Solve the equation 3x – 9 = 5x + 9

The solution to the equation x³ = 8 is x = 2.

A statement that affirms the equivalence of two expressions joined by the equals symbol "=" is known as an equation.

To solve x³ = 8, we can use the concept of taking the cube root of both sides of the equation:

x³ = 8

Taking the cube root of both sides, we get:

∛(x³) = ∛8

Simplifying the left-hand side of the equation, we get:

x = ∛8

We can simplify the cube root of 8 to get the final solution:

x = 2

Therefore, the solution to the equation x³ = 8 is x = 2.

Learn more about equation on:

https://brainly.com/question/27893282

#SPJ4

Let's call the length of the rectangle "L" and the width "W". We know that the width is 10 cm shorter than the length, so we can write.

W = L - 10
We also know that the area of the rectangle is 200 cm 2, so we can write:
A = L x W
Substituting W = L - 10, we get:
A = L x (L - 10)
Expanding the brackets, we get:
A = L^2 - 10L
Now we can substitute in A = 200 and solve for L:
200 = L^2 - 10L
0 = L^2 - 10L - 200
We can use the quadratic formula to solve for L:
L = (-b ± sqrt(b^2 - 4ac)) / 2a
Where a = 1, b = -10, and c = -200. Plugging in these values, we get:
L = (10 ± sqrt(10^2 - 4(1)(-200))) / 2(1)
L = (10 ± sqrt(1100)) / 2
L = (10 ± 10sqrt(11)) / 2
L ≈ 19.9 or L ≈ -9.9
We can disregard the negative solution since we're dealing with lengths, so the length of the rectangle is approximately 19.9 cm.
Now we can use W = L - 10 to find the width:
W = 19.9 - 10
W ≈ 9.9 cm
Therefore, the length of the rectangle is approximately 19.9 cm and the width is approximately 9.9 cm.

To find the length and width of a rectangle whose width is 10 cm shorter than its length and whose area is 200 cm², follow these steps:
1. Define the variables: Let the length of the rectangle be L cm, and the width be W cm.
2. Use the given information: Since the width is 10 cm shorter than the length, we can write the equation W = L - 10.
3. Use the formula for the area of a rectangle: The area of a rectangle is given by the formula A = L × W.
4. Substitute the given area and the equation from step 2: In this problem, the area is 200 cm², so we have 200 = L × (L - 10).
5. Solve the equation for L: Expand the equation to get 200 = L² - 10L. Rearrange the equation to L² - 10L - 200 = 0.
6. Factor the quadratic equation or use the quadratic formula: (L - 20)(L + 10) = 0. This gives two possible values for L: L = 20 cm or L = -10 cm.
7. Discard the negative value: Since the length of a rectangle cannot be negative, we discard the value L = -10 cm. So, the length L is 20 cm.
8. Find the width using the equation from step 2: W = L - 10 = 20 - 10 = 10 cm.
Thus, the length and width of the rectangle are 20 cm and 10 cm, respectively.

Visit here to learn more about quadratic equation:

brainly.com/question/30098550

#SPJ11

Let L be the average number of customers in the system (i.e., the length of the line), λ be the arrival rate, W be the average time each customer spends in the system (i.e., the total time in the line plus the service time), and μ be the service rate. Then:

L = λW

We know that the arrival rate is λ = 7/hour and the service rate is μ = 16/hour. We also know that the average waiting time in the line is 19 minutes, or W = 19/60 hours. We can calculate W as follows:

W = Wq + 1/μ

where Wq is the average time a customer spends waiting in the line. Since we don't know the distribution of the arrival and service times, we cannot directly calculate Wq. However, we can use Little's Law again to relate the average number of customers in the waiting line to the average waiting time in the line:

Lq = λWq

where Lq is the average number of customers waiting in the line. We can then substitute this expression for Lq into the equation for W:

W = Lq/λ + 1/μ

W = (λWq)/λ + 1/μ

W = Wq + 1/μ

Solving for Wq, we get:

Wq = W - 1/μ

Wq = 19/60 - 1/16

Wq = 0.2667 hours

Now we can use Little's Law to calculate the length of the line:

L = λW

L = 7/hour x 0.2667 hours

L = 1.8667

Therefore, the length of the line is approximately 1.87 customers. Note that this is an average value, and the actual length of the line can fluctuate above or below this value due to random arrivals and service times.

Learn more about Little's Law here:- brainly.com/question/31366575

#SPJ11

1)  The test statistic is 1.5

2) The p-value is  0.1544.

