solve the inequality $\frac{29}{289z<\frac{16}{161}z$. try to solve the problem without doing a lot of messy computations!

The probability that you take different colors in two"picks" is 31/45.

You could choose one red followed by one blue, one blue followed by one red, one blue followed by one black, one black followed by one blue, one black followed by one red, or one red followed by one black.

P( different colors) = P( one blue followed by one red ) +P( one red followed by one blue) + P( one blue followed by one black ) +P( one black followed by one blue) +P( one black followed by one red ) +P( one red followed by one black)

P(one blue followed by one red) = (10/20)( 6/19) = 3/19

P(one red followed by one blue) = (6/20)( 10/19) = 3/19

P(one blue followed by one black) = (10/20)( 4/19) = 2/19

P(one black followed by one blue) = (4/20)( 10/19) = 2/19

P(one red followed by one black) = (6/20)( 4/19) = 6/95

P(one black followed by one red) = (4/20)( 6/19) = 6/95

P(different colors )= 3/19 + 3/19 + 2/19 + 2/19 + 6/95 + 6/95
                                = 31/45

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The Length and width of each pen is 6 feet by 8 feet. The 8 feet side is the adjacent side

An equation is an expression that is used to show the relationship between two or more numbers and variables.

Let x and y represent the length and width of the ship pen (or pig pen) since they have same area and y is the adjacent side. Since both pens are adjacent to each other, he has 48 feet of fencing to make the pens, hence:

Perimeter = x + x + y + x + x + y + y

48 = 4x + 3y

4x = 48 - 3y

x = 12 - (3/4)y

Area = (x + x)y

Area (A) = 2xy

substituting, x = 12 - (3/4)y:

A = 2(12 - (3/4)y)y

A = 24y - (3/2)y²

The maximum area is at A' = 0:

A' = 24 - 3y

24 - 3y = 0

3y = 24

y = 8 feet

x = 12 - (3/4)y = 12 - (3/4)(8) = 6 feet

The Length and width of each pen is 6 feet by 8 feet.

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The volume for the largest box will be 1.056 foot³. This can find out by application of differentiation.

What is AOD?

AOD is nothing but application of differentiation. It implies scopes where we can use differentiation to make our calculations easy.

Here, given

Length and breadth = 2,3 foot

Let us consider length of side of square = x

So, after cutting squares left sides of rectangular sheet = 2-2x , 3-2x

So, volume = (2-2x)*(3-2x)*x

                v = 4x³ - 10x² + 6x

To find largest volume , [tex]\frac{dv}{dx}[/tex] = 0

                 [tex]\frac{dv}{dx}[/tex] = 12x² - 20x + 6

                12x² - 20x + 6 = 0

                x = 0.4 , 1.3

But, for 1.3 volume will be negative i.e. not possible.

So, volume = 2.2*1.2*0.4

                   = 1.056 foot³

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If mean of 11 numbers is 7 one of the numbers, 13, is deleted then the mean of remaining 10 numbers is 6.4

The mean of 7 numbers = 11

We know,

Mean = Sum of the terms / Number of terms

Substitute the values in the equation

11 = Sum of the terms / 7

The sum of the terms = 11 × 7

= 77

Number 13 is deleted

Sum of the terms = 77 - 13

= 64

Number of terms = 11 - 1

= 10

The mean = Sum of the terms / Number of terms

Substitute the values in the equation

= 64 / 10

= 6.4

Hence, the mean of the remaining 10 numbers is 6.4

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The expression  -3/10 X (-8/15) is positive

Expression

Expression in mathematics has two or more variables, terms and constants. Also, arithmetic expression contains only numbers and mathematical operators and algebraic expression

The expression has negative sign and from mathematical calculation we already know the following relation:

+ x + = +

positive multiply by positive equals Positive

- x - = +

Negative multiply by Negative equals Positive

+ x - = -

Positive multiply by Negative equal Negative

hence,   - [tex]\frac{3}{10}[/tex] x - [tex]\frac{8}{15}[/tex]

The negative sign multiply by  -3/10 X (-8/15) sign will give positive.

Therefore, the expression  -3/10 X (-8/15) is positive.

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Answer:

  A.  n ≥ 11

Step-by-step explanation:

You have a triangle with sides (n), (n-3), and 2(n-2). Its perimeter is at least 37 units, and you want to know the value of n.

The perimeter is the sum of the side lengths:

  P = (n) +(n -3) +2(n -2)

  P = n + n -3 +2n -4

  P = 4n -7

The perimeter is at least 37, so we have ...

  P ≥ 37

  4n -7 ≥ 37

  4n ≥ 44 . . . . . . . add 7

  n ≥ 11 . . . . . . . divide by 4

The value of n is at least 11.

The expression 15 × (1/4) can be expressed in radical form as √225/√16.

