In the question, it's σ = 10 and not μ = 10.
Answer:
A) σ_x = 1.4142
B) σ_x = 1.4135
C) σ_x = 1.4073
D) σ_x = 1.343
Step-by-step explanation:
We are given;
n = 50
σ = 10
A) Formula for standard error of the mean for infinite size is;
σ_x = σ/√n
Thus;
σ_x = 10/√50
σ_x = 1.4142
B) When population is finite, we use correction factor and thus, we have;
σ_x = [√((N - n)/(N - 1)] × σ/√n
N = 50,000
Thus;
σ_x = [√((50000 - 50)/(50000 - 1)] × 10/√50
σ_x = 1.4135
C) N = 5000
Thus;
σ_x = [√((5000 - 50)/(5000 - 1)] × 10/√50
σ_x = 1.4073
D) N = 500
Thus;
σ_x = [√((500 - 50)/(500 - 1)] × 10/√50
σ_x = 1.343
64 is what percent of 80
Answer:
80%
Step-by-step explanation:
x : 100 = 64 : 80
x = (100 * 64)/80 = 80%
Answer:
80%
Step-by-step explanation:
Is means equals and of means multiply
64 = P * 80
Divide each side by 80
64/80 = P
.8 = P
Change to percent form by multiplying by 100
80% = P
HELP ASAP 35 POINTS
Answer:
Given function:
y = -x² + 6Fill in the table by substituting the value of x:
x = 0 ⇒ y = - 0² + 6 = 6x = 1 ⇒ y = - 1² + 6 = 5x = -1 ⇒ y = -(-1)² + 6 = 5x = 2 ⇒ y = -2² + 6 = 2x = -2 ⇒ y = -(-2)² + 6 = 2The graph is attached
Indicate by choosing the correct option
whether the following statement is true or
false:
An electronic funds transfer made by a
debtor of HS Stores on 12 June 20.1, is
an example of an item that will appear
on the bank statement of HS Stores but
not in the cash receipts journal of HS
Stores for June 20.1.
True
False
In the figure below, YZA and YZX are right angles, XYZ and AYZ are
congruent, and XZ = 10. What is the length of ZA ?
Answer:
10
Step-by-step explanation:
Triangles AYZ and XYZ are congrunt, therefore AZ = XZ = 10
2. Find the Volume of this mailbox outline.
3 cm
20 cm
5 cm
Rectangle Given:1=15 m, w=6m,A=
Answer:
[tex]90m^2 and 144 m^2[/tex]
Step-by-step explanation:
Given :
Length of the rectangle (l)=15m
Width of the rectangle (w)= 6 m
Area of the rectangle can be calculated as :
[tex]A=l*w\\A=(15)(6)\\A=90 m^2[/tex]
Now,
Side of square (s)=12 m
Area of the square can be find:
[tex]A=s^2\\A=12^2\\A=144 m^2[/tex]
The circle below has a radius of 10 centimeters. What is the area of the shaded
region?
10 cm
120
A. 10 square centimeters
B. 50 square centimeters
C. 3 square centimeters
D. 100 3 square centimeters
The area of the shaded segment is 100/3π square centimeter
What is a area?
Area is nothing but the surface bounded by the object in 2D.
What is a segment?
A part of a line or curve between two points In circle we can say segment is nothing but a region or area cutoff from the circle by chord.
What is a segment area?
Area bounded by a segment. Area of segment has a formula (θ/360°)πr²
According to the question
θ=120°
radius =10cm
area of segment = (120°/360°)π(10²)
120°/360° =0.333
10²=100
0.333×π×100
33.3π or (100/3)π
Thus area of the shaded segment is 33.3π or (100/3)π square centimeters
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Can someone please answer this question for me with explanation bc im kinda having a hard time
Answer:
Step-by-step explanation:
First we find out the area of circle, and then subtract the area of triangle from it to find the area of the shaded region
Area of Circle
Here, r=radius
area of circle= π×r²
= π × 5² (radius=half of diameter)
= 25π
= 78.54cm²
Area of Triangle
Here, b=base, h=height
area of triangle = [tex]\frac{1}{2\\}[/tex]×b×h
= [tex]\frac{1}{2}[/tex]×8×6
= 24cm²
Area of shaded region= area of circle - area of triangle
= 78.54 - 24
= 54.54
≈ 54.5cm² [Ans]
Qs =-20+ 3p
Qd = 220- 5p
Answer:
The answer is below
Step-by-step explanation:
What is the equilibrium price and the quantity for the market whose quantity demanded and quantity supplied are given: Qd=220-5P and Qs= -20+3P?]
Solution:
The equilibrium price of a goods is the price at which the quantity of goods supplied is equal to the quantity of goods demanded. The equilibrium price can be determined by the supply and demand curve. The equilibrium price is the price at which the point of intersection of the supply and demand curve.
At equilibrium:
[tex]Q_s=Q_d\\\\-20+3p=220-5p\\\\220+20=3p+5p\\\\8p=240\\\\p=30[/tex]
The equilibrium price is 30.
