Giovanna used the calculations below to determine the height of a stack of 7 books that are each 2 and StartFraction 5 over 8 EndFraction inches thick. What was her error?
7 (2 and StartFraction 5 over 8 EndFraction). 7 (2 + StartFraction 5 over 8 EndFraction). 14 + StartFraction 5 over 8 EndFraction. 14 and StartFraction 5 over 8 EndFraction

The probability that a simple random sample of 45 unemployed individuals will provide is 0.7372

Here, μ = 17.5, σ = 0.8944, x1 = 16.5 and x2 = 18.5.

We need to compute P(16.5<= X <= 18.5).

The corresponding z-value is calculated using Central Limit Theorem.

z = (x - μ)/σ

z1 ⇒ (16.5 - 17.5)/0.8944 = -1.12

z2 ⇒ (18.5 - 17.5)/0.8944 = 1.12

Therefore, we get

P(16.5 <= X <= 18.5) = P((18.5 - 17.5)/0.8944) <= z <= (18.5 - 17.5)/0.8944)

⇒ P(-1.12 <= z <= 1.12) = P(z <= 1.12) - P(z <= -1.12)

⇒ 0.8686 - 0.1314 = 0.7372

The principal limit theorem states that if you have a population with imply μ and trendy deviation σ and take sufficiently huge random samples from the populace with alternative, then the distribution of the pattern method may be about usually distributed.

The relevant limit theorem (CLT) states that the distribution of pattern manner approximates a normal distribution as the pattern size gets larger, regardless of the population's distribution. sample sizes identical to or extra than 30 are often considered enough for the CLT to preserve.

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Answer:

Diameters  

Step-by-step explanation:

In spherical geometry, lines are called diameters.

Answer:

Diameter

Step-by-step explanation:

In spherical geometry, lines are called diameter .

Also this makes sense the most .

The expected value on playing this game is -5/36.

Given: 2 gold marbles, 9 silver marbles, and 24 black marbles.If it is gold, you win $3. If it is silver, you win $2. If it is black, you lose $1.

To find: Expected value on playing the game

Chance of occurrence of  gold = 1/36

Chance of occurrence of silver = 9/36

Chance of occurrence of  black = 26/36

On multiplying the given probability of occurence with the amount you would lose or win

we get,

1/36 * 3 + 9/36 * 2 - 26/36 * 1

3/36 + 18/36 - 26/36

=$ -5/36

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The number of possible outcomes are 180.

To find the total number of possible outcomes for two or more events, multiply the number of outcomes for each event together.

Given that,

We have two types of rings Gold and platinum

For this event (material) we have 2 outcomes.

Each ring is available in 10 style

For this event (style) we have 10 outcomes.

Each ring is fitted with 9 gemstones

For this event (gem) we have 9 outcomes.

Total number of possible outcomes  = 2×10×9

                                                            = 180

Hence, The number of possible outcomes are 180.

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Answer:

Area = ab

Step-by-step explanation:

Area is length × width, so fill in a for the length and b for the width. Multiply a and b together.

A = a×b

A = ab

Answer:

x

Step-by-step explanation:

2^3

Based on the calculations, the total volume which the pair have altogether is equal to 19.8 Liters.

In Science, volume is a unit of measurement which indicates the capacity of a container and it has the following units:

Next, we would convert the volume of Madison's diesel in centiliter to liter as follows:

1 centiliter = 0.01 liter

940 centiliter = X liter

Cross-multiplying, we have:

X = 940 × 0.01

X = 9.4 L.

Total volume = 9.4 + 10.4

Total volume = 19.8 Liters.

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Take a look at the graph of [tex]f(x)=|x|[/tex], also known as the absolute value of [tex]x[/tex].

As shown by the graph attached, it is V-shaped, opens up, and is symmetric with respect to the vertical/y-axis.

Answer:

muji chus mero lado madeaghw you mother machinery

Answer:

After finding all the amount add them and your amount shared will be dollar 136

Answer:

[32, ∞]

Step-by-step explanation:

c - 32 ≥ 0 can be rewritten as c ≥ 32 (adding 32 on both sides)
So for any value of between 32 and infinity both inclusive is a solution

Answer:

none

Step-by-step explanation:

(8-5)=3

8-5÷23

=179/23

Answer:

0.1

Step-by-step explanation:

break 1 into 10 parts, and take one part: hence 0.1

Answer:

0.1

Step-by-step explanation:

Answer:

They get 15×9=135

135÷15=9 is your answer

The correct steps are given below:-

a) Subtract 2 and two-thirds from both sides of the equation

b) 8 minus 2 and two-thirds = 5 and one-third

c) Substitute the value for r to check the solution.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The given expression will be solved by using the following steps:-

