Triangle $ABC$ has vertices $A(0, 8)$, $B(2, 0)$, $C(8, 0)$. A line through $B$ cuts the area of $\triangle ABC$ in half; find the sum of the slope and $y$-intercept of this line.

In random assignment design the subjects are not randomly assigned to an experimental group and control group.

The complete question:

"A researcher wishes to examine the effects of a new medical treatment on patients with Alzheimer's disease. The researcher plans to examine the effects on a group of randomly selected subjects. What is wrong with this design?

Select all that apply.

A. Subjects are not randomly assigned to an experimental group and

control group.

B. A control group is not used.

C. Only one researcher is used.

D. An entire population is not used."

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The equation to determine the number of hours worked by the plumber

is 35x = 290 and he worked for 4.83 hours.

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, Jerald is having drain issues at his home and decides to call a plumber.

The plumber charges $35 to come to his house and $60 for every hour they work.

Assuming no. of hours to be x and total charge to be c(x).

∴ c(x) = 35x + 60.

Now, The plumber charges Jerald a total of $305.

∴ 350 = 35x + 60.

35x = 290.

x = 290/60.

x = 29/6.

x = 4.83 hours

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Answer:

The period of this graph is 7.

Answer:

the chef could make a casserole, sou, and veggie burger

Step-by-step explanation:

Answer:

Step-by-step explanation:

2a^2b + 6ab^2

take common

2 can be taken common because there is 2in first term and there is 6 in second term and 2 can exactly divide 6 .there is a*a in first term and only a in second term so u can take a as common.There is only b in first term and b*b in second term so take u can take b as common.

total we can take

2ab as common.So,

2ab(a+3b)

therefore 2ab(a+3b) is the required answer.

The required factorization is  2ab(a+3b).

Factorization in mathematics is the process of dividing a large number into smaller ones that, when multiplied together, give you the original number. Factorization is the process of dividing a number into its components or divisors.

Expanding brackets in reverse is a procedure known as factorizing.

Fully factorizing an equation entails putting it in brackets by eliminating the components with the highest common denominator.

Finding the highest common factor between all the terms in the phrase is the easiest technique to factorize.

We have, 2a²b + 6ab²

Here,

we have the highest common factor 2ab,

So, 2ab (a + 3b)

Therefore, 2ab(a+3b) is the required factorization.

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The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85

To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".

According to the sample data

Number of adults who answered "Newspapers": 64

Number of adults who answered "Radio": 21

Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition

64 + 21 = 85

Rounding this answer to the nearest whole number, we get

85 ≈ 85

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The given question is incomplete, the complete question is:

There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.

Answer:

9 4

- + -

3 2

Step-by-step explanation:

Replace the first x with 9 and the second with 4

Answer:

A

This other person is correct about the answer the dependent variable is the variable that is being measured or tested in an experiment and response variable is a another way of saying that.

Answer:response variable

Step-by-step explanation:

plato

False. The margin of error only accounts for sampling variability (the fact that my sample will be different that many other people's and therefore provide different statistics.

Statistics is a technique for interpreting, analyzing, and summarizing data in mathematics. In light of these characteristics, the various statistical types are divided into: Statistics that are descriptive and inferential. We analyze and understand data based on how it is presented, such as through graphs, bar graphs, or tables.

Inferential statistics, which draws conclusions from information using statistical tests like the student's t-test, is one of the two main statistical methods used in data analysis. Descriptive statistics presents data using indices like mean and median.

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The unique solution for the system x1​−6x3​2x1​+2x2​+3x3​x2​+4x3​​=22=11=−6 is given system of equations is  x1 = -3, x2 = 7, and x3 = 6. Thus, Option A is the answer.

We can write the system of linear equations as:| 1 - 6 0 |   | x1 |   | 2 || 2  2  3 | x | x2 | = |11| | 0  1  4 |   | x3 |   |-6 |

Let A = | 1 - 6 0 || 2  2  3 || 0  1  4 | and,

B = | 2 ||11| |-6 |.

Then, the system of equations can be written as AX = B.

Now, we need to find the value of X.

As AX = B,

X = A^(-1)B.

Thus, we can find the value of X by multiplying the inverse of A and B.

Let's find the inverse of A:| 1 - 6 0 |   | 2  0  3 |   |-18 6  2 || 2  2  3 | - | 0  1  0 | = | -3 1 -1 || 0  1  4 |   | 0 -4  2 |   | 2 -1  1 |

Thus, A^(-1) = | -3  1 -1 || 2 -1  1 || 2  0  3 |

We can multiply A^(-1) and B to get the value of X:

| -3  1 -1 |   | 2 |   | -3 |  | 2 -1  1 |   |11|   |  7 |X = |  2 -1  1 | * |-6| = |-3 ||  2  0  3 |   |-6|   |  6 |

Thus, the solution of the given system of equations is x1 = -3, x2 = 7, and x3 = 6.