The equilibrium quantity = 220 - 5p = 220 - 5(30) = 70
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Answer:we had in dog C criminal seyyyyy and hbu have a dog in a car accident in a dog and he got to the house to go back and he said
Step-by-step explanation:
What Is the length or segment of XY?
Answer choices are
4.5
6.70
9
7.28
Alexandra plays poker with seven friends. Each of the eight players starts with 60 chips, but players take chips from one another as play progresses. The goal of the game is to win all of the chips. A player drops out of the game if she loses all her chips to other players in the game. After five players have dropped out of the game, what is the average number of chips each of the remaining players has
Answer:
160 chips
Step-by-step explanation:
Given
[tex]n = 8[/tex] --- players
[tex]c = 60[/tex] --- chips per player
First, calculate the total chips
[tex]Total = n * c[/tex]
[tex]Total = 8 * 60[/tex]
[tex]Total = 480[/tex]
After 5 players are out; there are 3 players remaining in the game
So, the average number of chip with each of the remaining player is:
[tex]Average = \frac{Total}{n-5}[/tex]
[tex]Average = \frac{480}{8-5}[/tex]
[tex]Average = \frac{480}{3}[/tex]
[tex]Average = 160[/tex]
ASAP PlS First answer mark as Brainlist.
Answer:
9 servings
Step-by-step explanation:
A project to build a new bridge seems to be going very well since the project is well ahead of schedule and costs seem to be running very low. A major milestone has been reached where the first two activities have been totally completed and the third activity is 60 percent complete. The planners were expecting to be only 50 percent through the third activity at this time. The first activity involves prepping the site for the bridge. It was expected that this would cost $1,420,000 and it was done for only $1,300,000. The second activity was the pouring of concrete for the bridge. This was expected to cost $10,500,000 but was actually done for $9,000,000. The third and final activity is the actual construction of the bridge superstructure. This was expected to cost a total of $8,500,000. To date they have spent $5,000,000 on the superstructure. Calculate the schedule variance, schedule performance index, and cost performance index for the project to date.
Answer:
Scheduled Variance = $850,000.00
Schedule Performance Index = 1.05
Cost Performance Index = 1.11
Step-by-step explanation:
Note: See the attached excel file for the calculations of Total Actual Cost to Date, Budgeted Cost of Work Scheduled (BCWS), and Budgeted Cost of Work Performed (BCWP).
From the attached excel file, we have:
Total Actual Cost to Date = $15,300,000
Total BCWS = $16,170,000
Total BCWP = $17,020,000
Therefore, we have:
Scheduled Variance = Total BCWP - Total BCWS = $17,020,000 - $16,170,000 = $850,000.00
Schedule Performance Index = Total BCWP / Total BCWS = $17,020,000 / $16,170,000 = 1.05
Cost Variance = Total BCWP - Total actual cost to date = $17,020,000 - $15,300,000 = $1,720,000
Cost Performance Index = Total BCWP / Total actual cost to date = $17,020,000 / $15,300,000 = 1.11
How do we check if a solution is extraneous? Use these equations as examples to help you explain:
Please check my function,
Tell my function right or not, And if not please tell me how to correct
Answer:
yes, i think it is correct :)
Step-by-step explanation:
Julio wants to purchase a truck. The purchase price of the truck is $ 38 , 000.00 The dealership will allow him to pay cash or finance the truck for a down payment of $ 5 , 000.00 and 60 monthly payments of $ 750.00. Julio chooses to finance the truck. Answer the following questions. a) What is the amount financed? b) What is the total amount of monthly payments? c} What is the amount of the finance charge?
Answer:
1000000 kexvixevixev84fvi4fddeyhxe
Help pls help help help hep
Step-by-step explanation:
just try out some values to get a clue
f(0)<= -|0+1|+1 = 0
okay, that value is true for all graphs
let's try another
f(1) <= -|1+1|+1 = -1
for x=1 the inequality only applies for a region less or equal to -1
B and D are clearly out. C covers just to much above
Only A remains as an option
note that |-5| is just 5. this notation is to say "how far away from 0. -5 is just 5 units away from zero.
in terms of calculating it, it makes everything inside it positive (distance from zero is never negative)
Answer:
A
Step-by-step explanation:
The atmosphere of a certain planet is made up of many
elements. What part of the atmosphere is made up of Element
2?
I’ll make you a brilliant answer plsss help
Need help will give brainliest
Answer:
Step-by-step explanation:
sorry i don't know how to draw the diagram,then i can explain better.
9/x=x/27
x²=9×27=9×9×3
x=9√3
In order to safely land, the angle that a plane approaches the runway should be no more than 15°. A plane is approaching Ottawa Macdonald–Cartier International Airport to land. It is at an altitude of 500 m and a horizontal distance of 3 km from the start of the runway. At what angle is the plane approaching and is it safe for the plane to land?
9514 1404 393
Answer:
9.5°, yes
Step-by-step explanation:
The relevant trig relation is ...
