Which equation is true when n = 1.2?

10n = 1.2

n + 1 = 1.2

5 + n = 6.2

1.2n = 10

Answer: I think its D

Step-by-step explanation: If im right plz give brainliest

To show that there is no € > 0 such that the E-neighborhood of X in R" is contained in U, we first need to understand what the E-neighborhood of X in R" means. There is no ε > 0 such that the ε-neighborhood of X in R² is contained in U.

The E-neighborhood of X in R" is the set of all points in R" that are within a certain distance E of X. In other words, it is the set of all points that are within E units of distance from any point in X.

Now, we know that X is a subset of (-1, 1) x 0 in R², which means that X consists of all points that lie between the interval (-1, 1) on the x-axis and 0 on the y-axis. We also know that U is an open ball of radius 1 centered at the origin in R², which means that U consists of all points that are within a distance of 1 unit from the origin.

If we assume that there is some € > 0 such that the E-neighborhood of X in R" is contained in U, then we can choose a point in X that is on the x-axis and is at a distance of E units from the origin. Let's call this point A.

Since A is in X, it lies between the interval (-1, 1) on the x-axis and 0 on the y-axis. However, since A is at a distance of E units from the origin, it must lie outside the open ball U of radius 1 centered at the origin.

This contradicts our assumption that the E-neighborhood of X in R" is contained in U. Therefore, there is no € > 0 such that the E-neighborhood of X in R" is contained in U.

To show there is no ε > 0 such that the ε-neighborhood of X in R² is contained in U, consider the following:

Let X denote the subset (-1, 1) x 0 of R², and let U be the open ball B(0, 1) in R², which contains X. Now, let's assume there exists an ε > 0 such that the ε-neighborhood of X is contained in U. This would mean that every point in X has a distance of less than ε to some point in U.

However, consider the point (-1, 0) in X. Since U is the open ball B(0, 1), the distance from (-1, 0) to the center of U, which is the point (0, 0), is equal to 1. Any ε-neighborhood of (-1, 0) in R² would have to include points that are further than 1 unit away from the center of U. This contradicts the assumption that the ε-neighborhood of X is contained in U.

Thus, there is no ε > 0 such that the ε-neighborhood of X in R² is contained in U.

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Answer:

a

Step-by-step explanation:

Answer:D

there is 5 who pay more then 50$ and there is 15 who pay less then 50$

do the math 75% pay less

Step-by-step explanation:

The probability that the last ball taken will be blue is 1.

This is because each time a ball is drawn, it is replaced by a blue one. Therefore, by the time the last ball is drawn, all of the balls in the bag will be blue.

To explain this further, let's look at the process step by step:

1. There are 8 blue and 2 red balls in the bag initially.
2. One ball is drawn and replaced by a blue one. Now there are 9 blue and 1 red ball in the bag.
3. Another ball is drawn and replaced by a blue one. Now there are 10 blue balls in the bag.
4. Since all of the balls in the bag are now blue, the probability of drawing a blue ball on the last draw is 1.

Therefore, the probability that the last ball taken will be blue is 1.

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Answer: s = p - 0.25p; $30

Step-by-step explanation:

      First, we need to know that a percent divided by 100 becomes a decimal.

          25% / 100 = 0.25.

      Next, we will use this equation because it takes 25% off of the original price (p) by subtracting 0.25p from p.

          s = p - 0.25p

      Lastly, we will substitute 40 in for 0 and solve.

          s = ($40) - 0.25($40)

          s = $30

For this visualization, a bar chart would be the best choice.

A bar chart is an effective way to visually compare different categories or groups. In this case, the data analyst can create a bar chart where each bar represents a city, and the height of the bar corresponds to the population of that city. The analyst can include only the top ten most populous cities in North Carolina and color the bars differently based on whether the population is below or above 250,000 people. By doing so, it becomes easy to identify which cities fall below the threshold, as they will have shorter bars compared to those above the threshold. The clear distinction between the bar heights allows for quick visual comparison and provides a straightforward representation of the population distribution among the top ten cities in North Carolina.

