Solve.

A bag contains 2 red, 4 blue, and 4 yellow marbles. What is the probability of pulling a red marble, then a blue marble from the bag? (to the nearest tenth)

8.1
8.6
8.9

Answer:

yes

Step-by-step explanation:

yeyess

nice

very nice

i like

yes

.

The ferry can travel 7/18 of the distance between the two ports in one hour.To determine the fraction of the distance between the two ports that the ferry can travel in one hour, we need to find the rate at which the ferry is traveling.

We know that the ferry traveled 1/6 of the distance between the two ports in 3/7 hour. This information allows us to find the rate of the ferry's travel.

The formula to calculate rate is:

Rate = Distance / Time

Let's assume the total distance between the two ports is represented by D. Therefore, the distance traveled by the ferry is 1/6 of D. Similarly, the time taken is 3/7 hour.

Plugging these values into the formula, we get:

Rate = (1/6)D / (3/7) = (1/6)D * (7/3) = (7/18)D

The rate of the ferry's travel is (7/18)D.

To find the fraction of the distance the ferry can travel in one hour, we need to divide the distance traveled in one hour by the total distance:

Fraction = Distance in one hour / Total Distance = Rate / D = (7/18)D / D = 7/18.

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Answer:

B. (top right) 6y - 5x = 18

Step-by-step explanation:

Is the equation of the given line

y = -6/5 x - 7?

The x is missing.

If so, then the slope of the given line is -6/5.

A perpendicular line has a slope that is the negative reciprocal of -6/5, so we need a slope of 5/6.

A.

6x - 5y = 30

-5y = -6x + 30

y = 6/5 x - 6

Here the slope is 6/5, so this is not it.

B.

6y - 5x = 18

6y = 5x + 18

y = 5/6 x + 3

This is it.

C.

6x + 5y = 20 has negative slope, so it is not it.

D.

5x + 6y = 42 has negative slope, so it is not it.

The expression representing the situation is B = 3M + d, where B represents the number of baseball cards Bobby has, M represents the number of baseball cards Michael has, and d represents the additional amount that Bobby has compared to three times the number of cards Michael has.

Step 1: Assign variables.

Let's assign the variable "B" to represent the number of baseball cards Bobby has and the variable "M" to represent the number of baseball cards Michael has.

Step 2: Understand the relationship.

According to the given information, Bobby has "d" more than 3 times the number of baseball cards as Michael. This means that Bobby's number of baseball cards can be calculated by taking 3 times the number of cards Michael has and adding "d" to it.

Step 3: Create the expression.

To represent the situation, we can write the expression as: B = 3M + d.

Step 4: Interpret the expression.

In this expression, "3M" represents 3 times the number of baseball cards Michael has, and "d" represents the additional amount that Bobby has compared to that.

Therefore, the expression B = 3M + d represents the situation where Bobby has "d" more than 3 times the number of baseball cards as Michael. This expression allows us to calculate Bobby's number of cards based on the given relationship between their card counts.

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Answer:

Step-by-step explanation:

Answer:

x > -2

Step-by-step explanation:

The line on the graph points toward the right, so it would be a greater than sign ( > ). The sign is underlined because the line dot is filled in. If it wasn't filled in, it would not be underlined

The point on the line starts at negative 2.

hope this helps :)

Answer:

$5.81

Step-by-step explanation:

Let n = no. of nickels

     d = no. of dimes

     p = no. of pennies

     q = no. of quarters

p = .12(50) = 6

d = .38(50) = 19

n = 6 + p = 6 + 6 = 12

q = 50 - 6 - 19 - 12 = 13

Amt of money = 6(1) + 12(5) +19(10) + 13(25)

                        = 6 + 60 + 190 + 325

                        = 581 cents = $5.81

Answer:

Sabrina necesito 8 horas para llegar a su casa mientras que Diana necesito solo 3.4 horas.