Tan = Opposite/Adjacent
The distance opposite the angle of elevation is the plane's height, 500 m. The distance adjacent to the angle of elevation is the horizontal distance to the plane, 3 km = 3000 m. Then the angle is found from ...
tan(α) = 500/3000 = 1/6
α = arctan(1/6) ≈ 9.46°
The plane is approaching at an angle of 9.46°. It is safe to land, since that angle is less than 15°.
_____
Additional comment
The usual descent angle for most commercial air traffic is 3°. Some airport geography demands it be different (steeper). A higher descent angle can put undue stress on the landing gear.
Which statement describes the solution set of function f? f(x)= 3x^2 - 4x - 2
Answer:
Vertex form
( 2 /3 , − 10 /3 )
x and y intercepts
Y intercept ( 2 + √ 10 /3 , 0 ) , ( 2 − √ 10/ 3 , 0 )
X intercept ( 0 , − 2 )
Step-by-step explanation:
The correct statement that describes the solution set of the function f is Two real solutions. So, correct option is C.
To determine the solution set of the function f(x) = 3x² - 4x - 2, we can consider the nature of the solutions by examining the discriminant of the quadratic equation.
The discriminant, denoted as Δ, is calculated as b² - 4ac, where a, b, and c are the coefficients of the quadratic equation ax² + bx + c = 0.
In this case, the quadratic equation is 3x² - 4x - 2 = 0. Comparing it to the general form, we have a = 3, b = -4, and c = -2.
The discriminant is given by Δ = (-4)² - 4(3)(-2) = 16 + 24 = 40.
Based on the value of the discriminant (Δ = 40), we can determine the nature of the solutions:
If Δ > 0, there are two distinct real solutions.
If Δ = 0, there is one real solution.
If Δ < 0, there are two complex solutions.
Since Δ = 40, which is greater than 0, the correct statement that describes the solution set of the function f is:
C- Two real solutions.
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Complete question is:
Which statement describes the solution set of function f? f(x) = 3x² - 4x - 2
A- One real solution and one complex solution
B- Two complex solutions
C- Two real solutions
D- One real solution
Draw TWO lines in each 90 degree angle, cutting each 90 into three equal angles.
Answer:
I think the circles would be cut into eighths then.
Step-by-step explanation:
I hope this helps you! :D
Can someone answer this I’ll give brainliest
Answer:
7/13
Step-by-step explanation:
Arrange the numbers so that the number of girls in year 10 is the numerator, and the total number of girls is the denominator. (140/260) Simplify this by dividing both numbers by 20.
does anyone know the answer?
Answer:
is it correct please tell
-2.666
what are the solutions of the equation x^4+3x^2+2=0? use u substitution to solve
Answer:
x=1, x=-1
Step-by-step explanation:
Answer:
The statement is false for any value of x. ( SEE IMAGE BELOW)
Step-by-step explanation:
Since the left- hand side is always positive, the statement is false for any value of x
10. Fill in the blank to make an equal problem 2,165 + ______ + 1,678 = 6,414
Answer:
2,165 + 2571 + 1,678 = 6,414
Step-by-step explanation:
We can say;
=> 2,165 + unknown number + 1,678 = 6,414
So let's add like terms first;
=> 3,843 + unknown number = 6,414
=> unknown number = 6,414 - 3,843
=> unknown number = 2571
Hope this helps!
Answer:
2571
Step-by-step explanation:
Let x be the blank.
2165 + x + 1678 = 6414
3843 + x = 6414 (combine like terms)
x = 2571
Help me solve this please !
Answer:
The answer is D, 14. This is because those bars are asking for absolute value, meaning you simply change any negative to a positive and give its value in general instead of as a negative or positive
NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at Math.No guessing please.
The fence around a circular garden is 18 feet long.What is the area of the garden to the nearest square foot?Use 3.14 for pi.
Type the answer in the box
________ square feet
f(x)=5^x+1 what’s the rate of change between x=0 and x=4
Answer:
156
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FunctionsFunction NotationAverage Rate of Change: [tex]\displaystyle \displaystyle \frac{f(b) - f(a)}{b - a}[/tex]Step-by-step explanation:
Step 1; Define
Identify
f(x) = 5ˣ + 1
Interval x [0, 4] →b = 4, a = 0
Step 2: Find Rate of Change
Substitute in variables [Average Rate of Change]: [tex]\displaystyle \displaystyle \frac{f(4) - f(0)}{4 - 0}[/tex][Average Rate of Change] Substitute in x [Function f(x)]: [tex]\displaystyle \displaystyle \frac{(5^4 + 1) - (5^0 + 1)}{4 - 0}[/tex](Parenthesis) Evaluate exponents: [tex]\displaystyle \displaystyle \frac{(625 + 1) - (1 + 1)}{4 - 0}[/tex](Parenthesis) Add: [tex]\displaystyle \displaystyle \frac{626 - 2}{4 - 0}[/tex][Fraction] Subtract: [tex]\displaystyle \displaystyle \frac{624}{4}[/tex]Divide: [tex]\displaystyle \displaystyle 156[/tex]