[tex]2 \dfrac{2}{3}[/tex]  + r   = 8

Subtract [tex]2 \dfrac{2}{3}[/tex]  from each side

[tex]2 \dfrac{2}{3}[/tex]    + r  - [tex]2 \dfrac{2}{3}[/tex]     = 8 - [tex]2 \dfrac{2}{3}[/tex]  

r = 5 1/3

Check the solution,

[tex]2 \dfrac{2}{3}[/tex]   + [tex]5 \dfrac{1}{3}[/tex] =8

8 = 8

The complete question is given below:-

Which steps would be used to solve the equation? Check all that apply. 2 and two-thirds + r = 8 Subtract 2 and two-thirds from both sides of the equation. Add 2 and two-thirds to both sides of the equation. 8 minus 2 and two-thirds = 5 and one-third 8 + 2 and two-thirds = 10 and two-thirds Substitute the value for r to check the solution.

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Answer:

A,C,E >:3.

your welcome!

Hello and Good Morning/Afternoon

Let's take this problem step by step:

To find the rate of change is essentially like finding a line's slope:

 ⇒ the x-values are the number of sodas

 ⇒ the y-values are the total costs

              ⇒ choose two sets of coordinates and find the slope

Let's put that into action

        ⇒ (24, 18)

        ⇒ (28, 21)

        [tex]Rate_.of_.change = \frac{21-18}{28-24} =\frac{3}{4}[/tex]

Since the rate of change is total cost over number of sodas

 ⇒ unit is 'total cost/number of sodas'

Answer: 3/4 total cost/number of sodas

Hope that helps!

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The correct matching of the ordered pairs and the line they are on are:

The slope of the first pair is:

= (3 - (-3)) / (-5 - (-5))

= No slope as slope is 0

The slope of the second pair is:

= (-7 - (-1)) / (-1 - (-7))

= -1

The slope for the third pair is:

= (-2 - (-2)) / (6 - (-6))

= 0 or No slope

Rest of the question is:

slope = -1

No slope

No slope

slope = 2

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Answer: vertical line- (-5,-3) and (-5,3)

neither- (-7,1) and (-1,-7)

horizontal line- (-6,-2) and (6,-2)

hopefully this helps

Step-by-step explanation:

All ordered pairs for the values in the domain will be (-8, -3), (-4, -1), (0, 1), (2, 2), and (6, 4).

Coordinate geometry is the study of geometry using the points in space.

The function is given below.

y = (1/2) x + 1

Then the domain is D: (-8, -4, 0, 2, 6)

Then the ordered pair will be

For x = -8

y = (1/2)(-8) + 1

y = -3

For x = -4

y = (1/2)(-4) + 1

y = -1

For x = 0

y = (1/2)(0) + 1

y = 1

For x = 2

y = (1/2)(2) + 1

y = 2

For x = 6

y = (1/2)(6) + 1

y = 4

All ordered pairs for the values in the domain will be (-8, -3), (-4, -1), (0, 1), (2, 2), and (6, 4).

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The largest possible volume of the given box is; 96.28 ft³

Let b be the length and the width of the base (length and width are the same since the base is square).

Let h be the height of the box.

The surface area of the box is;

S = b² + 4bh

We are given S = 100 ft². Thus;

b² + 4bh = 100

h = (100 - b²)/4b

Volume of the box in terms of b will be;

V(b) = b²h = b² * (100 - b²)/4b

V(b) = 25b - b³/4

The volume is maximum when dV/db = 0. Thus;

dV/db = 25 - 3b²/4

25 - 3b²/4 = 0

√(100/3) = b

b = 5.77 ft

Thus;

h = (100 - (√(100/3)²)/4(5.77)

h = 2.8885 ft

Thus;

Largest volume = [√(100/3)]² * 2.8885

Largest Volume = 96.28 ft³

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Answer:

(5d⁴ − 8)²

Step-by-step explanation:

I hope this is helpful!

Home is 0.6 miles away from the store

How to solve such time related questions?

The key concept for solving such questions is the relationship between speed, distance and time.

The relationship between them is Distance = Speed x Time

Given:-

Total time taken by girl to complete the trip = 15 minutes = [tex]\frac{1}{4}[/tex] hours

Speed while riding going = 6 miles per hour

Speed while coming back = 4 miles per hour

Total time taken by girl  =

Time taken while going +   Time taken while coming back      - (1)

  Let x be distance from home to store

       [tex]\frac{x}{6}[/tex] =  Time taken while going

[tex]\frac{x}{4}[/tex] = Time taken while coming back

    Substituting in (1) we get

      [tex]\frac{1}{4} = \frac{x}{6} + \frac{x}{4}[/tex]

      [tex]\frac{1}{4} = \frac{2x + 3x}{12}[/tex]

       [tex]\frac{1}{4} = \frac{5x}{12}[/tex]

      [tex]x= \frac{12}{20}[/tex]

    x = 0.6 miles

Thus home is 0.6 miles away from the store

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Answer:

x = -6

Explanation:

⇒ 9(x + 3) = 4x - 3​

apply distributive method: a(b + c) = ab + ac

⇒ 9(x) + 9(3) = 4x - 3

multiply variables

⇒ 9x + 27 = 4x - 3

collect like terms

⇒ 9x - 4x = -3 - 27

subtract like terms

⇒ 5x = -30

divide both sides by 5

⇒ x = -6

Answer:

x = -6

Step-by-step explanation:

distribute 9(x+3) = 9x+27

9x+27 = 4x-3 subtract -27 and -4x on each side

9x-4x = -3-27 combine like terms

5x = -30 divide by 5

x = -6

Answer: 15, 15, 16, 21, 23, 29

Step-by-step explanation:

The percentage that the infuser will have to be filled to use the same amount of tea will be 90.23%.

The infuser for Lizeete is 7 cm high, 3 cm long and 1.5 cm wide. The volume will be:

= 7 × 3 × 1.5

= 31.5cm³

The tea infuser from the example, was the same except 7.9 cm high. Therefore, the volume will be:

= 7.9 × 3 × 1.5

= 35.5

Since it was filed to 80%, this will be:

= 80% × 35.5

= 31.5cm³

Therefore, the dimensions will work and the percentage to use the same amount of tea will be:

= 28.44/31.5 × 100

= 90.23%

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The probability that the sum of both rolls is at least 9 is 2/36.

Probability is the chance that a given event will occur.  the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes.

Given:

Total sample spaces: 36.

Number on one dice: 6

For sum of both rolls to be 9 , the only possible way is (6,3)(3,6)

Using probability formula,

Thus The probability that the sum of both rolls is at least 9 is 2/36.

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The question is incomplete. Below you will find the missing part of the question.

How many rabbits were there after x years? Write a function to represent this scenario.

[tex]8(2)^{x}[/tex] rabbits were there after x years.

The function form is [tex]f(x)=8(2)^{x}[/tex]

The number of rabbits released each year is 8.

During 0 year, there will be 8 rabbits;

During year 1, the number of rabbits will be 8+8 = 16, i.e. 8×2¹ = 16

Similarly, during the year 2, the number of rabbits will be  16+16 i.e. 8×2² = 32

So, according to the pattern we can say that the function would be  

[tex]f(x)=8(2)^{x}[/tex]

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The end behavior of the function is [tex]\mathrm{as}\:x\to \:+\infty \:,\:h\left(x\right)\to \:-\infty \:,\:\:\mathrm{and\:as}\:x\to \:-\infty \:,\:h\left(x\right)\to \:-\infty \:[/tex]

The function is given as:

[tex]h(x)= -7x^6+3x^4-5x^2[/tex]

Next, we plot the graph of the function (see attachment)

From the attached graph, we can see that:

The function approaches negative infinity, irrespective of the direction of the x value

Hence, the end behavior of the function is [tex]\mathrm{as}\:x\to \:+\infty \:,\:h\left(x\right)\to \:-\infty \:,\:\:\mathrm{and\:as}\:x\to \:-\infty \:,\:h\left(x\right)\to \:-\infty \:[/tex]

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The limit as x approaches three from the right of f(x)  is 3

The value a function approaches when the variable approaches its limit.

A graph is given which shows a piece  wise function ,

As when the limit approaches from the right the function can be seen approaching 3 , it is not 3 at 3 but approaching to 3

The right hand lim x--> 3 f(x)  approaches  3 .

Therefore , limit as x approaches three from the right of f(x)  is 3

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Segment AC was dilated by a scale factor of 2 to form A'C' measuring 16  units

Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, rotation, reflection and dilation.

Dilation is the increase or decrease in the size of a figure.

Let us assume that segment AC was dilated by a scale factor of 2 to form C'A', hence:

A'C' = 2 * AC = 2 * 8 = 16 units

Segment AC was dilated by a scale factor of 2 to form A'C' measuring 16  units

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The parabola opens down, the sign of the second difference is positive and the equation of the axis of symmetry is x = 1

It is defined as the graph of a quadratic function that has something bowl-shaped.

We have given a graph of a parabola.

From the graph:

The parabola opens down.

The sign of the second difference is positive.

The coordinates of the vertex is at (1, 3)

The equation of the axis of symmetry is x = 1

The optimal value of the parabola is at y = 3

The optimal value is considered a max value.

The x-intercepts is at (-1, 0) and (3, 0)

The y-intercept is at (0, 5/2)

Thus, the parabola opens down, the sign of the second difference is positive and the equation of the axis of symmetry is x = 1

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Answer: [tex]144\pi[/tex]

Step-by-step explanation:

The area of the base is [tex]36\pi[/tex].

If we consider the right triangle, by the Pythagorean theorem, the unknown leg, which has a length of 4, is the height.

So, the volume is [tex]144\pi[/tex].