Plsss helppppp meeee

Step-by-step explanation:

(6+b)/b = x (= an integer number)

6 + b = bx (= still an integer number)

6 = bx - b = b(x - 1) (= still an integer number)

b = 6/(x - 1) (= still an integer number)

now for b to be integer, (x-1) must be a factor of 6 (6 must be divisible by x-1 with 0 remainder).

and integer includes negative numbers too.

the factors of 6 are therefore

1, 2, 3, 6, -1, -2, -3, -6

so, b can be 6/±1 = ±6

b can be 6/±2 = ±3

b can be 6/±3 = ±2

b can be 6/±6 = ±1

so, all possible values for b are also the listed factors of 6 :

-6, -3, -2, -1, 1, 2, 3, 6

The 5 cm distance of the point of intersection from the plane and the angles of 45° and 30° formed by the lines and the plane give the distance between the points of intersection of the lines and the plane as approximately 13.66 centimeters

A point of intersection is the point where two figures meet (intersect).

The distance between the point of intersection of the line and the plane = 5 cm

The angles formed by the lines and the plane = 45° and 30°

The distance between the point of intersection of the lines and the plane is found by taking the figure formed by the two lines and the line joining their points of intersection with the plane as a triangle that has an altitude of 5 cm.

The distance, d, between the points of intersection of the lines and the plane is found using the trigonometric ratio for tangent as follows;

\(tan(\theta) = \dfrac{Opposite \, side}{Adjacent \, side}\)

Therefore;

\(d = \dfrac{5}{tan(45^{\circ}) } +\dfrac{5}{tan(30^{\circ})} = 5 + 5\cdot \sqrt{3}\)

The distance between the points, d = (5 + 5·√3) cm ≈ 13.66 cm

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Domain - {0, 1, 2, 3}

Range - {2, 5, 8, 11}

The domain is x and the range is y

Hope that helped:)

Based on the information provided, 2 is not a solution of x>5 because a possible solution requires a number greater than 5.

Inequalities include symbols such as >, ≤, ≥, among others that should be interpreted correctly to solve the inequality. In this case, the symbol in the inequality is >, which means greater than. Based on this, the value of x should be greater than 5, for example, 7, 19, 2948, etc.

Therefore, 2 is not a solution to the inequality x>5 because a number greater than 5 rather than less than 5 is required to solve this expression.

Note: This question is incorrect and incomplete; here is the complete question:

Explain why 2 is NOT a solution of x>5

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Identifying Eigenvalues and Eigenvectors, A should be a n x n matrix. By resolving the det(λI−A)=0 problem, first determine the eigenvalues of A. Find the fundamental solutions to (λI−A)X=0 to determine the fundamental eigenvectors X≠0 for each.

In linear algebra, a nonzero vector is said to have an eigenvector, or characteristic vector, when a linear transformation is applied to it; this characteristic vector only changes by a scalar amount. The scaling factor for the eigenvector is known as the associated eigenvalue, frequently represented by the symbol. Linear transformations are made intelligible by the usage of eigenvectors. Eigenvectors can be thought of as a non-directional stretching or compressing of an X-Y line chart. In mathematics, eigenvalues are regarded as the factor by which a transformation is stretched, whereas eigenvectors are the real non-zero eigenvalues that point in the direction stretched by the transformation. The direction of the transformation is negative if the eigenvalue is negative.

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Based on the above, the capacity of a 5-liter tin is about  500 cm³.

To be able to convert the capacity of a 5-liter tin to its volume in cm³, One need to use the conversion factor that is, 1 liter is equivalent to 100 cm³.

So, to be able to calculate the volume of a 5-liter tin in cm³, one have to multiply the capacity (5 liters) by the conversion factor (100 cm³/liter):

Volume in cm³ = 5 liters x 1000 cm³/liter

                           = 500 cm³

Therefore, the capacity of a 5-liter tin is about  500 cm³.

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See full text below

Convert the capacity of a 5 litre tin to its volume in cm³.1litre is equivalent to 100cm³

The top of the ladder sliding down the vertical wall with  -0.75 feet/s  when the bottom of the ladder is 6 feet from the vertical wall using pythagoras theorem and then differentiate the equation.

Given that the ladder is 10 feet long.

