decide which of the two given functions is linear and find its equation.x=0,1,2,3,4f(x)=6,10,14,18,22g(x)=8,10,12,16,22

Answer:

x(y/2 + z)

Step-by-step explanation:

There are two triangles here.

The small triangle which is bound by dotted lines has base = y and height = x

The height of the larger triangle is 2x and its base is y + z

Area of larger triangle = 1/2 ·  2x · (y + z)
= x(y + z) = xy + xz

Area of smaller triangle = 1/2 · x · y = xy/2

Shaded region area = Area of larger triangle - area of smaller triangle

= xy + xz - xy/2

= xy/2 + xz

= x(y/2 + z)

The Cumulative Distribution Function (CDF) can be used to find the probability of a continuous random variable that is uniformly distributed between 3 and 8.

The formula for the CDF is F(x) = (x-a)/(b-a) where a is the lower bound of the distribution and b is the upper bound of the distribution. In this case, a = 3 and b = 8. Therefore, the CDF equation is F(x) = (x-3)/(8-3). The Cumulative Distribution Function (CDF) can be used to find the probability of a continuous random variable that is uniformly distributed between 3 and 8.As an example, let's find the probability of x being less than or equal to 5. The CDF equation would be F(5) = (5-3)/(8-3) = 2/5. Therefore, the probability of x being less than or equal to 5 is 2/5.

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Answer:

The equation 3x^2 - bx = 0 can be factored into two linear factors as follows:

x (3x - b) = 0

So either x = 0 or 3x - b = 0, which gives x = b/3.

Therefore, the solutions to the equation 3x^2 - bx = 0 are x = 0 or x = b/3.

Answer:

see the attachment photo!

Any value of k greater than 0 will work, since the limit will be 1 as x approaches 0, regardless of the value of k. Other values of k can also work.

The limit in question is 3*_4limX-0 ekx+1. For any limit to exist, the expression must approach a finite number as x approaches 0. In this case, that number is 1. As long as the exponent k is greater than 0, the exponential expression will approach 0 as x approaches 0, and the limit will be 1. Therefore, any value of k greater than 0 will work. It is worth noting, however, that other values of k can also work. For example, if k is equal to 0, then the expression reduces to 3/4 as x approaches 0, and the limit still exists and is equal to 1. Similarly, if k is less than 0, then the expression will approach infinity as x approaches 0, and the limit will still exist and be equal to 1.

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The proportional relationship that best represent the machine labeling y cans in x minutes is given as follows:

y = 400x.

A proportional relationship is defined as follows:

y = kx.

In which k is the constant of proportionality.

A machine can label 4,000 cans in 10 minutes, hence the constant is given as follows:

k = 4000/10

k = 400.

Hence the proportional relationship that best represent the machine labeling y cans in x minutes is given as follows:

y = 400x.

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The required chance that the digits can form the number 510 is 6/1000, or approximately 0.006, or 0.6%.

The number of possible arrangements for a given set is calculated mathematically, and this process is known as permutation. Simply said, a permutation is a term that refers to the variety of possible arrangements or orders. The arrangement's order is important when using permutations.

The chance that the digits drawn can form the number 510 is given by the probability of drawing the digits 5, 1, and 0 in that order or in some rearrangement of the order.

There are 3! = 6 ways to arrange the digits 5, 1, and 0, and there are 10^3 = 1000 total possible outcomes when the random number generator is run three times.

So, the chance that the digits can form the number 510 is 6/1000, or approximately 0.006, or 0.6%.

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The (A) mean is the least acceptable metric of central tendency for data collection with outliers.

There are various mean types in mathematics, particularly in statistics.

Each mean helps to summarize a certain set of data, frequently to help determine the overall significance of a specific data set.

In mathematics, the mean is the average of a set of data, which is calculated by adding all the numbers together and then dividing the result by the total number of numbers.

For instance, the mean for the collection of values 8, 9, 5, 6, and 7 is 7, since 8 + 9 + 5 + 6 + 7 = 35, and 35/5 = 7.

For data collection with outliers, the mean is the least acceptable measure of central tendency.

Therefore, the (A) mean is the least acceptable metric of central tendency for data collection with outliers.

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The area of triangle FGH is given as follows:

15.05 units².

The area of a triangle is given by half the multiplication of the base length by the height.

The base length is given by the distance between points F and G, hence:

b = sqrt((-2 - (-4))² + (6 - 1)²)

b = 5.385.

