Which is the answer. A B C D?

Answer:

Hello Everybody Love Pizza

Step-by-step explanation:

36

that is the answer

Answer:

36%

Step-by-step explanation:

"Percent'' or ''%'' means ''out of 100'' or '' per 100'',

Therefore x% can be written as x/100.

So we can write and solve for x;

27/75= x/100

100 X 27/75 = 100 X x/100

2700/75 = 100 X x/100

36=x

27/75= 36/100= 36%

Hope this helped

Answer:

His hourly rate is $8.15.

Step-by-step explanation:

The hourly rate is how much he earns in one hour. We know how much he earns in 42 hours ($342.3).

So what we need to do is to divide that amount ($342.3) by 42.

And we get $8.15.

Answer:

10

Step-by-step explanation:

sorry if i got it wrong!:(

Answer:

10

Step-by-step explanation:

50 times .2 is 10

Congruent segments are segments of equal length.

Congruent angles are angles of equal measure and their corresponding sides are equal.

We know that, a line segment is formed by bounding two distinct points on a line.

A part of a line that is bounded by two distinct end points. It contains every point on the line that is between its endpoints.

Congruent segments: -

The segments are congruent segments, that have the same length.

It is defined as any line segment having equal measure.

These segments do not need to have the same position or orientation.

We know that an angle formed by two rays or lines that have common endpoint.

The two rays are called the sides of an angle. And the common endpoint is called the vertex.

Congruent angles:

These are the angles that are identical to each other. the measure of these angles is equal to each other.  Their corresponding sides and angles are of equal measure.

Therefore, congruent segments are segments of equal length.

Congruent angles are angles of equal measure and their corresponding sides are equal.

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Answer:

x=7

Step-by-step explanation:

If BD is the bisector, then  ABD = DBC

3x-1 = 34-2x

Add 2x to each side

3x-1+2x = 34-2x+2x

5x-1 =34

Add 1 to each side

5x-1+1 = 34+1

5x= 35

Divide by 5

5x/5 = 35/5

x = 7

Answer:

B. BD and point E

Step-by-step explanation:

BD and point E is the only choice with both of them lying on the plane, the others lie on other planes

If a nearsighted cow with eye level at 4 feet above the ground stands feet from the billboard. The cow must stand about 14.87 feet away from the billboard to maximize the angle θ.

We can use basic trigonometry to find the angle θ that the billboard subtends at the cow's eye. Since the cow is nearsighted and her eye level is 4 feet above the ground, we can consider the distance from the ground to her eye as the height of her eye. Let d be the distance from the cow to the billboard, then we have:

tan(θ) = (9 + 4) / (10 + x) = 13 / (10 + x)

To maximize θ, we need to maximize the value of tan(θ), which means finding the value of x that makes 13 / (10 + x) as large as possible. We can do this by taking the derivative of 13 / (10 + x) with respect to x and setting it to zero:

d/dx (13 / (10 + x)) = -13 / (10 + x)^2 = 0

This derivative is only zero when x approaches infinity, which is not a practical solution. Therefore, the maximum value of θ occurs when x is as large as possible, which is when the cow is standing at the farthest point from the billboard.

This would be the point where the cow's line of sight is tangent to the bottom of the billboard, which occurs when the distance from the cow to the billboard is:

x =√(9^2 + 10^2) - 4 ≈ 14.87 feet

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Linear RegressionThe linear regression is one of the most extensively used supervised machine learning algorithms. It is used for predicting a continuous outcome variable using a set of predictor variables

.Features:It is easy to interpret and is suitable for identifying linear relationships between variablesSimple to use and it is a fast algorithmIt is versatile and has a variety of applicationsIt can be used for both simple and complex regression problemsSteps for Creating Simple Linear Regression in Python

Step 1: Importing the required libraries. The numpy and pandas libraries are used to handle the dataset and perform matrix operations, and the matplotlib library is used to plot the graphs. Finally, the sklearn library is used to implement the linear regression model.

