Explain why the following is incorrect x3v4=x7

Answer:

\(9x + 4 - 3y^2\)

Step-by-step explanation:

Given

\(5x+4x - 1+3 - 7y^2 +2+4y^2\)

Required

Simplify

\(5x+4x - 1+3 - 7y^2 +2+4y^2\)

Collect Like Terms

\(5x+4x - 1+3 +2+4y^2- 7y^2\)

Simplify like terms

\(9x + 4 - 3y^2\)

Hence,

\(5x+4x - 1+3 - 7y^2 +2+4y^2\) \(= 9x + 4 - 3y^2\)

Answer:

3 years

Step-by-step explanation:

I gotchu :)

So, the base equation is: ax+by=c

x int is c/a

y int is c/b

and the slope is -a/b

So basically, what I wrote above is how to get each aspect of the line using the standard form formula.

The "nonzero" part means that each integer (the A, B, AND C in the formula above) cannot be 0, as that would mean that everything will end up equaling to 0, which does not create the line. So basically, the answer would be:

x int is c/a

y int is c/b

and the slope is -a/b

^ if you apply these to any standard form, you will get the thing I stated next to it. For example, if the standard form equation is:

5x+6y=5

if you want to find the slope, you will do -a/b, and that will give you -5/6, which is your slope

Hope this helps :)

Answer:

taco

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

In 2 hours they wash 8 cars total so...

8

16

24

The extra time is 15 mins for 2 cars

Answer:

√61

Step-by-step explanation:

→ Find the distance between y coordinates

2 --4 = 6

→ Find distance between x coordinates

2--3 = 5

→ Find distance

√6² + 5² = √36 + 25 = √61

For the quadratic equation y = x² - 14x + 13, the vertex is at  (-7, 160)

Generally for a quadratic equation like:

y = ax² + bx +c

The vertex is located at the x-value:

x = -b/2a

So in our case:

y = x² - 14x + 13

The vertex is located at:

x = -14/2*1 = -7

Evaluating in that value, we will get:

y = (-7)² - 14*-7 + 13 = 160

So the vertex of this quadratic equation is at (-7, 160)

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In the equation y = $7.20x + $790, "y" represents the total cost. An equation is a mathematical statement that shows the relationship between two or more variables. In this equation, there are two variables - "x" and "y". The variable "x" represents the number of units produced or sold, while "y" represents the total cost.

The coefficient of "x" in the equation, which is 7.20, represents the variable cost per unit. This means that for each unit produced or sold, there is an additional cost of $7.20. The constant term, which is $790, represents the total fixed costs. Fixed costs are those costs that do not vary with the number of units produced or sold.To find the total cost of producing or selling a certain number of units, we can plug in the value of "x" into the equation and solve for "y". For example, if we want to find the total cost of producing 100 units, we can substitute x=100 into the equation:
y = $7.20(100) + $790
y = $720 + $790
y = $1510
Therefore, the total cost of producing 100 units is $1510. In summary, "y" represents the total cost in the given equation, which is determined by both fixed and variable costs.
In the equation y = $7.20x + $790, "y" represents option C: total costs. This equation has two components: "$7.20x" represents the variable costs per unit, where x is the number of units, and "$790" represents the total fixed costs. By adding these two components together, you get the total costs (y) for producing x units.

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Answer

\(C=2.5\pi\)

Step-by-step explanation:

Radius is always half of the diameter so, \(\frac{2.5}{2} \\\) is equal to \(1.25\).

The Formula for Circumference is \(C=2\pi r\)

Since we found out the radius, we need to basically substitute (or insert) it into the radius spot so the next step will be: \(C=2\pi (1.25)\)

Then we multiply (2)(1.25) to get an answer of 2.5 (which we already know)

So our answer is going to be \(C=2.5\pi\)

Hope this helped and answers your question! Have a great rest of your day/night!

The line of the equation should be y = 20x + 320 and travelers will spend about $620 billion in the year 2008. So, the option c is correct.

In the given question, we have to write an equation for the line of best fit and then predict how much money travelers will spend in 2008.