To calculate

velocity with which top of the ladder sliding.

given

x= -6 feet

y = 8 feet

By pythagoras  theorem  

   \(x^{2} +y^{2}\) = \(10^{2}\)

differentiate the given equation with respect to t

   2 x \(\frac{dx}{dt} +\) 2 y \(\frac{dy}{dt}\)  = 0

    x * \(\frac{dx}{dt}\)  = - y * \(\frac{dy}{dt}\)

   \(\frac{dy}{dt}\)=   \(\frac {\frac{-x dx}{dt}}{y}\)

   \(\frac{dx}{dt}\) = \(V_{x}\)    ,  \(\frac{dy}{dt}\) =\(V_{y}\)

\(V_{y}\) =-((-6)/8) *(1 feet)

\(V_{y}\) = -0.75 feet/s

so, the velocity at which the top of the ladder sliding down the vertical wall when the bottom of the ladder is 6 feet is -0.75 feet/s .

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Answer:

0.42686626268 yeah that it

The average cost of a hotel room in Chicago. A random sample of 25 hotels is taken, resulting in a sample mean of $174 and a sample standard deviation of $16.1.

To test the hypothesis, we use a one-sample t-test since the population standard deviation is unknown. The null hypothesis (H0) states that the population mean is equal to $170, while the alternative hypothesis (Ha) states that the population mean is different from $170.

Using the sample data, we can calculate the t-value by using the formula t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size)). With the given values, we can compute the t-value.

Next, we compare the calculated t-value to the critical t-value from the t-distribution table at the chosen significance level (0.05). If the calculated t-value falls within the rejection region (the critical region), we reject the null hypothesis. Otherwise, we fail to reject the null hypothesis.

In this case, if the calculated t-value falls beyond the critical t-value, we can conclude that there is sufficient evidence to suggest that the average cost of a hotel room in Chicago is significantly different from $170. On the other hand, if the calculated t-value falls within the critical region, we do not have enough evidence to reject the null hypothesis and cannot conclude that the average cost differs significantly from $170.

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Answer:

X would be 18x

Step-by-step explanation:

Astronauts brought back 500 lbs rock samples from the moon they brought back 227 kilograms of sample. The correct option is D.

Who, in brief, is an astronaut?

As the astronaut brought 550 lbs sample,

2.20lbs = 1 kg.

1 lbs = 1/2.20

1 lbs = 0.45

so, 500 lbs nearly implies 227kgs.

Thus, the correct option is D.

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The answers to all parts is shown below.

An open, flat object with four straight sides and one pair of parallel sides is referred to as a trapezoid or trapezium. A trapezium's non-parallel sides are referred to as the legs, while its parallel sides are referred to as the bases.

1. ABCD is Square then

AB = DC

4x - 22 = 14 - 2x

4x + 2x = 14 + 22

6x = 36

x= 6

So, the length of BC is 6 unit.

2. In Rhombus using Angle Sum property

<BAC = 180 - (47 + 90)

<BAC = 43 degree

3. The length of median is 1/2 ( sum of bases)

= 1/2 (13+ 27)

= 1/2 x 40

= 20 unit

4. m< M= m <P

4x = x + 21

4x - x = 21

3x = 21

x= 7

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Answer:

first one gas in tank second one answer a

Step-by-step explanation:

Answer:

14.25 gallons of gas left in the tank after one hour.

Step-by-step explanation:

x is time

y is gallons of gas in tank

(x,y)

(time,gallons)

(1,14.25)

(1hr,14.25gallons)

At 1 hour, there are 14.25 gallons left in the tank.

Answer:

27°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

let the third angle be x , then

x + 90° + 63° = 180°

x + 153° = 180° ( subtract 153° from both sides )

x = 27°

Answer:

27 degrees

Step-by-step explanation:

A right angled triangle has 1 angle as 90 degree. And as you know the other angle is 63 degree, and the angle sum property of a triangle is 180 degrees. So-

Let's take 'x' as the other angle.

90 + 63 + x = 180

153 + x = 180

x = 180 - 153 = 27

x = 27 degrees

So, the other angle is 27 degrees.

All the angles of the right-angled triangle are- 90, 63, 27.

Answer:

9, 13, 17, 21, 25, 29

Step-by-step explanation:

Since there is an equal increase of the same amount, the sequence is arithmetic with n th term

Substituting a = 9 and d = 4 into the n th term expression

\(a_{n}\) = 9 + 4(n - 1) = 9 + 4n - 4 = 4n + 5

\(a_{n}\) = a + (n - 1)d

where a is the first term and d the common difference

The third term and sixth term are therefore

a + 2d = 17 → (1)

a + 5d = 29 → (2)

Subtract (1) from (2) term by term, eliminating a, that is

3d = 12 ( divide both sides by 3 )

d = 4

Substitute d = 4 into either of the 2 equations and solve for a

Substituting into (1)

a + 2(4) = 17

a + 8 = 17 ( subtract 8 from both sides )

a = 9

Thus the first term is 9 and the common difference d = 4

The sequence of terms is therefore

9, 13, 17, 21, 25, 29

Substituting a = 9 and d = 4 into the n th term expression

\(a_{n}\) = 9 + 4(n - 1) = 9 + 4n - 4 = 4n + 5

The equilibrium price and quantity is the intersection of the demand and supply curves.

