The number of children wearing both black and orange costumes is 7.
Let P denote the universal set, the number of children going to a party.
Then n(P) = 46
Let B denote the number of children wearing black costumes to the party.
Then n(B) = 18
Let O denote the number of children wearing orange costumes to the party.
Then n(O) = 12
We are asked to find how many children will wear both orange and black. That is to find n(B ∩ O).
We are also given that half of the guests are wearing costumes that are neither black nor orange.
Then n(B ∪ O)' = n(P)/2 = 46/2 = 23, where n(B U O)' denotes the complement of n(B U O).
We also know that n(B ∪ O) = n(P) - n(B U O)' = 46 - 23 = 23
⇒ n(B U O) = n(B) + n(O) - n(B ∩ O)
⇒ 23 = 18 + 12 - n(B ∩ O)
⇒ 23 = 30 - n(B ∩ O)
⇒ n(B ∩ O) = 30 - 23 = 7
⇒ n(B ∩ O) = 7.
Therefore, the number of children wearing both black and orange costumes is 7.
Learn more about sets here:
https://brainly.com/question/28278437
#SPJ9
Please help! Consider the following subset of the real number line. How can this set be expressed using inequalities?
Answer:
-2 ≤ x ≤10
Step-by-step explanation:
Notice that x can never be less than -2 and can never exceed.
-2 and 10 are all inclusive thus the last answer is not correct as it tries to leave them out
name of the vertex of <4 name the side of <1 write another name <5 classify each angle
Answer:
A. vertex B
B. Side BC and BD
C. Angle EBD
Step-by-step explanation:Me and my Teacher did this together
PLEASE HELP!!!!
Directions:
In Australia, huge trees are filled with birds or sunset. Although it can be hard to see these birds at first, you can always here them! Write a decimal and a percent for each fraction.
Question:
The parrots in the tree, 8/12 are green, Round to the nearest hundredth
Please help roght now very rushed
Answer:
c
Step-by-step explanation:
use the discriminant to find the nature of the solutions to the following quadratic equation3x^2 -2x-4=0Two different irrational number solutionsOne repeated irrational number solutiontwo different rational number solutionsOne repeated rational number solutiontwo imaginary number solution
The quadratic equation is
3x^2 - 2x - 4
using completing the square method
firstly, to solve a quadratic equation the coefficient x^2 must be 1
divide through by 3
3x^2/3 -2x/3 - 4/3 = 0
make the linear expression a perfect square
x^2 - 2x/3 = 4/3
make -2x/3 a perfect square
x^2 - 2x/3 x 1/ 2 = 4/3
x^2 - 2x/6 = 4/3
square -2x/6
x^2 -(2x/6)^2 = 4/3
add the perfect square to both sides
x^2 - (2x/6)^2 = 4/3 + (2/6)^2
(x - 2/6)^2 = 4/3 + 4/36
solve the left hand side of the equation
4/3 + 4/36
lcm is 36
4 * 12 + 4 *1 / 36
48 + 4 / 36
52/36
(x - 2/6)^2 = 52/36
find the squareroot of both sides
\(\begin{gathered} \text{x -2/6 }\pm\text{ }\sqrt[]{\frac{52}{36}_{}} \\ x\text{ = 2/6 }\pm\text{ }\frac{\sqrt[]{52}}{6} \\ \end{gathered}\)square root of 52 is 7.211
x = 2 + 7.211 / 6 0r 2 - 7.211 / 6
x = 9.211 / 6 or -5.211/6
x = 1.53 or -0.8685
the answer is two different rational number solutions
6y (2/3x + 6k - 1/2
A- 4xy + 6k - 1/2
B- 4x + 36k - 3
C- 4xy + 36ky - 3y
D- 4xy + 36ky + 3y
Answer:
C
Step-by-step explanation:
To solve this problem:
Distribute 6y (2/3x + 6k - 1/2)
What is 2/3x times 6y? Answer: +4xy
What is 6k times 6?y Answer: +36ky
What is -1/2 times 6y? Answer: -3y
Write the answers as an equation: \(4xy+36ky-3y\)
The answer is C
Hope this helps :)
Have a great day!