Step 2: Load the dataset. A dataset with two variables is generated using the np.arrange() method.

Step 3: Divide the dataset into training and testing datasets. This is done using the train_test_split() method.

Step 4: Build the linear regression model. The fit() method is used to fit the model to the dataset.

Step 5: Plot the results. The scatter() method is used to plot the dataset and the plot() method is used to plot the linear regression line.

Step 6: Make predictions. The predict() method is used to make predictions using the model and the test dataset.Now, let's move to multiple linear regression.Multiple Linear RegressionMultiple linear regression (MLR) is a statistical technique that uses several explanatory variables to predict the outcome of a response variable. The goal of multiple linear regression is to model the linear relationship between the explanatory variables and response variable.Features:Multiple linear regression has the ability to model the relationship between the explanatory variables and response variableIt can be used to identify the most important factors that influence the response variableIt can be used to determine the relationship between the response variable and each of the explanatory variables in the modelIt can be used to make predictions based on the explanatory variables and their relationship with the response variableIt is suitable for handling a large number of explanatory variablesSteps for Creating Multiple Linear Regression in Python

Step 1: Importing the required libraries. The numpy and pandas libraries are used to handle the dataset and perform matrix operations, and the matplotlib library is used to plot the graphs. Finally, the sklearn library is used to implement the linear regression model.

Step 2: Load the dataset. A dataset with three variables is generated using the np.arrange() method.

Step 3: Divide the dataset into training and testing datasets. This is done using the train_test_split() method.

Step 4: Build the linear regression model. The fit() method is used to fit the model to the dataset.

Step 5: Make predictions. The predict() method is used to make predictions using the model and the test dataset.The linear regression equation is given by: y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept. The slope of the line is the change in the dependent variable for every unit change in the independent variable, and the y-intercept is the value of y when x is equal to zero.

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Answer:

48 and 32

Step-by-step explanation:

both numbers get rounded by 8 going up and down rounding it to 40

Answer:

the correct answer is d

Step-by-step explanation:

the answer is d because most of the time when you take an eqation like -4(x-2)+5x and you flip some of the signs it changes the outcome

so x changes the eqation then when you siplify both sides you get

x+8

and

x

so x+8=x that has no solution to the eqation

all of the others come out to x+8 and the will all create infininte solutions other than d

The expression can be written on the other side of the equation is x+8.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given expression is -4(x-2)+5x.

Here, the expression can be simplified as

-4(x-2)+5x

= -4x+8+5x

= x+8

Hence, the expression can be written on the other side of the equation is x+8.

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9514 1404 393

Answer:

  a) 9/2 = 4.5, bushels per hour

  b) (3, 10), (6, 20), (9, 30), (12, 40)

  c) Shawn

Step-by-step explanation:

a) The line goes through the grid point (4, 18), so its slope is ...

  18/4 = 4.5 . . . . slope = "unit rate"

The units are (y-units)/(x-units) = bushels/hour.

__

b) You have correctly filled in the table.

Time-values are 3, 6, 9, 12.

Fruit values are 10, 20, 30, 40.

The unit rate for Carla is ...

  10 bu/(3 h) = 3 1/3 bushels/hour ≈ 3.33 bushels/hour

__

c) Shawn's unit rate of 4.5 bushels per hour is greater than Carla's unit rate of 3.33 bushels per hour. Shawn picked fruit at a faster pace.

Answer:

160,000? i think

Step-by-step explanation:

Answer: 1,000,000

Step-by-step explanation:

40%=.4

x * .4 = 400,000

x = .4 / 400,000

x = 1,000,000

Answer: its 270.1087 degrees

Step-by-step explanation:

Solution for given inequality is \(-5\leq x\leq -2\)

                                         or         \(x\) ∈ [ -5 , -2]

 a.) Solve  -24 <= 4x - 4 <= -12

Case I :

                      -24 <= 4x - 4                          

                     \(-24 + 4\leq 4x\)

                                       \(-20 \leq 4x\)

