wait times of between 0 and 20 minutes at a local restaurant follow a uniform distribution. sketch the distribution use the distribution that a randomly selected diner waits between 2 and 7.5 minutes for a table find the probability a randomly selected diner waits less than 8 minutes for a table find the probability a randomly selected diner waits more than 1.5 minutes
a) The probability of a randomly selected diner waits less than 8 minutes for a table is 0.4
b) The probability of a randomly selected diner waits more than 1.5 minutes is 0.925
Given, wait times of between 0 and 20 minutes at a local restaurant follow a uniform distribution.
The probability density function of a uniform distribution is given by
f(x) = {1/(b-a)} where a ≤ x ≤ b
where a = 0 and b = 20
Therefore, the probability density function of f(x) = 1/20 for 0 ≤ x ≤ 20
For the probability that a randomly selected diner waits between 2 and 7.5 minutes for a table, we need to find the area under the curve from x = 2 to x = 7.5
∴ P(2 ≤ x ≤ 7.5) = ∫₂⁷.⁵(1/20) dx
= 5.5/20 ⇒ 0.275
a) We need to find the area under the curve from x = 0 to x = 8
∴ P(x < 8) = ∫₀⁸(1/20) dx
= 8/20 ⇒ 0.4
b) We need to find the area under the curve from x = 1.5 to x = 20
∴ P(x > 1.5) = ∫₁.₅²⁰(1/20) dx
= 18.5/20 ⇒ 0.925
To know more about the "probability" of a randomly selected: https://brainly.com/question/30044489
#SPJ11
Open-Ended Write an equation for the line in slope-intercept form. Use pencil and paper. Which part of writing
the equation is the most difficult? The easiest? Explain.
(Use integers or fractions for any numbers in the equation.)
The equation of the line in slope-intercept form is y = -5x
How to determine the equation of a line into slope-intercept form?From the question, we have the graph that can be used in our computation
On the graph, we have the following points
(0, 0) and (-1, -5)
Start by calculating the slope using
Slope = (y₂ - y₁)/(x₂ - x₁)
Where,
(x, y) = (0, 0) and (1, -5)
So, we have
Slope = (-5 - 0)/(1 - 0)
This gives
Slope = -5
The equation of the line is then calculated as
y= Slope * (x - X) + Y
So, we have
y = -5 * (x - 0) + 0
Evaluate
y = -5x
Hence, the equation is y = -5x
Read more about linear equations at
https://brainly.com/question/4074386
#SPJ1
A student's four test grades are stored in cells a10, b10, c10, and d10. which excel statement will calculate the test average of these 4 grades?
The excel statement to estimate the test average of these 4 grades is -
Click a cell just below column or on the right of the row containing the numbers you want to average.Click the arrow next to AutoSum > Average on the HOME tab, then press Enter.What is termed as average function?An average is the sum of many numbers divided by the total of numbers. It is also known as the arithmetic mean.
Assume we have the following sequence of numbers: 1, 2, 3, 4, 1, 2, and 3. The sum of the these numbers is 16, and the number of numbers divided by 7 is 2.28. As a result, the average of the these numbers is 2.28.In Microsoft Excel, how do you find the average?The average of multiple cells in Microsoft Excel and other spreadsheets can be calculated using the appropriate formula. The formula in the following example calculates the average of the values found in cells A1 through F1 of the first column : =AVERAGE(A1:F1)You would use the same row but modify the cells to cells in a row to calculate the average of cells in one row. For instance, the formula recognizes the average value in cells A1 via A20 when placed in cell A21. =AVERAGE(A1:A20)To know more about the Microsoft Excel, here
https://brainly.com/question/23501096
#SPJ4
Which equation could be used to find the value of x?
cos 49° = X/55
tan 49° = x/55
cos 49° = 55/x
tan 49° = 55/x
PLEASE ANSWER FAST!
tan 49° = x/55
tan Θ = opposite/adjacent
x - opposite
55 cm - adjacent
a recipe for sparking grape juice for 1 1/2 quarts of sparkling water and 2/4 quart grape juice Q1 How much sparkling water would you need to mix with 9 quarts of grape juice Q2 HOw much grape juice would you need to mix with 15/4 quarts of sparkling water Q3 How much of each ingredient would you need to make 100 quarts of punch
The quarts of water needed for 9 quarts of grape juice is 18 quarts of water .