At the equilibrium point, there is no excess supply or excess demand; all goods brought to the market are sold and consumers get the exact amount of the product they demand.

Therefore, equilibrium is reached at the intersection of the supply and demand curves, that is, where p = s(q) = d(q).

We will solve these equations to find the equilibrium quantity and price:

\($$150-0.5q = 0.002q^2 +1.5$$$$0.002q^2 +0.5q - 148.5 = 0$$\)

By solving the above quadratic equation, we get the values of q which is the equilibrium quantity.

q = 108.6

Hence, the equilibrium quantity is 109.

The equilibrium price is given by p = d(q), where q is the equilibrium quantity.

p = d(q) = 150 - 0.5(108.6)

p = 96.7

Therefore, the equilibrium price is $96.7.

(b) Consumer Surplus:

Consumer surplus (CS) is the difference between the price consumers are willing to pay for a good or service and the price they actually pay.

At the equilibrium point, consumer surplus is given by the area above the equilibrium price and below the demand curve, up to the equilibrium quantity.

We can calculate the consumer surplus using the following equation:

\($$CS = \frac{(150-96.7)(109)}{2}$$$$CS = 2905.15$$\)

Hence, the consumer surplus is $2905.15.

(c) Producer Surplus:

Producer surplus (PS) is the difference between the price received by producers for a good or service and the price they are willing to sell it for.

At the equilibrium point, producer surplus is given by the area below the equilibrium price and above the supply curve, up to the equilibrium quantity. We can calculate the producer surplus using the following equation:

\($$PS = \frac{(96.7 - 1.5)(109)}{2}$$$$PS = 5227.65$$\)

Therefore, the producer surplus is $5227.65.

(d) Total Gain:

Total gain or total welfare is the sum of consumer surplus and producer surplus. We can calculate the total gain as follows:

\($$Total gain = CS + PS$$$$Total gain = 2905.15 + 5227.65$$$$\)

Total gain = 8132.8$$

Hence, the total gain at the equilibrium point is $8132.8.

The equilibrium quantity and price of a product is determined by the intersection of the demand and supply curves. At the equilibrium point, there is no excess supply or excess demand; all goods brought to the market are sold and consumers get the exact amount of the product they demand. We can calculate the consumer surplus and producer surplus at the equilibrium point by finding the areas above and below the equilibrium price and between the demand and supply curves. The total gain at the equilibrium point is the sum of consumer surplus and producer surplus.

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J is a maximal ideal.

1. To prove that A/J is a commutative ring with unity, note that the operations of addition and multiplication on A/J are well-defined and are commutative since they are inherited from the commutative ring A. Furthermore, the additive identity of A is the same as the additive identity of A/J, and therefore A/J has a unity.
2. Suppose first that J is a prime ideal of A. Then, if A/J is not an integral domain, there exist two nonzero elements x,y of A/J such that xy=0. This means that x and y are in the same coset of J in A. Thus, x-y is an element of J. Since J is prime, either x or y must be in J, which is a contradiction. Therefore, A/J is an integral domain. Conversely, if A/J is an integral domain, then the same argument can be reversed to show that J is a prime ideal.
3. If J is a maximal ideal of A, then A/J is a field by the fact proved in this chapter. Since a field is an integral domain, J is a prime ideal.
4. Suppose that A/J is a field. Then, for any ideal I of A, either I is contained in J or J is contained in I. This implies that J is a maximal ideal.

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Step-by-step explanation:

(i) Here in ∆ AED and ∆ CEB ,

Hence by AAS congruence congruence condition ,

Also ,

==========================================

(ii) In ∆ AEB and ∆CED ,

Hence by SAS condition ,

===========================================

(iii) Here ,

Since these two angles are alternate interior Angles and equal . Hence the lines will be parallel . Also since ∆AEB is congruent to ∆CED , the corresponding sides will be equal . Hence AB = CD .

The upper and lower 3-sigma control chart limits for this DNA sample data are UCL = 18.53 and LCL = 0

When we are given data on the DNA samples taken over the past 10 days, we can calculate the upper and lower 3-sigma control chart limits. The sample size is 100, and the defective number of DNA samples is given for each of the ten days.

The 3-sigma control limits for a process control chart can be calculated using the following formula: Upper control limit (UCL) = Mean + (3 × Standard Deviation) and Lower control limit (LCL) = Mean - (3 × Standard Deviation),where the mean is the average value of the data, and the standard deviation is the spread of the data around the mean.