In mathematics, the symbol √ is used to represent or show that a number is a radical. Radical expression is defined as any expression containing a radical (√) symbol.

The expression 15 × (1/4) can be rewritten as follows;

the first number 15:

15 = √(15 ×15)

15 = √225

also the fraction (1/4):

1/4 = √[(1 × 1)/(4 × 4)]

1/4 = √(1/16)

1/4 = 1/√16

So we have the expression;

15 × (1/4) = √225 × 1/√16

15 × (1/4) = √225/√16.

Therefore,√225/√16 is the radical form for the expression 15×1/4.

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The difference in b-tree and b +tree, b -tree is a self balancing tree data structure that maintains sorted data and b +tree is a modified version of b -tree.

b -tree is used to sort the data with various pieces facilities such as insertion ,deletion and search etc  whereas b +tree is a modified version of b -tree providing all the functions smoothly and quickly .

In b -tree, both internal nodes and leaf nodes are used to store records and keys whereas in b +tree keys are stored in internal nodes whereas records are storing leaf nodes

In b +tree, no duplication is allowed but in b +tree duplication may occur

A b +tree usually preferred as an access structure to a data file as as the height of the tree remains balanced and less as compared to b -tree . We can assess the data stored in b +tree sequentially as well as directly . keys are used for indexing . Faster search queries as the data is stored only on a leaf nodes.

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The probability that the sample mean would be less than 43.4 dollars is 0.9292.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true.

From the information, the mean cost of a five pound bag of shrimp is 42 dollars with a variance of 49 and a sample of 54 bags of shrimp is randomly selected.

Therefore, the probability will be:

P(x < 43.4)

Using normal distribution

= P(z < 43.4 - Mean( / 7/✓54)

= P(z < 43.4 - 42( / 7/✓54)

= P(z < 1.4697)

= 0.9292

The probability is 0.9292.

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Answer:

0.13, 0.16, 0.19, 0.22

Step-by-step explanation:

You are adding 0.03 each time

Answer:

0.13, 0.16, 0.19, 0.22

Step-by-step explanation:

Add 0.03 to each.

We select the option that corresponds to a random number between 1 and 10. We repeat this process until we get 15 good roses.

In the given question, one float decorator found that 10% of the bundles of roses delivered will not open in time for the parade.

20% of the bundles of roses delivered will have bugs on them and be unusable.

60% of the bundles of roses will turn out to be beautiful.

The rest of the bundles of roses delivered will bloom too early and start to discolor before January 1.

We have to conduct a simulation to estimate how many roses the float decorator will need to purchase to have 15 good bundles of roses to place on the float.

We also have to describe how you will use a random number table to conduct this simulation.

The random number table is

Now we select the option that corresponds to a random number between 1 and 10.

We repeat this process until we get 15 good roses.

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Answer:

Step-by-step explanation:

You want to find the distance traveled by light in km for periods of 1–5 seconds at a speed of 299,792,458 m/s.

The speed is given in meters per second, and the table values are wanted in kilometers. There are 1000 meters in 1 km, so it can be convenient to convert the speed to km/s before doing other calculations.

  (299,792,458 m/s) / (1000 m/km) = 299,792.458 km/s

The distance is found by multiplying the speed by time:

  d = 299,792.458t

It is convenient to let a calculator do the multiplication (and rounding). The attachment shows the result of using t = {1, 2, 3, 4, 5}.

The distances are, respectively, {299792, 599585, 899377, 1199170, 1498962} km.

Probability up to 4 decimal would be 0.0694.

Data: mean = 21.5, standard deviation Σ = 5

n = 55

μ = 21.5

n = 5 √55 = 0.6742

P( X < 20.5)

= P((μ X ) / Σbar X < (20.5 - 21.5) / 0.6742)

= P(z < -1.48)

= 0.0694              

Using standard normal table.

Probability = 0.0694

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty. The higher the probability of an event, the more likely it is that the event will occur. A simple example is the tossing of a fair (unbiased) coin. Since the coin is fair, the two outcomes ("heads" and "tails") are both equally probable; the probability of "heads" equals the probability of "tails"; and since no other outcomes are possible, the probability of either "heads" or "tails" is 1/2.

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Answer:

4

Step-by-step explanation:

(8+2-4)+(3-5)

(10-4)+(-2)

6-2

4

Hopes this helps please mark brainliest

Assuming that ΔABC has equal sides AB and AC, we can say that AD is parallel to BC hence∠A=∠B.