The amount of grape juice needed for 15 / 4 quarts of water is 1 7/8.
The amount of water needed for 100 quarts is 66 2/3 quarts.
The amount of grape juice needed for 100 quarts is 33 1/3 quarts.
How much grape juice and sparkling water is needed?The first step is to determine the ratio between the ingredients needed for sparking grape juice.
Ratio of sparking water to grape juice - 1 1/2 : 2/4
When expressed in its simplest form, the ratio becomes - 1 1/2 : 1.2
This means that there are twice the amount of water is needed for 1 quart of grape juice.
Quarts of sparking water needed for 9 quarts of grape juice = 9 x 2 = 18 quarts of sparking water
Grape juice needed for 15/4 quarts of sparking water = 15 / 4 ÷ 2
15 / 4 x 1/2 = 15 / 8 = 1 7/8
Let a represent the quarts of grape juice that would be used to make 100 quarts of punch.
Let a represent the quarts of sparking water that would be used to make 100 quarts of punch.
a + 2a = 100
3a = 100
a = 100 / 3
a = 33 1/3
Quarts of sparking water needed = 100 - 331/3 = 66 2/3 quarts
To learn more about mixtures, please check: https://brainly.com/question/11729084
#SPJ1
please help me I will mark u as brainlist
Answer:
What kind of question is it?
What additional information could be used to prove that ΔXYZ ≅ ΔFEG using ASA or AAS? Check all that apply.
The additional information required to prove that ΔXYZ and ΔFEG are congruent is ∠Z ≅ ∠G and XZ ≅ FG or ∠Z ≅ ∠G and XY ≅ FE. So option 1 and 5 are correct.
Here in the figure it is given that ∠F and ∠X are congruent. To prove the triangle is congruent we have to prove that either two sides including the angles are congruent or another angle and included side is congruent.
When ∠Z ≅ ∠G and XZ ≅ FG, two angles and included sides are congruent, so triangles are congruent.
∠Z ≅ ∠G and ∠Y ≅ ∠E , we can not apply ASA, since three angles are mentioned
XZ ≅ FG and ZY ≅ GE , Two sides are given, ASA cannot be applied, we need two angles
XY ≅ EF and ZY ≅ FG, is not possible.
∠Z ≅ ∠G and XY ≅ FE, one corresponding side and two angles are equal, so ΔXYZ ≅ ΔFEG according to ASA.
So, the correct answer is option 1 and option 5.
For more information regarding Congruency of triangle, kindly refer
https://brainly.com/question/30094434
#SPJ4
The complete question is as follows and image is given below
What additional information could be used to prove that ΔXYZ ≅ ΔFEG using ASA or AAS? Check all that apply.
∠Z ≅ ∠G and XZ ≅ FG
∠Z ≅ ∠G and ∠Y ≅ ∠E
XZ ≅ FG and ZY ≅ GE
XY ≅ EF and ZY ≅ FG
∠Z ≅ ∠G and XY ≅ FE
Answer:
1 and 5 are correct
Step-by-step explanation:
The original price of a coat is $90. It is on sale for 20% off. How much will you pay if you buy the cost during the sale?
