John has a bag of marbles the contains 12 red marbles, 20 green marbles, and 17 blue marbles. If John pulls one marble out of the bag, what is the probability that it will not be red?

Answer:

3h - 3k

Step-by-step explanation:

I hope that this answer will help

You have to distribute

Answer:

k= -20

Step-by-step explanation:

In y=kx , substitute 4 for x and -80 for y.

-80=k(4)

k= -80/4

k= -20

By clearing the expression using the LCD, the simplified form is 7/(3k).

To solve the expression using the least common denominator (LCD), we need to find the LCD of the denominators involved. Let's break down the steps:

Given expression: 1/(k) + 3/(3k) + 1/(3k)

Find the LCD of the denominators.

In this case, the denominators are k, 3k, and 3k. The LCD can be found by identifying the highest power of each unique factor. Here, the factors are k and 3. The highest power of k is k and the highest power of 3 is 3. Therefore, the LCD is 3k.

Rewrite the fractions with the LCD as the denominator.

To clear the fractions using the LCD, we need to multiply the numerator and denominator of each fraction by the missing factors required to reach the LCD.

For the first fraction, the missing factor is 3, so we multiply both the numerator and denominator by 3:

1/(k) = (1 * 3) / (k * 3) = 3/3k

For the second fraction, no additional factor is needed, as it already has the LCD as the denominator:

3/(3k) = 3/(3k)

For the third fraction, the missing factor is 1, so we multiply both the numerator and denominator by 1:

1/(3k) = (1 * 1) / (3k * 1) = 1/3k

After clearing the fractions with the LCD, the expression becomes:

3/3k + 3/3k + 1/3k

Combine the fractions with the same denominator.

Now that all the fractions have the same denominator, we can combine them:

(3 + 3 + 1) / (3k) = 7 / (3k)

Therefore, by clearing the expression using the LCD, the simplified form is 7/(3k).

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Answer:

b) √29

Step-by-step explanation:

Given: The origin is (0, 0), the point P is (2, -5).

We need to use the distance formula.

Distance formula =

Here x2 = 2, x 1 = 0, y1 =0, y2 = -5

Distance =

= √(4 + 25)

= √29

The answer is b) √29

Hope you will understand the concepts

Thank you!!

The length of the third side of the triangle is 2x+13.

According to the question,

We have the following information:

A triangle has a perimeter of 7x + 8. The first side of the triangle has a length of 3x, and the second side has a length of 2x − 5.

We know that perimeter of triangle is the sum of all three sides of triangle.

Let's take its third side to be y.

So, we have the following expression:

3x+2x-5+y = 7x+8

5x-5+y = 7x+8

Adding 5 on both the sides:

5x+y = 7x+8+5

5x+y = 7x+13

Subtracting 5x from both the sides:

y = 7x-5x+13

y = 2x+13

Hence, the correct option is B.

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Answer:

B. 2x+13

Step-by-step explanation:

I got it right on the test

It allows users to create, rename, and delete directories, as well as move files from one directory to another.

In case of DOS, a group of files and other folders and directories is called a directory.

DOS, or Disk Operating System, was the first widely used operating system for IBM-compatible personal computers.

A directory is a file system concept in which a group of files and other folders and directories is combined together.

The term folder is synonymous with the term directory. In Windows and other modern operating systems, the term folder is more commonly used instead of directory.

DOS utilizes directories to keep files organized. It allows users to create, rename, and delete directories, as well as move files from one directory to another.

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Answer:

2 <x <14

Step-by-step explanation:

Answer:

2/8 = 1/4 = 25%

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

Divide 2 by 8 and turn decimal into a percentage.

2 ÷ 8 = 0.25→25%

Answer:

A half is not a unit of measure for weight, so it is not possible to answer this question.

Answer:

114

Step-by-step explanation:

let 'n' = original value

(17.1 - n) / n = -85/100

cross-multiply:

1710 - 100n = -85n

1710 = 15n

n = 1710/15

n = 114

Answer:

25 : 1

Step-by-step explanation:

The diameter of the football is 5 times the diameter of the cricket ball. This means that the radius of the football is also 5 times the radius of the cricket ball.

Let the radius of the football be R.

Let the radius of the cricket ball be r.

This implies that:

R = 5r

Both balls are spherical.

The surface area of the cricket ball is given as:

\(a = 4\pi r^2\)

The surface area of the football is given as:

\(A = 4\pi R^2\)

\(=>A = 4\pi (5r)^2\\\\A = 100\pi r^2\)

Therefore, the ratio of their surface areas is:

A : a

\(100\pi r^2 : 4\pi r^2\)

= 100 : 4

25 : 1

Ratio of the surface area of football and cricket ball = 25 : 1

Recall:

Given:

By implication,

radius of football = 5 times radius of cricket ball

Let,

This means that:

R = 5r

Surface Area of Football:

A = 4 × π × (5r)²

A = 100πr²

Surface Area of Cricket ball:

a = 4 ×π × (r)²

a = 4πr²

Ratio of surface area of football and cricket ball = 100πr² : 4πr² = 25 : 1

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Answer:

x=33

Step-by-step explanation:

The angles of a straight line always add up to 180°.