Here, we need to calculate the mean and standard deviation of the defective samples for the past 10 days. The average number of defectives per day (mean) is (7+9+9+11+7+8+0+11+13+2) / 10 = 77 / 10 = 7.7

To calculate the standard deviation, firstly, calculate the variance: variance = sum of the squared differences from the mean divided by the number of samples = \([(7-7.7)^2 + (9-7.7)^2 + ... + (2-7.7)^2] / 10\)  ≈ 13.01 2.. Now, take the square root of the variance which gives standard deviation. So, standard deviation = \(\sqrt{13.01\\}\) ≈ 3.61

Using the 3-sigma rule UCL = Mean + (3 * Standard Deviation) = 7.7 + (3 * 3.61) ≈ 18.53    and   LCL = Mean - (3 * Standard Deviation) = 7.7 - (3 * 3.61) ≈ -3.13. However, since the LCL cannot be negative, we set it to 0 in this context. So, the upper and lower 3-sigma control chart limits are: UCL = 18.53 LCL = 0

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a) The z-score for a shoe size of 7.5 is approximately -0.4.

b) The shoe size corresponding to a z-score of 1.3 is approximately 9.625.

c) The z-score for a shoe size of 9 is approximately 0.8.

d) The shoe size corresponding to a z-score of -1.5 is approximately 6.125.

e) To find the shoe size representing the 80th percentile, we need to determine the corresponding z-score using a z-score table or calculator and then use the formula x = (z * standard deviation) + mean.

a) To calculate the z-score, we use the formula: z = (x - mean) / standard deviation. For a shoe size of 7.5, the z-score would be: z = (7.5 - 8) / 1.25 = -0.5 / 1.25 = -0.4.

b) To find the shoe size with a z-score of 1.3, we rearrange the formula: x = (z * standard deviation) + mean. Plugging in the values, we get: x = (1.3 * 1.25) + 8 = 1.625 + 8 = 9.625.

c) For a shoe size of 9, the z-score is: z = (9 - 8) / 1.25 = 1 / 1.25 = 0.8. The percentile can be found using a z-score table or calculator.

d) With a z-score of -1.5, we can use the same formula as before: x = (z * standard deviation) + mean. Plugging in the values, we get: x = (-1.5 * 1.25) + 8 = -1.875 + 8 = 6.125. The percentile can be found using a z-score table or calculator.

e) To find the shoe size representing the 80th percentile, we can use the inverse of the z-score formula: x = (z * standard deviation) + mean. The z-score corresponding to the 80th percentile can be found using a z-score table or calculator.

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Answer:

200 x .39

Step-by-step explanation:

200 x .39= 78

Answer:

39 percent of 200 is the same as 39 per hundred of 200. We can therefore make the following equation:

39/100 = X/200

To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 200, and then finally divide the numerator by the denominator on the right side to get the answer.

39/100 = X/200

X/200 = 39/100

X*200/200 = 39*200/100

X = 7800/100

X = 78

The work above shows the long way to explain how to calculate 39 percent of 200 in order to give you a foundation and better understanding of how to calculate percentage. In the future, you could use this simplified formula:

(Y * P)/100

In our problem "What is 39 percent of 200?", Y is 200 and P is 39:

(200 * 39)/100 = 78

And once again you see that the answer is 78.

Step-by-step explanation:

Ocean Adventures charges $35 an hour to rent a sailboard plus $14 for a wetsuit. Water Fun Inc. charges $22 an hour plus $40 for a wetsuit. Write an inequality to represent that the cost of renting a sailboard and wetsuit costs less at Ocean Adventures ​

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Ocean adventures :

Cost of renting a sailboard = $35/ hr plus $14 for a wetsuit

Water Fun Inc.

Cost of renting a sailboard = $22/ hr plus $40 for a wetsuit

Total cost of sailboard and wetsuit :

Ocean adventure = $(35 + 14) = $49 / hr

Water Fun Inc. = $(22 + 40) = $62 / hr

Since ;

$49 < $62 ;

Hence

Cost at ocean adventure < cost at water fun Inc.