The coordinates of the midpoint of segment FG are given as follows:

The distance between the midpoint and vertex H is the height, given as follows:

h = sqrt((-3 - 2)² + (3.5 - 6)²)

h = 5.59.

Hence the area of the triangle is given as follows:

A = 0.5 x 5.385 x 5.59

A = 15.05 units².

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The answers for demand function are a) p(x) = -0.0006q + 15 and b) the price at which the demand will reach 20000 units put q = 20000, is $3

A demand function is a mathematical equation which expresses the demand for a product or service as a function of its price.

Given that, the demand function for a certain product is known to be linear.

When the price of the product is $12, the number of units sold is 5000.

But if the price of the product is $9, the number of units sold is 10000.

We need to find the demand function, expressed as price p in terms of quantity q and the price at which the demand will reach 20000 units.

a) P(x) can be calculated using point slope equation given:

Price is $12 for 5000 units sold. A decrease in price to $9 increases units sold to 10000.

Slope = Δ price / Δ units = 9-12 / 10000 - 5000

= -3 / 5000 = -0.0006

p(q) = m(q - x₁) + p₁

= -0.0006(q-5000) + 12

=  -0.0006q + 3 + 12

=  -0.0006q + 15

Therefore, the demand function is p(x) = -0.0006q + 15

b) To find the price at which the demand will reach 20000 units put q = 20000, put q = 20000

p(x) = -0.0006 × 20000 + 15

= -12 + 15

= 3

Therefore, the price at which the demand will reach 20000 units put q = 20000, is $3

Hence, the answers for demand function are a) p(x) = -0.0006q + 15 and b) the price at which the demand will reach 20000 units put q = 20000, is $3

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Answer:

[tex]240\pi cm^{2}[/tex]

Step-by-step explanation:

Lateral area of a cylinder is the curved surface area, (which connects the top with the base)

Curved Surface Area= [tex]2\pi rh[/tex]

where  r = radius of base

           h =  height of cylinder

Substituting the provided values:

Lateral area of cylinder = [tex]2\pi (6 cm)(20 cm)[/tex]

                                        = [tex]240\pi cm^{2}[/tex]

Answer:

The inverse tangent function, tan^-1, is continuous over its domain, which is the range of values from -π/2 to π/2. However, the function tan^-1 (xy^2/(x+y)) may not be continuous at all points in this domain, as the denominator (x + y) can be zero for some values of x and y.

Step-by-step explanation:

3268760 different samples of size 10 people are possible to be selected.

15818400 different license plates are possible.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant.

The combination formula aids in determining the number of possible combinations that may be created by selecting a portion of a bigger collection of objects.

We need the number of possible combinations of choosing 10 people out of 25 (any order). The 25 binomial coefficient, (10) gives the number. Possible number of combinations are:

²⁵C₁₀ =  25! / (25-10)!(10!)

²⁵C₁₀ = 3268760

We want 3 letters and 3 digits but the first digit can't be zero. There are 26 alphabets and 10 digits. Since repetition is allowed we can use any of the 26 alphabets in place of all 3 letters.

This gives us 26 x 26 x 26 = 26³ ways to choose the first three letters.

For digits, since the first digit can't be 0, we can choose the rest 9 digits. For the next two digits, we can choose any one digit from 10. This gives us 9 x 10 x 10 ways to choose digits.

Finally, by law of multiplication, the total number of ways of choosing license plates is :

number of license plates = 26³ × 9 × 100

= 15818400

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3268760 different samples of size 10 people are possible to be selected.

15818400 different license plates are possible.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant.

The combination formula aids in determining the number of possible combinations that may be created by selecting a portion of a bigger collection of objects.

We need the number of possible combinations of choosing 10 people out of 25 (any order). The 25 binomial coefficient, (10) gives the number. Possible number of combinations are:

²⁵C₁₀ =  25! / (25-10)!(10!)

²⁵C₁₀ = 3268760

We want 3 letters and 3 digits but the first digit can't be zero. There are 26 alphabets and 10 digits. Since repetition is allowed we can use any of the 26 alphabets in place of all 3 letters.

This gives us 26 x 26 x 26 = 26³ ways to choose the first three letters.

For digits, since the first digit can't be 0, we can choose the rest 9 digits. For the next two digits, we can choose any one digit from 10. This gives us 9 x 10 x 10 ways to choose digits.