Hence, (x+13)+(4x+2)=180 we can then remove the parenthesis and we get x+13+4x+2. Adding the two, we get 5x+15=180--->x=33

The two angles:

46° and 134°

completing the steps in the image, you should choose supplementary in the drop-down. Supplementary means the angles add up to 180 degrees In the next blank, put 4x+2. In the last blank, put 180 degrees.

Step-by-step explanation:

To find the ratio between Rohit's savings and expenditure, we need to divide his savings by his expenditure:

Savings / Expenditure = (1500 - 1250) / 1250 = 250 / 1250 = 1/5

The ratio between Rohit's savings and expenditure is 1/5.

To find the ratio between Rohit's expenditure and income, we need to divide his expenditure by his income:

Expenditure / Income = 1250 / 1500 = 5/6

The ratio between Rohit's expenditure and income is 5/6.

To find the ratio between Rohit's income and savings, we need to divide his income by his savings:

Income / Savings = 1500 / (1500 - 1250) = 1500 / 250 = 6/1

The ratio between Rohit's income and savings is 6/1.

The value of a is -5 after Fiona divided 3x² + 5x - 3 by 3x+2.

To find the value of a, we need to perform a polynomial division of 3x² + 5x - 3 by 3x + 2. The result of the division is a polynomial plus a remainder, which should be equal to ax + b for some constants a and b. The constant b represents the remainder over the divisor, so we can set the expression equal to b to find its value. When dividing 3x² + 5x - 3 by 3x + 2 using polynomial long division, we get:

            x                

3x + 2 | 3x² + 5x - 3

            - 3x² - 2x    

             3x - 3

            3x + 2        

                -5

Therefore, the remainder is -5, which is represented by the expression a = -5.

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Answer:

(x + 4)² - 4 = 0

Step-by-step explanation:

Given

x² + 8x + 12 = 0

To complete the square

add/ subtract ( half the coefficient of the x- term )² to x² + 8x

x² + 2(4)x + 16 - 16 + 12 = 0

(x + 4)² - 4 = 0

Answer: $6812.3

Step-by-step explanation: Just solve decreasing 15% each year

Answer:

50

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

Hope I understand your "f(x) = 12 over the quantity of 4 x + 2" correctly

f(x) = 12 / 4x +2

Now so they want a f(-1), as u can see they substituted the x for - 1, therefor do that the same to the right side

f(-1) = 12/ 4(-1) + 2

f(-1) = 12 / - 4+2

= 12/ - 2

= - 6

Answer:

The vertical line test can be used to determine whether a graph represents a function. ... If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output. A function has only one output value for each input value.

Step-by-step explanation:

Can i get braineist pls

According to Baddeley and Hitch's research, the most important factor in determining whether rugby players will remember a particular game is the amount of time that has elapsed since the game was played.

Specifically, players were more likely to remember games that occurred early in the season and those that were particularly important or emotionally charged, while they were less likely to remember games that occurred later in the season or those that were less meaningful or emotionally significant.

This phenomenon is known as the "serial position effect" and has been observed in other contexts as well.

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Answer:

$1.89

Step-by-step explanation:

11.34/6= $1.89 for one bell pepper

Answer:

3.8cm

Step-by-step explanation:

Answer: 36%

Step-by-step explanation:

The quadratic inequality that models the situation is given by:

y < -7.4(x - 25)² + 200.

The equation of a quadratic function, of vertex (h,k), is given by the rule presented as follows:

y = a(x - h)² + k

In which:

The vertex is of (25, 200), hence the parameters are as follows:

h = 25, k = 200.

Hence the equation is:

y = a(x - 25)² + 200.

When x = 30, y = 15, hence the leading coefficient is calculated as follows:

15 = a(30 - 25)² + 200

25a = -185

a = -185/25

a = -7.4.

Hence, considering that the company did not meet it's goals, the inequality is:

y < -7.4(x - 25)² + 200.

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8.987 ft/s rate of people moving apart 15 minutes after the woman starts walking.

The chain rule is a formula used in differential calculus to determine the derivative of a composite function.

If y = f(g(x)), then as per chain rule the instantaneous rate of change of function 'f' relative to 'g' and 'g' relative to x results in an instantaneous rate of change of 'f' with respect to 'x'.

Given:

dx/ dt = 4 ft/s, dy/dt = 5 ft/s

So, z²= ( x + y)² + 500²

Using Chain Rule

2z dz/dx = 2(x+ y) ( dx/dt + dy/dt) + 500

Now, 15 minutes after women starts

= 4 x 20 x 405

= 4800 ft

and, y = 5 x 15 x 605

         = 4500 ft

and, z= 4500+ 4800 /√(4500+ 4800)² + 500²  (4+ 5)

z=9300/ 9,313.43 x 9

z= 8.987

Hence, 8.987 ft/s  rate of people moving apart 15 minutes after the woman starts walking.

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