Mathematics College

Can someone answer this pls xx

Answers

Answer 1

Answer:

20 red and 100 blue

Step-by-step explanation:

give me brainliest please

Answer 2

20 red and 100 blue is the answer

Related Questions

There are 35 students in the drama club. 2 out of every 5 students in the club are boys. How many student clubs are boys?

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Answer:

Step-by-step explanation:

Please EXPLAIN how to solve. I don't know how to. I need answer ASAP!!! (Geometry)

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KlW by AAS angle angle side

Y is less than 4:
y<4?
Correct me if I'm wrong.

Answers

Answer:

That’s correct

Step-by-step explanation:

y < 4 does mean that y is less than 4. if it helps. Wherever the open side is, means that one is greater. I always look at it like an alligator eating the bigger number

What number decreased by 40 is 5 times that number?

Answers

Answer:

-10

Step-by-step explanation:

Let the number be x

x - 40 = 5x

⇒ -40 = 5x - x

⇒ 4x = -40

⇒ x = -40/4

⇒ x = -10

Answer:

-10

Step-by-step explanation:

Let the number be x

x - 40 = 5x

4x = -40

x = -10

Enter the sum of the numbers as the product of their GCF and another sum.

35 + 56

The sum of the numbers as a product of their GCF is . please help im on a test!

Answers

Answer:

Step-by-step explanation:

Explanation: The GCF of 56 and 64 is 8 , as 8 goes into 56 exactly 7 times and into 64 exactly 8 times. 8(8)+7(8)=8(7+8).

HELP NEEDED ASAP!
please answer question, Image below.

Answers

Answer:

18 eggs would be the correct answer

Step-by-step explanation:

Rewriting 3x^2=6x and solving with rewritten

Answers

Answer:

x = 0 , x = 2

Step-by-step explanation:

3x² = 6x ( subtract 6x from both sides )

3x² - 6x = 0 ← factor out 3x from each term

3x(x - 2) = 0

equate each factor to zero and solve for x

3x = 0 ⇒ x = 0

x - 2 = 0 ( add 2 to both sides )

x = 2

solutions are x = 0 , x = 2

9) You want to remodel the back yard and you need a lawn mower . You can rent one for $25 an hour with a down payment of $50 . Write an algebraic expression for this situation. Tell me how much you will spend if you rent the lawn mower for 8 hours.

Answers

We know that

• You can rent for $25 an hour.

• The downpayment is $50.

Notice that the rent depends on the number of hours, and the downpayment doesn't depend on any variable.

So, the expression would be$25h+50$

If you rent the lawn mower for 8 hours, then

$25(8)+50=200+50=250$You will pay $250.

Use the distributive property

Please help me to solve this question

Answers

Answer:

Step-by-step explanation:

Its obvi .. its 5 !!

Mrs. Girard bought a 2-ounce tube of eye cream. Each night, she carefully applies 0.1
ounces.
Write an equation that shows how the number of ounces of eye cream remaining, y, depend
on the number of nights Mrs. Girard uses it, X.
y =

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ANSWER: 1.9 eye cream
I HOPE THIS HELPS

solve by factoring
k2 +6k =16

Answers

Answer:

k=2 k=-8

Step-by-step explanation:

16) Critique the sample method and the survey used by the guild. You’ll want to use some of the following words in your critique: sample, bias, random, response-bias, undercoverage, non-response, voluntary response.

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Answer:

The critique of the sample method and survey used by the guild is as follows:

Sample: The sample used in the survey is not representative of the entire population. The survey was conducted only among the guild members, and hence it does not represent the views of non-members. This type of bias is called undercoverage bias.

Bias: The survey seems to suffer from selection bias, where the participants who responded may not represent the entire population. This type of bias is known as response bias. It is possible that the members who chose to participate in the survey have different views from those who did not respond. Furthermore, the survey did not specify how the participants were selected, and hence there may be other types of bias present in the survey.

Randomness: The survey did not use random sampling, which is a fundamental principle of survey research. A random sample ensures that every member of the population has an equal chance of being selected, which increases the representativeness of the sample.

Non-Response: The survey did not address the issue of non-response bias, where participants who choose not to respond may have different views from those who respond. The survey did not specify the response rate, and hence it is unclear how many members chose to participate in the survey.

Voluntary response: The survey seems to be a voluntary response survey, where members chose to participate voluntarily. This type of survey is known to suffer from bias because participants who respond are usually more motivated or have stronger opinions than those who do not respond.

In summary, the survey used by the guild suffers from various types of bias, which may affect the validity and generalizability of the results. To improve the validity and reliability of the survey, the guild should use random sampling and address issues such as non-response and response bias.