What is a hypothesis?

A hypothesis is a theory put up to explain a phenomenon. A hypothesis must be testable according to the scientific method for it to be considered a scientific hypothesis. Scientific hypotheses are typically based on prior observations that cannot be adequately explained by the current body of knowledge.

Here, we have

Given: Students at a certain college claim that the average distance students commute to campus is 26 miles per day.

This will be a two-tailed test because the alternative hypothesis is showing a specific direction

This is the two-tailed test.

The null and alternative hypothesis is,

H₀ : μ = 26

Hₐ: μ ≠ 26

x = 29

s = 8

n = 16

1) Test statistic = t = (x-μ)/s/√n

= (29-26)/8/√16

= 3/8/4

= 1.5

degrees of freedom = n - 1 = 16 - 1 = 15

p(t > 1.5) = 1-P (t < 1.5) = 1 - 0.9228

= 0.0772

This is the two-tailed test.

2) p-value = 2 * p(t > 1.5)

p-value = 2 * 0.0772

p-value = 0.1544

Hence, 1)  The test statistic is 1.5

2) The p-value is  0.1544.

To learn more about the hypothesis from the given link

https://brainly.com/question/15980493

#SPJ4

The approximate area of the trapezoid is determined as  13.95 unit².

The approximate area of the trapezoid is calculated as follows;

Area = ¹/₂(b₁ + b₂)h

Where;

The y-coordinates of the points on the curve at x=3/2 and x=4 is calculated as follows;

y(3/2) = - (3/2)²/2 + 3/2 + 5

y(3/2) = -9/8 + 3/2 + 5

y(3/2) = 5.375

y(4) = -4²/2 + 4 + 5

y(4) = -8 + 9

y(4) = 1

h = 5.375 - 1 = 4.375

The approximate area of the trapezoid is calculated as;

Area = ¹/₂(5.375 + 1) x 4.375

Area = 13.95 unit²

Learn more about approximate area of trapezoid here: https://brainly.com/question/22357828

#SPJ1

The statements that are true of medians in even and odd distributions are:

An even quantity of data values will forever maintain a pair of central numbers. In these circumstances, the middle numbers are attained by calculating the average among the two numbers amidst the set of data. As an illustration, in the series {1, 2, 3, 4}, the dual numeral at the core are 2 and 3.

The mean value between these integers is (2+3)/2=2.5, ultimately making it the center number of this cluster of data. Conversely, an odd number of data inserts shall eternally acquire only one midpoint, simply the figure located within the dataset's nucleus.

Find out more on odd distributions at https://brainly.com/question/1625901

#SPJ1

The positive difference of outputs for any two inputs that are three values apart is 1.5.

To find the positive difference of outputs for any two inputs that are three values apart, we can choose two such inputs, calculate their respective outputs, and find the absolute value of their difference. Let's choose -3 and 0 as our inputs, which are three values apart, and find their respective outputs:

f(-3) = -1.5

f(0) = 0

The positive difference between these outputs is:

|f(-3) - f(0)| = |-1.5 - 0| = 1.5

This means that for any two inputs that are three units apart, the output of the function increases or decreases by 1.5 units.

To learn more about linear function click on,

https://brainly.com/question/7325168

#SPJ1

Complete question is:

This table shows input and output values for a linear function f(x) .

What is the positive difference of outputs for any two inputs that are three values apart?

x f(x)

-3 -1.5

-2 -1

-1 -0.5

0 0

1 0.5

2 1

3 1.5

There are 26 uppercase English letters and 10 digits (0 to 9). Therefore, there are $26 \times 26 \times 10 \times 10 \times 10 \times 10 = 67,!600,!000$ ways to form a license plate with two uppercase English letters followed by four digits.

Similarly, there are $26 \times 26 \times 26 \times 26 \times 10 \times 10 = 45,!697,!600$ ways to form a license plate with four uppercase English letters followed by two digits.

The total number of possible license plates is the sum of these two numbers:

67,600,000 + 45,697,600 = 113,297,600

Therefore, there are $113,!297,!600$ possible license plates that can be made using either two uppercase English letters followed by four digits or four uppercase English letters followed by two digits.

