Matthew has a gift card for $50 to lulu beans he is charged $3.25 for each coffee that he buys write an equation to represent his total amount left a after c coffees are purchased how many coffees were purchased if he has $11 left on the card

Answer: (-2,-2)

Step-by-step explanation:

Start at finding the y-intercept(-3) then do rise over run with -2x

Rise over run is count up/down then left/right

Answer:

e. 7.2 > 7

f. -7.2 < -7

Step-by-step explanation:

Refer to number line

Each person living in the Sighet ghetto would have had an estimated personal space of 12.8 square feet, which is extremely cramped and overcrowded.

A two-dimensional figure, form, or planar lamina's area is a measurement of how much space it takes up in the plane.

First, we need to calculate the total number of rooms in the ghetto:

Number of people = 13,000

Number of people per room = 20

Total number of rooms = Number of people / Number of people per room = 13,000 / 20 = 650

Next, we can calculate the total area of all the rooms:

Total area of all the rooms = Number of rooms x Average room size = 650 x 256 = 166,400 square feet

Finally, we can calculate the amount of personal space each person had by dividing the total area of all the rooms by the number of people:

Personal space per person = Total area of all the rooms / Number of people = 166,400 / 13,000 = 12.8 square feet

Therefore, each person living in the Sighet ghetto would have had an estimated personal space of 12.8 square feet, which is extremely cramped and overcrowded.

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Answer: 4

Step-by-step explanation:

Slope: \(\frac{y_{2} -y_{1} }{x_{2}- x_{1} }\)

y₂ = -7

y₁ = 5

x₂ = 0

x₁ = 3

\(\frac{-7 -5 }{0- 3 }=\frac{-12}{-3} = \frac{4}{1} = 4\)

Slope: 4

y₁ =  [1  -4  0  1] and y₂ = [5  1  -6  -1] is the orthogonal basis for w using Gram-Schmidt process.

Given,

The set;

x₁ = [1  -4  0  1]

x₂ = [7  -7  -6  1]

We have to produce the orthogonal basis for w using the Gram-Schmidt process;

Here,

y₁ = x₁ =  [1  -4  0  1]

Now,

Solve for y₂

y₂ = x₂ - [x₂y₁ / y₁y₁] y₁

That is,

y₂ = [7  -7  -6  1] - ( [7  -7  -6  1] [1  -4  0  1] / [1  -4  0  1] [1  -4  0  1] ) × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - (7 + 28 - 0 + 1) / (1 + 16 + 0 + 1) × [1  -4  0  1]

y₂ = [7  -7  -6  1]  - 36/18 × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - 2  × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - [2  8  0  2]

y₂ = [5  1  -6  -1]

That is,

The orthogonal basis for w using Gram-Schmidt process is,

y₁ =  [1  -4  0  1] and y₂ = [5  1  -6  -1]

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Answer:

h is 19.5

Step-by-step explanation:

8.5 is 11 less than h

8.5 = h - 11

Add 11 to both sides

19.5 = h

Answer: line c

Step-by-step explanation: we know that

If two figures are similar, then the ratio of its corresponding sides is equal and is called the scale factor

Let

z-----> the scale factor

m----> the distance from P to the dilated line

we have

The dilated line at  units of P is the line c

Answer:

Line c don’t rate

Step-by-step explanation:

(a) To construct the maximum likelihood estimator of λ, we need to find the value of λ that maximizes the likelihood function based on the given sample.

The likelihood function is the product of the individual probabilities for each observation in the sample. Since the random variable X₁ follows a shifted exponential distribution with pdf f(x; λ, 0) = λe^(-λx), the likelihood function is:

L(λ) = λe^(-λx₁) * λe^(-λx₂) * ... * λe^(-λxₙ)

To simplify the calculation, we can take the logarithm of the likelihood function and maximize the log-likelihood instead. Taking the logarithm helps in transforming the product into a sum and simplifies the calculations. The log-likelihood function is:

ln(L(λ)) = ln(λ) - λx₁ + ln(λ) - λx₂ + ... + ln(λ) - λxₙ

= nln(λ) - λ(x₁ + x₂ + ... + xₙ)

To find the maximum likelihood estimator (MLE) of λ, we differentiate the log-likelihood function with respect to λ and set it equal to zero:

d/dλ [ln(L(λ))] = (n/λ) - (x₁ + x₂ + ... + xₙ) = 0

Solving for λ, we get:

n/λ = (x₁ + x₂ + ... + xₙ)

λ = n / (x₁ + x₂ + ... + xₙ)

Therefore, the maximum likelihood estimator of λ, denoted as cap on λ, is cap on λ = n / (x₁ + x₂ + ... + xₙ).