Finally, by law of multiplication, the total number of ways of choosing license plates is :

number of license plates = 26³ × 9 × 100

= 15818400

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Answer:

$16,050.00

Step-by-step explanation:

10[(40 x 30) + (9 x 45)]  

In one week, he works 40 hours (8 x 5) for $30 and 9 hours of overtime each week (one extra hour 5 days during a week week plus 4 hours on Sat.)

10(1200 +405)

10(1605)

$16,050.00

To calculate the carpenter's earnings, separate the regular work hours from the overtime hours. Compute earnings for both from their respective rates and add them together. Multiply by the number of days worked and finally, by the total number of weeks.

In order to calculate the earnings of a carpenter during a 10-week period, we must consider how many hours were worked at regular and overtime rates. During the weekdays, the carpenter worked 9 hours per day. The first 8 hours were paid at the regular rate, and the remaining 1 hour was considered overtime. On Saturdays, the carpenter worked 4 hours at the regular rate as it didn't supersede the 8-hour workday.

So, on weekdays, he earned: 8 hours * $30 + 1 hour * $45. On Saturdays, his earnings were 4 hours * $30. To find the weekly earnings we add weekday and Saturday earnings, then multiply by 5 (for weekdays) and add 1 Saturday, then multiply the total earnings by 10 weeks. Using these computations, we are able to find the total amount earned by the carpenter.

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The measure of it's opposite angle is 135

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

The base angles equals 45

Using the above as a guide, we have the following:

Base angle + Opposite angle = 180

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

45 + Opposite angle = 180

Evaluate the like terms

Opposite angle = 135

Hence, the angle is 135 degrees

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Based on their contribution ratios, the amount each will get from the winnings is as follows:

A ratio shows the relative size of a variable, quantity, or value when compared to another.

Ratios are fractional values expressed as decimals, percentages, or fractions.

The cost of a ticket = R60

Contributions by:

Hanna = R15

Sarah = R21

Mthunzi = R24

Ratio = 5: 7: 8

Sum of ratios = 20 (5 + 7 + 8)

Hanna = R1,000 (5/20 x R4,000)

Sarah = R1,400 (7/20 x R4,000)

Mthunzi = R1,600 (8/20 x R4,000)

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Therefore , the solution of the given problem of test statistics comes out to be the p-value is 0.00052.

The Z-statistic, which demonstrates that the ordinary normal balanced hypothesis is true, has been used as the statistic for anything resembling a Z-test. Let's say you run two separate X-y tests with a 0.05 level of significance, and the results show that you got a 2.5 R t. (also referred as a Z-value). The p-value for this Z-value is 0.0124.

Here,

(a) State the null hypothesis [tex]H_{0}[/tex] and the alternative hypothesis H1.

The null hypothesis (H0) is that the population mean sodium level for healthy adults is equal to the textbook value of 141 Eq per liter of blood.

[tex]H_{0}[/tex]     : μ = 141

The alternative hypothesis (H1) is that the population mean sodium level for healthy adults differs from the textbook value.

H1: μ ≠ 141

(b) Determine the type of test statistic to use.

Since the sample size is greater than 30 and the population standard deviation is known, we can use a z-test to test the hypothesis.

(c) Find the value of the test statistic. (Round to three or more decimal places.)

The test statistic is calculated as:

z = (x'- μ) / (σ / √n)

Where x' is the sample mean, μ is the population mean under the null hypothesis, σ is the population standard deviation, and n is the sample size.

Substituting the given values, we get:

z = (149 - 141) / (13 / √21) = 3.464

Therefore, the value of the test statistic is 3.464.

(d) Find the p-value. (Round to three or more decimal places.)

Since this is a two-tailed test, we need to find the area under the normal curve beyond 3.464 in both directions. Using a standard normal table or calculator, we find that the area beyond 3.464 is 0.00026 in one direction. So, the p-value is:

p-value = 2 * 0.00026 = 0.00052

Therefore, the p-value is 0.00052.

(e) Can we conclude that the population mean adult sodium level differs from that given in the textbook?

Since the p-value (0.00052) is less than the level of significance (0.01), we can reject the null hypothesis and conclude that the population mean adult sodium level differs from that given in the textbook at the 0.01 level of significance.