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The partial products of 242 × 28 are 4,000, 1,600, 840 and 336 and the value of 242 × 28 exists 6,776.

To estimate the partial product of two numbers, first, we write both numbers as the sum of the place values of the digits. Multiply each place value of the first number by the place value of the second number.

Given: 242 × 28

(200 + 42) × (20 + 8)

(200 × 20) + (200 × 8) + (42 × 20) + (42 × 8)

simplifying the above equation, we get

200 × 20 = 4,000

200 × 8 = 1,600

42 × 20 = 840

42 × 8 = 336

The above values are the partial product.

4,000 + 1,600 + 840 + 336 = 6,776

Therefore, the partial products of 242 × 28 are 4,000, 1,600, 840 and 336 and the value of 242 × 28 exists 6,776.

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Answer:

8

Step-by-step explanation: this is easy lol

Answer:

Step-by-step explanation:

If you don't know, the Pythagorean Theorem states that a^2+b^2=c^2 in a right triangle where a and b are the legs and c is the hypotenuse.

Imagine unfolding a cone. It would become part of a circle. Therefore, to find the lateral surface area(the surface are not including bases), you have to find the surface area of this part of the circle. The circumference of the entire circle is 6*pi*sqrt10. The circumference of this partial circle is the circumference of the base of the cone which is 2*3*pi=6pi. therefore, the percent of the circle is 6*pi/6*pi*sqrt10=1/sqrt10. 1/sqrt10*90pi=90*sqrt10*pi/10=9*sqrt10*pi.

the area of the base is 3^2*pi=9pi. the answer is then 9pi(1+sqrt10)

Step-by-step explanation:

= 10x - 5 + 3x - 2

= (10 + 3)x + (-5 - 2)

= 13x - 7

Answer:

no

Step-by-step explanation:

because when you distribute 3(x + 2y) it will be 3x+6y . you multiply the number that's outside with the numbers that are inside the parenthesis. so 3x+6y is not equivalent to 3x+2y

Answer:  Covering the entire box is the surface area, which is 664 in.2.

Step-by-step explanation: took the test on edg 2020

Answer:

guy above me is correct it is c or 664 in3

Step-by-step explanation:

just did the quiz

The answer to your question is that the only way to demonstrate causation is to conduct a controlled experiment. This domain involves manipulating one variable and measuring the effect it has on another variable while holding all other variables constant.

correlation simply shows a relationship between two variables, but it doesn't prove that one variable causes the other. There could be other factors at play that are influencing both variables. For example, there may be a correlation between ice cream sales and crime rates, but this doesn't mean that ice cream causes crime or vice versa. It's possible that a third variable, such as temperature, is influencing both ice cream sales and crime rates.

further into the complexities of establishing causation, such as the need for random assignment in experimental studies, the importance of replicating findings, and the challenges of applying experimental findings to real-world situations. However, the key point is that a controlled experiment is the most reliable method for establishing a causal relationship between variables.

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For the given blank, a confidence interval is made from a range value to estimate the truth for a population parameters.

As given in the question,

Points required for a confidence interval are as follow:

To have information about the whole population,

Confidence interval = Sample mean ± Margin error.

Therefore, for the given blank, a confidence interval is made from a range value to estimate the truth for a population parameters.

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The quadratic function of h (x) in vertex form will be;

⇒ h(x) = (x + 2)² − 3

What is substitution method?

To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.