Step-by-step explanation:

debemos resolver la siguientes equaciones:

A + B = 11.4

65A + 50B = 690

donde:

A = tiempo que le toma a Sabrina llegar a su casa

B = tiempo que le toma a Diana llegar a su casa

A = 11.4 - B

65 (11.4 - B) + 50B = 690

741 - 65B + 50B = 690

741 - 690 = 65B - 50B

51 = 15B

B = 51 / 15 = 3.4 horas

A = 11.4 - 3.4 = 8 horas

Answer:

i tried my best. But its not worth it

sowwy

Answer:

0-89x=78/-43

Step-by-step explanation:

Answer:

I gottam

Step-by-step explanation:

look it up on google

Answer:

an= a1 +(n-1)*4

Step-by-step explanation:

a1 = 1, a2 =5, a3 = 9, a4= 13,... an= ?

we see that each term is getting bigger so usually that will happen because of addition or multiplication-in our case add 4 to previous term

a1 = 1,

a2 = a1+(2-1) 4 = 1+4 = 5,

a3 = a1 + (3-1)*4 = a1+8 = 1 + 8 = 9,

a4= a1 + (4-1)*4 = a1 + 12 = 1+12= 13,

...

an= a1 +(n-1)*4

Answer:

Step-by-step explanation:

Since there are 985 square feet to cover, and it costs 12.50 per square foot, you multiply 12.50 by 985 to get 12,312.50, the total cost and answer.

Answer:

The second one, the third one, and the fifth one.

Step-by-step explanation:

Just look at the proportions and see id the function matches the proportion. Use "soh cah toa" or "sin is opposite/hypotenuse, cos is adjacent/hypotenuse, and tan is opposite/adjacent." Hope this helps.

Answer:

p(x) = (x-a)(x-b)(x-7) - a and b can be whatever you want, any real numbers

Step-by-step explanation:

If you plug in 7, you need to multiply the other two numbers by 0, which will result in 0. There are 3 factors since it must be a 3rd degree polynomial

Hope this helps! Please give brainliest!

A discrete probability distribution is a statistical distribution that relates to a set of outcomes that can take on a countable number of values, whereas a continuous probability distribution is one that can take on any value within a given range.Therefore, the main difference between the two types of distributions is the type of outcomes that they apply to.

An example of a discrete probability distribution is the probability of getting a particular number when a dice is rolled. The possible outcomes are only the numbers one through six, and each outcome has an equal probability of 1/6. Another example is the probability of getting a certain number of heads when a coin is flipped several times.

On the other hand, an example of a continuous probability distribution is the distribution of heights of students in a school. Here, the range of heights is continuous, and it can take on any value within a given range.

The expected value of a probability distribution measures the central tendency or average of the distribution. In other words, it is the long-term average of the outcome that would be observed if the experiment was repeated many times.

For a discrete probability distribution, the expected value is computed by multiplying each outcome by its probability and then adding the results. In mathematical terms, this can be written as E(x) = Σ(xP(x)), where E(x) is the expected value, x is the possible outcome, and P(x) is the probability of that outcome.

For example, consider the probability distribution of the number of heads when a coin is flipped three times. The possible outcomes are 0, 1, 2, and 3 heads, with probabilities of 1/8, 3/8, 3/8, and 1/8, respectively. The expected value can be computed as E(x) = (0*1/8) + (1*3/8) + (2*3/8) + (3*1/8) = 1.5.

Therefore, the expected value of the distribution is 1.5, which means that if the experiment of flipping a coin three times is repeated many times, the long-term average number of heads observed will be 1.5.

The triangle with side lengths of  48 in., 56 in., and 83 in.  is obtuse, because 832> 48² +56²

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

here, we have,

The side lengths of the triangles are 48 in., 56 in., and 83 in

The smallest side lengths are: 48 in., 56 in

The sum of the squares of these side lengths is

48^2+ 56^2

For the triangle to be obtuse, then the following must be true

83^2> 48² +56²

Evaluate the exponents

6889> 5440

The above inequality is true.

Hence, the triangle is obtuse, because 83^2> 48² +56²

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Imagine that a survey of randomly selected people finds that people who used sunscreen were more likely to have been sunburned in the past year.

