Write an equation describing the relationship of the given variables.

y varies directly as the fourth power of x and when x=3, y=243.

Answer:

23 to 42

23:42

[tex]\frac{23}{42}[/tex]

Answer:

The common difference is -12

Step-by-step explanation:

Finding the common difference:

11, - 1, - 13, - 25, . . .

The difference between the first and second terms

-1 -11 = -12

The difference between the second and third terms

-13 - -1 = -13 + 1 = -12

The common difference is -12

The rate of inflation for potatoes was 21%, for oranges it was 40%, and for ground beef it was 67%.

The idea of rate is used in mathematics to describe how one quantity changes in relation to another. It is frequently expressed as a fraction or ratio and is a measurement of how quickly one thing is changing in relation to another.

For instance, velocity is the measure of how quickly a position changes in relation to time. Acceleration is the measure of how quickly a velocity changes with relation to time. The derivative of a function, which denotes the instantaneous rate of change at a specific location, is the rate of change of any function with regard to its independent variable.

The rate of inflation for each item can be calculated using the formula:

r = (P2/P1)¹/ⁿ - 1

where P1 is the price per pound in 2009 and P2 is the price per pound in the given year, and n is the number of years between the two prices (in this case, n = 1 year).

For Potatoes:

P1 = $0.620

P2 = $0.749

n = 1

r = (0.749/0.620)¹/¹ - 1 = 0.21 or 21%

For Oranges:

P1 = $0.910

P2 = $1.280

n = 1

r = (1.280/0.910)¹/¹ - 1 = 0.40 or 40%

For Ground beef:

P1 = $2.251

P2 = $3.775

n = 1

r = (3.775/2.251)¹/¹ - 1 = 0.67 or 67%

So, the rate of inflation for potatoes was 21%, for oranges it was 40%, and for ground beef it was 67%.

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Oh yeah definitely, two lines don't have to be parallel or intersect. There are many examples. I'll give you one. Imagine two lines right now, one is flat horizontal, 180 degrees. Another line is above the horizontal line, at like 30 degrees. But they do not touch. So therefore, these lines are neither parallel or intersecting. The answer is true.

Answer: divide $39857

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The statement isn't true because when you multiply or divide different signs the answer is always negative.

Both B and C are false.

Answer:

Below

Step-by-step explanation:

From 11:57 to 12:00 is 3 min    then add 49 min to get to 12:49 then add the 15 min late =   3 + 49 + 15 = 67 MIN    or    1hr 7 min

Answer:

Check the image for the answer!

Step-by-step explanation:

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The correlation between age and price is -0.94. It indicates a strong negative correlation. Hence, as the age increases the price of the car decreases.

A procedure for determining the connections between two variables is referred to as correlation. You discovered that plotting two variables on a "scatter plot" can help you determine whether or not they are generally connected. Correlation is the most widely applied strategy even though there are other measures of association for variables measured at the ordinal or higher level of measurement.

The data was collected in 2005. So, to obtain the age we subtract the data collection year from the make year:

Age (x): 1,1, 3,3,4,4,5,5,5,5,6,7,10

Now, the array of price given is:

Price (y): 26900,23000,17500,18999,17200,18995,13900,15250,13200,11000,13900,8350,5800.

Using the correlation equation in excel sheet we see that the correlation coefficient between the age and the price is: - 0.94.

-0.94 indicates a strong negative correlation. Hence, as the age increases the price of the car decreases.

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The amount of solar radiation available is 415.4 W/m² and the albedo was higher during the last glacial maximum than it is today because there was more ice and snow on the planet.

Radiation refers to the emission and transmission of energy through space or a material medium in the form of electromagnetic waves or energetic particles. Radiation can take many forms, including light, X-rays, and radio waves, and can be either ionizing (having enough energy to remove electrons from atoms and molecules) or non-ionizing (having insufficient energy to cause ionization). Radiation is a fundamental aspect of physics and plays a crucial role in many natural processes, such as nuclear reactions and the warming of the Earth by the sun.

a) The amount of solar radiation available to warm the average square meter on Earth during the last glacial maximum can be found by multiplying the solar constant by the average albedo:

En = 1363 W/m² * 0.305 = 415.4 W/m²

b) The albedo was higher during the last glacial maximum than it is today because there was more ice and snow on the planet. Ice and snow are very reflective and therefore have a high albedo, which means that they reflect more of the incoming solar radiation back into space, making the planet cooler. During the last glacial maximum, there was more ice and snow, which led to a higher average albedo and a cooler planet.

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The solutions to the equations are

a) The percentage of quokkas that weigh over 15.5 pounds is 2.1 %

b) The percentage of quokkas that weigh uncer 11.9 pounds is 75.9 %

c) Percentage of quokkas that weigh between 15.5 and 11.9 pounds 22.0 %

The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.