What is (f−g)(x)? f(x)=3x5+6x2−5 g(x)=2x4+7x2−x+16

Answers

Answer: We have f(x)=3x⁵+6x²-5 and g(x)= 2x⁴+7x²-x+16

(f-g)(x)= 3x⁵-2x⁴-x²+x-21

Step-by-step explanation:

Here we have,

Given : f(x)=3x⁵+6x²-5 and g(x)= 2x⁴+7x²-x+16

We know,

(f-g)(x)= f(x)-g(x)

= (3x⁵+6x²-5 ) - ( 2x⁴+7x²-x+16)

On subtracting g(x) from f(x) we get,

(f-g)(x)= (3x⁵+6x²-5 - 2x⁴-7x²+x-16)

On simplify,

(f-g)(x) =3x⁵-2x⁴-x²+x-21

Hence,

(f-g)(x) = f(x) - g(x) = 3x⁵-2x⁴-x²+x-21

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A manufacturer makes solid rubber balls. It takes 111.3 cubic inches of rubber to make 3 equally sized balls. Rounding to the nearest hundredth of an inch, what is the diameter of one of the balls? The diameter of a ball is approximately inches.

Answers

Volume is a three-dimensional scalar quantity. The diameter of a ball is approximately 4.138 inches.

What is volume?

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

The volume of solid rubber needed to make three equal size balls is 111.3 cubic inches. Therefore, we can write,

The volume of solid rubber = 3 (Volume of a single ball)

111.3 cubic inches = 3 × (4/3) × π × R³

111.3 cubic inches = 4 × π × R³

R = 2.069 inches

Since the diameter is twice of radius, therefore, the diameter of the rubber ball is,

Diameter = 2 × 2.069 inches = 4.138 inches.

Hence, The diameter of a ball is approximately 4.138 inches.

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Answer:

4.14

Step-by-step explanation:

I got it right on Edmentum.

Hook me up with a 5 star and a thanks :)

a) (10 pts) Re-express the given differential equation as a first order differential equation by utilizing matrix
and vector notation and in accordance with ()

= () form.
b) (10 pts) Is the system obtained in (a) stable, neutrally stable of unstable? Determine this using matrix.
c) (10 pts) Compute the eigenvalues and eigenvectors of matrix.
d) (10 pts) Using the results computed in (c) find and matrices and show that =
−
relationship
(i.e., the diagonalization relationship) is a valid relationship.

Answers

a) To re-express the given differential equation as a first-order differential equation using matrix and vector notation, we can rewrite it in the form:

$x' = Ax$

where x is a vector and A is a square matrix.

b) To determine the stability of the system obtained in part (a), we need to analyze the eigenvalues of matrix A.

If all eigenvalues have negative real parts, the system is stable.

If at least one eigenvalue has a zero real part, the system is neutrally stable.

If at least one eigenvalue has a positive real part, the system is unstable.

c) To compute the eigenvalues and eigenvectors of matrix A, we solve the characteristic equation

$det(A - \lambda I) = 0$,

where λ is the eigenvalue and I is the identity matrix.

By solving this equation, we obtain the eigenvalues.

Substituting each eigenvalue into the equation

$(A - \lambda I)v = 0$,

where v is the eigenvector, we can solve for the eigenvectors.

d) Once we have computed the eigenvalues and eigenvectors of matrix A, we can construct the diagonalization relationship as follows:

$A = PDP^{(-1)}$

where P is a matrix whose columns are the eigenvectors of A, and D is a diagonal matrix whose diagonal elements are the eigenvalues of A.

To show that this relationship is valid, we can compute $PDP^{(-1)}$ and verify that it equals A.

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х
у
1
3
5
3
10
3
15
3
20
Yes
or No
function?

Answers

Answer:

No . For Same X it can't assume different y.

The data are from a small moving company that moves people from urban apartment buildings to other urban apartment building in the same or different cities. The company needs assistance in predicting the labor hours for jobs so they can provide more accurate price quotes.
Run two separate regressions using the data in the sections of the spreadsheet titled Regression Model 1 and Regression Model 2. Use a 95% confidence level.
Fill in all the blanks below. Do not round any numbers except for when entering them in the blanks for this quiz, round these numbers to exactly 2 decimal places even if the number has only one or no decimal places. Use commas to separate thousands (e.g., 1225 should be entered as 1,225.00).
Regression Model 1
R Square expressed as a percentage rounded and carried out to two decimal places is ________% and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is _______%. Refer to the spreadsheet embedded in your Module 14 Regression document I provided you to see the calculation and format for answering this next question. The gap between R Square and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is 0.______%.
The overall regression model (was / was not) _______ significant.
Using square footage of 1,500 and mileage of 92, the model estimates that ______ hours of labor would be required, with a margin of error of _________ hours.
Regression Model 2
R Square expressed as a percentage rounded and carried out to two decimal places is _______% and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is _______%. Refer to the spreadsheet embedded in your Module 14 Regression document I provided you to see the calculation and format for answering this next question. The gap between R Square and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is 0.________%.
The overall regression model (was / was not) __________ significant.
Using square footage of 1,500, mileage of 92, and floors of 71, the model estimates that _________ hours of labor would be required, with a margin of error of ________ hours.
Model Selection
Because the R Square is (higher / lower) _________ in regression model 1 than in regression model 2 and the gap between R Square and Adjusted R Square is (smaller / larger) in regression model 1 than in regression model 2 _________ and the margin of error of the estimated labor hours is (smaller / larger) _________ in regression model 1 than in regression model 2 , we would characterize regression model (1 or 2) ___________ as being the better model.

