22) Evaluate the expression with its given values.

5x−2y;x=2,y=−1

Answer:

Step-by-step explanation:

it does'nt matter because we don't know for sure

Answer:

The given statement is true. Reason: Area of a square = side × side Therefore, two squares that have the same area will have sides of the same lengths.

hop this helps

mark me brainliest

Step-by-step explanation:

Answer:

4th answer is correct

Step-by-step explanation:

First, let us make x the subject.

\(\sf \frac{x+4}{4} =\frac{y+7}{7}\)

Use cross multiplication.

\(\sf 7(x+4)=4(y+7)\)

Solve the brackets.

\(\sf 7x+28=4y+28\)

Subtract 28 from both sides.

\(\sf 7x=4y+28-28\\\\\sf7x=4y\)

Divide both sides by 7.

\(\sf x=\frac{4y}{7}\)

Now let us find the value of x/4.

To find that, replace x with (4y/7).

Let us find it now.

\(\sf \frac{x}{4} =\frac{\frac{4y}{7} }{4} \\\\\sf \frac{x}{4} =\frac{4y}{7}*\frac{1}{4} \\\\\sf \frac{x}{4} =\frac{4y}{28}\\\\\sf \frac{x}{4} =\frac{y}{7}\)

Answer:

Step-by-step explanation:

The solution of each part of the question is given below:

a. Let C be the event that a person smokes cigars, and let S be the event that a person smokes cigarettes. The percentage of Americans who smoke either cigars, cigarettes, or both can be calculated as P(C U S), where U represents the union of two events. From the given information, P(C) = 15% and P(S) = 35%. The probability that a person smokes both cigars and cigarettes is 7%, so P(C ∩ S) = 7%.

P(C U S) = P(C) + P(S) - P(C ∩ S)

P(C U S) = 15% + 35% - 7% = 43%

So, 43% of Americans smoke either cigars, cigarettes, or both.

b. The percentage of Americans who smoke neither cigars nor cigarettes can be calculated as P(C' ∩ S'), where C' represents the complement of event C (not smoking cigars) and S' represents the complement of event S (not smoking cigarettes).

P(C' ∩ S') = 100% - P(C U S)

P(C' ∩ S') = 100% - 43% = 57%

So, 57% of Americans smoke neither cigars nor cigarettes.

c. The percentage of Americans who smoke cigars but not cigarettes can be calculated as P(C ∩ S').

P(C ∩ S') = P(C) - P(C ∩ S)

P(C ∩ S') = 15% - 7% = 8%

So, 8% of Americans smoke cigars but not cigarettes.

d. The conditional probability that a person smokes cigarettes given that he smokes cigars can be calculated as P(S | C), where S represents the event that a person smokes cigarettes and C represents the event that a person smokes cigars.

P(S | C) = P(S ∩ C) / P(C)

P(S | C) = 7% / 15% = 0.47

So, the conditional probability that a randomly selected person smokes cigarettes given that he smokes cigars is 0.47, or 47%.

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Answer:

x = 0.8

Step-by-step explanation:

4x + 8 = 7.2 + 5x ( subtract 4x from both sides )

8 = 7.2 + x ( subtract 7.2 from both sides )

0.8 = x

Answer:

Answer is 3.398

Step-by-step explanation:

Solve by putting into calculator.

A node or event with a duration of 0 days is a b. milestone

A milestone refers to an important event in a project that has a duration of zero days. It signifies the completion of a significant phase or task within the project. Milestones are numbers placed on roads, such as roads, railroads, canals, or borders. They can show distances to cities, towns, and other places or regions; or they can set their work on track with respect to a reference point.

They are found on the road, often by the roadside or in a warehouse area. They are also called mile markers (sometimes abbreviated MM), milestones, or mileposts (sometimes abbreviated MP). "mile point" is the term used for the medical field where distance is usually measured in kilometers rather than miles. "Distance marking" is a general term that has nothing to do with units.

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Answer:

92% of Income is  Rs 18400

Step-by-step explanation:

I = 18400/.92 = Rs 20000

Answer:

Your answer is b+2=8. Good day.

Step-by-step explanation:

Answer:

I believe b+2=8

Step-by-step explanation:

m=10

b=6

x=10

i have attached an image of the bearing of 075°

If on Tuesday, Friday,  Saturday, and Sunday, she collected 43 cans each day. Tina got $14.15 for her cans last week.

Tina collected 37 cans on Monday, Wednesday, and Thursday, which is a total of 37 x 3 = 111 cans. She collected 43 cans on Tuesday, Friday, Saturday, and Sunday, which is a total of 43 x 4 = 172 cans. The total number of cans she collected last week is 111 + 172 = 283 cans.

Since Tina gets 5 cents for every can she recycles, she made 5 x 283 = $14.15 for recycling all of the cans she collected last week.

