2. A family eats at a restaurant. The bill is $58.
The family leaves a tip and spends$68.15 total.
a How much money does the family tip?

The mean, mode, median and range are explained in the solution.

Median =

To find the median of a set of data, arrange the values in order from smallest to largest and find the middle value.

If there are an even number of values, take the mean of the two middle values. In this example, the values in ascending order are:

20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 29, 29, 29, 30, 30, 31, 31, 32, 32, 33, 34

There are 30 values, so the median is the 15th value, which is 28.

Range =

To find the range of a set of data, subtract the smallest value from the largest value. In this example, the smallest value is 20 and the largest value is 34, so the range is:

Range = 34 - 20 = 14

Mode = 27 and 29

Mean = 20 + 21 + 22 + 23 + 23 + 24 + 24 + 25 + 25 + 26 + 26 + 27 + 27 + 27 + 28 + 28 + 29 + 29 + 29 + 30 + 30 + 31 + 31 + 32 + 32 + 33 + 34

= 736 / 30 = 24.5

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Answer:

2x-25<89

x<57

Step-by-step explanation:

2x-25<89

2x<89+25

2x<114

Divide by 2...

x<57

Hope this helped! Please mark brainliest :)

The probability of a type i error for a sample of size 10 depends on the significance level (α) chosen for the hypothesis test. Assuming a standard significance level of 0.05, the probability of a type i error for a sample of size 10 can be calculated using a t-distribution table or a statistical software.

A type i error occurs when a null hypothesis is rejected when it is actually true. In hypothesis testing, the significance level (α) is the probability of rejecting the null hypothesis when it is actually true. A common significance level used in statistical analysis is 0.05, which means that there is a 5% chance of rejecting the null hypothesis when it is actually true.

The probability of a type i error for a sample of size 10 can be calculated using a t-distribution table or a statistical software. The calculation involves finding the critical value of t at the chosen significance level and degrees of freedom (df), which is equal to the sample size minus 1 (n-1). For a sample size of 10 and a significance level of 0.05, the critical value of t is approximately 2.306 (from a t-distribution table with 9 degrees of freedom).

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Answer:

1. = -560

2. = I181

3. = 752

4. = I311

5. = 572

6. = I831

7. = -3450

8. = 5980

9. = -I1121

10. = -I1431

Answer:

25 marbles per bag

Step-by-step explanation:

75 / 3 = 25

Therefore there are 25 marbles in each bag.

Tip: don't pay attention to the words in math questions because they try and trip you up... just pay attention to the numbers. :]

<3 Enjoy,

    Dea

To find the limit of the given expression as x approaches 0, we will use l'Hospital's Rule because the expression is in the indeterminate form 0/0. The given expression is: lim (x→0) [(√(1 + 9x) - √(1 - 2x))/x]

First, let's find the derivative of the numerator and denominator with respect to x. Numerator's derivative: d/dx [√(1 + 9x) - √(1 - 2x)] = (9/2) * (1/√(1 + 9x)) - (2/2) * (1/√(1 - 2x)) Denominator's derivative: d/dx [x] = 1

Now, apply l'Hospital's Rule and find the limit of the derivative: lim (x→0) [(9/2) * (1/√(1 + 9x)) - (2/2) * (1/√(1 - 2x))]

As x approaches 0: = (9/2) * (1/√(1 + 9*0)) - (2/2) * (1/√(1 - 2*0)) = (9/2) * (1/√1) - (2/2) * (1/√1) = (9/2) - (2/2) = (9 - 2)/2 = 7/2

So the limit of the given expression as x approaches 0 is 7/2.

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The type of triangle that is given by the dimensions, is a Scalene triangle.

A scalene triangle has sides that are all measured differently. In such a triangle, no side will be the same length as any other side. Every interior angle in a scalene triangle is also unique.

The lengths of two of the three sides in an isosceles triangle are equal. The angles that are opposite the equal sides are therefore equal. An isosceles triangle, in other words, has two equal sides and two equal angles.

Each side of an equilateral triangle has an equal length. Each internal angle in this scenario will be 60 degrees in length. An equilateral triangle is often referred to as an equiangular triangle since its angles are equal.

The dimensions here are not the same which means that all the sides are not equal and so this is a scalene triangle.

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Answer:

m = -5 + 2b

Step-by-step explanation:

2b - m = 5

-2b    -2b

-m = 5 - 2b

-1         -1

5 ÷ -1 = 5

-2b ÷ -1 = 2b

m = -5 + 2b

Answer:

0.6+ 1.5=2.1

Step-by-step explanation:

Answer: 72 Calories

Step-by-step explanation:

First, calculate the calories per ounce.

216/18= 12

Then, multiply by 6 to get how many calories Sam consumed.

12 * 6= 72

Sam consumed 72 calories.

You can also see that 6 ounces is 1/3 of the bottle, so the answer can also be derived by multiplying 218 by 1/3.