Learn more about Permutation Combination here:-brainly.com/question/4658834

#SPJ11

The 95% confidence range for the genuine proportion of all individuals who would prefer to sleep at home while unwell is (0.598, 0.662). We would be astonished if the real percentage of adults who prefer to sleep when home sick is 70%, considering the confidence range excludes this amount. In fact,

(a)Using the procedure, we can get a 95% confidence range for the genuine percentage of all individuals who would prefer to sleep when at home sick:

CI = p ± z √(p(1-p)/n)

where p is the sample proportion, z is the z-score corresponding to a 95% confidence level (1.96), and n is the sample size.

Using the given information, we have:

p = 0.63

z = 1.96

n = 1000

Plugging in the values, we get:

CI = 0.63 ± 1.96 √(0.63(1-0.63)/1000)

CI = 0.63 ± 0.032

The 95% confidence interval for the true percentage of all adults who would choose to sleep when they are at home sick is (0.598, 0.662).

(b) If the true percentage of adults who would choose to sleep when they are home sick is 70%, we would be surprised because the confidence interval does not include this value. In fact, the lower bound of the interval is 0.598, which is significantly lower than 70%. This means that we can be fairly confident that the true percentage is less than 70%.

Learn more about z-score

https://brainly.com/question/15016913

#SPJ4

If the independent variables explain less than 50% of the variation in the dependent variable, it could be due to a variety of factors related to the quality of the model, the presence of other unmeasured factors, or the inherent variability of the dependent variable.

What is proportion?

The size, number, or amount of one thing or group as compared to the size, number, or amount of another. The proportion of boys to girls in our class is three to one.

If the independent variables explained less than 50% of the variation in the dependent variable, it means that there is a large amount of unexplained variability in the data.

In this case, the following could be true:

The model is not a good fit for the data: If the model is not a good fit for the data, it means that the relationship between the independent and dependent variables is not accurately captured by the model.

This can lead to a large amount of unexplained variability in the data, resulting in a low proportion of explained variability (less than 50%).

There may be other factors affecting the dependent variable: If the independent variables do not explain a large proportion of the variability in the dependent variable, it could be due to the presence of other factors that also affect the dependent variable.

These factors may not have been included in the model, resulting in a large amount of unexplained variability.

The dependent variable may be inherently variable: In some cases, the dependent variable may be inherently variable, making it difficult to explain using a small set of independent variables.

This can result in a low proportion of explained variability, even if the model is a good fit for the data and all relevant independent variables have been included.

Hence, if the independent variables explain less than 50% of the variation in the dependent variable, it could be due to a variety of factors related to the quality of the model, the presence of other unmeasured factors, or the inherent variability of the dependent variable.

To learn more about the proportion visit:

brainly.com/question/870035

#SPJ4

The variable that is most important to the given problem is the number of tents the Army orders. So, correct option is b.

The tentmaker has 60,000 tents in stock, and the Army orders 350 tents for each of its 200 brigades. So, the total number of tents required by the Army is:

350 x 200 = 70,000 tents

As the number of tents ordered by the Army is greater than the number of tents available in the stock, the tentmaker will not have enough tents to fulfill the Army's order.

The price of one tent and the size of each tent are not relevant to the question of whether the tentmaker will have enough tents in stock to fulfill the Army's order. Therefore, option A and option C are not the most important variables in this problem.

So, correct option is b.

To learn more about variable click on,

https://brainly.com/question/1348849

#SPJ1

Answer: 36 feet

Step-by-step explanation: I hope this helps

The union needs a minimum sample size of 140 to be 95% confident that their estimate of μ is within $0.35 of the true value.

To achieve this level of confidence, the union needs to determine the minimum sample size required. The sample size is important because it affects the precision of the estimate. A larger sample size generally leads to a more precise estimate.

To find the minimum sample size needed, we need to use a formula that relates the sample size, the confidence level, the standard deviation of the population, and the margin of error. The formula is:

n = (z² * σ²) / E²

where n is the sample size, z is the z-score associated with the desired confidence level (in this case, 1.96 for 95% confidence), σ is the standard deviation of the population, and E is the margin of error (in this case, $0.35).

Plugging in the given values, we get:

n = (1.96² * 2.25²) / 0.35² n = 139.79

To know more about sample size here

https://brainly.com/question/30885988

#SPJ4

Complete Question:

A union of restaurant and food service workers would like to estimate the mean hourly wage, μ , of food service workers in the U.S. The union will choose a random sample of wages and then estimate μ using the mean of the sample. What is the minimum sample size needed in order for the union to be 95% confident that its estimate is within $0.35 of μ ?

Suppose that the standard deviation of wages of food service workers in the U.S. is about $2.25. Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements).

