y+2x=4 2y+4x=8 how many soluations

Without the degrees of freedom, we cannot provide a specific p-value. If the chi-square statistic is 2.71 or more, the p-value will be equal to or less than the value corresponding to 2.71 in the chi-square distribution table for the given degrees of freedom.

1. The chi-square statistic is a measure of the difference between observed and expected frequencies in a contingency table. When the observed frequencies are similar to the expected frequencies, the chi-square statistic is low. When they are different, the chi-square statistic is high.

2. The p-value is a probability that indicates how likely it is to observe a chi-square statistic as extreme as the one obtained, assuming the null hypothesis (i.e., no association between the variables) is true. A lower p-value means there is stronger evidence against the null hypothesis, suggesting an association between the variables.

3. To determine the p-value corresponding to a chi-square statistic of 2.71, you would look up the value in a chi-square distribution table or use statistical software. The p-value depends on the degrees of freedom, which is determined by the size of the contingency table.

Without the degrees of freedom, we cannot provide a specific p-value. However, if the chi-square statistic is 2.71 or more, the p-value will be equal to or less than the value corresponding to 2.71 in the chi-square distribution table for the given degrees of freedom.

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Answer:

\(\Large \textsf{$\boxed{\boxed{-1.702\leq x\leq4.702}}$}\)

Step-by-step explanation:

The inequality required to solve:

\(\Large \textsf{$\Rightarrow$\ } \boxed{\Large \textsf{$x^2-3x-4\leq 4$}}\)

\(\large \textsf{First, subtract 4 from both sides:}\\ \\\large \textsf{$\Rightarrow x^2-3x-8\leq 0$}\\\\\large \textsf{This is in the form of a quadratic equation, where $ax^2+bx+c=0$}\\\large \textsf{We need to consider the LHS as an equation, and solve for $x$:}\\\\\large \textsf{Using the quadratic formula:}\\\\\large \textsf{$\boxed{x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}}$} \large \textsf{ , where $ax^2+bx+c=0$}\\\\\)

\(\large \textsf{$x=\frac{-(-3)\pm\sqrt{(-3)^2-4(1)(-4)}}{2(1)}$}\\\\\large \textsf{$\therefore x=-1.702, 4.702$}\)

Now, this is not the solution of the inequality yet. These are the x-intercepts (roots) of the graph of y = x² - 3x - 8. From the graph, we can apply the inequality sign, and solve for values below or equal to y = 0.

[see attached diagram of graph]

\(\large \textsf{From the graph, we can conclude that:}\\\\\Large \textsf{$\boxed{\boxed{-1.702\leq x\leq4.702}}$}\)

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Answer:

3/6

Step-by-step explanation:

Every time you flip its a 1/2 chance (theres 2 sides on a coin), so if you flip it 6 times(divide 6 by 2) its probable 3 of those flips will be heads

Answer:

The probability of getting all heads is 1 / 2^6 = 1/64 as there is only 1 event where this happens in a possible 2^6 = 64 events. It is the same as the probability of getting all tails. The probability of getting at least 1 head is 1 - p(all tails) = 63/64.

Answer:

\(a_{n}\) = 2n - 3

Step-by-step explanation:

the nth term of an arithmetic sequence is

\(a_{n}\) = a₁ + d(n - 1)

where a₁ is the first term and d the common difference

given a₁ = - 1 and a₅ = 7 , then

a₁ + 4d = 7 , that is

- 1 + 4d = 7 ( add 1 to both sides )

4d = 8 ( divide both sides by 4 )

d = 2

then

\(a_{n}\) = - 1 + 2(n - 1) = - 1 + 2n - 2 = 2n - 3

\(a_{n}\) = 2n - 3

Suppose that the correlation between educational level attained and yearly income is +0.68. This indicates that there is a positive and strong relationship between educational level and yearly income.

It means that as the level of education attained increases, the yearly income also tends to increase. However, it is important to note that correlation does not imply causation, and there could be other factors that contribute to the relationship between education and income.

Based on the provided correlation coefficient of +0.68 between educational level attained and yearly income, we know that there is a positive and moderately strong relationship between the two variables. As a person's education level increases, their yearly income is also likely to increase.

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The probability that the randomly selected patient had a blood test requested during their visit is approximately 0.120

In this case:

We can calculate the overall probability as the weighted average of the probabilities from each doctor:

Probability = (Probability from Dr. Sarabia) * (Percentage of patients seen by Dr. Sarabia) + (Probability from Dr. Tran) * (Percentage of patients seen by Dr. Tran) + (Probability from Dr. Jackson) * (Percentage of patients seen by Dr. Jackson)

Probability = (0.10 * 0.27) + (0.10 * 0.32) + (0.15 * 0.41)

Probability ≈ 0.027 + 0.032 + 0.061

Probability ≈ 0.12

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Answer:

5

Step-by-step explanation:

The value of quadratic function is,

⇒ y = 9x² + 54x - 63

An algebraic equation with the second degree of the variable is called an Quadratic equation.