Answer:

\( x^{\frac{2}{3}} \)

Step-by-step explanation:

Given:

\( \frac{\sqrt[4]{x^3}}{x^{\frac{1}{12}}} \)

Required:

Equivalent expression of the above expression if x ≠ 0

Solution:

\( \frac{\sqrt[4]{x^3}}{x^{\frac{1}{12}}} \)

Applying lower rule of exponents, rewrite the numerator

\( \frac{x^{\frac{3}{4}}}{x^{\frac{1}{12}}} \)

Next, apply the Quotient rule of exponents

\( x^{\frac{3}{4} - \frac{1}{12}} \)

\( x^{\frac{9 - 1}{12}} \)

\( x^{\frac{8}{12}} \)

\( x^{\frac{2}{3}} \)

We want to find an expression that is equivalent to the given one, we will see that the equivalent expression is:

\(x^{2/3}\)

Two properties will be used here, these are:

\(\sqrt[n]{a} ^m = a^{m/n}\)

and

\(\frac{a^n}{a^m} = a^{n - m}\)

Now, we start with the expression:

\(\frac{\sqrt[4]{x^3} }{x^{1/12}}\)

With the first property, we can rewrite the numerator as:

\(\frac{\sqrt[4]{x^3} }{x^{1/12}} = \frac{x^{3/4} }{x^{1/12}}\)

Now we use the second property to get:

\(\frac{x^{3/4} }{x^{1/12}} = x^{3/4 - 1/12} = x^{2/3}\)

Then the correct option is the third one, counting from the top.

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The equation for the hyperbola with foci (0,±5) and asymptotes y=± 3/4 x is:

y^2 / 25 - x^2 / a^2 = 1

where a is the distance from the center to a vertex and is related to the slope of the asymptotes by a = 5 / (3/4) = 20/3.

Thus, the equation for the hyperbola is:

y^2 / 25 - x^2 / (400/9) = 1

or

9y^2 - 400x^2 = 900

The center of the hyperbola is at the origin, since the foci have y-coordinates of ±5 and the asymptotes have y-intercepts of 0.

To graph the hyperbola, we can plot the foci at (0,±5) and draw the asymptotes y=± 3/4 x. Then, we can sketch the branches of the hyperbola by drawing a rectangle with sides of length 2a and centered at the origin. The vertices of the hyperbola will lie on the corners of this rectangle. Finally, we can sketch the hyperbola by drawing the two branches that pass through the vertices and are tangent to the asymptotes.

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The probability of winning $3,899 is 0.0001, which is a very small probability, but still possible.

To write the probability distribution for a player's winnings in the Pick 4 game, we need to consider all the possible outcomes and their probabilities.

There are a total of 10,000 possible four-digit numbers that can be drawn in the game. Since the player has to match the numbers in the exact order, there is only one winning combination for each four-digit number. Therefore, the probability of winning is 1/10,000.

To calculate the player's winnings, we need to subtract the $1 cost of playing from the $3,900 prize. Thus, the player's net winnings can be calculated as follows:

Net Winnings = $3,900 - $1 = $3,899

The probability distribution for the player's winnings can be summarized in the following table:

| Winnings (x) | Probability (P) |
|--------------|-----------------|
| $0           | 0.9999          |
| $3,899       | 0.0001          |

Note that the table shows the possible winnings (x) in ascending order, as requested. The probability of winning $0 is 0.9999, which means that the player is most likely to lose their $1 bet.

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Yes, The given table is an example of a linear function.

Since, The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

We have to given that;

To check the following data an example of a linear function.

Now, We can check the slope of given tables as;

⇒ Slope = (3 - (- 2)) / (0 - (- 7))

             = (5 / 7)

⇒ Slope = (8 - 3) / (7 - 0)

             = (5 / 7)

Thus, This table represent the an example of a linear function.

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Answer:

I need the answer tooo

Question: Find the focus of the parabola: f(x) = 1/4(x – 3)^2 + 1

Answer: Focus: (3, 2)

Step-by-step explanation:

Use the vertex form to find the focus. Hope this helps!

The cost of a new home, built of standard materials, with standard techniques and design replacement cost and reproduction cost may be the same.

When analyzing the cost of a new home built with standard materials, techniques, and design, the relationship between replacement cost and reproduction cost may vary. Option 4) Replacement cost and reproduction cost may be the same, is the most accurate statement.

Replacement cost refers to the amount required to replace or rebuild a property, while reproduction cost refers to the cost of constructing an exact replica of the original property. These costs can be the same in some cases, but factors such as market conditions, construction costs, and availability of materials can affect the costs differently. Cost and value are not always the same, as value considers factors such as location, demand, and economic conditions.

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Answer:

\(\frac{1}{14}\),\(-\frac{3135}{28}\)

Step-by-step explanation:

Solution

1) The volume of a cone.