                                             \(\frac{-20}{4} \leq x\)

                                                    \(-5\leq x\)   ........ (I)

Case II :

                     4x - 4 <= -12

                      \(4x\leq -12+4\)

                           \(4x\leq -8\)

                              \(x\leq \frac{-8}{4}\)

                                 \(x\leq -2\)   ......................(II)

combining (I) and (II) we get,

                              \(-5\leq x\leq -2\)

b). graph of

                              \(-5\leq x\leq -2\) , refer the attachment

c). Solution in interval

                                   \(x\) ∈ [ -5 , -2]

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The value of b in an expression which is equivalent to bx and both a and b are constants will be 3a.

Given that the expression is equivalent to bx,

where b is a constant, and a is also a constant.

We are to find the value of b.

To solve this question, we need to remember that a constant multiplied by a variable is the coefficient of that variable. Thus the coefficient of x in the expression given will be the value of b.

Hence, b = 3a. Therefore, the value of b is 3a.

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The equation that represents the constraint of having enough dough to make either 6 Large pizzas (L) or 12 Small pizzas (S) is option D, L + 2S ≤ 12.

To determine the correct equation representing the constraint, we need to analyze the given information. We have two options: making 6 Large pizzas or making 12 Small pizzas. This implies that the amount of dough used for the Large pizzas is equivalent to the amount used for 2 Small pizzas.

Let's consider the variables L and S, representing the number of Large and Small pizzas respectively. If we use the equation L + 2S ≤ 12, it states that the total number of Large pizzas (L) plus twice the number of Small pizzas (2S) should be less than or equal to 12. This equation aligns with the given information that we have enough dough for either 6 Large pizzas or 12 Small pizzas.

Option D, L + 2S ≤ 12, correctly captures the constraint described and represents the relationship between the number of Large and Small pizzas that can be made given the available dough.

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Answer:

9(x-1)(x-1) or 9(x-1)²

Step-by-step explanation:

9x² - 18x + 9

factor out a 9

9(x² - 2x + 1)

use middle term factorization to factor x² - 2x + 1

9(x-1)(x-1) or 9(x-1)²

Middle term factorization explained:

For x² - 2x + 1, you want to find 2 numbers that multiply to +1 and add to -2. You then split x² to x and x and add the 2 numbers individually to x.

It should look something like (x+1st number)(x+2nd number)

the two numbers that multiply to get to 1 and add to get to -2 are -1 and -1

( -1 × -1 = 1 and -1 + -1 = 2 )

so we then add the number to the split x² to get (x-1)(x-1) which is the same as (x-1)², the 9 is then added to the factored form to get 9(x-1)(x-1) or 9(x-1)²

we can draw in finite number circle from one point. so there are n number of possibility to draw circle from on given single point.

Every point in the plane that is a certain distance away from a certain point forms a circle (center). It is, thus, a curve formed by points moving in the plane at a fixed distance from a point. A circle is a closed two-dimensional object where every pair of points in the plane are equally spaced out from the "center." A line that goes through the circle creates a specular symmetry line. At every angle, it is also rotationally symmetric about the center.

Area of circle =  

\(\pi r^2\\r = 10\\A = 3.14 X 20 X 20\\A = 628unit sq\\\)

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Ans- the solutions to the equation 2x² - 3x + 1 = 0 are x = 1 and x = 1/2

solution;

The factors of 2 are 1 and 2.
The factors of 1 are 1 and 1.

So, the two numbers we are looking for are -1 and -1, as -1 * -1 = 1 and -1 + -1 = -2.