Data value in a distribution is transformed linearly by adding or subtracting some value, the distribution is shifted either to the right or left on the number line.

This process is known as centering.

The effect of centering can be seen in the measures of central tendency, such as the mean and median.

Data is centered by subtracting a constant value, the mean of the distribution is shifted by the same amount in the opposite direction.

If we center data by subtracting 10 from each data point, the mean of the new distribution will be 10 less than the mean of the original distribution.

The median, on the other hand, is not affected by centering, as it is simply the middle value of the dataset.

Centering can change the position of the median in relation to the mean, depending on the shape of the distribution.

Centering can also affect measures of dispersion, such as the range and standard deviation.

Data is centered by subtracting a constant value, the range of the distribution remains the same, but the standard deviation is reduced by the same amount.

This is because centering moves the data closer to the mean, which reduces the spread of the data.

Overall, centering data by adding or subtracting a constant value is a useful tool in data analysis, as it can help to reveal patterns and relationships that may not be apparent in the original dataset.

For similar questions on distribution

https://brainly.com/question/4079902

#SPJ11

An example where Mookie betts of the boston red sox had the highest batting average in 2018 with probability of average batts is 0.364 for each is a binomial Probability example.

In the statistics, the concept of probability is handy in figuring out the likelihood a particular outcome would occur for an event or decision. On the basis of probability, one can figure out other related probabilities like the probability of not having that particular outcome or the probability of having only that outcome every time. There is Mookie betts of the boston red sox had the highest batting average in league baseball season.

The average probability = 0.364 for each time of bats.

That is Probability of hitting or success, p = 0.364

Number of trials, n = 7

That is Probability distribution is written as [tex]X \: \tilde \: \: Binom( n,p) [/tex].

After reading all seniror, the probability for seven seven times at bat tonight in the red sox-yankee game is an example of binomial Probability.

For more information about binomial probability, visit:

https://brainly.com/question/15278907

#SPJ4

A normal probability plot (also known as a normal plot or a probability plot) is a graphical tool that can be used to assess whether a set of data follows a normal distribution.

When the data being plotted follows a normal distribution, the points on the plot will appear roughly linear, with deviations from linearity being relatively minor. In other words, the plot will form a straight line.

If the plot deviates significantly from a straight line, it suggests that the data may not be normally distributed. The shape of the plot can indicate whether the data is skewed or has heavy tails compared to a normal distribution.

Therefore, a normal probability plot appearing linear indicates that the data follows a normal distribution. It is important to note that this is only one way to check for normality, and it is always recommended to use multiple methods to verify the normality assumption before applying statistical tests that assume normality.

for such more question on normal distribution

https://brainly.com/question/25224028

#SPJ11

The correct statistical null hypothesis (H0) for this study is option b: fish that are exposed to the herbicide have the same average enzyme level compared to fish that are not exposed.

In the study conducted by an environmental scientist to investigate the effect of exposure to an herbicide on the levels of a particular enzyme in a species of fish (species 1), the statistical null hypothesis (H0) for this study is:
B. Fish that are exposed to the herbicide have the same average enzyme level compared to fish that are not exposed.
The null hypothesis assumes that there is no significant difference between the treatment and control groups, meaning that the herbicide has no effect on the enzyme levels in the fish.

Visit here to learn more about herbicide:

brainly.com/question/31375814

#SPJ11

A: Two proportions from independent samples would be used to answer this question.

After comparing the percentage of runners that typically wear sunscreen on a run to the percentage of bikers that typically wear sunscreen on a bike ride. The survey is comparing the percentage of runners who wear sunscreen to the percentage of bikers who wear sunscreen, which is a comparison of two proportions. The samples of runners and bikers are independent since they are two separate groups being compared, and the design is not matched or paired in any way. Therefore, option A is the correct choice.

Learn more about proportions:

https://brainly.com/question/870035

#SPJ4

[tex] \frac{ \sqrt{2} }{6} [/tex]

~

0.23

Answer:

72 cm²

Step-by-step explanation:

We can split this composite figure into 3 simple shapes:

First, we can solve for the area of the rectangles:

A(rect) = length × width

A(rect1) = 4 × (9 - 3) = 24

A(rect2) = 10 × 3 = 30

Next, we can solve for the area of the triangle:

A(triangle) = (1/2) × base × height

A(triangle) = (1/2) × (10 - 4) × 6

A(triangle) = 3 × 6 = 18

Finally, we can add each the simple shapes' areas together to get the area of the whole figure.