The graph of the question is given below:

From the graph the points are (1.5, 350) and (4, 400)

As we know that the formula of the equation of line is:

y-y(1) = {y(2)-y(1)}/{x(2)-x(1)} (x-x(1))

x(1) = 1.5, y(1) = 350, x(2) = 4 and y(2) = 400

Now putting the values

y-350 = (400-350)/(4-1.5) (x-1.5)

y-350 = 50/2.5 (x-1.5)

y-350 = 20(x-1.5)

y-350 = 20x-30

Add 350 on both side, we get

y = 20x + 320

So, the line of the equation should be y = 20x + 320.

So that travelers will spend about $620 billion in the year 2008.

Hence, the option c is correct.

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Answer:

m∠FAL = 119°

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

area of a cylinder;

\(2\pi.r ^{2} + 2\pi.rh\)

\( = 2\pi.r (r +h)\)

\( = 2 \times 3.14 \times 4 \times (10 + 4)\)

\( = 351.68\)

The playground's length and breadth are 12 yards and 17 yards, respectively.

The playground's area is 204 square yards, according to the statistics provided in the inquiry.

204 square yards is the area.

The playground's breadth is 5 yards more than its length.

Let the playground be 'l' yards long.

The playground's width will then be (l + 5) yards.

The formula for the playground area is Length × Width.

A =  Length x width

204 = l (l + 5)

204 = + 5l

+ 5l - 204 = 0

+ 17l - 12l - 204 = 0

l (l + 17) -12 (l + 17) = 0

(l + 17) (l - 12) = 0

(l + 17) = 0 or (l - 12) = 0

l = -17 or l = 12

The length value cannot be negative.

As a result, the length is 12 yards.

The breadth is thus equal to l + 5.

Width = 12 + 5

17 yards wide

As a result, the length is 12 yards and the breadth is 17 yards.

Option (b) is the right answer.

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A playground has a surface area of 204 yd2. The playground's breadth is 5 yards greater than its length. Determine the playground's length and breadth.

a.) 17 yards in length, 22 yards in breadth

b.) 12 yard length, 17 yard breadth

c.) 22 yard length, 17 yard breadth

d.) 17 yard length, 12 yard breadth

115.

The point estimate for the average IQ score of the population of 3000 college students based on a simple random sample of 150 students with an average IQ score of 115 and a standard deviation of 10 is 115.

Therefore, the correct option is 115.

A point estimate is an estimate of a population parameter based on a single value or point. It is obtained by using statistics collected from a sample to infer population values. It can be a single value or a range of values that best represents the unknown population parameter.

Based on the given information, a simple random sample of 150 students is drawn from a population of 3000 college students.

Among sampled students, the average IQ score is 115 with a standard deviation of 10. The point estimate, in this case, is the average IQ score of the population, which is estimated to be 115 based on the sample data.

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Answer:

Remember that for a subset of a ring to be an ideal it must be closed under addition and under taking multiples by elements of the ring, and in this case the set of all composite integers is not closed under addition.

Step-by-step explanation:

Telemedicine is a way for patients and doctors to connect through a version of video chat or possibly just a voice call. The benefit of this is that we are not exposing ourselves or others to the virus. This will help slow or stop the spread of the virus.

Hope this helps, please mark as brainliest :)

Answer:

125.6 cm²

Step-by-step explanation:

the area of sector = 225/360×3.14×8²

= ⅝ × 3.14 × 64

= 3.14 × 40

= 125.6 cm²

Answer:

x = 27°

Step-by-step explanation:

Because of the two parallel lines, we can conclude that

corner DAB = corner FDE = 2x

In ∆DAB

Corner DAB = 2x

Corner BDA = 2x (given)

Corner ABD = 72 (given)

The sum of three corners in any trianle, adds up to 180°.

So if one corner is 72° and the other two corners are the same, then the two corners together, must be 180-72 = 108°.

For each corner that is 108/2= 54

so corner BDA = 54° and also corner DAB = 54°.

Given was BDA = 2x and BDA = 54°

so 2x = 54°

then x = 27°

Answer: C) y=-2+2

Step-by-step explanation: Rise over run says that the slope is -2 and the line hits the y axis at +2 so the equation would be y = -2 + 2.