Answer: Yes, we can conclude that the population mean adult sodium level

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The fraction of the jug filled is given by the equation A = 5/8 of the jug

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Given data ,

Let the fraction of the jug filled be represented as A

Now , the equation will be

The amount of paint poured initially = ( 2/3 ) gallons

The amount of jug filled initially = ( 1/4 ) of the jug

Now ,

The amount of jug filled for 1 gallon = ( 1/4 ) / ( 2/3 ) of the jug

On simplifying the equation , we get

The amount of jug filled for 1 gallon = ( 3/8 ) of the jug

And , an additional 1 gallon of paint is added

So , the new amount of paint = [ ( 2/3 ) + 1 ] = ( 5/3 ) gallons

And , the amount of jug filled for ( 5/3 ) gallons = ( 5/3 ) x amount of jug filled for 1 gallon

Substituting the values in the equation , we get

The amount of jug filled for ( 5/3 ) gallons A = ( 5/3 ) x ( 3/8 )

On simplifying the equation , we get

The amount of jug filled for ( 5/3 ) gallons A = ( 5/8 ) of the jug

The amount of jug filled for ( 5/3 ) gallons A = 0.625 of the jug = 62.5 %

Hence , the fraction is ( 5/8 ) of the jug

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The probability of getting exactly 7 heads when a fair coin is tossed 9 times is 0.164 to the nearest thousandth.

To calculate the probability of getting exactly 7 heads when a fair coin is tossed 9 times, we can use the binomial probability formula below:

P(X = k) = [tex]^nC_k * p^k * (1 - p)^{n - k}[/tex]

where;

p is the probability of success on a single trial = 0.5

n is the number of trials = 9

k is the number of desired successes = 7

Substituting:

P(X = 7) = ⁹C⁷ * (0.5)⁷ * (1 - 0.5)²

P(X = 7) ≈ 0.164

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The change in electric potential is approximately 135.19 volts if you move from coordinate (-8.03, -4.24) to coordinate (7.02, 2.60)

What is a coordinate point?

Coordinates are a pair of numbers that are used to determine the position of a point or a shape in a 2-dimensional plane. We define the position of a point on a 2D plane using two numbers, called the x-coordinate and the y-coordinate.

The change in electric potential (ΔV) can be calculated using the equation:

ΔV = -∫ E dl

where E is the electric field and dl is an infinitesimal displacement along the path. We need to find the path integral of the electric field between the two coordinates.

Since the electric field is in the x-y plane, we can use the two-dimensional version of the equation:

ΔV = -∫ E * dx - ∫ E * dy

where dx and dy are the changes in x and y, respectively.

We can calculate the change in x and y as follows:

dx = 7.02 m - (-8.03 m) = 7.02 m + 8.03 m = 15.05 m

dy = 2.60 m - (-4.24 m) = 2.60 m + 4.24 m = 6.84 m

Next, we'll use the electric field equation to find the components of the electric field in the x and y directions:

Ex = -3.67 N/C

Ey = -4.359 N/C

Finally, we can use these values to calculate the change in electric potential:

ΔV = -∫ E * dx - ∫ E * dy = -Ex * dx - Ey * dy = -(-3.67 N/C) * (15.05 m) - (-4.359 N/C) * (6.84 m)

Converting from joules to volts:

ΔV = ΔV / (1.602 * 10^-19 C)

ΔV = (3.67 N/C * 15.05 m + 4.359 N/C * 6.84 m) / (1.602 * 10^-19 C) = 135.19 Volts

Hence, the change in electric potential is approximately 135.19 volts.

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Answer:

B and C

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

Verify each statement.

A) 2⁻³ raised to the third power equals 1.

B) 2⁻³ is less than 1.

C) 2⁻³ is greater than 3⁻².

D) 2⁻³ multiplied by -1 equals 2³.

E) 2⁻³ is equal to -8.​

Answer:

Step-by-step explanation:

A productive approach to identifying a research topic and subsequent research question can involve utilizing multiple sources, including:

Literature review: Reviewing existing research in the field can help identify gaps in knowledge and areas that need further investigation.

Personal interests and experiences: Consider your own experiences, interests, and expertise to identify a topic that you are passionate about and can contribute to.

News articles and current events: Stay up-to-date on current events and identify topics that are relevant and pressing in your field.

Professional associations and organizations: These organizations often have conferences and publications that highlight current research trends and topics.

Government reports and data sources: These sources can provide data and information on a wide range of topics and can serve as a starting point for identifying a research question.

Ultimately, a combination of these sources can be useful in identifying a research topic and subsequent research question. It's important to consider the feasibility, importance, and originality of the research topic, and to choose a topic that you can research thoroughly and effectively.

Answer expressed in terms of pi: [tex]V=2304 \pi (m^{3})\\[/tex].