A = A(rect1) + A(rect2) + A(triangle)

A = 24 + 30 + 18

A = 72 cm²

To prove that there exist infinitely many primes p ≡ 3 mod 4 without using Dirichlet's theorem, we can use a proof by contradiction.  Assume that there are only finitely many primes p ≡ 3 mod 4, say p1, p2, ..., pk. Let N be the product of all these primes, i.e. N = p1p2...pk.

1. Let's denote these finitely many primes as {p_1, p_2, ..., p_k}, where each prime p_i ≡ 3 mod 4.
2. Now consider the number N = (4 * p_1 * p_2 * ... * p_k) - 1. Notice that N ≡ 3 mod 4.
3. N has a unique prime factorization, and since N ≡ 3 mod 4, at least one of its prime factors must be congruent to 3 mod 4.
4. Since we assumed there are only finitely many primes congruent to 3 mod 4, we can check if any prime in the set {p_1, p_2, ..., p_k} divides N. Notice that for every prime p_i in the set, N ≡ -1 mod p_i, which means that no prime p_i can divide N.
5. This leads to a contradiction since N must have a prime factor congruent to 3 mod 4, but none of the primes in our set can divide N. Therefore, our initial assumption is incorrect.

So, there must be infinitely many primes p ≡ 3 mod 4.

Learn more about theorem here : brainly.com/question/30066983

#SPJ11

The incenter of a triangle is the point of intersection of the angle bisectors of the three angles of the triangle. This point is equidistant from the three sides of the triangle, and it is the center of the circle that is tangent to all three sides of the triangle.

To illustrate an incenter, we need to look for a triangle that has a point that is equidistant from all three sides. One such triangle is an equilateral triangle, which has all three sides equal in length and all three angles equal in measure.

In an equilateral triangle, the incenter coincides with the centroid, circumcenter, and orthocenter. These four points are all located at the same point, which is the center of symmetry of the triangle.

To see why the incenter is at the center of an equilateral triangle, consider that the angle bisectors of an equilateral triangle form three congruent angles of 60 degrees each. These angle bisectors also bisect the sides of the triangle at right angles, forming six congruent 30-60-90 triangles. Since the incenter is the point where the angle bisectors intersect, it follows that the incenter is equidistant from all three sides of the triangle.

Learn more about intersection

https://brainly.com/question/14217061

#SPJ4

Perimeter = 2(8 cm + 6 cm) = 2(14 cm) = 28 cm. We can calculate it in the following manner.

The perimeter of the rectangular piece of cardboard is the sum of all four sides. Using the given measurements of 8 cm by 6 cm, we can calculate the perimeter as follows:

Perimeter = 2(Length + Width)
Perimeter = 2(8 cm + 6 cm)
Perimeter = 2(14 cm)
Perimeter = 28 cm

Therefore, the perimeter of the rectangular piece of cardboard is 28 cm.
Hi! To calculate the perimeter of a rectangular piece of cardboard with measurements 8 cm by 6 cm, you can use the formula: Perimeter = 2(Length + Width). In this case, the length is 8 cm and the width is 6 cm.

Your answer: Perimeter = 2(8 cm + 6 cm) = 2(14 cm) = 28 cm.

Visit here to learn more about perimeter brainly.com/question/6465134

#SPJ11

The derivative of F(x) is [tex]F'(x) = 6 - 12(3x+1)^{(1/3)[/tex].

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.

To find the derivative of the given function F(x), we will apply the fundamental theorem of calculus and differentiate the integral with respect to x.

Let's compute F'(x):

F(x) = ∫[2 to 3x] [tex](2 - 4(t+1)^{(1/3))} dt[/tex]

To differentiate the integral with respect to x, we'll use the Leibniz integral rule:

F'(x) = d/dx ∫[2 to 3x] [tex](2 - 4(t+1)^{(1/3))} dt[/tex]

According to the Leibniz integral rule, we have to apply the chain rule to the upper limit of the integral.

[tex]F'(x) = (2 - 4(3x+1)^{(1/3)}) d(3x)/dx - (2 - 4(2+1)^{(1/3)}) d(2)/dx[/tex]   [applying the chain rule to the upper limit]

[tex]F'(x) = (2 - 4(3x+1)^{(1/3)}) (3) - (2 - 4(2+1)^{(1/3)})[/tex] (0)  [using the power rule for differentiation]

[tex]F'(x) = 6 - 12(3x+1)^{(1/3)[/tex]

Therefore, the derivative of F(x) is [tex]F'(x) = 6 - 12(3x+1)^{(1/3)[/tex].

