + 49 - 14k + k^2 = r^2 (equation 3)
Subtracting equation 1 from equation 2 and 3.
36 - 12h + h^2 + 64 - 16k + k^2 = r^2
- (h^2 + k^2 = r^2)
36 - 12h + 64 - 16k = 0
100 - 12h - 16k = 0
12h + 16k = 100
Dividing both sides by 4,
3h + 4k = 25 (equation 4)
49 - 14h + h^2 + 49 - 14k + k^2 = r^2
- (h^2 + k^2 = r^2)
49 - 14h + 49 - 14k = 0
98 - 14h - 14k = 0
14h - 14k = 98
h + k = 4 (equation 5)
h = 7 - k
Substitute h = 7 - k to equation 4 and solve for k.
3h + 4k = 25 (equation 4)
3(7 - k) + 4k = 25
21 - 3k + 4k = 25
k = 25 - 21
k = 4
Substitute the value of k to equation 5 and solve for h.
h = 7 - k (equation 5)
h = 7 - 4
h = 3
Substitute the value of h and k to equation 1 and solve for r.
h^2 + k^2 = r^2 (equation 1)
3^2 + 4^2 = r^2
9 + 16 = r^2
r^2 = 25
r = 5
Hence, the equation of the circle that contains the points (0 , 0), (6 , 8), and (7 , 7) is (x - 3)^2 + (y - 4)^2 = 25.
Learn more about equation of a circle here: brainly.com/question/14150470
#SPJ4
Below are graphs of functions over the interval [-4, 4]. Find the following for each function:
The domain
Zeros of the function
Intervals where the function is positive and intervals where it is negative
The positive interval is (0,2) and the negative range is calculated as (-4,0) and (2,4).
A graph is used to show the relationship between variables on a coordinate plane.
The domain of the function is [-4,4].
The zeros are: -2,0 and 2.
The positive interval is between (0,2).
The range of negative values is (-4,0) to (2,4). This is the set of x values in the graph. The graph demonstrates that the x value is between -4 and 4.
Thus, the domain is [-4,4]. The zeros of the function: Where it crosses the x- axis. The graph touches the x-axis when it is at -2,0 and 2. As a result, the function has the following zeros:-2,0 and 2.
Positive interval:
On the graph, positive values range from x = 0 to x = 2.
Consequently, the positive interval is (0,2).
Negative duration:
This is the x values when the function gives a negative result.
The graph shows negative values from x = -4 to x = 0, then from x = 2 to x = 4.
The negative range is therefore (-4,0) and (2,4).
Hence, the positive interval is (0,2) and the negative range is (-4,0) and (2,4).
To learn more about functions, visit:
brainly.com/question/28193994
#SPJ1
Pre Algebra 1/10+x=1/5 view attachment for more
Answer:Your answer would be x=1/10
Step-by-step explanation:
What equation/inequality represents the following scenario? Product of two consecutive odd integers is less than 76, where b is the first odd integer
a) n(n+2)> with a line under 76
b) n(n+1)>76
c) n(n+1)<76
d) n(n+2)<76
The two consecutive odd integers are less than 76 is the numbers are 37 and 39.
Any integer's reverse and sum are both equal to zero.
A positive sum results from adding two positive numbers, whereas a negative sum results from adding two negative integers.
Take the absolute value of each integer, then subtraction, to obtain the total of a positive and a negative integer.
Let two consecutive odd numbers be x and x+2
According to question
⇒ x........... equation (1)
⇒ x+2........equation (2)
by adding equation 1 and 2
⇒ x+x+2=76
⇒ 2x+2=76
⇒ 2x=76-2
⇒ 2x=74
⇒ x=74/2
⇒ x=37
We apply the value of x=37 in equation (2)
⇒ x+2
⇒ 37+2
⇒ 39
so, the numbers are 37 and 39.
Therefore, the two consecutive odd integers are less than 76 is the numbers are 37 and 39
To learn more about Integers, visit
brainly.com/question/21444542
#SPJ1
Five of seven kittens in a litter had black markings. Write a simplified ratio for each of the following:
Kittens without black markings to kittens with black markings: 2 to 5
s: 2 to 7
2 t
Kittens without black markings to total kittens:
Kittens with black markings to total kittens: 5 to 7
Kittens without black markings to kittens with black markings: 2:5
Kittens without black markings to total kittens: 2:7
Kittens with black markings to total kittens: 5:7
Determine whether the sequence converges or diverges. if it converges, find the limit. if it diverges write none. a_n = (9 3 n**2)/(n 8 n**2)
According to the question, determine whether the given sequence converges or diverges.
The given sequence is: [tex]a(n) = \frac{9+3n^{2} }{n+8n^{2} }[/tex]
Taking limits tends to infinity on both sides. And dividing numerator and denominator by [tex]n^{2}[/tex]
Therefore, the final term can be re-written as: [tex]a(n) = \frac{9+3n^{2} }{n+8n^{2} } = \frac{3}{8}[/tex].
Hence, the given sequence converges and the limit is [tex]\frac{3}{8}[/tex].
What converges and diverges in limits?
When the limits of the sequence exist and have finite value that means the sequence is a convergent sequence. The calculated value is a real number. And the tem divergence means limits do not exist.
To learn more about the converges and diverges in limits from the given link:
https://brainly.com/question/15825587
#SPJ4