To factor the equation, we can rewrite it as:
2x² - 2x - x + 1 = 0

Next, we group the terms and factor by grouping:
(2x² - 2x) + (-x + 1) = 0

Taking out the common factor from the first group:
2x(x - 1) - 1(x - 1) = 0

Now, we have a common factor of (x - 1), so we can factor it out:
(x - 1)(2x - 1) = 0

To find the values of x, we set each factor equal to zero:
x - 1 = 0 or 2x - 1 = 0

Solving these equations, we get:
x = 1 or x = 1/2

To check our answers, we substitute these values back into the original equation:
For x = 1:
2(1)² - 3(1) + 1 = 0
2 - 3 + 1 = 0
0 = 0 (True)

For x = 1/2:
2(1/2)² - 3(1/2) + 1 = 0
1/2 - 3/2 + 1 = 0
0 = 0 (True).

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Answer:

There are 2 solutions to square root x = 9

They are 3, and -3

Step-by-step explanation:

The square root of x=9 has 2 solutions,

The square root means, for a given number, (in our case 9) what number times itself equals the given number,

Or, squaring (i.e multiplying with itself) what number would give the given number,

so, we have to find the solutions to \(\sqrt{9}\)

since we know that,

\((3)(3) = 9\\and,\\(-3)(-3) = 9\)

hence if we square either 3 or -3, we get 9

Hence the solutions are 3, and -3

Answer:

a. 1.26

b. 0.1038

Step-by-step explanation:

The p-value is 1.0000 (rounded to four decimal places). This means that we fail to reject the null hypothesis, which in this case would be that the population mean is equal to the sample mean of 26.2.

To find the test statistic, we need to use the formula:

test statistic = (sample mean - population mean) / (standard deviation / square root of sample size)

Since the population standard deviation is given as 6, we can plug in the values:

test statistic = (26.2 - population mean) / (6 / √40)

To find the population mean, we can use the fact that the sample mean is an unbiased estimator of the population mean, so:

population mean = sample mean = 26.2

Plugging in the values, we get:

test statistic = (26.2 - 26.2) / (6 / √40) = 0

The test statistic is 0.

To find the p-value, we need to use a t-distribution table or calculator. Since we have a sample size of 40, we can use the t-distribution with 39 degrees of freedom.

Using a calculator or table, we can find that the area to the right of 0 (since the test statistic is 0) is 0.5. Since this is a two-tailed test, we need to double this value to get the p-value:

p-value = 2 * 0.5 = 1.0000
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Answer: 120 degrees

Step-by-step explanation:

A hexagon has six sides, and we can use the formula degrees = (# of sides – 2) * 180. Then degrees = (6 – 2) * 180 = 720 degrees. Each angle is 720/6 = 120 degrees.

Answer:

Option (B)

Step-by-step explanation:

1). Given function is,

  \(f(x)=\frac{1}{x-1}+3\)

  It the given function 'f' is transformed by a translation of 2 units to the right, the new function will be,

h(x) = f(x - 2)

h(x) = \(\frac{1}{(x-2)-1}+3\)

      = \(\frac{1}{x-3}+3\)

Further the new function is translated by 6 units down,

g(x) = h(x) - 6

g(x) = \(\frac{1}{x-3}+3-6\)

      = \(\frac{1}{x-3}-3\)

Since, transformed function 'g' passes through a point (x, -2),

g(x) = \(\frac{1}{x-3}-3\)

-2 = \(\frac{1}{x-3}-3\)  

3 - 2 = \(\frac{1}{x-3}\)

x - 3 = 1

x = 4

Therefore, Option (B) will be the answer.

The sample mean is an unbiased estimator for the population mean because, on average, it is equal to the population mean.

To show that the sample mean is an unbiased estimator for the population mean (μ), we need to demonstrate that, on average, the sample mean is equal to the population mean.