Answer rounded to the nearest whole number: [tex]V=7238(m^{3})[/tex].

Given figure: Sphere.

Given dimension: diameter (d)= 24m.

We're trying to calculate the volume of a sphere, here's the formula for that:

[tex]V=\frac{4}{3} \pi r^{3}[/tex]

There's something worth paying a bit extra ttention in this problem, and that is the fact that we were not given a value of radius (r) to use in the formula. Instead, we were given the diameter (d), which happens to be double of the radius, by definition. Hence, to find the radius we do the following:

[tex]d=2r\\\\ r=\frac{d}{2} =\frac{24m}{2} =12m[/tex]

Use the data in the volume formula:

[tex]V=\frac{4}{3} \pi (12m)^{3}[/tex]

[tex]V= \pi(\frac{4}{3} (12m)^{3})\\ \\V= \pi(2304m^{3} )\\ \\V=2304 \pi (m^{3})\\[/tex]

We were asked to express our answer in terms of pi. Therefore, let's isolate pi from the calculations for now:

[tex]V= \pi(\frac{4}{3} (12m)^{3})\\ \\V= \pi(2304m^{3} )\\ \\V=2304 \pi (m^{3})\\[/tex]

Answer expressed in terms of pi: [tex]V=2304 \pi (m^{3})\\[/tex].

The problem also asks to round to the nearest whole number. So, let's go ahead and calculate an approximate value and round it to the nearest whole number:

[tex]V=7238.229474 (m^{3})[/tex]

Since the first number after the dot (.) isn't 5 or greater, we may leave the whole part of the number as it is and delete the remaining decimal numbers.

Answer rounded to the nearest whole number: [tex]V=7238(m^{3})[/tex].

The more money will be earned for job B.

Subtraction can be done for any numbers or algebraic expressions. It is the process of taking out certain value from a given amount of number.

For Job A :

Salary = $51,000

Distance = 9 miles from home

Total distance needed to travel to and back from job in a day = 18 miles

Number of working days in a year = 260

Number of working days in a year after vacation = 260 - (12% × 260) = 228.8 days

Total distance for working days in a year = 228.8 × 18 = 4118.4 miles

Mileage on his car = 24 miles per gallon

Amount of gas for 24 miles = 1 gallon

Amount of gas for 4118.4 miles = 171.6 gallon

Gas price for 1 gallon = $5.25

Gas price for 171.6 gallon = 171.6 × $5.25 = $900.9

Net salary after gas price = $51,000 - $900.9 = $50,099.1

For Job B :

Salary = $53,000

Distance = 22 miles from home

Total distance needed to travel to and back from job in a day = 44 miles

Number of working days in a year after vacation = 260 - (8% × 260) = $239.2 days

Total distance for working days in a year = 239.2 × 44 =  10,524.8 miles

Mileage on his car = 24 miles per gallon

Amount of gas for 24 miles = 1 gallon

Amount of gas for 10,524.8 miles = 438.533 gallon

Gas price for 1 gallon = $5.25

Gas price for 171.6 gallon = 438.533 × $5.25 = $2302.3

Net salary after gas price = $53,000 - $2302.3 = $50,697.7

The net salary after gas price is higher for job B.

Hence Net salary after gas price is higher for job B.

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Answer:

12%

4.44 / 37

Step-by-step explanation:

Answer: 12%

Step-by-step explanation: 4.44 is 12% of 37.

To solve, use this example:

[tex]\frac{x}{100} = \frac{4.44}{37}[/tex]

First, divide the part percent by the whole percent. That'd be 4.44 / 37 which is 0.12. Now, we need to multiply 100 by 0.12 is 12. So, 4.44 is 12% of 37. I hope this helped!

The insects population expected after 4 months is 414.

An equation is an expression that contains numbers and variables linked together by mathematical operations of addition, subtraction, multiplication, division and exponents. An equation can either  be linear, quadratic, cubic, depending of the degree of the variable.

The standard form of an exponential function is:

y = abˣ

where a is the initial value and b is the multiplication factor.

An entomologist expects an insect population to increase by about 20% each month from may 1 to September 1.

Let us assume that the population of insect on May first was 200. If y represent the population of insects x months after May 1, hence:

y = 200(1.2)ˣ

At September 1; after 4 months:

y = 200(1.2)⁴ = 414

The insects population after 4 months is 414.

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Answer:

15

Step-by-step explanation:

5*3 = 15