There are several possible explanations for the finding that people who used sunscreen were more likely to have been sunburned in the past year.

However, without additional context or data, it is difficult to determine the most likely explanation definitively. Here are a few possible explanations to consider:

1. Ineffective or improper use of sunscreen: It is possible that the individuals who reported using sunscreen did not apply it correctly or did not reapply it as recommended.

Inadequate application or failure to follow proper sunscreen usage guidelines could result in insufficient protection from the sun's harmful rays, leading to sunburn.

2. Self-selection bias: It is possible that individuals who have previously experienced sunburns may be more likely to use sunscreen. They may be more aware of the potential risks and take precautions, including using sunscreen.

This could create an association between sunscreen use and sunburn, even though sunscreen itself is intended to prevent sunburn.

3. Recall bias: The survey responses may be subject to recall bias, where individuals may inaccurately remember or report their sunscreen use and sunburn experiences.

Memory limitations or subjective perceptions of sunburn severity could influence the reported data and the observed association between sunscreen use and sunburn.

4. Confounding factors: There may be other factors or variables at play that are related to both sunscreen use and sunburn. For example, individuals who engage in activities that increase sun exposure or who have certain skin types may be more likely to both use sunscreen and experience sunburn.

It is important to note that further investigation, including more detailed surveys, data collection and statistical analysis, would be necessary to determine the most likely explanation for the observed association between sunscreen use and sunburn.

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The most appropriate choice for percentage will be given by-

14 categories can be carried

What is Percentage?

Percentage is a ratio expressed as a percentage of 100.

Total area of selling space = \(2500 ft^2\)

Percentage of space used for isles = \(30\) %

Area of space used for isles = \(\frac{30}{100} \times 2500\)

                                               = \(750 ft^2\)

Area of space left = \(2500 - 750\)

                              = \(1750 ft^2\)

Area of space reserved for each category =  \(125 ft^2\)

No of categories = \(\frac{1750}{125}\)

                            = \(14\)

14 categories can be carried

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Formula of  significance of  test as a function and value produces significance level is given by  F(x)  = 1 - \(e^{(-x /\mu)}\), for x ≥ 0 with p-value  = \(e^{(-x /\mu)}\), for x ≥ 0 and  x = μ log(1/α)respectively.

The significance of the test can be calculated using the following formula,

p-value = P(X > x),

where X is the duration of the observed call

And x is the cutoff value for distinguishing between voice and data calls.

Since X is an exponential random variable with expected value μ,

The probability density function of X is equal to,

f(x) = (1/μ) × \(e^{(-x /\mu)}\), for x ≥ 0

The cumulative distribution function CDF of X is,

F(x) = P(X ≤ x)

      = \(\int_{0}^{x}\) f(t) dt

      = 1 - \(e^{(-x /\mu)}\) for x ≥ 0

The significance of the test is,

p-value = P(X > x)

             = 1 - F(x)

             = \(e^{(-x /\mu)}\), for x ≥ 0

The value of x that produces a significance level α.

Since the exponential distribution is a continuous distribution,

Use the inverse of the CDF to find x.

Let F⁻¹ be the inverse of the CDF of X.

Then,

P(X > F⁻¹(1 - α)) = α

Substituting F(x) = 1 - \(e^{(-x /\mu)}\), we get,

P(X > μ log(1/α)) = α

The value of x that produces a significance level α is,

x = μ log(1/α)

Therefore, the formula of  significance of the test as a function F(x)  = 1 - \(e^{(-x /\mu)}\), for x ≥ 0 with p-value  = \(e^{(-x /\mu)}\), for x ≥ 0 .

The value produces significance level is x = μ log(1/α).

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Given:

f(3)=10

The rate of change over the interval 3≤x≤5 is 15.

To find:

The value of f(5).

Solution:

The formula to find the slope or rate of change of function f over the interval [a,b] is

\(m=\dfrac{f(b)-f(a)}{b-a}\)

Using this formula, the the rate of change of a function f over the interval 3≤x≤5 is

\(m=\dfrac{f(5)-f(3)}{5-3}\)

Rate of change is 15 and f(3)=10. So,

\(15=\dfrac{f(5)-10}{2}\)

Multiply both sides by 2.