Therefore, the unique solution of the system is A.

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The missing sides of the special right triangles are listed below:

Case 1: y = √2 · 13, x = 13

Case 2: x = y = 15√2

Case 3: x = 6, y = 3√3

Case 4: x = 17√3, y = 17

Case 5: x = y = 10

Case 6: x = 50, y = 25

Case 7: x = y = 4√7

Case 8: x = 16√3, y = 8√3

Case 9: x = 11√3, y = 33

Case 10: x = 3√2, y = 2√6

Case 11: x = √10, y = 2√5

Case 12: x = 4√7, y = 8√21

Herein we find twelve cases of special right triangles whose missing sides must be determined by using the following rules:

45 - 90 - 45 Right triangle

r = √2 · x = √2 · y

30 - 60 - 90 Right triangle

x = (1 / 2) · r

y = (√3 / 2) · r = √3 · x

Where:

Case 1

y = √2 · 13

x = 13

Case 2

x = y = 15√2

Case 3

x = 3 / (1 / 2)

x = 6

y = 3√3

Case 4

x = 34 · (√3 / 2)

x = 17√3

y = 34 · (1 / 2)

y = 17

Case 5

x = y = 10

Case 6

x = 25√3 / (√3 / 2)

x = 50

y = 25√3 / √3

y = 25

Case 7

x = y = 2√14 · √2 = 2√28 = 4√7

Case 8

x = 24 / (√3 / 2)

x = 48 / √3

x = 16√3

y = 24 / √3

y = 8√3

Case 9

x = 22√3 · (1 / 2)

x = 11√3

y = 22√3 · (√3 / 2)

y = 33

Case 10

x = √18

x = 3√2

y = √6 / (1 / 2)

y = 2√6

Case 11

x = √10

y = √20

y = 2√5

Case 12

x = 4√21 / √3

x = 4√7

y = 4√21 / (1 / 2)

y = 8√21

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Histograms are a waste of time and provide no meaningful information about process variation are true statement

A machine should be calibrated closer to the lower spec limit than the upper spec limit if the cost of fixing output that is too high is greater than the cost of fixing output that is too low.

If the cost of fixing output that is too high is greater than the cost of fixing output that is too low then it make sense to calibrate the machine closer to the lower spec limit.

This way if the machine produces less output than is required, it can be fixed at a lower cost than if the machine had been set to the upper spec and produces output that is too high.

Histograms are a waste of time and provide no meaningful information about process variation

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the exact formula for X(n) is given by the sum of i from 1 to 4n + 1. The closed-form formula for X(n) is (4n + 1)(4n + 2)/2, expressed as a polynomial function. The asymptotic value of X(n) is approximately 4n^2, representing the growth rate as n approaches infinity.

(i) The exact formula for X(n) can be determined by analyzing the procedure PrintXs(n) and counting the number of times the letter "X" is printed. In this case, the outer loop runs for 4n + 1 iterations, and for each iteration, the inner loop runs i times. Thus, the total number of "X" letters printed is given by the sum of i from 1 to 4n + 1.

(ii) To express X(n) as a closed-form polynomial function, we can simplify the sum mentioned above. By using the formula for the sum of an arithmetic series, the closed-form formula for X(n) can be written as X(n) = (4n + 1)(4n + 2)/2.

(iii) The asymptotic value of X(n) can be expressed using the e-notation, which represents an estimate of the growth rate. In this case, as n approaches infinity, the dominant term in the expression (4n + 1)(4n + 2)/2 is 4n^2. Therefore, we can express the asymptotic value of X(n) as X(n) ~ 4n^2.

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Answer:

(- 1, - 1 )

Step-by-step explanation:

2x + 5y = - 7 → (1)

7x + y = - 8 → (2)

multiplying (2) by - 5 and adding to (1) will eliminate y

- 35x - 5y = 40 → (3)

add (1) and (3) term by term to eliminate y

(- 35x + 2y) + (5y - 5y) = - 7 + 40

- 33x + 0 = 33

- 33x = 33 ( divide both sides by - 33 )

x = - 1

substitute x = - 1 into either of the 2 equations and solve for y

substituting into (1)

2(- 1) + 5y = - 7

- 2 + 5y = - 7 ( add 2 to both sides )

5y = - 5 ( divide both sides by 5 )

y = - 1

solution is (- 1, - 1 )

Answer:

Step-by-step explanation:

Q = F(K,L) = 3K+2L.