16-18 help please !!!!!!
Answer:
not sure but -2
Step-by-step explanation: I did on calculator
Ed has 2 green apples and 6 red apples in a bag. He
randomly grabs an apple for his friend and then randomly
grabs another apple for himself. What is the probability
that they both get a red apple?
The probability that they both get a red apple is, 15/28
What is probability?Probability is a mathematical term, which can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event. The possibility that an event will occur is measured by probability.
Probability of Event = Favorable Outcomes/Total Outcomes = X/n
The probability of Ed's friend grabbing a red apple is,
= 6 red apples / (2 green apples + 6 red apples)
= 6/8
= 3/4.
Then, the probability of Ed grabbing a red apple from the remaining apples is,
= 5 red apples / (2 green apples + 5 red apples)
= 5/7.
So, the probability that both Ed and his friend get a red apple is,
= 3/4 x 5/7
= 15/28
Hence, the probability is 15/28
To know more about Probability check:
https://brainly.com/question/30034780
#SPJ9
Which function defines (g•f)?
f(x)= log(5x)
g(x) = 5x + 4
A. (g•f)(x)= 5x log(5x) + 4log(5x)
B. (g•f)(x) = 5x + 4 + log(5x)
C. (g•f)(x) = 5x – 4 – log(5x)
D. (g•f)(x) = 5x log(5x) + 4
Answer:
A
Step-by-step explanation:
A. (g•f)(x)= log(5x) ( 5x + 4)=5x log(5x) + 4log(5x)
The function 5x log(5x) + 4log(5x) defines (g•f)
We have given that,
A. (g•f)(x)= 5x log(5x) + 4log(5x)
B. (g•f)(x) = 5x + 4 + log(5x)
C. (g•f)(x) = 5x – 4 – log(5x)
D. (g•f)(x) = 5x log(5x) + 4
We have to determine which function defines (g•f)
Where f(x)=log(5x) and g(x)=5x+5
What is the multiplication function?
A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function. Functions were originally the idealization of how a varying quantity depends on another quantity.
A. (g•f)(x)= log(5x) ( 5x + 4)=5x log(5x) + 4log(5x)
(5x+4)(log(5x))=5x(log(5x))+4(log(5x))
Therefore the option A is correct.
To learn more about the function visit:
https://brainly.com/question/6561461
#SPJ5
8 pencils for$2.24 i need help with my math can some one help me with it
Answer:
8 x 2.24 = 17.92
Pls mark me brainliest
Are you trying to find the price of 1 pencils?
If Yes The Answer is below.
Answer:
0.28
Step-by-step explanation:
To find the price of 1 pencils.
Divide 2.24 by 8 which gives you 0.28
Therefore the price of 1 pencils is 0.28
Graph y - 2 = -3/4 (x - 6)
Select two points on the line
Answer:
i dont understand the question can you write the rest of the question.
Step-by-step explanation:
n
Yesterday, Charlie had k baseball cards. Today, he got 24 more. Using k
Which value is a solution to 3y + 4 < 16?
Hello,
3y + 4 < 16
⇔ 3y < 16 - 4
⇔ 3y < 12
⇔ y < 12/3
⇔ y < 4
⇒ S = ] - ∞ ; 4 [
Express the answers in simplest form. A list contains the names of six anthropology students, two sociology students, and four psychology professor's new study, find the probability that the chosen student (a) A psychology student (c) A psychology student or an anthropology (d) Not a sociology student.
a) P(psychology student) = 1/3. b) P(psychology or anthropology student) = 5/6. c) P(not sociology student)= 5/6
How to find the probability that the chosen student(a) The probability of choosing a psychology student is the number of psychology students divided by the total number of students:
P(psychology student) = 4/(6+2+4) = 4/12 = 1/3
(b) The probability of choosing a psychology student or an anthropology student is the sum of the number of psychology and anthropology students divided by the total number of students:
P(psychology or anthropology student) = (4+6)/(6+2+4) = 10/12 = 5/6
(c) The probability of not choosing a sociology student is the number of non-sociology students divided by the total number of students:
P(not sociology student) = (6+4)/(6+2+4) = 10/12 = 5/6
Learn more about probability at https://brainly.com/question/24756209
#SPJ1
Suppose the true proportion of voters in the county who support a specific candidate is 0.38. Consider the sampling distribution for the proportion of supporters with sample size n = 168.