The sample mean (\(\bar{x}\)) is calculated by taking the sum of all the observed values (X1, X2, ..., Xn) and dividing it by the sample size (n):

\(\bar{x}\) = (X1 + X2 + ... + Xn) / n

Now, let's take the expected value of the sample mean:

E(\(\bar{x}\)) = E((X1 + X2 + ... + Xn) / n)

Since the expected value is a linear operator, we can split it up:

E(\(\bar{x}\)) = (E(X1) + E(X2) + ... + E(Xn)) / n

Assuming the random sample X1, X2, ..., Xn is taken from a distribution with a mean μ, we can substitute E(Xi) with μ:

E(\(\bar{x}\)) = (μ + μ + ... + μ) / n

Since there are n terms in the numerator, which are all equal to μ:

E(\(\bar{x}\)) = (n * μ) / n

The n in the numerator cancels out with the n in the denominator:

E(\(\bar{x}\)) = μ

Hence, we have shown that the expected value of the sample mean is equal to the population mean:

E(\(\bar{x}\)) = μ

Since the expected value of the sample mean is μ, we conclude that the sample mean is an unbiased estimator for the population mean.

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Answer:

5.5 min

Step-by-step explanation:

At time t=0 you have 72 grams

at time t = 22 min you have 4.5 grams.

Now

4.5/72 = (1/2)^(t/half-life)

and t=22, so

4.5/72 = (1/2)^(22/half-life)

taking log of both sides:

log(4.5/72)=(22/half-life)log(1/2)

solving for half-life gives half-life = 11/2 = 5.5min

Answer: 25 , 10 years

Step-by-step explanation:

Suppose the present age of Artie and Carrie is x and y

According to the question, 5 years ago

\(\Rightarrow x-5=4(y-5)\\\Rightarrow x-4y=-15\quad \ldots(i)\\\)

In five year time

\(\Rightarrow x+5=2(y+5)\\\Rightarrow x-2y=5\quad \ldots(ii)\)

Solving (i) and (ii) we get

\(x=25,y=10\)

The current age of Artie and Carrie is 25 and 10 years

The power series representation for \(\( \frac{x}{1-8x^9} \)\)  centered  at \(\( 0 \)\) is:

\(\[ \sum_{n=0}^{\infty} 8^n x^{9n+1} \]\)

To find the power series representation for \(\( \frac{x}{1-8x^9} \)\) centered at \(\( 0 \)\), we can start by expressing \(\( \frac{x}{1-8x^9} \)\) in terms of a known power series.

Given \(\( \frac{1}{1-x} = \sum_{n=0}^{\infty} x^n \) with convergence in \( (-1,1) \), we can rewrite \( \frac{x}{1-8x^9} \) as:\)

\(\[ \frac{x}{1-8x^9} = x \cdot \frac{1}{1-8x^9} \]\)

Now we substitute \(\( 8x^9 \)\) into the power series expansion of \(\( \frac{1}{1-x} \):\)

\(\[ \frac{x}{1-8x^9} = x \sum_{n=0}^{\infty} (8x^9)^n \]\)

Simplifying, we have:

\(\[ \frac{x}{1-8x^9} = \sum_{n=0}^{\infty} 8^n x^{9n+1} \]\)

Therefore, the power series representation for \(\( \frac{x}{1-8x^9} \) centered at \( 0 \) is:\)

\(\[ \sum_{n=0}^{\infty} 8^n x^{9n+1} \]\)

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The coefficient of correlation (r) being -0.30 indicates a weak negative linear relationship between the variables x and y. The value of r ranges from -1 to 1, where -1 indicates a perfect negative linear relationship, 0 indicates no linear relationship, and 1 indicates a perfect positive linear relationship. Therefore, an r value of -0.30 suggests that there is a weak negative relationship between x and y, but the relationship is not strong enough to be considered a significant predictor of y based on x.

The negative value of r indicates that as the value of x increases, the value of y tends to decrease, although the relationship is weak. It is important to note that while a weak correlation does not necessarily imply causation, it does suggest that there may be some underlying relationship between the variables that should be further explored. Therefore, it is recommended to use other statistical measures in conjunction with the coefficient of correlation to determine the strength and significance of the relationship between x and y.

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Answer:

Solution given:

1.KU =UE Def.of midpoint

2.LU=UT Def.of midpoint

3.<KUL=<TUE Vertically opposite angle

4.∆KLU=∆ETU. S.S.A. axiom

Step-by-step explanation:

It will help you !!!!!!!!!!!///