Answers

Answer:

I wish I can read all the text

(a) what is the probability that a randomly selected integer chosen from the first 100 positive integers is divisible by 3 or 5? are the two events (choosing an integer divisible by 3 and choosing an integer divisible by 5 randomly from the first 100 positive integers) independent?

Answers

The probability that a randomly selected integer from the first 100 positive integers is divisible by 3 or 5 is 47/100. The events of choosing an integer divisible by 3 and choosing an integer divisible by 5 are not independent.

To find the probability that a randomly selected integer from the first 100 positive integers is divisible by 3 or 5, we need to count the number of integers in this range that are divisible by 3 or 5, or both.

There are 33 integers in the range from 1 to 100 that are divisible by 3: 3, 6, 9, ..., 99. Similarly, there are 20 integers in this range that are divisible by 5: 5, 10, 15, ..., 100. However, some of these integers are divisible by both 3 and 5, which means we have counted them twice. To find the total number of integers that are divisible by 3 or 5, we need to subtract the number of integers that are divisible by both 3 and 5 (which are the multiples of 15):

33 + 20 - 6 = 47

So, there are 47 integers out of the first 100 positive integers that are divisible by 3 or 5.

To find out whether the two events of choosing an integer divisible by 3 and choosing an integer divisible by 5 are independent, we need to check whether the probability of one event changes if the other event has already occurred.

Let A be the event of choosing an integer divisible by 3, and B be the event of choosing an integer divisible by 5. We can find the probabilities of these events as follows:

P(A) = 33/100

P(B) = 20/100

To check for independence, we need to compare the probability of A given that B has occurred (i.e., the probability of choosing an integer divisible by 3, given that we know it is also divisible by 5) with the probability of A without any information about B:

P(A|B) = P(A and B) / P(B)

Since the multiples of 15 are the only integers that are divisible by both 3 and 5, we have:

P(A and B) = P(15) / 100 = 1/20

So,

P(A|B) = (1/20) / (20/100) = 1/4

This means that if we know an integer is divisible by 5, the probability that it is also divisible by 3 is 1/4.

Now, let's compare this with the probability of A without any information about B:

P(A) = 33/100

Since P(A|B) ≠ P(A), we can conclude that the events of choosing an integer divisible by 3 and choosing an integer divisible by 5 from the first 100 positive integers are not independent.

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Stephanie is trying to figure out the sample size of an experiment. She knows the population SD is 41.5 and the SD of the sample averages is 2.7. What is the sample size of the experiment?

a. 15.37

b. 0.00367718446

c. 236.24

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b I smskksss snsjsjsjsjs wjqjwjqjwjjw xixxiidididid a hahaha dixixidjjdjjs w

Coin Calculation plz help

Answers

Answer:

You didnt add a question, file or possible answer choices

5x-1-3x≥4x+5

Someone help please

Answers

Answer:

-3≥x

Step-by-step explanation:

5x-1-3x≥4x+5

Combine like terms

2x-1≥4x+5

Subtract 2x from each side

2x-1-2x≥4x+5-2x

-1≥2x+5

Subtract 5 from each side

-1-5≥2x+5-5

-6≥2x

Divide by 2

-6/2≥2x/2

-3≥x

Answer:

See Image below for the steps:)

Step-by-step explanation:

what is 479.96 ÷ 129.72? one answer

Answers

Answer:

3.69996916435

Step-by-step explanation:

Answer:

the answer is 3.69996916

the answer in one number would be 4 because it's rounded to the nearest whole number

What is the answer pleaseee

Answers

Answer: 803.84cm3

Step-by-step explanation:
The formula for finding the volume of a cylinder is πr2h.
In other words, the area of the top face's circle times the height.

To find the circle's area, we first find the radius of the circle. Since the diameter is 8cm, we divide by 2 to get the radius, which is 4cm.

4cm squared is 4cm x 4cm, which is 16cm. 16cm times 3.14 is 50.24cm squared.