What is the mean of this distribution?
0.38
Correct
What is the standard error of this distribution?
Using the Central Limit Theorem, it is found that:
The mean is of 0.38.The standard error is of 0.0374.What does the Central Limit Theorem states about the sampling distribution of sample proportions?It states that for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean \(\mu = p\) and standard deviation \(s = \sqrt{\frac{p(1 - p)}{n}}\), as long as \(np \geq 10\) and \(n(1 - p) \geq 10\).
The estimate and the sample size are given by:
p = 0.38, n = 168.
Hence the mean is given by:
\(\mu = p = 0.38\)
The standard error is given by:
\(s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.38(0.62)}{168}} = 0.0374\)
More can be learned about the Central Limit Theorem at https://brainly.com/question/16695444
#SPJ1
Recall that the side length of the square was 14 units long. What is the base area of the prism?
Diameter of cylinder base - 19.8
base area of cylinder - 307.8
volume of cylinder - 9.234
Answer:
56
Step-by-step explanation:
The base area will be 4 times the side length
56 units
jessica dale and milan served a total of 77 orders jessica served 5 more orders than dale and milan served 2 times as many as dale how many did they each serve
Let be "j" the number of orders that Jessica served, "d" the number of orders that Dale served and "m" the number of orders that Milan served.
Based on the information given in the exercise, you can set up the following System of equations:
\(\begin{gathered} \begin{cases}j+d+m=77 \\ j=d+5 \\ m=2d\end{cases} \\ \end{gathered}\)The steps to solve it are shown below:
1. Substitute the second equation and the third equation into the first one:
\(\begin{gathered} j+d+m=77 \\ (d+5)+d+(2d)=77 \end{gathered}\)2. Solve for the variable "d":
\(\begin{gathered} 4d+5=77 \\ 4d=77-5 \\ \\ d=\frac{72}{4} \\ \\ d=18 \end{gathered}\)3. Substitute this value into the second original equation and evaluate:
\(\begin{gathered} j=d+5 \\ j=(18)+5 \\ j=23 \end{gathered}\)4. Substitute the value of "d" into the third equation and then evaluate:
\(\begin{gathered} m=2d \\ m=2(18) \\ m=36 \end{gathered}\)Therefore, the answer is:
- Jessica served 23 orders.
- Dale serverd 18 orders.
- Milan served 36 orders.
PLEASE HELP ME FAST!!!!!
Below are the data collected from two random samples of 500 American adults on the number of hours they work per day (rounded to the nearest hour):
Number of hours of work per day 6 7 8 9 10
Sample A: Number of adults 60 90 145 150 55
Sample B: Number of adults 70 80 140 145 65
Ryan concludes that adults spend a mean of 8 hours working each day. Malia thinks the mean is 9 hours. Who is correct—Ryan or Malia? Explain your answer in two or three sentences. Make sure to use facts to support your answer. (10 points)
The average number of hours that adults spend working each day is 8 hours and Ryan is correct because he got the average of 8 right.
We know that,
The sample mean is a statistic that is computed by taking the arithmetic mean of the values of a variable in a sample. If the sample is taken from probability distributions with a shared expected value, the sample mean is an estimator of that value.
The mean is gotten from the formula;
x' = ∑x/n
Number of hours of work per day are; 6, 7, 8, 9 and 10
Thus; sum up all of it
∑x = 6 + 7 + 8 + 9 + 10
∑x = 40
Mean is; x' = 40/5
x' = 8
Since Ryan concluded that the average is 8 hours,
Therefore,
We can say that Ryan is correct.
Read more about mean of data at;
brainly.com/question/24245867
#SPJ1
What translation would map C onto A?