Given that;

The values of x and h (x) for the quadratic function is given as;

x = -3, -2, -1, 0, 1, 2, 3,

h (x) = -2, -3, -2, 1, 6, 13, 22

Now,

Let the quadratic function is,

h (x) = ax² + bx + c

Substitute x = -3 and h (x) = -2 in above quadratic function we get;

h (x) = ax² + bx + c

- 2 = a × (-3)² + b × -3 + c

- 2 = 9a - 3b + c

And, Substitute x = -2 and h (x) = -3 in above quadratic function we get;

h (x) = ax² + bx + c

- 3 = a × (-2)² + b × -2 + c

- 3 = 4a - 2b + c

And, Substitute x = -1 and h (x) = -2 in above quadratic function we get;

h (x) = ax² + bx + c

- 2 = a × (-1)² + b × -1 + c

- 2 = a - b + c

After solving we get;

a = 1 , b = 4 and c = 1

Substitute all the values in above quadratic equation, we get;

h (x) = ax² + bx + c

h (x) = 1 × x² + 4x + 1

h (x) = x² + 4x + 1

h (x) = x² + 4x + 4 - 4 + 1

h (x) = (x + 2)² - 3

Thus, The quadratic function of h (x) in vertex form will be;

⇒ h(x) = (x + 2)² − 3

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Answer:

AAS

Step-by-step explanation:

have a good day:) .....

fobt ≈ 1.945. This is the calculated value of the F-statistic for the given data.

The fobt, also known as the F-statistic, is used in statistical analysis to assess the significance of differences between groups or treatments. It is calculated by dividing the mean square variation between groups (MSbetween) by the mean square variation within groups (MSwithin).

In this case, we are given MSbetween = 54.2 and MSwithin = 27.9. To find fobt, we use the formula fobt = MSbetween / MSwithin. Substituting the given values, we have fobt = 54.2 / 27.9.

Dividing these two values gives us fobt ≈ 1.945. This is the calculated value of the F-statistic for the given data. The significance of this value depends on the context and the specific analysis being performed. Generally, the fobt value is compared to a critical value or p-value to determine if the observed differences between groups are statistically significant.

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Answer:

The answer is

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

The original line is 2x + y = 1

We must first write the equation in the general form above

That's

y = - 2x + 1

Comparing with the general equation above

Slope = - 2

Since the lines are parallel their slope are also the same

Slope of parallel line = - 2

So the equation of the line using point

( - 1 , 4) and slope - 2 is

We have the final answer as

Hope this helps you

Answer:

( x + 4 ) ( x + 1 )

Step-by-step explanation:

x² + 5x + 4

= x² + 1x + 4x + 4

= x ( x + 1 ) + 4 ( x + 1 )

= ( x + 4 ) ( x + 1 )

Hence, factorised.

The end of the plank is sliding along the ground at a rate of approximately -0.08 m/s when it is 1.4 meters from the wall of the building. The negative sign indicates that the end of the plank is sliding in the opposite direction.

To find how fast the end of the plank is sliding along the ground, we can use related rates. Let's consider the position of the end of the plank as it moves along the ground.

Let x be the distance between the end of the plank and the wall of the building, and y be the distance between the end of the plank and the ground. We are given that dx/dt = 0.26 m/s, the rate at which the worker pulls the rope.

We can use the Pythagorean theorem to relate x and y:

x² + y² = 5²

Differentiating both sides of the equation with respect to time, we get:

2x(dx/dt) + 2y(dy/dt) = 0

At the given moment when x = 1.4 m, we can substitute this value into the equation above and solve for dy/dt, which represents the rate at which the end of the plank is sliding along the ground.

2(1.4)(0.26) + 2y(dy/dt) = 0

2(0.364) + 2y(dy/dt) = 0

0.728 + 2y(dy/dt) = 0

2y(dy/dt) = -0.728

dy/dt = -0.728 / (2y)

To find y, we can use the Pythagorean theorem:

x² + y² = 5²

(1.4)² + y² = 5²

1.96 + y² = 25

y² = 23.04

y = √23.04 ≈ 4.8 m

Substituting y = 4.8 m into the equation for dy/dt, we have:

dy/dt = -0.728 / (2 * 4.8) ≈ -0.0757 m/s

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Given:

There are 19 oak trees in a park.

There will be 56 oak trees in the park the plantation.