(b) Given the independent samples: 3.11, 0.64, 2.55, 2.20, 5.44, 3.42, 10.39, 8.93, 17.82, and 1.30, we can calculate the estimate of λ using the maximum likelihood estimator formula:

cap on λ= 10 / (3.11 + 0.64 + 2.55 + 2.20 + 5.44 + 3.42 + 10.39 + 8.93 + 17.82 + 1.30)

= 10 / 55.80

≈ 0.1791

Therefore, the estimate of λ, denoted as cap on λ, is approximately 0.1791.

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The probability of not selecting a green marble is equal to the total number of non-green marbles in the bag divided by the total number of marbles in the bag.

To calculate the probability: there are three green marbles out of a total of twenty-five marbles, so the probability of selecting a green marble is 3/25.

The likelihood of not selecting a green marble is then 1 - 3/25 = 22/25.

This is equal to 22/25 * 100 = 88% as a percentage.

As a result, P(not green) = 88%

Probability denotes the possibility of something happening. It is a mathematical branch that deals with the onset of a random event. The value ranges from zero to one. Probability has been tried to introduce in mathematics to predict the probability of events occurring. Probability is defined as the degree to which something is likely to occur. This is the fundamental probability theory, which is also used in probability distribution, in which you will learn about the possible outcomes of a random experiment.

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Answer:

47/10 - 3.2

Step-by-step explanation:

Given

Dolphin = 3.2

Bird = 47/10

Required

What is the vertical distance between both

Using a vertical scale;

Represent the bird "above sea level" position with positive and dolphin at "below sea level" position with negative.

The vertical distance between them is as follows;

Distance = +[Above The Sea] - [Below The Sea]

Distance = +47/10 - 3.2

Distance = 47/10 - 3.2

Hence, the vertical distance between both is 47/10 - 3.2

Answer: 97 degrees

Step-by-step explanation:

Answer:

B. \(b \leq 1\frac{7}{10}\)

Step-by-step explanation:

Isolate b in order to solve the inequality. Subtract \(\frac{9}{5}\) on both sides of the inequality, then simplify. (You will need to convert the fractions in order to subtract and simplify further.)

\(\frac{7}{2} \geq b + \frac{9}{5} \\\frac{7}{2} -\frac{9}{5} \geq b + \frac{9}{5} -\frac{9}{5} \\\frac{35}{10} -\frac{18}{10}\geq b\\\frac{17}{10} \geq b\\1\frac{7}{10} \geq b\)

Thus, \(b \leq 1\frac{7}{10}\).

Answer:

b

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

diagnols of a parallelogram bisect each other :)

https://mathschmidt.weebly.com/uploads/6/1/4/6/6146296/parallelograms_extra_practice_blank_and_key.pdf

Answer:

7

Step-by-step explanation:

To make 150 cupcakes, you use 1360.78 grams of dry ingredients. 22% of the dry mixture is sugar. How many ounces of sugar is in one cupcake? round your answer to the nearest hundredth. ​

you can solve this by using a rule of three.

Step 1

if 1360.78 gr is our 100%, and 22% is sugar, how many sugar is in it?

solve for x

so, 22% of the dry mixture is 299.37 gr of sugar.

Step 2

to make 150 cupcakes you use 299.37 gr of sugar , how many sugar for (1) cupcake?

again, we can use a rule of three

solve for y

so, for every cupcake you use 2 grams of sugar.

Step 3

convert grams into ounces

remember

1 gram =0.035274 ounces

use a rule of three

solve for w

so, in one cupcake there are 0.07 ounces of sugar

The present value of $8,848 annual payments over the next 5 years at an interest rate of 10% is approximately $33540.88.