Answer:
72$
Step-by-step explanation
How to insert in a calculator 90-20%= 72
How to take 20% from a price
Divide the original price by 5. 18
Subtract this new number from the original one. 90 - 18
The number you calculated is the discounted value. 90 - 18 = 72
Someone help plssssss
Answer:
\( \boxed{ \tt{j} = \boxed{\tt 13.5}}\)
Step-by-step explanation:
Given equation:
\( \sf \cfrac{j}{ \tt3} = \tt 4.5\)
To find:
Value of x
Solution:
\( \implies\sf \cfrac{j}{ \tt3} = \tt 4.5\)
Multiply both sides by 3:
\(\sf \implies \cfrac{j}{3} \times 3 = 4.5 \times3\)
Use cancellation method to cancel LHS :
\( \sf \implies \cfrac{j}{ \cancel3 \: {}^{1} } \times \cancel3 \: {}^{1} = 4.5 \times 3 \: \: \)
\(\sf \implies{j} \times 1 = 4.5 \times 3\)
\(\sf \implies{j} = 4.5 \times 3\)
Now Multiply the RHS(4.5 and 3):
\( \sf \implies{j} = \boxed{13.5}\)
We're done!
Hence , the value of j would be 13.5 .
\( \rule{225pt}{2pt}\)
I hope this helps!
Let me know if you have any questions.
What's the answer please
Answer:
6
Step-by-step explanation:
Solve the system of equations and wright your answer as an ordered pair -5/4x-5/4y =25/41/5x+4/5y=1/5
(-7, 2)
STEP - BY - STEP EXPLANATION
What to find?
The solution to the given the system of equations .
Given:
\(\begin{gathered} -\frac{5}{4}x-\frac{5}{4}y=\frac{25}{4} \\ \\ \frac{1}{5}x+\frac{4}{5}y=\frac{1}{5} \end{gathered}\)To solve the above system of equations, we will follow the steps below:
Step 1:
Multiply through equation (1) by 4
\(-5x-5y=25\text{ ----------------------(2)}\)Step 2
Multiply through the second equation by 5.
\(x+4y=1\text{ -------------------------(3)}\)Step 3
Using substitution method to solve.
Make x the subject of formular.
\(x=1-4y-------------------(4)\)Step 4
Substitute equation(4) into equation (2).
\(-5(1-4y)-5y=25\)Step 5
Open the parenthesis.
\(-5+20y-5y=25\)Step 6
Collect like term.
\(\begin{gathered} 20y-5y=25+5 \\ 15y=30 \end{gathered}\)Step 7
Divide both-side of the equation by 15.
\(\begin{gathered} \frac{15y}{15}=\frac{30}{15} \\ \\ y=2 \end{gathered}\)Step 8
Substitute y=2 into equation (4) to determine the value of x.
\(\begin{gathered} x=1-4(2) \\ =1-8 \\ =-7 \end{gathered}\)Hence, x =-7 and y=2.
Therefore, the solution in ordered pair is (-7, 2)
A graphic artist is designing a poster to advertise an upcoming event. The only restrictions regarding the poster size is that it must have a length of 6x inches and a width of 5x+3 inches. Find a simplified expression for the area of the poster.
SOLUTION
From the question
\(\begin{gathered} \text{The length of the poster }l\text{ must be }6x\text{ inches, that is } \\ l=6x \\ \text{The width w, must be }5x+3\text{ inches, that is } \\ w=5x+3 \end{gathered}\)And a poster is in a shape of a rectangle. The area of a rectangle is measured as
\(A=l\times w\)So, the expression for the area of the poster becomes
\(\begin{gathered} A=6x\times(5x+3) \\ A=30x^2+18x \end{gathered}\)Hence the answer is
\(A=30x^2+18x\)PLEASE HELP AND ANSWER QUICKLY DUE SOON!!!!!
consider the function f(x) = 9x^2- 3x + 3
Determine the output produced by the input value x = 3.
Output: F(3) =
What is the median of the following numbers: 100, 99, 81, 99, 86.
Need help? Click here.