A. (x – 7, y + 3)
B. (x + 3, y – 7)
C. (x – 3, y + 7)
D. (x + 7, y – 3)
Answer:
A
Step-by-step explanation:
consider the coordinates of points C and A
C (4, - 1 ) and A (- 3, 2 )
4 → - 3 in the x- direction is - 7
- 1 → 2 in the y- direction is + 3
then the translation rule is
(x, y ) → (x - 7, y + 3 )
Nicholas has nickels dimes and quarters that total $12.30the number of dimes is three more than twice the number of nickels. And the number of quarters is three times the number of nickels how many coins s of each kind does he have
Let x be the number of nickels that Nicholas has, y the number of dimes, and z the number quarters. Using the given information we can set the following system of equations:
\(\begin{gathered} 0.05x+0.10y+0.25z=12.30, \\ y=3+2x, \\ z=3x\text{.} \end{gathered}\)Substituting the second and third equations in the first one we get:
\(0.05x+0.10(3+2x)+0.25(3x)=12.30.\)Solving for x we get:
\(\begin{gathered} 0.05x+0.30+0.20x+0.75x=12.30, \\ 1x=12.30-0.30, \\ x=12. \end{gathered}\)Substituting x=12 in the second and third equations on the board, we get:
\(\begin{gathered} y=3+2(12)=3+24=27. \\ z=3(12)=36. \end{gathered}\)Answer: Nicholas has 12 nickels, 27 dimes, and 36 quarters.
Find the length of segment VM, if the length of segment NT = 14, segment MU = 8 and segment VT =
42.
Answer: VM = 16
Step-by-step explanation:
Parametric Equations
1.
Anytown High School is planning a play. The script calls for two characters to meet on stage.
Lauren starts at the point (0 feet, 6 feet) and travels horizontally at a rate of 1 foot per second.
Alex starts at the point (4 feet, 0 feet) and travels vertically at a rate of 2 feet per second. If
Alex and Lauren start wa lking at the same time, will they meet?
Although Alex and Lauren will both step into position 4,6, they will not do it at the same time, so they will not meet.
How do Alex and Lauren position will change?Lauren:
Initial position: 0,6Second 1: 1,6Second 2: 2,6Second 3: 3,6Second 4: 4,6Alex:
Initial position: 4,0Second 1: 4,2Second 2: 4,4Second 3: 4,6Second 4: 4,8Do they meet?Both will step in the position 4,6, However, Lauren will be in this positon in the second 4, while Alek will do it on the second 3.
Learn more about parametric equations in: https://brainly.com/question/12718642
#SPJ1
What is 8253813783926/72729229357328*0*63726296482638262736 = ?
Answer:
Step-by-step explanation:
yes
ASAP PLEASEEEEEEE!!!!!!! Describe the transformations from the parent function f(x) = x^2 to the function g(x) = (x+5)^2 - 2
a.) 2 units down, 5 units to the left
b.) 2 units to the right, 5 units up
c.) 2 units to the left, 5 units up
d.) 2 units down, 5 units to the right
The transformation from the parent function is a translation by (a.) 2 units down, 5 units to the left
How to describe the transformation from the parent function?From the question, we have the following function that can be used in our computation:
f(x) = x^2
g(x) = (x + 5)^2 - 2
Rewrite properly as follows
f(x) = x²
g(x) = (x + 5)² - 2
This means that
Parent function, f(x) = x²
Transformed function, g(x) = (x + 5)² - 2
First, we have the transformation to be:
From f(x) = x² to f'(x) = (x + 5)²
This means the function is translated left by 5 units
Next, we have:
From f'(x) = (x + 5)² to g(x) = (x + 5)² - 2
This means the function is translated down by 2 units
Hence, the transformation is 5 units left and 2 units down
Read more about transformation at
brainly.com/question/27224272
#SPJ1
15
A principal needs to order 1,437 T-shirts for students at her school. She rounds to the nearest hundred
to estimate the number of T-shirts to order. Will there be enough T-shirts for all the students? Explain.