The shortest distance he would need to travel to get back to his starting point is 2.83 km

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

A walker travels 2 km due north and 2 km due east

The shortest distance he would need to travel to get back to his starting point can be calculated using pythagoras theorem

So, we have

Distance = √(2² + 2²)

Evaluate

Distance = 2.83

Hence, the shortest distance is 2.83 km

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a) We need a sample size of 96 for each group to estimate μ1 - μ2 with a sampling error of 3.2 and 95% confidence, given that σ1 = 15 and σ2 = 17. b) We need a sample size of 405 for each group to estimate μ1 - μ2 with a sampling error of 8 and 99% confidence, given that the range of each population is 60.

a) For a 95% confidence interval and a sampling error of 3.2, the formula for the margin of error is:

ME = z* (σ/√n)

where z* is the z-score corresponding to a 95% confidence level, σ is the common standard deviation (assumed to be the average of σ1 and σ2), and n is the sample size for each group.

Rearranging the formula to solve for n, we get:

n = (z* σ / ME)²

Substituting z* = 1.96 (from the z-table for a 95% confidence level), σ = (15 + 17) / 2 = 16, and ME = 3.2, we get:

n = (1.96 × 16 / 3.2)² = 96.04

Since we need to estimate μ1 - μ2, we need the same sample size for both groups, so n1 = n2 = 96.

Therefore, we need a sample size of 96 for each group to estimate μ1 - μ2 with a sampling error of 3.2 and 95% confidence, given that σ1 = 15 and σ2 = 17.

b) For a 99% confidence interval and a sampling error of 8, the formula for the margin of error is still:

ME = z* (σ/√n)

where z* is the z-score corresponding to a 99% confidence level, σ is the common standard deviation (assumed to be the same for both populations), and n is the sample size for each group.

Since the range of each population is 60, the standard deviation of each population can be estimated as:

σ = range / (2 × z*)

where z* is the z-score corresponding to a 99% confidence level, which is 2.58.

Substituting σ = 60 / (2 × 2.58) = 11.56, ME = 8, and z* = 2.58 into the formula for the margin of error, we get:

8 = 2.58 × (11.56 / √n)

Solving for n, we get:

n = ((2.58 × 11.56) / (8 / √n))²

Simplifying and solving for n, we get:

n = 405.62

Since we need the same sample size for both groups, we need n1 = n2 = 405.

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The delivery radius for a pizza restaurant in a town with a population density of 1200 people per square mile that wants to deliver to approximately 25,000 people is 2.6 miles.

To calculate the delivery radius, we can use the following formula:

Delivery radius = square root(population / density)

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In this case, the population is 25,000 and the density is 1200 people per square mile. So, the delivery radius is:

Delivery radius = square root(25,000 / 1200) = 2.6 miles

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This means that the pizza restaurant can deliver to approximately 25,000 people within a 2.6 mile radius of its location.

Here is another way to think about it. If we imagine a circle with a radius of 2.6 miles, then the area of that circle will be approximately 25,000 square miles. This means that the pizza restaurant can deliver to approximately 25,000 people within that circle.

It is important to note that this is just an estimate. The actual delivery radius may be slightly different depending on the terrain, traffic conditions, and other factors.

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Seraphina's speed has increased by a factor of around 23% compared to the first hour.

What Is a Change in Percentage?

The ratio of the difference in the amount to its starting value multiplied by 100 is known as the percentage change. When a number's final value is determined by increasing or decreasing a percentage of its starting value, the percentage change of that quantity will always change.

How can you determine the percentage to the closest tenth?

Rounding to the closest tenth entails adding one integer after the decimal point. The number in the thousandths place, or the second number from the right of the decimal, must be considered while rounding. If the amount is five or more, we add one percent to the number in the tenth position.

Percent Change Formula = \(\frac{ (Final value -Initial value)}{ (Initial value)}\)× 100

Percent Change               = \(\frac{(74-60)}{60}\)× 100

…                                     = \(\frac{14}{60}\) × 100

...                                     ≈ 0.23333 × 100

Percent Change             ≈ 23.33%

The pace of Seraphina increased by around 23% in the second hour compared to the first.

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Answer:

(1,5) is the answer

The quadratic expression can be factorized to:

x*(x - 6)

Here we have the expression:

x^2 - 6x

To factorize this, first, we need to find the roots, which are the solutions of:

x^2 - 6x = 0

Notice that one of the solutions is trivial, and it is x = 0.

If now we assume that x ≠ 0 and divide both sides by x, we get:

x - 6 = 0

x = 6

That is the other solution.

Now, for a square polynomial with the roots a and b, the factorized form is:

(x - a)*(x - b)

In this case, the roots are 0 and 6, then:

x^2 - 6x = (x - 0)*(x - 6) = x*(x - 6)

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Answer:

-----------------------

Let Anita be x now.

Her mother is 5 times older and in two years time she will be 5x + 2.

Rita is half the age of Anita and in two years time she will be (x/2) + 2.

The sum of ages after two years will be 58:

Anita is 8 years old.