93
99
0465
None of the other answers are correct
Answer:
its 99
Step-by-step explanation:
because it is the middle of your set after you arrange them in order from least to greatest
george can walk 5 miles in 1 1/2 hours at this rate how far can george walk in 6 hours?
fraction form
\(\mathrm{\frac{\#\:of\:miles}{\#\:of\:hours}=\frac{5}{1\frac{1}{2}}}\)
First off, we have to convert 1 and half hours to minutes
1 hour = 60 mins
1 and a half is half of 1, which is 60 ÷ 2 = 30, then plus 1 hour, which is 60. So 60 + 30 = 90.
So we have:
\(\frac{5}{90}\)
Since we converted minutes to hours on one side of the equation, we have to do the same on the other side of the equation.
1 hour = 60 mins
6 hours would be 60 × 6 = 360 minutes
Now we can set up a variable, \(m\), as to how far it will take in miles.
\(\frac{5}{90}=\frac{m}{360}\)
Make sure to put your units at the same level. Learn more: https://brainly.com/question/25104279
Nextly, we solve for \(m\)
\(\frac{5}{90}=\frac{m}{360}\)
Step 1: Multiply 10 to both sides
\(10\cdot[\frac{5}{90}]=[\frac{m}{360}]\cdot10\)
10 and 90. Cancel the zeros. We are left with 9, so \(\frac{5}{9}\)
360 and 10. Cancel the zeros. We are left with 36, so \(\frac{m}{36}\)
So we have \(\frac{5}{9}=\frac{m}{36}\)
Step 2: Multiply 36 to both sides
\(\frac{36m}{36}=\frac{5\cdot \:36}{9}\)
\(20\)
Therefore, Goerge could walk 20 miles in 6 hours.
Please help on number 3 I’m so confused and it’s urgent. It’s due soon please help
By using function notation, you should write an equation or expression for each statement as follows;
The temperature at 12 p.m ⇒ f(12).
The temperature was the same at 9 a.m. and at 4 p.m ⇒ f(9) = f(16).
It was warmer at 9 a.m. than at 6 a.m ⇒ f(9) > f(6).
Some time after midnight, the temperature was 24 degrees Celsius. ⇒ f(t) = 24.
What is a function?In Mathematics, a function simply refers to a mathematical expression which can be used for defining and showing the relationship that exist between two or more variables in a data set.
This ultimately implies that, a function typically shows the relationship between input values (x-values or domain) and output values (y-values or range) of a data set, as well as showing how the elements in a table are uniquely paired (mapped).
For the statement, "The temperature was the same at 9 a.m. and at 4 p.m." we have:
4 p.m = 12 + 4 = 16
In function notation, we have:
f(9) = f(16) or f(16) = f(9)
Read more on function here: brainly.com/question/12789432
#SPJ1
How to make 20 using the number 3,5,6,3 add
Answer:
3+3+6+5+3=20
Step-by-step explanation:
3+3=6
6+6=12
12+5=17
17+3=20
Answer:
(3x3)+6+5
Step-by-step explanation:
3 times 3 is 9
9 plus 6 is 15
15 plus 5 is 20
is this correct? i added them together to simplify it. (will give brainliest if theres an early response)
Answer: I think the answer is 5.3x + 1.7
Marco's polo team has a budget for new uniforms of $250. If there are 12 members of the team, what can Marco spend on uniforms.
A.No more than $20 per uniform
B.No less than $20 per uniform
C.No more than $21 per uniform
D.No less than $21 per uniform
two lines intersect in the figure below. what is the value of x?
Answer:
A. 17
Step-by-step explanation:
The angles are adjacent, meaning they are congruent. So you will set (5x + 6) equal to 91
(5x + 6) = 5x + 6
5x + 6 = 91
5x + 6 - 6 = 91 - 6
5x = 85
5x / 5 = 85 / 5
x = 17
Determine the general rule for the sequence 19;11;3;.....