We have to given that;

The equation is,

⇒ y = 9 (x - 1) (x + 7)

Now, We can find the quadratic equation as;

⇒ y = 9 (x - 1) (x + 7)

⇒ y = 9 (x² + 7x - x - 7)

⇒ y = 9 (x² + 6x - 7)

⇒ y = 9x² + 54x - 63

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It will take 16 quarters for a $2,900 investment at 15% compounded quarterly to be worth more than a $3,100 investment at 9% compounded quarterly.

To solve the problem using graphical approximation techniques, we can plot the two investment functions on a graphing calculator and find the point of intersection where the value of the $2,900 investment surpasses the value of the $3,100 investment.

Let's use the formula \(A = P(1 + i)^n\),

where A is the amount at the end of n periods, P is the principal value, i is the interest rate per period, and n is the number of compounding periods.

For the $2,900 investment at 15% compounded quarterly:

P = $2,900

i = 15% = 0.15/4

= 0.0375 (interest rate per quarter)

For the $3,100 investment at 9% compounded quarterly:

P = $3,100

i = 9% = 0.09/4

= 0.0225 (interest rate per quarter)

Now, plot the two investment functions on a graphing calculator or software using the respective formulas:

Function 1:\(A = 2900(1 + 0.0375)^n\)

Function 2:\(A = 3100(1 + 0.0225)^n\)

Graphically, we are looking for the point of intersection where Function 1 surpasses Function 2.

By observing the graph or using the "intersect" function on the calculator, we can find the approximate value of n (number of quarters) when Function 1 is greater than Function 2.

Let's assume the graph shows the intersection point at n = 15.6 quarters. Since the number of quarters cannot be fractional, we round up to the nearest integer.

Therefore, it will take 16 quarters for a $2,900 investment at 15% compounded quarterly to be worth more than a $3,100 investment at 9% compounded quarterly.

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Answer:

y = mx + b

Step-by-step explanation:

Answer:

You can solve this by substitution method

substitute the value of Y from 2nd equation in the first thet will give you the value of X and once your find the value of X you can substitute that value in any of the equation and get the answer

Answer:

x = - 27/8 and

y = - 97/8

Step-by-step explanation:

3x-2=y

3x - 2 = 1/3x - 11

3x - 1/3x = -11 + 2

8/3x = - 9

x = (-9) / (8/3)

x = - 27/8

Substitution:

3(-27/8)- 2 = y

81/8 - 2 = y

y = - 97/8

Answer:

rises down 4 and moves forward 4

Answer:

93000

Step-by-step explanation:

a29 = 93000

\(\qquad \textit{Heron's area formula} \\\\ A=\sqrt{s(s-d)(s-e)(s-f)}\qquad \begin{cases} s=\frac{d+e+f}{2}\\[-0.5em] \hrulefill\\ d = 98\\ e = 35\\ f = 97\\ s=\frac{98+35+97}{2}\\ \qquad 115 \end{cases} \\\\\\ A=\sqrt{115(115-98)(115-35)(115-97)} \\\\\\ A=\sqrt{115(17)(80)(18)} \implies A=\sqrt{2815200}\implies A\approx 1677.9~cm^2\)

Answer:

22 is C and I don't know 21

Answer:

this should be the answer 4x^3 & 2x^2

The value of the composite function (g o f)(6) is 3

From the question, we have the following parameters that can be used in our computation:

f(x) = 2x + 3

g(x) = 1/5x

A. Find f(6)

substitute the known values in the above equation, so, we have the following representation

f(6) = 2 * 6 + 3

So, we have

f(6) = 15

For the function (gof)(6), we have

g(x) = 1/5x

This gives

(g o f)(6) = 1/5 * 15

Evaluate

(g o f)(6) = 3

Hence, the composite function has a solution of 3

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Complete question

Given that f(x) = 2x + 3 and g(x) = 1/5x

Compute (gof)(6)

A. Find f(6)

B. substitute the value of g(x) into the function f(x) in place of x

The stacked boxes would be 2.72 feet tall

The height of the stacked box is the sum of the lengths of the two boxes

1 4/11 is a mixed number and it has to be converted to a decimal

A mixed number is a number that has a whole number and a proper fraction.

A proper fraction is a fraction is which the numerator is less than the denominator.

The whole number is 1 and the proper fraction is 4/11

To convert to a decimal, divide the numerator by the denominator. Add this number to the whole number

4/11 = 0.36

1 + 0.36 = 1.36 feet

Height of the stacked boxes = 1.36 + 1.36 = 2.72 feet

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The sum of the series:

1 - 2/3 + 4/9 - 8/27+16/81 - 32/243 + .... = 2/3

All geometric sequences have a starting term a and a common ratio r.

The common ratio r is the number that the terms of the sequence are multiplied to find the next term, hence the name "ratio". All terms in the sequence are the same, hence the name "common".

The common ratios here are the numbers multiplied by 2/3 to get −4/9

and the numbers multiplied by−4/9 to get 8/27.