Therefore, Tina got $14.15 for her cans last week.

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Complete question is:

Tina collects cans to recycle at the supermarket. Last week, on Monday, Wednesday and Tursday, she collected 37 cans each day. On Tuesday, Friday,  Saturday, and Sunday, she collected 43 cans each day. Tina gets 5 cents for every can she recycles.  How much money did Tina get for her cans last week?

Answer:

Triangle : 1/5x 1/5y

The middle: 3/4x 3/4y

The last one: I do not know...

Step-by-step explanation:

Owing money can lead to the exponential growth of interest payments, making it increasingly difficult for the borrower to repay the debt and potentially causing long-term financial consequences.

When we owe money, the effects can be quite severe due to the exponential function of interest rates. This means that the longer we owe money, the more we end up paying in interest charges. This can quickly spiral out of control and lead to a cycle of debt that becomes increasingly difficult to break free from.

For example, if we owe $1,000 with an interest rate of 10%, after one year we will owe $1,100. However, after five years, we will owe $1,610, and after ten years, we will owe $2,593. This shows how the amount of interest we owe grows rapidly over time, making it increasingly difficult to pay off the original debt.

Therefore, it is crucial to pay off debts as soon as possible to avoid the harmful effects of exponential growth in interest rates. It is also important to carefully manage our finances and avoid taking on unnecessary debts in the first place to prevent this cycle from occurring.

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Yes, the room heater will fit into the robust box, which is 45 cm in width and 90 cm in height.

The cylindrical, which is frequently a lobed solid, comprises one of the most simple curvature geometric forms. In simple geometry, it is known as a prism with a circle as its basis. The term "cylinders" is also used to refer to an infinitely curved surface in a number of modern domains of topology and geometries. A "cylinder" is a two half object made up of curved surfaces with circle tops and bases. A cylinder is a two half solid figure with two bases that are both similar circles connected at its height, which is controlled by the separation of the legs from the center. Cans of iced drinks and the wicks from toilet paper are example of cylinders.

given

r = d/2 = 40/2 = 20 cm

v = pi *r*r*h

100 = 3.14 * 20*20 *h

100 = 1256*h

h = 0.08 cm

strong box = surface area of cuboid = 45 * 90

= 4050 cm2

surface area of water heater = A=2πrh+2πr2=2·π·20·0.08+2·π·202

≈2523.3

Yes, the room heater will fit into the robust box, which is 45 cm in width and 90 cm in height.

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Answer:

where is the data from the table?

Answer:

$1.71

Step-by-step explanation:

Answer:

0.57

Step-by-step explanation:

no prob

The time expected after 2 more weeks for the race is 5.71 minutes.

Option A is the correct answer.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

From the table,

The difference between the run time for the first week from the first day till the 7th day.

= 8.2 - 7.1

= 1.1

Similarly

In the second week, there will be a difference of 1.1 from 6.8 (assume)

Now,

6.8 - 1.1 = 5.7

Thus,

The time expected after 2 more weeks is 5.71 minutes.

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ANSWER:

1. translation: 3 units right and 1 unit down

2. 130°

A perfect positive correlation means that every time factor A occurs, factor B also occurs.

In statistics, correlation refers to the relationship between two variables. A perfect positive correlation means that as one variable increases, the other variable also increases in a consistent and linear manner.

In the case of a perfect positive correlation, every time factor A occurs (increases), factor B also occurs (increases) simultaneously. The occurrence of factor B is directly and consistently related to the occurrence of factor A.

For example, let's consider the relationship between studying time and exam scores. If there is a perfect positive correlation between these two factors, it means that every time a student spends more time studying, their exam scores also increase in a predictable and proportional manner.

It's important to note that a perfect positive correlation does not necessarily imply causation. While the two variables are strongly associated, it does not indicate that one variable directly causes the other. Correlation simply describes the relationship between the variables.

In summary, a perfect positive correlation means that whenever factor A occurs, factor B also occurs, demonstrating a consistent and linear relationship between the two variables.

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The values that van be put in the table based on the information will be:

Buying price (dollars) 100.

Mark-up 80.

Selling price 180

Commission 20

Profit 60

Buying price (dollars) 10

Mark-up 8

Selling price 18

Commission 2

Profit 6

Buying price (dollars) 55

Mark-up 44

Selling price 99

Commission 11

Profit 33

Buying price (dollars) 125

Mark-up 100

Selling price 225

Commission 25

Profit 75

It should be noted that the markup is 80% of the buying price. For example, when the buying price is $10, the markup will be:

= 80% × $10

= $8

The selling price is that addition of buying price and markup. This will be:

= $10 + $8

= $18

The commission is 25% of markup. This will be:

= 25% × 8

= $2

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Answer:

x=3

Step-by-step explanation:

5(x^2 - 9) - 5 = -5

5x^2 - 45 = 0

5x^2 = 45

x^2 = 9

x = 3

Answer:

3

Step-by-step explanation:

I did the test

Hope this helps :)

The temperature of the room we get by using Newton’s Law of Cooling is 75 degrees.