Answer:
Answer 3.0/528 claudiasai 88-2n + 2927,25,23,21,19- 2 difference- 2n + 29-2 x (1 ) + 29 =27-2 x (3) +29 =23
Step-by-step explanation:
Write a recursive formula for each sequence. 3. 1, 6, 11, 16, ... SOLUTION: ... Check for a common ratio by dividing each term by the term that precedes it. = 3 ;. = 3 ; ... 19. 100, 80, 64, 51.2, ... SOLUTION: Subtract each term from the term that follows it. ... Patrick thinks that the sequence can be written as a recursive formula.
Answer:
\(a_{n}\) = 27 - 8n
Step-by-step explanation:
There is a common difference between consecutive terms, that is
11 - 19 = 3 - 11 = - 8
This indicates the sequence is arithmetic with nth term
\(a_{n}\) = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 19 and d = - 8 , then
\(a_{n}\) = 19 - 8(n - 1) = 19 - 8n + 8 = 27 - 8n ← general rule
One number is 13 less than another number. Let x represent the greater number. What is the sum of these two numbers?
Answer:
2x - 13
Step-by-step explanation:
If x represents the greater number, then the other number is x - 13. The sum of these two numbers is:
x + (x - 13) = 2x - 13
Use the ratio test to determine whether the series is convergent or divergent. 1+3/1*2*3+5/1*2*3*4*5+…
The \(n\)-th term \((n\ge1)\) in the series is evidently
\(\dfrac{2n-1}{(2n-1)!} = \dfrac{2n-1}{(2n-1)(2n-2)!} = \dfrac1{(2n-2)!}\)
By the ratio test, the infinite series converges, since
\(\displaystyle \lim_{n\to\infty} \left| \frac{\frac1{(2(n+1)-2)!}}{\frac1{(2n-2)!}}\right| = \lim_{n\to\infty} \frac{(2n-2)!}{(2n)!} = \lim_{n\to\infty} \frac1{2n(2n-1)} = 0 < 1\)
12 yd
4 yd
7 yd
7yd
4yd
4 yd
4 yd
4 yd
what is the area
Daisy received $2 on her first birthday. Each year, the amount of money she received
tripled. When finding how much money will she receive on her 5th birthday; which is the
value of r?
daisy will received 30 on her 5th birthday
3x + 7 <= 8x - 3
Please I need help
Find x
Please I need your help, I have 3 mins left
Answer:
x =8
Step-by-step explanation:
two interior angles of a triangle each measure 34degrees what is the measure of the third interior angle
Answer:
112°
Step-by-step explanation:
The sum of the interior angles of a triangle is 180°
Let x = unknown angle
⇒ 34 + 34 + x = 180
⇒ 68 + x = 180
⇒ x = 180 - 68
⇒ x = 112°
Other angle be y
Apply angle sum property
\(\\ \rm\hookrightarrow 34+34+y=180\)
\(\\ \rm\hookrightarrow 2(34)+y=180\)
\(\\ \rm\hookrightarrow 68+y=180\)
\(\\ \rm\hookrightarrow y=112\)
if AB = 7x, CB = 5x + 8, and BD ⊥ AC, what is the length of CB?
Answer: 28
Step-by-step explanation:
Because BD ⊥ AC we can conclude that AB is equal to CB so we can set them equal to each other in an equation.
7x = 5x + 8
2x = 8
x = 4
Because X is 4 we can fill it into CB's expression.
5(4) + 8
20 + 8
28
The electronics store is offering 30% off all accessories. If Lisa saves $9.00 buying four charging cords, what was the original price of the cords?
Answer:
Cost of each cord = $7.5
Step-by-step explanation:
Given:
Discount rate = 30% = 0.30
Amount save by Lisa = $9
Number of charger = 4
Find:
Cost of each cord
Computation:
Total cost of 4 charger = Amount save by Lisa[1/Discount rate]
Total cost of 4 charger = 9[1/0.30]
Total cost of 4 charger = $30
Cost of each cord = Total cost of 4 charger / Number of charger
Cost of each cord = $30 / 4
Cost of each cord = $7.5