What is Congruency?

ongruent refers to things that are exactly the same size and shape. Even if we flip, turn, or rotate the forms, the shape and size should remain the same.

from △ABD and △ACD,

AB=AC ,AD is common

∠ADB=∠ADC, since both are right angles.

by SSA congruence

△ABD≅△ACD

therefore base angles are equal.

use sine rule,

a/sinA = b/sinB = c/sinC

by definition of isosceles triangle, any two sides are equal

w.l.o.g. let, a=b

asinA=asinB=csinC

asinA=asinB

aa=1=sinAsinB

⟹sinA=sinB

and ∠A and ∠B are less than 180.

therefore ∠A=∠B

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In 2000, cable was available in 45683700000 homes.

Rather than being expressed as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100. Nothing is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent. You divide the part of the whole by the whole and multiply the result by 100 to get the percentage.

In 1980, 17700000 = 25.8%\s1% = 4566600000

Then, in 2000, there were 45683700000 households (17 700 000 + 4566 600 000).

Comparing two amounts while rebasing the second amount to 100 is the simplest way to use percentages. Let's assume that we are interested in the proportion of employed women who are female.

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Answer:the legth is 40

Step-by-step explanation:

If -4 -1 and 1 1 are eigenvectors of a matrix corresponding to the eigenvalues and , respectively, then and x.

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The a)estimated error in area is 21.352[tex]cm^2[/tex], b)relative error is 0.0235 and c)percentage error is 2.35%.

Given,

radius of disk, r=17cm

maximum error=0.2cm

a)estimation of maximum error in calculated area,

area of disk,

[tex]A=\pi\ r^2[/tex]

differentiating on both sides

[tex]dA=2\pi\ rdr\\[/tex]

here dr = 0.2cm which is error

[tex]dA=2\pi\(17)(0.2)\\\\\\dA=21.352\ cm^2[/tex]

b)To find relative error use formula,

Relative error=[tex]\frac{dA}{A}[/tex]

[tex]=\frac{21.352}{\pi*17^2}\\\\=\frac{21.352}{907.46}\\\\=0.0235[/tex]

c)then percentage error will be

percentage error=0.0235*100=2.35%

Thus, the estimated error in area is 21.352[tex]cm^2[/tex],relative error is 0.0235 and percentage error is 2.35%.

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The solution for x in the inequality expression is x < -8

From the question, we have the following inequality expression that can be used in our computation:

-4x+5>37

Subtract 5 from both sides of the inequality

So, we have

-4x + 5 - 5 >37 - 5

Evaluate the like terms

This gives

-4x > 32

Divide both sides by -4

x < -8

Hence, the solution is x < -8

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Answer:

8+8-8×1

8+8-8

16-8

8 Ans.

The quadratic function, f(x) = 3·x² + 6·x, has the following values;

1. The function has a minimum value

2. The y-intercept of the function is (0, 0)

The axis of symmetry is; x = -1

The x-coordinate of the vertex is; x = -1

3. The table of values can be presented as follows;

x   [tex]{}[/tex]-2    -1    0

f(x) [tex]{}[/tex]0    -3     0

The vertex is (-1, -3)

4. Please find attached the graph of the function

A quadratic function is a function that has 2 as the highest power of the variables.

The specified function is; f(x) = 3·x² + 6·x

1. The coefficient of x² in the specified  quadratic function, which indicates the existence of a minimum or maximum value is positive, therefore, the function has a minimum value

2. The y-intercept is the value of the function when x = 0, therefore;

f(0) = 3 × 0² + 6 × 0 = 0

Therefore, at the y-intercept, x = 0, and f(x) = 0

The y-intercept is (0, 0)

The axis of symmetry is a line that passes through the vertex

A the vertex, we get, f'(x) = 6·x + 6 = 0

Therefore;  6·x + 6 = 0

6·x = -6

x = -6/6 = -1

f(-1) = 3·(-1)² + 6 × (-1) = -3

The vertex is (-1, -3)

Therefore, the  axis of symmetry is the line x = -1

The x-coordinate of the vertex of the function is; x = -1

3. A table of values for the function can be presented as follows;

x    [tex]{}[/tex]           f(x)

-6    [tex]{}[/tex]           72

-5     [tex]{}[/tex]          45

-4     [tex]{}[/tex]          24

-3    [tex]{}[/tex]           9

-2    [tex]{}[/tex]           0

-1    [tex]{}[/tex]           -3

0    [tex]{}[/tex]           0

1    [tex]{}[/tex]            9

2     [tex]{}[/tex]           24

3    [tex]{}[/tex]            45

4    [tex]{}[/tex]            72

5    [tex]{}[/tex]             105

4. . Please find attached the graph of the function created with MS Excel

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c=1/2  which makes fx|y (x, y) a valid conditional probability mass function.

What is conditional probability?

The possibility of an event or outcome occurring based on the existence of a prior event or outcome is known as conditional probability. It is determined by multiplying the likelihood of the earlier event by the increased likelihood of the later, or conditional, event.