Given that the temperature of the soup was initially 120 degrees. Its temperature was 105 degrees after 10 minutes. It reached a temperature of 95 degrees after an additional ten minutes.

We need to estimate the temperature of the room.

According to the Newton's law of cooling temperature T(t) after time t is given by:

\(\mathrm{T(t) = T_s + (T_0 - T_s)e^{kt}}\)

Where,

\(\mathrm{T_0}\) = initial temperature [120 degree]

\(\mathrm{T_s}\) = surrounding temperature

k = constant

Plugging the values;

\(105 = \mathrm{T_s + (120 - T_s)e^{10k}}}\)

\(\mathrm{e^{10k}} = \mathrm{\frac{105 - T_s}{120 - T_s} }\)

Similarly,

\(95 = \mathrm{T_s + (105 - T_s)e^{10k}}}\)

\(\mathrm{e^{10k}} = \mathrm{\frac{95 - T_s}{105 - T_s} }\)

Equating the equations,

\(\mathrm{\frac{95 - T_s}{105 - T_s} } = \mathrm{\frac{105 - T_s}{120 - T_s} }\)

Solving the equations,

\(\mathrm{\frac{225-2T_s}{-15} } = \mathrm{\frac{200-2T_s}{-10} }\)

Multiplying by -30,

\(\mathrm{2(225-2T_s)} = \mathrm{2(200-2T_s)}\)

\(\mathrm{2T_s = 150}\)

\(\mathrm{T_s = 75}\)

Hence the temperature of the room was 75 degrees.

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This sentence is False, when the sample size is small, the sample percentage may not be equal to the population percentage.

In demographics, the sector population is the overall quantity of human beings presently residing. It turned into predicted by the United countries to have exceeded eight billion in November 2022. It took over 2 hundred,000 years of human prehistory and history for the human populace to attain one billion and only 219 years extra to attain 8 billion.

The human population experienced a non-stop boom following the Great Famine of 1315–1317 and the end of the Black dying in 1350 when it became nearly 370,000,000. the very best worldwide populace growth quotes, with increases of over 1.8% in line with 12 months, took place between 1955 and 1975, peaking at 2.1% between 1965 and 1970. The increased charge declined to one.1% between 2015 and 2020 and is projected to say no further within the twenty-first century. the worldwide population continues to increase, however, there's sizable uncertainty approximately its long-term trajectory due to converting fertility and mortality fees. The UN Department of Economics and Social Affairs tasks between 9 and 10 billion people by 2050 and offers an 80% self-assurance c language of 10–12 billion by using the cease of the twenty-first century, with a growth charge by using then of zero. other demographers are expecting that the human populace will start to decline in the 2d half of the 21st century.

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The surface area is given below:

Surface area refers to the total area that the surface of an object occupies. It is a measure of how much-exposed area there is on the outside of the object.

The surface area of an object can be calculated by adding up the areas of all of its faces or surfaces.

The formula for surface area varies depending on the shape of the object. For example, the surface area of a rectangular prism can be calculated by adding up the areas of all six of its faces, while the surface area of a sphere can be calculated using a different formula.

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Answer:

69 years

Step-by-step explanation:

Data provided in the question

Born date of an Ancient Greek = April 1st 35 BC

Diet date of an Ancient Greek = Aril 1st 35 AD

Based on the above information

We can say that

35 + 35 = 70

We deduct 1 as there is no zero

So, it would be

= 70 - 1 year

= 69 years

Hence, An ancient greek lives 69 years and the same is to be considered

Answer:

80

Step-by-step explanation:

20 percent is 16 questions

then 100/20=5

5 times 16 is 80

Answer:

\(\large \boxed{\text{22.07 m}}\)

Step-by-step explanation:

The formula for the volume (V) of a sphere is:

V = ⁴/₃πr³

We can use this equation to calculate the radius (r).

\(\begin{array}{rcl}45001 & = & \dfrac{4}{3} \pi r^{3}\\\\33750 & = &\pi r^{3}\\10740 & = &r^{3}\\r & = & \textbf{22.07 m}\\\end{array}\\\text{The radius of the great circle is $\large \boxed{\textbf{22.07 m}}$}\)

Answer:

the top

Step-by-step explanation:

the bottom is the classic parabola which is a 2nd degree polynomial it has just been translated left and down but the degree remains the same. the top shows a function with many more inflection points characteristic of odd nth degree polynomial equations

Answer:

first option in the photo

Step-by-step explanation:

that would be C on edg 2021