To find:

How many oak trees did they plant today?

Solution:

We have,

Initial number of oak trees = 19

Number of trees after plantation = 56

Now, the number of oak trees they plant today is

New trees = Number of trees after plantation - Initial number of oak trees

                 = 56 - 19

                  = 37

Therefore, they did plant 37 oak trees today.

Answer:

100% - 40% - 25% = 35%

35% of 1400 = 490 cards

Step-by-step explanation:

The best answer regarding the effects of carbon monoxide is option c, CO results in less oxygen loading hemoglobin but unloading is not changed.

Carbon monoxide binds up more tightly to the hemoglobin as compared to the oxygen molecules. This reduces the oxygen-carrying capacity of the blood and results in less oxygen loading onto hemoglobin.

However, once oxygen is already bound to hemoglobin, CO does not significantly affect its release or unloading. Therefore, option c is the most accurate statement among the given choices.

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The given p, α, and i using the exponentiation by squaring algorithm.

To prove that 2 is a primitive root of 11, to show that every integer a with 1 ≤ a ≤ 10 can be expressed as a ≡ 2²i (mod 11) for a unique i with 0 ≤ i ≤ 9.

verify this by checking the powers of 2 modulo 11:

2² ≡ 1 (mod 11)

2²≡ 2 (mod 11)

2² ≡ 4 (mod 11)

2³ ≡ 8 (mod 11)

2² ≡ 5 (mod 11)

2³ ≡ 10 (mod 11)

2³ ≡ 9 (mod 11)

2³ ≡ 7 (mod 11)

2² ≡ 3 (mod 11)

2³ ≡ 6 (mod 11)

The remainders obtained from the powers of 2 cover all the integers from 1 to 10 modulo 11. Additionally, each remainder is unique, express any integer between 1 and 10 as a power of 2 modulo 11.

To find log₂(9), to determine the exponent i such that 9 (mod 11). From the list of powers of 2 above, that 2³= 9 (mod 11). Therefore, log₂(9) = 6.

A given p, α, and i, where α is a primitive root of p and i is the discrete logarithm or index use the algorithm of exponentiation by squaring.

The algorithm for computing a given p, α, and i is as follows:

Set result = 1.

Initialize a binary representation of i, e.g., i = b[m]b[m-1]...b[1]b[0].

For j from m to 0:

a. Square the current result: result = result × result (mod p).

b. If bj = 1, multiply the current result by α: result = result × α (mod p).

Return the final result.

This algorithm takes advantage of the binary representation of i to compute a efficiently. By squaring the current result and multiplying by α only when necessary, compute a in logarithmic time complexity with respect to i.

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The value of x if YR is a perpendicular bisector of HB is 5

The given parameters are:

YR is a perpendicular bisector of HB.

HY = 7x + 13

HW = 8y - 15

WB = 3y + 21

YB = 12x - 12.

The statement "YR is a perpendicular bisector of HB" implies that:

The line segment YR divides the line segment HB into equal halves

So, we have the following equation

HY = YB

Substitute the known values in the above equation

7x + 13 = 12x - 12

Collect the like terms in the above equation

7x - 12x = -13 - 12

Evaluate the like terms in the above equation

-5x = -25

Divide both sides of the equation by -5

x = 5

Hence, the value of x if YR is a perpendicular bisector of HB is 5

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Answer:

x=-5 y=2

Step-by-step explanation:

1) multiplying equation 1 by 4 and multiplying equation 2 by 2 .

2)adding them we get value of y.

3) replacing value of y in either of given equation

Answer: You can find after i explain how

Step-by-step explanation:

Add the x's together

So the problem is 6x + 1 =

This is a triangle so it = 180

6x + 1 = 180

__________

Subtract 1 from itself so 6x crosses out

Then subract 1 from 180

Which = 179

Now, divide 6 from both sides 6x is crosses out

You are left with x = (the number you got when dividing 179 / 6)