When using an apothem to find the area of an equilateral triangle, the special right triangle that would be used is the 30-60-90 triangle.

This particular right triangle is formed by cutting an equilateral triangle in half, resulting in one right angle and angles of 30 degrees and 60 degrees.

The 30-60-90 triangle is characterized by its unique side ratios. The shorter leg opposite the 30-degree angle is half the length of the hypotenuse, while the longer leg opposite the 60-degree angle is (√3)/2 times the length of the hypotenuse. These ratios hold true for any 30-60-90 triangle.

To find the area of an equilateral triangle using an apothem, we can divide the equilateral triangle into two 30-60-90 triangles. The apothem, which is the perpendicular distance from the center of the triangle to one of its sides, forms the longer leg of the 30-60-90 triangle. The shorter leg corresponds to half the length of one side of the equilateral triangle.

By knowing the length of the apothem and applying the ratios of the 30-60-90 triangle, we can determine the lengths of the other sides of the triangle. With these dimensions, we can then calculate the area of the equilateral triangle using the formula:

A = (base × height) / 2,

where the base is one side of the equilateral triangle and the height is the length of the apothem.

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Answer:

16 feet

Step-by-step explanation:

We are Given that

A ladder leaning against a object makes the ladder slanted so that means 34 is our hypotense.

The building height And distance of the bottom of ladder and building is our legs so our formula we use is

\( {30}^{2} + {x}^{2} = {34}^{2} \)

\(900 + {x}^{2} = 1156\)

\( {x}^{2} = 256\)

\(x = 16\)

Making predictions about a population from analyzing a sample or through observations is called inferential statistics.

Inferential statistics involves using sample data to draw conclusions or make inferences about a larger population. By analyzing the sample data, statisticians can make predictions, estimate population parameters, test hypotheses, and assess the reliability of the results.

Inferential statistics plays a crucial role in scientific research, surveys, market research, quality control, and many other fields

where generalizations about a population need to be made based on limited information from a sample.

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Matrix multiplication involves multiplying the corresponding elements of the rows in one matrix with the corresponding elements of the columns in another matrix and summing them up. In the given case, the product of the matrices [2 6 1 0] and [-1 5 3 1] results in 31.

Matrix multiplication is an important operation in linear algebra and is used in various applications, including solving systems of linear equations, transformations, and finding areas and volumes.

To find the product of two matrices, we need to perform matrix multiplication. The given matrices are:

Matrix A: [2 6 1 0]

Matrix B: [-1 5 3 1]

To perform matrix multiplication, we need to multiply the corresponding elements of the rows in Matrix A with the corresponding elements of the columns in Matrix B and sum them up.

The first element of the resulting matrix will be the sum of the products of the first row of Matrix A with the first column of Matrix B:

(2 * -1) + (6 * 5) + (1 * 3) + (0 * 1) = -2 + 30 + 3 + 0 = 31

Hence, the product of the given matrices [2 6 1 0] and [-1 5 3 1] is 31.

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Answer:

==>(x+3) = 16

==> x + 3 = 16

make x the subject of formula

=> x = 16 - 3

subtract 3 from 16

=> x = 13

Two steps that will complete the list correctly are:

4. The original measurement should be multiplied by the conversion factors.

5. Verify that it makes sense.

A conversion factor can be used to switch from one set of units to another by multiplying or dividing a number. When a conversion is necessary, the appropriate conversion factor to an equivalent value must be applied.

Let's use an example of converting from inches to centimeters to address this query.

10 inches should be converted to cm.

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Answer:

y = 8·√3

Step-by-step explanation:

From the drawing of the right triangle, we have;

The length of the opposite leg to the given 60° (reference) angle = 12

The length of the adjacent leg to given 60° (reference) angle = x

The length of the hypotenuse side = y

By trigonometric ratios, we have;

\(sin(Reference \, Angle) = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length}\)

Therefore, we have;

\(sin(60^\circ) = \dfrac{12}{y}\)

From the value of sin(60°), we have;

\(sin(60^\circ) = \dfrac{\sqrt{3} }{2}\)

\(\therefore y= \dfrac{12}{sin(60^\circ) } = \dfrac{12}{\dfrac{\sqrt{3} }{2} } = \dfrac{2 \times 12 \times \sqrt{3} }{{{3} } } = \dfrac{24 \times \sqrt{3} }{{{3} } } = 8 \cdot \sqrt{3}\)

y = 8·√3

\(\left(x= \dfrac{12}{tan(60^\circ) } = \dfrac{12}{{\sqrt{3} } } = 4\cdot \sqrt{3} \right)\)

Answer:

perpendicular lines

Step-by-step explanation:

these lines intersect and form a right angle. (90 degrees)

Yes, m∠ABC and m∠XYZ are congruent

No, lines FG and DE are not congruent

Yes, OR and OS are congruent

Yes, 2∠ and ∠4 are congruent.