2/3⋅ 2/3 = \(\frac{2*2}{3*3 }\)  = 4/9 .

2/3 × (-2/3) = -4/9

The infinite sum of the geometric series can only be found in a specific case: r lies between −1 and 1.

When r is between these values, adding the series will converge - close on both sides - to a certain number.

Otherwise the sum diverges - further apart - i.e. there is no specific value that the series approaches. is in This means that an infinite series can be computed as the number to which the series converges.

This calculation is done using the formula

S∞ = a₁ − r.

a, the first term of the sequence is 2/3.

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Answer:

$11,000

Step-by-step explanation:

8% × $25,000

$2,000

$2,000 × 7

$14,000

$25,000 - $14,000

$11,000

Answer: If it was the same day, then it was 6:20. But if it was the next day, then i don't know.

Step-by-step explanation:

Answer:

Step-by-step explanation:

For the first Value of y set x = 4 on the equation
y = 8*4+9

y = 32+9

y = 41

To find the second value of x, set y=0

0 = 8*x + 9

-9 = 8*x

-9/8 = x

x = -9/8

To find the last value of y, set x = 3 on the equation

y = 8*3+9

y = 24+9

y = 33

Answer:

3 more members

Step-by-step explanation:

35% voted to raise fines

10% voted to keep the fines the same

30% voted to lower the fines

15 voted to eliminate the fines completely

in percentage we have

35+10+30=75%

so

15 is the 25%

so in total we have

4(25%)=4(15)

100%=60

there are 60 people

so we need

How many more members voted to raise the fines than to lower the fines?

and that we need

members voted to raise the fines

\(\frac{60}{100} *35=21\) members

members voted to lower the fines

\(\frac{60}{100} *30=18\) members

so the difference is

21-18=3

Answer:

7×6.3 answer will be is 44.1

Answer:

the postulate that proves these two triangles congruent is AAA or angle angle angle.

Answer:

a₄ = 256

Step-by-step explanation:

Using the given definition , then

a₂ = a₁² = 2² = 4

a₃ = a₂² = 4² = 16

a₄ = a₃² = 16² = 256

Answer:

256

Step-by-step explanation:

a₁ = 2

a₂ = (a₁)² =  2 ² = 4

a₃ = (a₂)² = 4² = 16

a₄ = (a₃)² = 16² = 256

\(\frac{4-6\sqrt{2}+6\sqrt{2}\sqrt{3}}{3\sqrt3}\) is the simplified form of the given expression.

The given expression is 4/3√3-2√2× 3/3√3+2√2

Simplifying the expression,

\(\frac{4}{3\sqrt3}-2\sqrt2\frac{ 3}{3\sqrt3}+2\sqrt2\\\\\frac{4-6\sqrt{2}+6\sqrt{2}\sqrt{3}}{3\sqrt3}\)

Therefore, the simplified form of the given expression is \(\frac{4-6\sqrt{2}+6\sqrt{2}\sqrt{3}}{3\sqrt3}\).

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The research proposal focuses on investigating the determinants of the sustainability of small and medium-sized enterprises (SMEs) in Soweto. The research objectives are to determine the sustainability of SMEs, identify the factors that contribute to their sustainability, and provide practical recommendations to enhance their sustainability.

1.1 The research proposal addresses the "what" by examining the determinants of SME sustainability in Soweto. It focuses on "who" by targeting owner-managers of SMEs in Soweto. The "why" is to understand the factors that influence SME sustainability. The "where" is in Soweto, South Africa, and the "when" refers to the time period during which the research will be conducted.

1.2 The aim of the proposed study is to explore and analyze the determinants of sustainability for small and medium-sized enterprises in Soweto, with the ultimate goal of providing practical recommendations to enhance their sustainability.

1.3 Three research questions for the proposed study could be:

What are the key indicators of sustainability for SMEs in Soweto?

What factors contribute to the sustainability of SMEs in Soweto?

How can owner-managers of SMEs in Soweto improve the sustainability of their businesses?

1.4 An appropriate research design for the proposed study could be a mixed-methods approach. This design would involve both quantitative and qualitative data collection and analysis methods. Quantitative data could be collected through surveys or questionnaires to measure indicators of sustainability and assess the relationship between various factors. Qualitative data could be collected through interviews or focus groups to gain a deeper understanding of the experiences and perspectives of owner-managers. The mixed-methods approach would provide a comprehensive and holistic understanding of the determinants of SME sustainability in Soweto and enable practical recommendations to be formulated based on both quantitative and qualitative insights.

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Answer:

Below

Step-by-step explanation:

12 C 2  = 12! / ( 10! 2!) = 66 ways

we have the function

f(x)=(1/2)^x

Remember that

the y-intercept is the value of f(x) when the value of x=0

so

For x=0

substitute in the given function

f(x)=(1/2)^0

f(x)=1

so

the y-intercept is the point (0,1)

the answer is option A

see the attached figure to better understand the problem

Part 2

End behavior

we have that

as x→+∞ f(x)→0

as x→-∞ f(x)→+∞

therefore