Answer:
The answer is D)-2x-11y-13
Step-by-step explanation:
The probability distribution below is:
a. negatively skewed
b. symmetric
c. positively skewed
Answer: NEGATIVELY SKEWED
Step-by-step explanation: I just took the assignment ;)
Answer:
A. B. A.
Step-by-step explanation:
negatively skewed
less than the median
greater than the median
Find the general solution of the differential equation y"-9y'+20y=0
Given differential equation is y"-9y'+20y=0We can write this equation asy²-9y+20y=0Here, a = 1, b = -9, and c = 20Now, we have to find the roots of this equation.
Now, let us find the value of the discriminant. b²-4ac= (-9)²-4(1)(20)= 81-80= 1Since the value of the discriminant is greater than zero, therefore, we have two real and distinct roots for this equation.Roots are given by the quadratic formula.x= (-b±√(b²-4ac))/2aOn substituting the values of a, b, and c we get,x = (9±√1)/2Now,x1= 5x2= 4/1These roots give two linearly independent solutions as follows: y1=e^5t and y2=e^4tTherefore, the general solution to the differential equation is:y=c1e^5t+c2e^4tWhere c1 and c2 are constants.
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The given differential equation is y"-9y'+20y=0.
Let us use the characteristic equation to solve this differential equation.
The characteristic equation of y"-9y'+20y=0 isr² - 9r + 20 = 0.
Solve for r by factoring the characteristic equation(r - 5)(r - 4) = 0.
Therefore, r = 5 and r = 4.
Thus, the general solution of the differential equation y"-9y'+20y=0 isy(x) = c₁e⁴x + c₂e⁵x
where c₁, c₂ are constants.
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A CD that has a regular price of $15.50 is on sale at a 25% discount. What is the sale price with a 7% sales tax? Round to the nearest cent.
Answer:
The answer should be $12.43
A pair of wireless headphones costs $125. Your friend has $40 and plans to save $15 each
month.
a. Write an inequality to show how many months your friend will need to save in order to
purchase the headphones.
5. Solve and graph the inequality.
The friend has to save for 5 and 2/3 of a month to in order to make up the remaining 85 to get the 125 headphone.
What is meant inequality graph?An inequality that consists of two or more parts is called a compound inequality. Either "or" or "and" may be used in these components. A number between 5 and 10 could be used as x in an inequality, for instance, if it states that "x is larger than 5 and less than 10". Any time one of the two inequalities is true when the two inequalities are united by the word or, the compound inequality is solved. The two separate solutions have been combined to form the final answer. Inequalities that are separated by "and" or "or" form a compound inequality. The intersection of the inequality graphs is shown by the graph of a compound inequality with a "and."
Cost of the headphone 125.
What the friend have: 40.
What need to save: 125-40 = 85
Let x = amount to be saved per month
Months to save up the 85 is 15
The equation would be 15 x = 85
Therefore x = 85/15
Which is 5 2/3 months.
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help guys pls 22x²+13x+1
Answer:
(11x+1)(2x+1)
Consider the following ratios and state that whether these ratios forms a proportion?
Case1 - 20 friends to 15 strangers
Case 2 - 4 friends to 3 strangers
A.Yes
B.No
Part B
Find the ratio of the number of friends in Case 1 to the number of friends in Case 2.
Answer: ____________
Note: Type the answer as shown. Ex: (3:8)
Answer:
Prt A- Yes
Part B- 5:1
Step-by-step explanation:
The ratios in cases 1 and 2 form a proportion. This can be seen by dividing case a by 5 which gives 4:3;
i.e 20:15 = 20
15
If you divide both numerator and denominator by 5, we have 4/3.
This shows that case 1 and 2 have the same proportions of friends to strangers.
Part B.
The number of friends in case 1 is 20 while in case 2 is 4.
we have, 20:4
= 20
4
Dividing each by 4, we have 5:1.
This means that the ratio of friends that in case 1 to case 2 is 5:1.
cheers
The monthly starting salaries of students who receive an MBA degree have a population standard deviation of $110. What size sample should be selected to obtain a 95% confidence interval for the mean monthly income with a margin of error of $20?
To obtain a 95% confidence interval for the mean monthly income with a margin of error of $20, a sample size of 95 students should be selected.
What is the required sample size?To determine the required sample size, we need to consider the population standard deviation, desired confidence level, and the desired margin of error.
In this case, the population standard deviation is given as $110, and the desired margin of error is $20. The desired confidence level is 95%, which corresponds to a z-score of 1.96 for a two-tailed test.
Using the formula for the sample size calculation for estimating the mean, which is n = (z² * σ²) / E², where z is the z-score, σ is the population standard deviation, and E is the margin of error, we can substitute the given values and solve for the sample size.
Plugging in the values, we have n = (1.96^2 * 110²) / 20², which simplifies to n ≈ 93.14.
Since we cannot have a fraction of a student, we round up to the nearest whole number. Therefore, a sample size of 95 students should be selected.
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Identify the following as either qualitative, quantitative discrete, or quantitative continuous: Number of students responding to a survey about their names a. Neither qualitative, quantitative discrete, or quantitative continuous
b. Quantitative continuous c. Qualitative d. Quantitative discrete
The given options are as follows: a. Neither qualitative, quantitative discrete, or quantitative continuous. b. Quantitative continuous c. Qualitative d. Quantitative discrete
Among the given options, option b. "Quantitative continuous" and option c. "Qualitative" are the correct identifications.
a. "Neither qualitative, quantitative discrete, or quantitative continuous" is not a valid identification as it does not specify the nature of the data.
b. "Quantitative continuous" refers to data that can take any numerical value within a range. For example, measuring the weight of objects on a scale is a quantitative continuous variable.
c. "Qualitative" refers to data that is descriptive or categorical, such as the color of a car or the type of fruit.
d. "Quantitative discrete" refers to data that can only take specific, distinct values. For example, counting the number of books on a shelf would be a quantitative discrete variable.
Therefore, the correct identifications are option b. "Quantitative continuous" and option c. "Qualitative."
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The function y=-0.23x+1 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer. Identify and interpret the slope. The slope is [-0.23 or 1]. This means that the power [decreases or increases] by [23% or 100%] per hour.
Answer:
The slope is -0.23. This means that the power decreases by 23% per hour.
Step-by-step explanation:
Given the function y=-0.23x+1 that represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer, we are to identify and interpret the slope
The standard form of equation of a line is expressed as y = mx+c
m is the slope
c is the intercept
On comparison, you will see that;
-0.23x= mx
-0.23 = m
rearrange
m = -0.23
Hence the slope is -0.23
Since the slope is negative, it shows that the power decreases by 23% per hour (0.23 = 23%)
Maria i placing take in her garden in a traight line. The 10 take are equally paced. The firt and fourth take are 10 feet apart. How far apart, in feet, and the firt and tenth take
Answer:
30 feet
Step-by-step explanation:
You want to know the distance between the first and last of 10 stakes evenly spaced, such that the first and fourth are 10 feet apart.
GapsBetween stakes 1 and 4 are 3 gaps. Between stakes 1 and 10 are 9 gaps, which is 3 times as many.
The distance from the 1st to 10th stakes will be 3 times the 10 ft distance from the 1st to 4th stakes.
3 · 10 ft = 30 ft
The first and tenth stakes are 30 feet apart.
Given m||n, find the value of x.
t
-10
m
1299
9514 1404 393
Answer:
x° = 51°
Step-by-step explanation:
The angle marked 129° is corresponding to the angle adjacent to x° and immediately to its left. That angle, with x°, is a linear pair, meaning that x° and 129° are supplementary.
x° = 180° -129°
x° = 51°
The measure of the angles of a triangle are 34 degrees and 45 degrees. What is the measure of the third angle
Kaniyah is making ribbons do school spirit day. Her roll of ribbon is 32 ft. long. For each individual ribbon, she needs 0.64 ft. How many ribbons can she make from her roll?
Answer 50 is the answer have a good day
Answer:
50 ribbons
Step-by-step explanation:
To find how many ribbons she can make, divide 32 by 0.64:
32/0.64
= 50
So, she can make 50 ribbons from her roll
letter b: Original quantity 20 new quantity 8
letter c: original quantity : 50 new quantity : 38
can someone please help and explain how to get the percentage of these please?
The percentage of the new quantity in letter b is 40% and the Percentage of the new quantity in letter c is 76%.
What is percentage?A percentage, often known as percent, is a division by 100. Percentage, which means "per 100," designates a portion of a total sum.
Given data:
letter b: Original Quantity: 20 new quantity: 8
letter c: original quantity: 50 new quantity: 38
Calculate the percentage as shown below,
Percentage of new quantity in letter b = new quantity / Original Quantity × 100
Percentage of new quantity in letter b = 8 / 20 × 100 = 40%
Percentage of new quantity in letter c = new quantity / Original Quantity × 100
Percentage of new quantity in letter c = 38 / 50 × 100 = 76%
Therefore, the percentage of the new quantity in letter b is 40% and the Percentage of the new quantity in letter c is 76%.
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there are 366 first grade students in park elementary school if there are 28 more girls than boys how many girls are there ?
Answer:
Step-by-step explanation:
Total no. of children = 366
let the number of boys be x
and the no. of girls be x + 28
According to the question,
x + x + 28 = 366
2x + 28 = 366
2x = 366 - 28
2x = 338
x = 338 / 2
x = 169
So the no. of boys = x = 169
and the no. of girls = x + 28 = 169 + 28 = 197
( you can also recheck it by adding the no. of boys and the no. of girls
that is, 169 + 197 = 366 which equal to the total no. of children )
Hope this helps
plz mark as brainliest!!!!!!
At a sale on winter clothing, Cody bought two pairs of gloves and four hats for $44.00. Tori bought two pairs of gloves and two hats for $28.00. Solve the system to determine the prices of the hats and gloves.
Answer:
$6.00 for pair of gloves and $8.00 for a hat
Step-by-step explanation:
the difference between Tori and Cody is $16.00 its two hats. Then one hat is $8.00
If two hats are $16, two pair of gloves must be $12.00
Then one pair of gloves is $6.00
two integers from 1 to 60 are chosen by a random number generator. what is the probability that (a) both numbers are odd, (b) both numbers are less than 12, and (c) the same number is chosen twice?
(a) Probability that both numbers are odd = 0.4932
(b) Probability that both numbers are less than 12 = 0.4545
(c) Probability that the same number is chosen twice = 1/60
(a) To find the probability that both numbers are odd, we need to count the number of ways to choose two odd numbers between 1 and 60, and divide by the total number of possible outcomes.
There are 30 odd numbers between 1 and 60, so there are 30 choices for the first number and 29 choices for the second number (since the two numbers can be the same). The total number of possible outcomes is 60 choose 2, which is
60 choose 2 = (60 × 59) / 2 = 1770
So the probability that both numbers are odd is
(30 × 29) / 1770 = 0.4932
(b) To find the probability that both numbers are less than 12, we need to count the number of ways to choose two numbers between 1 and 11, and divide by the total number of possible outcomes.
There are 11 choices for each number, so there are 11 × 11 = 121 possible outcomes. The number of ways to choose two numbers less than 12 is
11 choose 2 = (11 × 10) / 2 = 55
So the probability that both numbers are less than 12 is
55 / 121 = 0.4545
(c) To find the probability that the same number is chosen twice, we need to count the number of ways to choose a number, and then multiply by the probability that the same number is chosen again.
There are 60 choices for the first number, and only 1 choice for the second number if we want it to be the same as the first. So the probability that the same number is chosen twice is
1/60
So the probability that the same number is chosen twice is
(1/60) × 60 = 1/60
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Write an equation for a rational function with the given characteristics vertical asymptotes: "-4" , slant asymptote: y= x-2 and one x intercept is (3,0)
An equation for a rational function with the given characteristics vertical asymptotes: "-4" , slant asymptote: y= x-2 and one x intercept is (3,0) is
y =(x²+2x-15)/(x-2).
As given,
Vertical asymptote :-4
⇒x=-4
Slant asymptote: y=x-2
x-intercept :(3,0)
Equation for a rational function : y=\((x +4) + \frac{a}{x-2}\)
Substitute when y=0 , x=3
\(0 = (3+4) + \frac{a}{3-2}\)
⇒0 = 7+a
⇒a =-7
Rational function:
\(y= (x +4) + \frac{-7}{x-2}\\\\\implies y = \frac{x^{2} +2x -15}{x-2}\)
Therefore, equation for a rational function with the given characteristics vertical asymptotes: "-4" , slant asymptote: y= x-2 and one x intercept is (3,0) is y = (x²+2x-15)/(x-2).
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--a cuando a=-4 y b=7?
Cual es el valor de ese problema?
Answer: es -4 + 7 = 3
Step-by-step explanation:
what does 3.64 + 3/5 equal
Answer:
4.24
Step-by-step explanation:
3.64 + 3/5
3.64 + 0.6 <--- 3/5 = 0.6 as a decimal
= 4.24 <--- Final answer
Plssss help plssssss
Answer:
True
Step-by-step explanation:
Just compare the numbers to the dots.
I hope this helps!
pls ❤ and give brainliest pls
Answer:
true
Step-by-step explanation:
The answer is true.
which of the following statements creates an array of decimals named miles and assigns the values 27.2, 33.5, 12.8, and 56.4 to its elements?
The statement that creates an array of decimals named miles and assigns the values 27.2, 33.5, 12.8, and 56.4 to its elements is: `double[] miles = {27.2, 33.5, 12.8, 56.4}.
An array is a data structure that contains a group of elements of the same data type. It is a collection of variables with the same data type but with different values assigned to them. To create an array in Java, we specify the data type of the elements in the array and the size of the array.The code that creates an array of decimals named miles and assigns the values 27.2, 33.5, 12.8, and 56.4 to its elements is given as follows: double[] miles = {27.2, 33.5, 12.8, 56.4}: The `double[]` specifies the data type of the elements in the array, which is double. The name of the array is miles, and it contains four elements with values 27.2, 33.5, 12.8, and 56.4 respectively.
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DECIMAL MILES can create array of decimal miles.
In computer science, an array is a data structure consisting of a collection
of elements, of same memory size, each identified by at least one array
index or key. An array is stored such that the position of each element can
be computed from its index tuple by a mathematical formula. Two type of
array are there 2D array and 3D array. The following statement creates an
array of decimals named miles and assigns the values 27.2, 33.5, 12.8, and
56.4 to its elements:
decimal[] miles = {27.2, 33.5, 12.8, 56.4};
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3.02 x 10-1 =
A = 30.2
Answer:
3.02
x 10
-------
000
+302x
______
30.20
Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a Poisson distribution with parameter μ = 20 suggested in the article "Dynamic Ride Sharing: Theory and Practice"T). (Round your answer to three decimal places) (a) What is the probability that the number of drivers will be at most 19? (b) What is the probability that the number of drivers will exceed 29
a) The probability that the number of drivers will be at most 19 is approximately 0.411 or 41.1%.
b) The probability that the number of drivers will exceed 29 is approximately 0.004 or 0.4%.
(a) To find the probability that the number of drivers will be at most 19, we need to use the Poisson distribution formula:
P(X ≤ 19) = e^(-20) * (20^0/0!) + e^(-20) * (20^1/1!) + ... + e^(-20) * (20^19/19!)
Using a calculator or statistical software, we get P(X ≤ 19) ≈ 0.088.
(b) To find the probability that the number of drivers will exceed 29, we can use the complement rule:
P(X > 29) = 1 - P(X ≤ 29)
Using the same Poisson distribution formula as in part (a), we can find P(X ≤ 29) ≈ 0.963. So,
P(X > 29) = 1 - 0.963 = 0.037 (rounded to three decimal places).
Note: "Dynamic Ride Sharing" is not directly related to this question and is not necessary for answering it.
Hi! I'd be happy to help you with your question.
(a) To find the probability that the number of drivers will be at most 19, you can use the cumulative distribution function (CDF) of the Poisson distribution. The parameter for this distribution is μ = 20. The formula for the Poisson CDF is:
P(X ≤ k) = Σ (e^(-μ) * (μ^x) / x!) for x = 0 to k
In this case, k = 19. Plugging in the values and calculating the sum, we get:
P(X ≤ 19) ≈ 0.411
Therefore, the probability that the number of drivers will be at most 19 is approximately 0.411 or 41.1%.
(b) To find the probability that the number of drivers will exceed 29, you can use the complementary probability rule. First, find the probability that the number of drivers will be at most 29, and then subtract that from 1.
P(X > 29) = 1 - P(X ≤ 29)
Using the Poisson CDF formula with k = 29 and μ = 20:
P(X ≤ 29) ≈ 0.996
Now, subtract this value from 1:
P(X > 29) = 1 - 0.996 ≈ 0.004
Therefore, the probability that the number of drivers will exceed 29 is approximately 0.004 or 0.4%.
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A line with a slope of 2 passes through the points (k, 3) and (6, k) on the coordinate grid. What is the value of k?
The value of k that makes the line passing through the points (k, 3) and (6, k) have a slope of 2 is k = 5
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.
A line with a slope of 2 passes through the points (k, 3) and (6, k), hence:
2 = (k - 3) / (6 - k)
12 - 2k = k - 3
k = 5
The value of k that makes the line passing through the points (k, 3) and (6, k) have a slope of 2 is k = 5
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A truck holds 48,000 pounds of sand.
How many tons are in 48,000 pounds?
Answer:
24
Step-by-step explanation:
dont exaclty have an explanations - its just the calculations
(x-5)^2-1=0
tìm x giúp mik vs
Solve the following system of linear equations by substitution and determine whether the system has one solution,no solution, or an infinite number of solutions. If the system has one solution, find the solution.5 - 2x + y = 410x + 2y = -6
Given
- 2x + y = 4 (1)
10x + 2y = -6 (2)
Answer
-2/10 = -1/5
1/2
4/6 = 2/ 3
System has one solution
Multiply eq 1 by 5
-10x+5y=20
10x+2y=-6
Adding
7y =14
y=14/7 = 2
Put in eq 1
-2x+ 2 =4
-2x = 2
x= -1, y=2
13 only (give brainliest) ASAP
Answer:
1/3 or 0.3
Step-by-step explanation:
5/8 x 4/5 x 2/3 =
1/3 or 0.3
Answer:
1/3 in^3
Step-by-step explanation:
In order to find the volume, you must multiply the length, by the width, by the height. This would mean you need to do 2/3x5/8x4/5=40/120
40/120 simplified will give you 1/3
he average home attendance per week at a Class AA baseball park varied according to the formula N(t)=1000(6+0.2t)^1/2 where t is the number of weeks into the season (0≤t≤17) and N represents the number of people.
Step 1 of 2 :
What was the attendance during the first week into the season? Round your answer to the nearest whole number.
___ people.
The attendance during the first week into the season was 2449 people.
Given, N(t)=1000(6+0.2t)^1/2
Formula for average home attendance per week at a Class AA baseball park is N(t)=1000(6+0.2t)^1/2, where t is the number of weeks into the season (0 ≤ t ≤ 17) and N represents the number of people.
Step 1:We need to find the attendance during the first week into the season.i.e. when t = 0
Substitute t = 0 in the given formula
N(t)=1000(6+0.2t)^1/2N(0)
=1000(6+0.2(0))^1/2N(0)
=1000(6)^1/2N(0)
=1000(2.449..)N(0)
=2449 (Rounded to nearest whole number)
Hence, the attendance during the first week into the season was 2449 people.
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