The present value of an annuity is a measure of its worth today, taking into account the time value of money and the rate of interest. To calculate the present value, each future payment is discounted back to the present day.

In this case, with an interest rate of 10%, each $8,848 payment is worth less in today's dollars the further out it is made. The present value of these payments over the next 5 years would be the sum of the present value of each payment, which is approximately $33540.88.

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Answer:

5/8 + 2/4

Step-by-step explanation:

5/8 +2/4

Multiply 2/4 times 2 which equals 4/8

Then 5/8+4/8 equals 9/8

Answer:

-0.3

Step-by-step explanation:

X---Y---Z. XY+Y ---} 7x+4x+3 ---} 10x+3=0 ---} 10x=-3 ---} x=-0.3

The friend is correct. Split the 2D figure as indicated in the diagram below. The rectangle on the left rotates to form the cylinder. The triangle rotates to form the cone. Think of these as like a revolving door that carves out a 3D shape. Or you could think of propellers.

Answer:

ALTERNATE EXTERIOR ANGLES

Step-by-step explanation:

If the two angles that lie on two different lines cut by a transversal and are placed on the opposite sides of the transversal are equal, it means they are ALTERNATE EXTERIOR ANGLES. Then, j is parallel to k.

The required, there is convincing evidence that the proportion of all high school students who work a part-time job during the school year is greater than 0.28.

The conditions for inference for conducting a z-test for one proportion are:

Random: The sample is selected using a random method, so this condition is met.

Therefore, all the conditions for inference are met, and we can conduct a z-test for one proportion to test whether the proportion of all high school students who work a part-time job during the school year is greater than 0.28.

The null hypothesis is that the true proportion is 0.28, and the alternative hypothesis is that the true proportion is greater than 0.28. We can calculate the test statistic using the formula:

z = (p - P) / √[P(1-P) / n]

where p is the sample proportion (0.375), P is the hypothesized proportion (0.28), and n is the sample size (80).

Plugging in the values, we get:

z = (0.375 - 0.28) / √[0.28 × (1 - 0.28) / 80] = 2.22

Using a standard normal distribution table or calculator, we find that the p-value for a z-score of 2.22 is approximately 0.014. Since this is less than the significance level of 0.05, we reject the null hypothesis and conclude that there is convincing evidence that the proportion of all high school students who work a part-time job during the school year is greater than 0.28.

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Answer:

B. Inches

Step-by-step explanation:

Because it measures the length of something, Not the weight.

Answer:

C

Step-by-step explanation:

weight in the USA is usually measured in LBS (pounds)

(a) The smallest positive value of n for which a simple graph on n vertices and 2n edges can exist is 3. An example of such a graph for the smallest n is a triangle, where each vertex is connected to the other two vertices.

In this case, we have 3 vertices and 2n = 2 * 3 = 6 edges, which satisfies the condition.

To determine the smallest positive value of n, we need to consider the conditions for a simple graph:

1. Each vertex must be connected to at least one other vertex.

2. There should be no multiple edges between the same pair of vertices.

3. There should be no self-loops (edges connecting a vertex to itself).

Considering these conditions, we start by trying with the smallest possible n, which is 3. We construct a graph with 3 vertices and connect each vertex to the other two vertices, resulting in a triangle. This graph satisfies the conditions and has 2n = 2 * 3 = 6 edges.

(b) To prove that G is connected, we will use a proof by contradiction.

Assume that G is not connected, meaning it has two or more components. Let's consider two distinct components, C1 and C2.

Since G has at most two components, each component can have at most 10 vertices (20 vertices / 2 components). Let's assume C1 has x vertices and C2 has y vertices, where x + y ≤ 20.

Now, let's consider two vertices u and v, where u belongs to C1 and v belongs to C2. According to the given condition, deg(u) + deg(v) > 19.

Since deg(u) represents the degree of vertex u, it means the number of edges incident to vertex u. Similarly, deg(v) represents the degree of vertex v.

In C1, the maximum possible degree for a vertex is x - 1 (since there are x vertices, each connected to at most x - 1 other vertices in C1). Similarly, in C2, the maximum possible degree for a vertex is y - 1.