Given that;

p(x) = [tex]c (\frac{2}{3} )^n[/tex]   where x = 1,2,3,........

for getting value of c we are using the expression :

[tex]\sum_{n=1}^{\infty} c(\frac{2}{3})^n = 1[/tex]

[tex]c\sum_{n=1}^{\infty} (\frac{2}{3})^n = 1[/tex]

Since we want p(x) to be a Probability Mass Function, your approach is correct, since for any such function

fX:A→[0,1],X:S→A⊆R, it is :

[tex]\sum _{x\in A} \ fX(x)=1[/tex]

As long as you've correctly understood that condition, you can proceed with your specific exercise as follows:

[tex]\sum_{n=1}^{\infty} c(\frac{2}{3})^n = 1[/tex]

⇔ [tex]c\sum_{n=1}^{\infty} (\frac{2}{3})^n = 1[/tex]

⇔2c = 1

⇔c = 1/2

Hence c =  1/2 is the valid conditional probability mass function.

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The cost per ounce in both options is the same. Then the correct option is D.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The rate is the ratio of the amount of something to the unit.

Jorge wants to buy a drink.

Choice 1: 24-ounce cup for $1.92

Choice 2: 12-ounce cups for $0.96 each

The cost per ounce in choice 1 is calculated as,

⇒ $1.92 / 24

⇒ $0.08 per ounce

The cost per ounce in choice 2 is calculated as,

⇒ $0.96 / 12

⇒ $0.08 per ounce

The cost per ounce in both options is the same. Then the correct option is D.

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The values are;

⇒ F ∩ H = Ф

⇒ F ∪ H = (- ∞, 7]

What is Coordinates?

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

Given that;

F and H are defined as;

F = {v | v < 4 }

H = {v | v ≥ 7 }

Now,

Since, F and H are defined as;

F = {v | v < 4 }

H = {v | v ≥ 7 }

Hence, The values are;

F ∩ H = {v | v < 4 } ∩  {v | v ≥ 7 }

         = Ф

And, F ∪ H = {v | v < 4 } ∪  {v | v ≥ 7 }

                 = (- ∞, 7]

Thus, The values are;

⇒ F ∩ H = Ф

⇒ F ∪ H = (- ∞, 7]

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The length of line segment AB as required to be determined in the task content is; 53/45.

It follows from the task content that the length of the line segment AB is to be determined as required in the task content.

Since the point, S is a point on line segment AB such that;

AS = 7/9 and SB = 2/5

It follows that the required length of line segment AB is defined as the sum of the lengths of line segments AS and SB.

Therefore; AB = 7/9 + 2/5

AB = (35 + 18) / 45 = 53/45

Ultimately, the required length of line segment AB is; 53/45.

PS;

Also, Two angles are said to be supplementary if the sum of their measures is equal to 180°.

Therefore, since <B is supplementary to <A; the measure of <B is; 180° - <A.

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Two different data sets that have a median of 13 are

From the question, we have the following parameter

Median =13

The median of a dataset is the number at the middle position

So, we can make use of the following dataset

9, 10, 13, 18, 20

This is so because the middle number is 13

Another possible dataset is

10, 13, 13, 18

Similarly, this is because the middle number is 13

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The equation of the line that is perpendicular to y = 1/2x - 6 and that passes through the point (-4, -5) is y = -2x + 3

From the question, we are to determine the equation of the line that is perpendicular to the given line and that passes through the given point.

The given equation is y = 1/2x - 6

The given point is (-1, 5)

NOTE: If two lines are perpendicular, then their slopes are negative reciprocals of each other

First, we will determine the slope of the given line

y = 1/2x - 6

Compare to the general form of an equation of a straight line

y = mx + b

Where m is the slope

and b is the y-intercept

Therefore,

The slope of the line is 1/2

But,

The negative reciprocal of 1/2 is -2

Thus, the slope of the equation we are to determine is -2

Now, we will determine the equation of the line that has a slope of -2 and that passes through the point (-1, 5)

Using the point-slope form of the equation of a straight line

y - y₁ = m(x - x₁)

Then,

y - 5= -2(x - (-1))

y - 5 = -2(x + 1)

y - 5 = -2x -2

Add 5 to both sides of the equation

y - 5 + 5 = -2x - 2 + 5

y = -2x + 3

Hence, the equation of the line is y = -2x + 3

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The percentage of the depreciation is 8.3%

In this question, the figures are given as

Original amount = $600

New amount = $550

These figures can be represented as

Initial value = 600

Final value = 550

The percentage of the depreciation is then calculated using the following equation

Change percentage = (Final amount - Initial amount)/Initial amount * 100%

Substitute the known values in the above equation, so, we have the following representation

Change percentage = (550 - 600)/600 * 100%

Evaluate

Change percentage = -8.3%

Hence, the depreciation percentage is 8.3%

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