There will not be enough T-shirts for all the students
How to determine if the T-shirts will be enough?From the question, the given parameters are:
Number of T-shirt = 1437
From the question, we understand that the principal approximates the number of T-shirts to the nearest hundred
When the number of T-shirts is approximated to the nearest hundred, we have
Approximation = 1400
By comparison, 1400 is less than 1437
This means that the T-shirts will not be enough
Read more about approximation at
https://brainly.com/question/13221614
#SPJ1
An experiment consists of rolling a single die and selecting a card from a standard deck. Use this information to answer the following three questions. What is the probability of rolling a 5 and selecting the ace of hearts
Answer:
1/160
Step-by-step explanation:
Assuming that you want to roll a 5 and then select the ace of hearts that would make this a sequence of events. In order to find the probability of this happening, you would need to multiply the probability of each of these events happening separately with one another.
Since there are a total of 6 possible outcomes when rolling a die (1,2,3,4,5,6) which rolling a 5 is only one of the options. Meaning that the probability of rolling a 5 is 1/5.
In a deck of cards, there are a total of 32 cards in the deck and only 1 of those cards is an ace of hearts. Meaning that the probability of getting the ace of hearts is 1/32. Now we simply multiply these two probabilities together to get the probability of the sequence.
1/5 * 1/32 = 1/160
Real-life Problems Question 8
After answering the presented question, we may conclude that expressions As a result, Sarah will have E61,600 left over from her loan after purchasing 8 limos.
what is expression ?In mathematics, you can multiply, divide, add, or subtract. An expression is constructed as follows: Number, expression, and mathematical operator A mathematical expression (such as addition, subtraction, multiplication, or division) is made up of numbers, variables, and functions. It is possible to contrast expressions and phrases. An expression or algebraic expression is any mathematical statement that has variables, integers, and an arithmetic operation between them. For example, the phrase 4m + 5 has the terms 4m and 5, as well as the provided expression's variable m, all separated by the arithmetic sign +.
a) Sarah can buy 8 limousines because:
600,000 / 67,300 = 8.91
Because she cannot purchase a fraction of a limousine, the maximum number of limos she may purchase is eight.
b) To determine how much of the loan is left over, deduct the total cost of the limos from the loan amount:
8 x 67,300 = 538,400
600,000 - 538,400 = 61,600
As a result, Sarah will have E61,600 left over from her loan after purchasing 8 limos.
To know more about expressions visit :-
https://brainly.com/question/14083225
#SPJ1
an air traffic controller is tracking two planes. to start plane A is at the altitude of 4000 feet and plane B is at an altitude of 3146 feet. plane A is gaining altitude at 33.5 feet per second and plane B is gaining altitude at 50.75 feet per second
the two planes will be at the same altitude of approximately 5675.48 feet after 49.45 seconds.
What is plane?A plane is a flat two-dimensional surface that extends infinitely in all directions. In geometry, a plane is defined as a surface that is completely flat and has no thickness. It is often represented as a coordinate system with two perpendicular axes, usually labeled as the x-axis and y-axis.
Assuming that the two planes maintain their rates of ascent, we can use the following equations to determine when the planes will be at the same altitude:
altitude of plane A = 4000 + 33.5t
altitude of plane B = 3146 + 50.75t
where t represents time in seconds.
To find the time at which the two planes will be at the same altitude, we can set the two equations equal to each other and solve for t:
4000 + 33.5t = 3146 + 50.75tSubtracting 3146 from both sides, we get:
854 + 33.5t = 50.75t
Subtracting 33.5t from both sides, we get:
854 = 17.25t
Dividing both sides by 17.25, we get:
t = 49.45 seconds
Therefore, it will take approximately 49.45 seconds for the two planes to be at the same altitude. To find the altitude at which they will meet, we can substitute this value of t into either equation. Using the equation for plane A, we get:
altitude of plane A = 4000 + 33.5(49.45) = 5645.08 feet
Using the equation for plane B, we get:
altitude of plane B = 3146 + 50.75(49.45) = 5675.48 feet
To learn more about equation:
https://brainly.com/question/29657983
#SPJ1
KL has endpoints at K(9, 19) and L(2, 16). Find the midpoint M of KL.
Write the coordinates as decimals or integers.
Answer: (5.5,17.5)
Step-by-step explanation: using the midpoint formula
Please help thank uuuuu
Answer:
12
Step-by-step explanation:
You simply add the coefficients together.
3 + 4 + 5 = 12