Therefore, deg(u) + deg(v) ≤ (x - 1) + (y - 1) = x + y - 2.

But according to the given condition, deg(u) + deg(v) > 19. This contradicts the assumption that G has at most two components.

Hence, our assumption that G is not connected is false. Therefore, G must be connected.

In conclusion, if a simple graph G has 20 vertices, at most two components, and every pair of distinct vertices satisfies the inequality deg(u) + deg(v) > 19, then G is connected.

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1The probability that the sample proportion will be between 0.21 and 0.41 is 0.6452.

2 The probability that the sample proportion will be between 0.26 and 0.36 is 0.4359.

1. The standard error of the sampling distribution is calculated using the following formula:

SE = ✓(p(1-p)/n)

SE = ✓(0.31(1-0.31)/101)

= 0.023

The probability that the sample proportion will be between 0.21 and 0.41 can be found using the normal distribution. The z-scores for 0.21 and 0.41 are -2.17 and 1.96, respectively. The area under the normal curve between -2.17 and 1.96 is 0.6452.

2. The probability that the sample proportion will be between 0.26 and 0.36 can be found using the normal distribution. The z-scores for 0.26 and 0.36 are -1.19 and 0.43, respectively. The area under the normal curve between -1.19 and 0.43 is 0.4359.

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Step-by-step explanation:

prove the triangle proportionality theorem.

answer:-

If a line parallel to one side of a triangle intersects the other two sides of the triangle, then that line divides these two sides proportionally.

From the statement: If ��∣∣��FG∣∣BC then,

Show that: ����=����FAFB=AGGC

Consider △���△ABC and △���△GFA

Reflexive property states that the value is equal to itself.

∠���≅∠���∠BAC≅∠GAF [Angle] {Reflexive property of equality}

Corresponding angles theorem states that if the two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent(i., e equal).

∠���≅∠���∠ABC≅∠GFA [Angle]

∠���≅∠���∠ACB≅∠AGF [Angle]

AA Similarity states that the two triangles have their corresponding angles equal if and only if their corresponding sides are proportional.

then, by AA similarity theorem:  

△���∼△���△ABC∼△GFA

By segment addition postulates:

AB = FA +FB and AC = AG + GC  

Corresponding sides in similar triangles are proportional  

����=����FAAB=AGAC .....[1]

Substitute AB = FA +FB and AC = AG + GC in [1]  

we have;

��+����=��+����FAFA+FB=AGAG+GC  

Separate the fraction:

����+����=����+����FAFA+FAFB=AGAG+AGGC

Simplify:

1+����=1+����1+FAFB=1+AGGC

Subtract 1 from both sides we get;

����=����FAFB=AGGC hence proved

Answer:

.17 cents

Step-by-step explanation:

Answer:

400

Step-by-step explanation:

to find volume of a rectangular prism is whl which in ur case equals 400

Answer:

I would say twv

Step-by-step explanation:

Yes, the sample size would be large enough if the population is school-aged children and young adults in the United States as this is a simple random sampling.

Simple random sampling is used for randomly selecting the sample size for research. No member in the population has a higher chance in comparison to others for selection in sampling. Every individual has an equal chance to be a part of the sample for the study. This is a type of probability sampling method.

The probability sampling method states that every individual has a fair and equal chance to be selected as a research sample. It includes simple random sampling, stratified sampling, systematic sampling, and cluster sampling. Here the researchers have picked around 150 students and young adults which is an appropriate amount of simple random sample for the study.

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Answer:

Below,...!

Step-by-step explanation:

\(8^2 = 64\\64*(2+6) = 64*8\\64*8 = 512\\512/4 = 128\\\\Answer=128\)

Chow,...!

Answer:

Step-by-step explanation:

To convert square meters to square centimeters, we need to multiply by the conversion factor (100 cm / 1 m)^2.

So,

3.9 m² = 3.9 × (100 cm / 1 m)²

3.9 m² = 3.9 × 10,000 cm²

3.9 m² = 39,000 cm²

Therefore, 3.9 square meters is equal to 39,000 square centimeters.