Congruent angles are angles that have the same measure, in degrees and are often represented by the symbol "≅". While congruent line segments are two or more line segments that have the same length.

m∠XYZ = 180° - 140° {supplementary angles}

m∠XYZ = 40°

so;

m∠ABC and m∠XYZ are congruent

line FG = and line DE =

so;

FG and DE are not congruent

OR = 2in and OS = 2in

so;

OR and OS are congruent

∠2 and ∠4 are vertical angles and are equal so;

2∠ and ∠4 are congruent

Therefore, (m∠ABC and m∠XYZ), (2∠ and ∠4), and (OR and OS), are two pairs of angles and line segments respectively which are congruent, while the lines segments FG and DE are not congruent.

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Answer:

The bird moves faster

Step-by-step explanation:

Here, we want to get which of the two moves faster

This is a matter of speed

14,000 to km would be;

14,000/0.62 = 22,581 km

There is a rest of 8 hours per day

So 16 hours is used in moving

for 90 days, the total

time spent moving is 16(90) = 1,440 hours

So, the speed is generally

distance/time = 22.581/1,440 = 15.68215 km/h

For the person

100 minutes is same as 60 + 40 minutes

= 1 hour + 40/60

40/60 = 2/3 = 0.667

So the total

time is 1.667 hours

The speed is thus;

20/1.667 = 12 km/h

Comparing the two speeds, we can see that the bird moves faster

In this exercise we have to identify who has the highest speed, for this it will be necessary to use the definition of distance, in this way we have:

The bird moves faster

Then from the velocity we find that:

\(16(90) = 1,440 hours\\ 14,000/0.62 = 22,581 km\)

So, the speed is generally, can be caculated as:

\(distance/time = 22.581/1,440 = 15.68215 km/h\)

\(20/1.667 = 12 km/h \)

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In binary representation, each bit can be either 0 or 1. Using five binary bits, we can obtain 32 different numbers. Therefore, the correct answer is (B).

With five binary bits, we have five positions, and each position can have two possibilities (0 or 1). To calculate the total number of different numbers we can obtain, we need to raise 2 to the power of the number of bits. In this case, we have \(2^5,\) which equals 32. Therefore, we can obtain 32 different numbers using five binary bits. To understand this concept, we can think of each binary bit as a switch that can be either on (1) or off (0). With five switches, we have a total of 32 different combinations or numbers that can be represented. These numbers range from 0 (all switches off) to 31 (all switches on). Therefore, the correct answer is (B), which states that we can obtain 32 different numbers using five binary bits.

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From this proportion of days he does the activities, sometimes they will meet in one day.

He will do both in the same day when the day is a common factor of 3 and 4.

Since today he did both, the next time he will do so will be in the least common factor of 3 and 4.

To get the least common factor of these, we can identify the divisors of each and makes the divisions until both get to 1. If one of the divisiors is divisior for both, we don't repeat it.

So, from 3 and 4, we can start by the divisior of 2. 2 Is a divisior of 4, but not of 3, so we divide only the number for:

3, 4 | 2

3, 2 |

Now, we have 3 and 2, so we can divide for 2 again:

3, 4 | 2

3, 2 | 2

3, 1 |

Now, we have 3 and 1, so we can only divide by 3 now:

3, 4 | 2

3, 2 | 2

3, 1 | 3

1 , 1 |

So, in the end we have 2, 2 and 3, so the least common factor is 2*2*3 = 12.

Since the common factor of 3 and 4 is 12, Tyler will lift and jog on the same day 12 days after today.

Answer:

a=8cm

Step-by-step explanation:

Because the triangles are similar, you can set the sides to be proportional

1. 16/16=8/a

2. If you cross multiply that mean that a=8

Answer:

₹245 is the cost

Step-by-step explanation:

Given:

Cost of the fan = ₹1470

1/6th =  1470/1  × 1/6

(do not cross multiply and simplify)

=  ₹245

Answer:

Rs 1260

Step-by-step explanation:

let x be the cost price , then

x + \(\frac{1}{6}\) x = 1470 , that is

\(\frac{7}{6}\) x = 1470 ( multiply both sides by 6 to clear the fraction )

7x = 8820 ( divide both sides by 7 )

x = 1260

The cost price was Rs 1260

Answer:

Step-by-step explanation:

56.1,12.1,23.6