Answer:

\( \frac{y - 3}{x - 0} = \frac{3 - 1}{0 - 1} = \frac{2}{ - 1} \\ \frac{y - 3}{x} = - 2 \\ y - 3 = - 2x\\ 2x + y - 3 = 0 \\y = - 2x + 3 \\ \boxed{f(x) = - 2x + 3}\)

hope this helps.

Answer: What is the question

Step-by-step explanation:

5.1²

5.1 * 5.1

26.01

Answer:

B) 24

D) 48

Step-by-step explanation:

Given:

Two fractions

\(\dfrac{1}6 \\and\\\dfrac{3}8\)

To find:

Number that can be chosen as Common denominator such that numerator is also a whole number ?

Solution:

Common denominator for two fractions \(\frac{p}{q}\) and \(\frac{r}{s}\) is chosen as LCM or multiple of LCM of (q, s).

OR

Common denominator for two fractions is chosen as the Least Common Multiple or multiple of LCM of denominators of the two fractions.

The denominators of the given fractions are 6 and 8.

Let us factorize and try to find the LCM of 6 and 8.

\(6 = \underline2 \times 3\\8 = \underline2 \times 2\times 2\)

Common part of the denominators (as underlined) will be taken only once.

So, \(LCM = 2 \times 3 \times 2 \times 2 =24\)

Multiples of LCM, 24 = 48

So, the correct answers are:

B) 24 and

D) 48

Answer:

7

Step-by-step explanation:

this is probably a 45-45-90 triangle if its both legs

Historical scientists deal with falsification by rigorously analyzing evidence, using peer review and scholarly discourse, and revising hypotheses based on new discoveries and interpretations.



Historical scientists deal with falsification by employing rigorous methodologies and critical analysis of evidence. They strive to gather as much relevant data as possible to test hypotheses and theories. This is done through meticulous research, including the examination of primary sources, archaeological artifacts, historical records, and other forms of evidence. Historical scientists also engage in peer review and scholarly discourse to subject their findings to scrutiny and criticism.

The mechanism used by historical scientists to falsify hypotheses involves a combination of evidence-based reasoning and the application of established principles of historical analysis. They aim to construct coherent and logical explanations that are supported by the available evidence. If a hypothesis fails to withstand scrutiny or is contradicted by new evidence, it is considered falsified or in need of revision. Historical scientists constantly reassess and refine their hypotheses based on new discoveries, reinterpretation of existing evidence, and advancements in research techniques. This iterative process helps to refine our understanding of the past and ensures that historical knowledge remains dynamic and subject to revision.

Therefore, Historical scientists deal with falsification by rigorously analyzing evidence, using peer review and scholarly discourse, and revising hypotheses based on new discoveries and interpretations.

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Answer:

5+0.1x=3-0.9x

2=-0.10x

1=-0.5x

x=-2

Answer is B good luck comrade<33!!

True. An individual can assign a subjective probability to an event based on their knowledge and personal beliefs about the event.

Subjective probability is a measure of an individual's degree of belief or confidence in the likelihood of an event occurring, based on their subjective assessment of the available information.

Subjective probabilities can be influenced by various factors, including personal experiences, biases, and individual judgment. They are subjective in nature because they are based on an individual's own perception and interpretation of the event, rather than being derived from objective or empirical data.

Subjective probabilities are often used in decision-making under uncertainty, where individuals assess the likelihood of different outcomes based on their subjective understanding of the situation. While subjective probabilities may vary among individuals, they play an important role in decision-making processes, allowing individuals to make informed judgments and choices based on their personal knowledge and beliefs.

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9514 1404 393

Answer:

  axis of symmetry: x = 2

  see below for a graph

Step-by-step explanation:

You can complete the square to put the equation in vertex form.

  y = (x^2 -4x +4) -1 -4

  y = (x -2)^2 -5 . . . . . . vertex is (2, -5)

The equation of the axis of symmetry is the equation of the vertical line through the vertex:

  x = 2 . . . . . axis of symmetry

__

Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.

Answer:

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

Step-by-step explanation:

Matthhh

Answer:

x/a^2

Step-by-step explanation: Please tell me if this is right or wrong