Learn more about functions on:

https://brainly.com/question/7693326

#SPJ4

The 30º-60º-90º Triangle Theorem states that the longer leg of a triangle is equal to the shorter leg multiplied by the square root of 3, and the hypotenuse is equal to twice the shorter leg.

Therefore, if the length of the shorter leg is 4 inches, the longer leg would be 4√3 inches, and the hypotenuse would be 8 inches.

To apply the 30-60-90 Triangle Theorem, remember the ratio of the sides is 1:√3:2. In this case, the length of the shorter leg is 4 inches (corresponding to the 30º angle). Since the ratio of the shorter leg to the hypotenuse is 1:2, simply double the length of the shorter leg to find the hypotenuse. So, the length of the hypotenuse is 4 × 2 = 8 inches.

Visit here to learn more about 30º-60º-90º Triangle Theorem  : https://brainly.com/question/4125752
#SPJ11

Answer:

Interval Frequency

0 - 1 5

2 - 3 0

4 - 5 4

6 - 7 8

8 - 9 6

The probability that a randomly chosen customer who likes cake also likes pie is 2/3 or 0.6

To find the probability that a customer who likes cake also likes pie, we need to look at the overlap between the cake and pie circles in the Venn diagram. The diagram shows that 10 customers like both cake and pie, out of a total of 25 customers surveyed.

So, the probability that a randomly chosen customer who likes cake also likes pie is:

P(pie | cake) = number of customers who like both cake and pie / number of customers who like cake

P(pie | cake) = 10/15

P(pie | cake) = 2/3

Therefore, the probability that a randomly chosen customer who likes cake also likes pie is 2/3 or 0.67.

Visit here to learn more about probability brainly.com/question/32117953

#SPJ11

Answer: 2/3

Step-by-step explanation:

the fraction of four-digit positive integers containing only digits from the set {2,4,6,8} that have at least one of their digits repeated is 29/32.

First, let's determine the total number of four-digit positive integers using digits from the set {2,4,6,8}. Since there are 4 choices for each of the 4 digits, there are a total of 4^4 = 256 possible integers.

Next, we'll count the number of four-digit integers without any repeating digits. Since there are 4 choices for the first digit, 3 choices for the second digit, 2 choices for the third digit, and 1 choice for the last digit, there are a total of 4! (4 factorial) = 4 x 3 x 2 x 1 = 24 integers without any repeating digits.

Now, to find the number of integers with at least one repeating digit, we can subtract the number of integers without any repeating digits from the total number of integers: 256 - 24 = 232 integers.

Finally, to find the fraction of these integers with at least one repeating digit, we'll divide the number of integers with at least one repeating digit by the total number of integers: 232/256 = 29/32.

To know more about fraction Visit:

https://brainly.com/question/10354322

#SPJ11

The simplest form of the expression √2-√10/√2+√10 is -√5.

To do this, we multiply both the numerator and denominator of the fraction by the conjugate of the denominator. The conjugate of a binomial is the same as the binomial, but with the opposite sign in the middle. For the denominator √2+√10, the conjugate is √2-√10.

So, we multiply the numerator and denominator of the expression by √2-√10:

(√2-√10/√2+√10) x (√2-√10/√2-√10)

Expanding the denominator, we get:

(√2-√10) x (√2-√10) / (2 - 10)

Simplifying the denominator, we get:

(√2-√10) x (√2-√10) / (-8)

Expanding the numerator, we get:

2 - 2√20 + 10 / (-8)

Simplifying the numerator, we get:

-8√5 / 8

Canceling out the common factor of 8, we get:

-√5

To know more about expression here

https://brainly.com/question/14083225

#SPJ4

To answer this question, a chi-square test of independence can be used to determine if there is a significant association between region of the country and support for new national parks (for or against).

The null hypothesis would be that there is no association between the two variables, and the alternative hypothesis would be that there is an association.

To analyze whether support for new national parks differs by region in the country (West, Midwest, South, Northeast), you would use an Analysis of Variance (ANOVA) test. The ANOVA test allows you to compare the means of multiple groups (in this case, the regions) to determine if there is a significant difference in support for new national parks among them.

Visit here to learn more about null hypothesis  : https://brainly.com/question/28920252
#SPJ11