\(30=f(5)-10\)

\(30+10=f(5)\)

\(40=f(5)\)

Therefore, the value of f(5) is 40.

Answer:

where are the answer choices?

Step-by-step explanation:

Answer:

P'(4, 5)   Q'(5, 3)   R'(1, 1)

Step-by-step explanation:

When rotating a point 90 degrees counterclockwise about the origin our point T(x,y) becomes T'(-y,x).

Answer:

13

Step-by-step explanation:

First find how many seconds are in 10 minutes. 60*10=600. Now divide. 600/45 is 13.33 and we cant round so the answer is 13.

Answer: 13

Step-by-step explanation:

There are 60 seconds in a minute. 10 minute=600 seconds. 600/45=13.3. 45 goes into 600 13 times with a remainder. (don't forget to round because you can seal part of a bottle. 13 bottles can be sealed in 10 minutes.

The following operations are used to transform the quadratic equation y = x² into parabolas in standard form:

Case 1

Horizontal translation, vertical translation. Horizontal stretch.

Case 2

Horizontal translation, vertical translation. Reflection in the x-axis, vertical stretch.

Case 3

Horizontal translation, vertical translation. Horizontal stretch.

In this question we find three cases of parabolas in standard form, that is, quadratic equations of the form:

y - k = a · (x - h)²

Where:

This parabola is translated both horizontally and vertically by using the following definitions:

Horizontal translation

x → x - a, where a > 0 for rightward translation.

Vertical translation

y → y - b, where b > 0 for upward translation.

Horizontal dilation

f(x) → f(k · x), where k is a non-negative real number.

Vertical dilation

f(x) → k · f(x), where k is a non-negative real number.

Reflection in the x-axis

f(x) → - f(x)

The procedure is summarize below:

Finally, we summarize the procedure for each case:

Case 1

g(x) = x²

g(x) = [(1 / 2) · x²]

g(x) + 4 = [(1 / 2) · (x - 2)]²

Horizontal shift: 2 units right, vertical shift: 4 units down. Horizontal stretch.

Case 2

f(x) = x²

f(x) = - (1 / 2) · x²

f(x) - 2 = - (1 / 2) · (x - 4)²

Horizontal shift: 4 units right, vertical shift: 2 units down. Reflection in the x-axis, vertical stretch.

Case 3

h(x) = x²

h(x) = 2 · x²

h(x) - 5 = [2 · (x + 2)]²

Horizontal shift: 2 units left, vertical shift: 5 units up. Horizontal stretch.

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Step-by-step explanation:

Use Pyhtagorean theorem (for right triangles)

c^2 = a^2 + b^2

c^2 = (2.2)^2 + (0.6)^2

c^2 = 5.2

c= sqrt 5.2 =2.28 mm

Answer:

The formula for the vertex of the parabola is -b/a. Plugging this in we get         -(-4)/1 or 4.

Answer:

Step-by-step explanation:

Option C 1 and 3 is the correct answer

Answer:

First, let's address the general case.

When we have two points (a,b) and (c,d)

The distance between those points can be written as:

D = √( (a - c)^2 + (b - d)^2)

In this case, the points are:

(-2,4) and (2,4)

Then the distance is:

D = √( (-2 - 2)^2 + (4 - 4)^2) = √(-4)^2 = 4.

The equivalent expression to this is: |-2| + |2|

because:

I-2I = 2

I2I = 2

I-2I + I2I = 2 + 2 = 4.

Answer:

D = √( (a - c)^2 + (b - d)^2)

In this case, the points are:

(-2,4) and (2,4)

Then the distance is:

D = √( (-2 - 2)^2 + (4 - 4)^2) = √(-4)^2 = 4.

The equivalent expression to this is: |-2| + |2|

because:

I-2I = 2

I2I = 2

I-2I + I2I = 2 + 2 = 4.

Step-by-step explanation: