Answer
is a vertical line, as shown above. The slope of the line is undefined.
Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below.
Find the coefficient of variation for each of the two sets of data, then compare the variation.
Bank A (single line): 6.6, 6.7, 6.7, 6.8, 7.0, 7.3, 7.5, 7.7, 7.8, 7.8Bank B (individual lines): 4.0, 5.5, 5.8, 6.2, 6.6, 7.6, 7.7, 8.5, 9.4, 9.7(Round to one decimal place as needed.)
Answer:
CV of Bank A = 6.4
CV of Bank B = 7.1
CV of Bank B is more than CV of Bank A
Step-by-step explanation:
Bank A
6.6, 6.7, 6.7, 6.8, 7.0, 7.3, 7.5, 7.7, 7.8, 7.8
[tex]Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean = \frac{6.6+6.7+6.7+6.8+7.0+7.3+7.5+7.7+7.8+ 7.8}{10}\\Mean =7.19[/tex]
Standard deviation =[tex]\sqrt{ \frac{\sum(x-\bar{x})^2}{n}}=0.461[/tex]
[tex]CV = \frac{\sigma}{\bar{x}} \times 100\\CV = \frac{0.461}{7.19} \times 100=6.4[/tex]
Bank B
4.0, 5.5, 5.8, 6.2, 6.6, 7.6, 7.7, 8.5, 9.4, 9.7
[tex]Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean = \frac{4.0+5.5+5.8+6.2+6.6+ 7.6+ 7.7+8.5+9.4+9.7}{10}\\Mean =7.1[/tex]
Standard deviation =[tex]\sqrt{ \frac{\sum(x-\bar{x})^2}{n}}=1.718[/tex]
[tex]CV = \frac{\sigma}{\bar{x}} \times 100\\CV = \frac{1.718}{7.1} \times 100=24.2[/tex]
CV of Bank A = 6.4
CV of Bank B = 7.1
CV of Bank B is more than CV of Bank A
Whole numbers and the counting numbers less than zero are called ______.
Answer:
integers
Step-by-step explanation:
integers include whole numbers and negative non fractions
Can someone help me with this, I’ve been putting the right answer, but it won’t work. I need help.
X
7.
14
11
-10
у
-3
-9
-4
-3
15
O Function
O Not a Function
Answer:
function
Step-by-step explanation:
im not 100% sure
HELP HELP HELP HELP HELP HELP HELP HELP HELP write a brief summer about inequalities on a number line .
THIS IS NOT W
Step by step
Determine whether the graph represents a proportional relationship. (4 points) A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 15. Four points are shown on the graph on ordered pairs 0, 2 and 1, 6 and 2, 10 and 3, 12. These points are joined by a line. The label on the x-axis is Number of cars. The title on the y-axis is Number of wheels. Group of answer choices Yes, it is a proportional relationship because the graph goes through the origin Yes, it is a proportional relationship because the graph is a straight line No, it is not a proportional relationship because the graph is not a straight line No, it is not a proportional relationship because the graph does not go through the origin
Answer:
No, it is not a proportional relationship because the graph does not go through the origin
Step-by-step explanation:
I belive the is the answer, I took this quiz as well. The line is straight but it does not go throught the origan.
Write a number patttern that follows the rule subtract 6 and also has all odd numbers. the number patttern should be at least 4 numbers long
I had to edit my answer bc it was wrong ignore this block teehee sorry
Answer:
99, 93, 87, 81
Step-by-step explanation:
Light bulbs cost £2.90 each.
Yasmin buys as many as she can with £20.
How much change should she get?
Answer:
$2.60
Step-by-step explanation:
first you need to see how many time 2.90 goes into 20 it is 6, so then you multiply 2.90 times 6 and get 17.40. Lastly you subtract 17.40 from 20 to get 2.60
Hope this helps
Answer:
$2.60
Step-by-step explanation:
Papa John’s charges $10.00 per pizza. Which equation represents this scenario?
y = k/x
y =10x + 8
y = 10
y = 10x
Answer:
The answer is y=10x. Let x represent the pizzas. The reason we use x is that we don't know how many PizzAs they're talking about, but we do know that EACH pizza cost 10$
Simplify -2 1/9 -(-4 1/3)
Answer:
[tex]\frac{20}{9}[/tex] or [tex]2 \frac{2}{9}[/tex]
Lawrence middle school is painting a circle on their playground with a radius of 7 feet what will be the total area of the circle in square feet
Use TT = 3.14, and round your answer to the nearest hundredth
Answer:
The answer will be 153.9
Step-by-step explanation:
multiply 3.14 and 7 square and that is your answer
The ratio of the interior angles of a triangle is 3: 3:4. What are the angle
measures
Answer:
3X=54°
3X=54°
4X=72°
Step-by-step explanation:
3X+3X+4X=180°(SUM OF INTERIOR ANGLES OF A TRIANGLE ADOPTS TO 180°)
10X=180°
X=18°
THERFORE;
3X=18 * 3 = 54°
4X=18 * 4 = 72°
The sum of all the interior angles of a triangle is 180°. The measure of the angles are 54°, 54° and 72°.
What is a Triangle ?A triangle is geometric figure bounded by three straight lines.
The sum of all the interior angles of a triangle is 180°.
In a triangle, the length of the longest side is always less than the sum of the length of the other two sides.
In the given figure, the angles of a triangle are 3x, 3x and 4x.
Since the sum of interior angles is 180°,
3x + 3x + 4x = 180
x = 18
Thus the angles can be obtained by substituting the value of x as follows,
3x = 3 × 18 = 54°
3x = 3 × 18 = 54°
And, 4x = 4 × 18 = 72°.
Hence, the angles of the given triangle are 54°, 54° and 72°.
To know more about Triangles click on,
https://brainly.com/question/2773823
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What is the solution to the system of linear equations? Show your work.
a long steel beam has a length of twenty-five meters on a cold day when the temperature is 0*c. what is the length of the beam on a hot day when t
Complete question is;
A long steel beam has a length of twenty-five meters on a coldday when the temperature is 0°C. What is the length of the beam on a hot day when T = 40°C. (α_steel = 1.1 × 10^(-5) °/C)
a. 25.00044 m
b. 25.0044 m
c. 25.011 m
d. 25.044m
e. 25.11 m
Answer:
Option C: 25.011 m
Step-by-step explanation:
We are given;
Initial Temperature; T1 = 0°C
Final Temperature; T2 = 40°C
Coefficient of linear expansion of steel; α_steel = 1.1 × 10^(-5) °/C
Initial length; L_o = 25 m
We know that formula for change in length is;
ΔL = LαΔT
Plugging in the relevant values, we have;
ΔL = 25 × 1.1 × 10^(-5) × (40 - 0)
ΔL = 0.011 m
Thus, new length is;
L1 = L_o + ΔL
L1 = 25 + 0.011
L1 = 25.011
Find the value of expression a^5−a^2+a^3 for a=−2.
Answer:
-44
Step-by-step explanation:
first take -2 to the fifth power (-32) , after that take -2 to the second power (4) and then take -2 to the third power (-8). Subtract -32 and 4, then add -8 and you get your answer.
6. Solve the problem. A carousel has a radius of 18 feet and takes 31
seconds to make one complete revolution. What is the linear speed of
the carousel at its outside edge? Express the answer in feet per second.
If necessary, round the answer to two decimal places.
Answer:
v = 3.64 ft/s
Step-by-step explanation:
Given that,
Radius of a carousel, r = 18 feet
It takes 31 seconds to complete revolution.
We need to find the linear speed of the carousel at its outside edge. Distance covered is equal to the circumference of the circle.
d = 2πr
d = 2π × 18 = 113.09 feet
Let v is the linear speed. It can be given by :
[tex]v=\dfrac{D}{t}\\\\v=\dfrac{113.09}{31}\\\\v=3.64\ ft/s[/tex]
So, the linear speed of the carousel is 3.64 ft/s.
1. Define y-intercept of a line?
2. In the slope intercept form: y=mx+b, what do the variables x, y, m, b stand for?
3. Define Slope of a line. Define Rise and Run. What are the four types of slope?
1. The y-intercept of a line is on a graph where a line crosses through the y axis.
2. b is the y- intercept and m is the slope. For example something using y=mx+b could be written like y=3x+2 if the y-intercept is 2 and the slope is 3.
3. The slope is what describes the direction and steepness of a line on a graph. Rise and run mean that when you find a slope you must first find the rise over run. You must go from one dot on a graph to the next by first going up or down to where that you are on the same number on the y axis that the next point is, next go on the x axis and go left or right until you have reached the next point. For example if you went up 3 and over 2, the rise would be 3 and the run would be 2. The slope in that situation would be 3/2.
Hope this helps you.
Do the steps below on the graphing calculator:
Graph the points (2,6) and (6,8).
Define the equation y = mx + b.
Define the variable m = 1.
Define the variable b = 10.
What happens if you increase the value of m from 1 to 2?
✔ The line gets steeper.
Find the values of m and b that cause the graph to pass through the two points plotted.
m = ✔ 0.5
b = ✔ 5
Happy Paws charges $19.00 plus $4.50 per hour to keep a dog during the day. Woof Watchers charges $11.00 plus $5.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the varlable h to represent the number of hours.
Answer: its 20.5 i think i hope its right
Step-by-step explanation:
Answer: The equation is: 11+5.75h=19+4.5h The total cost of the services will be equal at 6.4 hours
Step-by-step explanation:
11 + 5.75h = 19 + 4.5h
-11 from both sides
5.75h = 8 + 4.5h
-4.5h from both sides
1.25h = 8
8 / 1.25 = 6.4,
Therefore, h=6.4
Anna’s cell phone plan charges her $30 per month plus a $150 one-time activation fee. Evelyn’s cell phone plan charges her $20 per month, plus a $450 one-time activation fee. After how many months are the costs for the girls’ cell phone plans the same?
Given:
Anna’s cell phone plan charges her $30 per month plus a $150 one-time activation fee.
Evelyn’s cell phone plan charges her $20 per month, plus a $450 one-time activation fee.
To find:
The number of months after which the costs for the girls’ cell phone plans the same.
Solution:
Let x be the number of months.
Total cost = Fixed cost + Variable cost
According to the question, cost equation for Anna’s cell phone is
[tex]y=150+30x[/tex] ...(i)
Cost equation for Evelyn's cell phone is
[tex]y=450+20x[/tex] ...(ii)
Equate (i) and (ii) to find the time after which the costs for the girls’ cell phone plans the same.
[tex]150+30x=450+20x[/tex]
[tex]30x-20x=450-150[/tex]
[tex]10x=300[/tex]
Divide both sides by 10.
[tex]x=\dfrac{300}{10}[/tex]
[tex]x=30[/tex]
Therefore, the costs for the girls’ cell phone plans the same after 10 months.
who wants dem points!!!!!!!!!!
Answer:
lol ok
Step-by-step explanation:
what is on tenth less than 0.61
Answer:
0.6
Step-by-step explanation:
because 0.61= 1=0 so 0.6+0=0.6
Markus was given dollar bills from his grandfather each day for one week. On the first day he received $1, on the second day he received $2, on the third day he received $4, and on the fourth day he received $8. If this pattern continues, how much money will Markus have by the end of the week?
Answer: $127.00
Step-by-step explanation:
you just multiply all the numbers by two then you add everything up. make sure to have a great day, and I really hope that this help! :)
State the solution(s)
x²+12x+32=0
4.28 divide by 7 equals ?
Answer:
0.611428571
Step-by-step explanation:
[tex]4.28 \div 7 \\ \\ = \frac{4.28}{7} \\ \\ = 0.611428571 \\ [/tex]
I can create and use a graph to predict values and justify my results? Help me with this please I would appreciate it
Answer:
simple even tho im in 6th grade it would be over $100
The table shows the prices of some candy items at a store. Jake selected 1.6 pounds of Fruit Chews and 2.6 pounds of Jelly Beans. The sales tax for his purchase was $0.52.
.Item. .Price Per Pound.
.Fruit Chews. - $4.70
.Jelly Beans. - $2.35
.Chocolate. - $3.50
.If Jake had $25 to spend at the candy store, how much money did Jake have left after his purchase?
Answer : 11.80$
Step-by-step explanation:
He spends 8.70$ on Fruit chews and..
4.50 $ on jelly beans
add them up then subtract them by the amount of money he already has
BRAINLIST ???
Answer:
He had 10.85 left
Step-by-step explanation:
Fruit chews 4.7 x 1.6 = 7.52
Jelly beans 2.35 x 2.6 = 6.11
7.52 + 6.11 + 0.52 = 14.15
25 - 14.15 = 10.85
Neil has a total of 12 five dollar and $10 bills in his wallet he has five times as many $10 bills as five dollar bills how many of each does he have
Answer:
12
Step-by-step explanation:
the total number of bills equals 12 f + t = 12 there are five times as many tens is 5+ t = 5 f substitute to eliminate t f + 5 f = 12 solve the number of fives f equals to remember there are five times as many tens t equals 10 check 2 + 10 = 12
Answer:
2 $5 and 10 $10
Step-by-step explanation:
he has 5 times as many 10 dollar bills as 5 dollar bills.
2 × 5 = 10 and 2 + 10 = 12
Help please urgent thanks
Answer:
The answer is 2/10 and 2/10
(A)
6.2*10^15 in a calculator
Answer:
6200000000000000
Step-by-step explanation:
Answer:
6,200,000,000,000,000
Step-by-step explanation:
6.2 x [tex]10^{15}[/tex] = 6,200,000,000,000,000
Please help me this is due in an hour!
Answer:
117
Step-by-step explanation:
it makes alternate exterior with the 177 angle
Answer:
117°
Step-by-step explanation:
y° = 180° - 48° - 44°
y° = 88°
since opposite angles are equal,
2z° + 2y° = 360°
2z + (2*88)° = 360°
2z° = 360°-176°
2z° = 184°
z° = 92°
Now, check the picture attached.
44° + a° + 87° = 180°
a = 49°
Now, a° + b° + z ° = 180°
b° = 180° - 49° - 92°
b = 39°
a quadrilateral has four angles that sums up to 360°
thus,
117° + (39° + 48°) + (44° + 49°) + (c° + 39°) = 360°
c° + 39° = 63°
c° = 24°
Finally,
c° + b° + x° = 180°
x° = 180° - 24° - 39°
x° = 117°