Now, we have the area of the circle. 50.24cm squared!

The height is 16cm, so to find the cylinder, we times the area of the circle by the height of the cylinder! So,

16cm x 50.24cm squared = 803.84cm cubed.

The volume of the can of soup is 803.84cm cubed.

triunghiul echilateral DEF este inscris in cercul C(O, 4radical6). Calculati aria triunghiului DEF.

Answers

Answer:

$\green{ \rule{500pt}{999999pt}}$

Evaluate -10 + x(-2)
When x = -9

Answers

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

-10 + x(-2)

x = -9

Step 2: Evaluate

Substitute in x: -10 - 9(-2)Multiply: -10 + 18Add: 8

Can someone show me the solution of this problem

Answers

The triple integral of the function over G, for both spherical and cylindrical coordinates, is (16π/15)(√2 - √3).

What is the triple integral of the function?

Cylindrical Coordinates:

The triple integral of f(x,y,z) = x² + y² over G in cylindrical coordinates is:

∫∫∫ f(r,θ,z) r dz dr dθ

= ∫₀^(√2) ∫₀^(2π) ∫₀^r (r² cos²θ + r² sin²θ) dz dr dθ (substitute x = r cosθ, y = r sinθ, z = z)

= ∫₀^(√2) ∫₀^(2π) r³/2 dr dθ (evaluate the z integral and simplify)

= (2π/5) [√2]⁵ (evaluate the r and θ integrals)

= 16π/5

Spherical Coordinates:

The triple integral of f(x,y,z) = x² + y² over G in spherical coordinates is:

∫∫∫ f(ρ,θ,φ) ρ² sinφ dρ dθ dφ

= ∫₀^(π/4) ∫₀^(2π) ∫_(√2/sinφ)^(√2)(ρ⁴ sin²φ cos²θ + ρ⁴ sin²φ sin²θ) sinφ dρ dθ dφ

(substitute x = ρ sinφ cosθ, y = ρ sinφ sinθ, z = ρ cosφ)

= 2π/3 ∫_(√2/sinφ)^(√2) ρ⁴ sinφ dρ ∫₀^(π/4) sin³φ dφ

(evaluate the θ integral)

= 2π/3 [ρ⁵/5]_(√2/sinφ)^(√2) [-cosφ]₀^(π/4)

(evaluate the ρ and φ integrals)

= (2π/15) [(√2)⁵ - (2/√3)(√2)⁵]

= (4π/15) [(√2)⁵ - (√6)(√2)⁴]

= (4π/15) (√2)⁴ [(√2 - √3)(√2 + √3)]

= (16π/15) (√2 - √3)

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Kathleen and ednardo both ran from the park entrance along the loop Kathleen started walking from the park entrance and gets a five mile Head Start of aarona the graph shows how far they have both traveled

Answers

Answer:

Step-by-step explanation:

They meet up when their distance traveled is the same (in other words, when the graphs intersect).

The graphs intersect x=75.

Graph the system of equations on your graph paper to answer the question.

{y=x−4y=−x+6

What is the solution for this system of equations?

Answers

Answer: (5 , 1)

Step-by-Step explanation:

hihi your problem is a system of question y = x-4 and y = -x+6 okay so graph them both normally and then find the point where they intersect which is gonna be a coordinate point, and that's your solution !!

y = x-4
the y intersect is going to be 4
the slope is a positive 1 , going up to the right, through the positive quadrant, line is facing to the right

y = -x+6
the y intersect is going to be -6
the slope is going to be a -1 , following up the opposite way the line is going to face the left

once you graph them both you'll see the point of intersection, the solution
make sure you drew your lines very clearly !!!!

the solution is x = 5 and y = 1 which is also (5 , 1)

hopefully this was helpful !

Your friend has a bag of yellow and purple candy. He wants to use them to play a game with you.

Purple is worth 2 points and yellow is worth three points. Pick 9 candies from the bag

Create a system of equations where the combination of the candies gives you a total of 22 points. Make sure you label and define your variables.

Answers

The system of equations where the combination of the candies gives you a total of 22 points are:

x + y = 9

2x + 3y = 22

How can we create system of equations?

To create the equations, we shall first define the variables:

x = the number of purple candies

y = the number of yellow candies

Next, we shall use the given information that purple candies are worth 2 points and yellow candies are worth 3 points.

Then, we would make sure that the total number of candies selected is 9.

The first equation represents the total number of candies selected:

x + y = 9

The second equation represents the total number of points obtained:

2x + 3y = 22

Therefore, the system of equations is:

x + y = 9

2x + 3y = 22

This is a system of linear equations.

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please do asaaaaapppp

Answers

Answer:

D. y ≤ 2 and y ≤ x

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