The volume of a cylinder = 36

What is the relationship between the volume of the cone and the volume of the cylinder? (Answer: The cone takes up one-third of the volume of the cylinder.)

2) Volume of a sphere

The relation between the volume of sphere and the volume of cylinder is that the volume of the sphere is two-third of the volume of the cylinder with a height equal to the diameter of the sphere and the same radius.

Final answer

In shape (i), there are two electron domains around the central atom. This means that the electron-domain geometry is linear. However, there are two bonding pairs and no lone pairs of electrons around the central atom, resulting in the molecular geometry also being linear.

The concept of electron-domain geometry and molecular geometry is essential in understanding the properties of molecules. The electron-domain geometry is determined by the number of electron domains (bonding or lone pairs) around the central atom in a molecule. On the other hand, the molecular geometry is determined by the arrangement of atoms in the molecule, taking into account the presence of lone pairs.

Knowing the electron-domain geometry and molecular geometry of a molecule is crucial in predicting its polarity and reactivity. For instance, polar molecules have an asymmetric distribution of electron density, while nonpolar molecules have a symmetric distribution. This difference in polarity affects the physical and chemical properties of a molecule, such as boiling point, melting point, and solubility.

In summary, in shape (i), both the electron-domain geometry and molecular geometry are linear, which means that the central atom has two bonding pairs and no lone pairs. Understanding the electron-domain and molecular geometry of molecules is essential in predicting their properties and behavior.

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29 Nickels

15 Dimes

Hope this is helpful!

The probability that a product will function properly for a specified time under stated conditions is determined by its reliability, durability, and functionality.

These factors are influenced by the quality of materials used in manufacturing, the maintenance schedule of the product, and its fitness for use. The higher the reliability, durability, and functionality of a product, the higher the probability that it will function properly for the specified time under the stated conditions. Therefore, it is important to consider these factors when assessing the performance of a product and determining its fitness for use. The probability that a product will function properly for a specified time under stated conditions is referred to as its reliability. Reliability is an essential aspect of a product's overall quality, as it indicates the product's durability and fitness for use. In order to maintain a high level of reliability, proper functionality and maintenance must be ensured throughout the product's lifetime.

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Answer:

The percent decrease is 35%.

Step-by-step explanation:

percent change = (new value - old value)/(old value) × 100%

new value = $52

old value = $80

percent change = ($52 - $80)/($80) × 100%

percent change = -$28/$80 × 100%

percent change = -35%

A negative percent change means a percent decrease.

Answer: 35%

An irrational number is created by adding two rational numbers, according to the answer to the given question. If the oppositely irrational numbers a and b.

Rational numbers are those that may be written as a ratio (or fraction) of two integers. A fraction with a non-zero denominator is said to be rational.

A few instances of rational numbers are 1/2, 1/5, and 3/4. A rational number, “0,” can also be stated in a number of different ways, such as 0/1, 0/2, and 0/3. But 1/0, 2/0, 3/0, and so forth.

The number seven makes sense. A rational number is produced when two integers are split. To get the rational number 7, divide the whole number 7 by the whole number 1. Since 7 can be obtained by dividing two integers, it is referred to as a rational number.

Two rational integers added together yield an irrational number. Ab is irrational if and only if a and b are mutually exclusive irrational numbers.

Therefore, a = 2 and b = ab = 2 is an irrational number.

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Answer:

6.3×10^6

Step-by-step explanation:

6.3×10^6

in standard form

The error term is a random variable with an expected value of zero.2. The error term is normally distributed

The assumptions underlying the simple linear regression model `y = Bo + B1x + e` are: 1.

The variance of the error term e is constant across all values of x.Thus, the assumptions that are underlying the simple linear regression model `y = Bo + B1x + e` are the second and the third options, which are "The error term is normally distributed." and "The variance of the error term e is constant across all values of x." respectively.

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Applying law of sine and law of cosine, the unknown values x and y are 16.2 units and 37.1 degrees respectively.

To determine the value of x and y in the given triangle, we can use law of sine or law of cosine depending on the variables available and what we need to determine.

Applying law of cosine;

x² = 15² + 10² - 2(15)(10)cos78

x² = 225 + 100 - 300cos78

x² = 225 + 100 - 62.4

x² = 262.6

x = √262.6

x = 16.2 units

From this, we can apply law of sine to determine y;

x / sin X = y / sin Y

Substituting the values into the formula above;

16.2 / sin78 = 10 / sin y

Cross multiply both sides and solve for y;

16.2siny = 10sin78

sin y = 10sin78 / 16.2

sin y = 0.6038

y = sin⁻¹ (0.6038)

y = 37.14°

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Answer:

160 ounces

Step-by-step explanation:

He buys four 24 ounces bottle and one 64 ounce bottle.

The four 24 ounces bottles amount to:

24 * 4 = 96 ounces

Therefore, the total amount of lemonade that Mr Johnson buys is:

96 + 64 = 160 ounces