The Z-score is calculated using the formula:

z = (x - μ)/σ

where z: standard score

x: observed value

μ: mean of the sample

σ: standard deviation of the sample

Given data ,

The weights of the quokkas are described by the normal model as

N ( 10 , 2.7 )

So , the mean μ = 10

And , the standard deviation σ = 2.7

a)

The percentage of quokkas that weigh over 15.5 pounds is given by the equation P ( x > 15.5 )

On simplifying the equation , we get

From the z-score formula ,

P ( z > ( 15.5 - 10 ) / 2.7 )

P ( z > 2.037 ) = 0.020825

0.020825 = 2.0825 %

Hence , the percentage of quokkas that weigh over 15.5 pounds is 2.1 %

b)

The percentage of quokkas that weigh uncer 11.9 pounds is  given by the equation P ( x < 11.9 )

On simplifying the equation , we get

From the z-score formula ,

P ( z < ( 11.9 - 10 ) / 2.7 )

P ( z < 0.7037 ) = 0.020825

0.75919 = 75.919 %

Hence , the percentage of quokkas that weigh uncer 11.9 pounds is 75.9 %

c)

Percentage of quokkas that weigh between 15.5 and 11.9 pounds is

P ( 11.9 < x < 15.5 )

On simplifying the equation , we get

From the z-score formula ,

P ( 11.9 < x < 15.5 ) = 1 - P ( x < 11.9 ) - P ( x > 15.5 )

P ( 11.9 < x < 15.5 ) = 1 - 0.020825 - 0.75919

P ( 11.9 < x < 15.5 ) = 0.219985

P ( 11.9 < x < 15.5 ) = 22.0 %

Hence , the equations are solved using z-score

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Answer:

48 minutes

Step-by-step explanation:

Why did the ant cross the road?

Speed of ant = 7 inches per minute
Width of road = 28 feet

28 feet = 28 x 12 inches = 336 inches

At 7 inches per minute, to cross 336 inches , it would take 336/7 or 48 minutes

Kerys should substitute the values of k from 0 to 4 (inclusive) in the binomial theorem expression to expand the binomial (2x + y)⁴.

The binomial theorem states the principle for expanding the algebraic expression (x + y)ⁿ and describes it as the total of the phrases involving the unique exponents of the x and y variables. Each word in a binomial expansion has a coefficient, which is a numerical value.

here, we have,

The binomial theorem states that the expansion of the binomial (x+y)^n is given by the formula:

(x+y)n = ∑nk=0nCk xn-kyk = ∑nk=0nCk xkyn-k

The variable n represents the power to which the binomial is raised, in this case n = 4.

The variable k is the exponent of the second term in the binomial (b), in this case y.

So, with k = 0, the term will be aⁿ = (2x)⁴, with k = 1, the term will be

a^(n-1) *b = (2x)³y , and so on.

Therefore, he should substitute the values of k from 0 to 4 (inclusive) in the binomial theorem expression to expand the binomial (2x + y)⁴.

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Answer: Given the two equations x + y = 8 and x^2 + y^2 = 80, we can use the first equation to solve for x or y and substitute that expression into the second equation.

Let's solve for y:

y = 8 - x

Now we can substitute this expression for y into the second equation:

x^2 + (8 - x)^2 = 80

Expanding the square and collecting terms gives:

x^2 + 64 - 16x + x^2 = 80

Combining like terms:

2x^2 - 16x + 16 = 80

Moving all terms to the left side:

2x^2 - 16x - 64 = 0

Using the quadratic formula, we can solve for x:

x = (-b ± √(b^2 - 4ac)) / (2a)

where a = 2, b = -16, and c = -64

x = (-(-16) ± √((-16)^2 - 4 * 2 * -64)) / (2 * 2)

x = (16 ± √(256 + 512)) / 4

x = (16 ± √768) / 4

x = (16 ± 8√6) / 4

Since x and y must be real numbers, we reject the negative square root. Therefore, x = (16 + 8√6) / 4.

Finally, substituting x into the first equation to find y:

y = 8 - x = 8 - (16 + 8√6) / 4 = (8 - 16) / 4 - 8√6 / 4 = -8 / 4 - 8√6 / 4 = -2 - 2√6.

Therefore, xy = x * y = (16 + 8√6) / 4 * (-2 - 2√6) = -16 - 16√6.

The answer is d. -16.

Step-by-step explanation:

In the triangle where G is the incenter of AABC, GT = 7, m>BAG = 120.

An incenter is a position within a triangle where the triangle's three angle bisectors connect. The lines that divide the angles in a triangle into two equal pieces are known as angle bisectors. The incenter is equidistant from the triangle's three sides, which means that the distance from the incenter to each side is the same. The incenter is also the core of the inscribed circle of the triangle, which is the greatest circle that can fit within the triangle. The incenter is a crucial point in trigonometry and geometry because it may be used to compute angles, sides, and other triangle features.

Given:

AABC, AC; GR = 7, and m<BAC = 60

Step 1: Since the angle bisector of any angle in a triangle divides that angle into two equal parts, m<BAC = 60 implies m<BAG = 120.

Step 2: Since the incenter of a triangle is equidistant from the three sides, GR = 7 implies GT = 7.

Therefore, GT = 7 and m>BAG = 120.

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Answer:

63, 69, 75, 81

Step-by-step explanation:

to find the first 4 terms substitute n = 1, 2, 3, 4 into the explicit rule.

a₁ = 63 + (1 - 1) × 6 = 63 + 0 × 6 = 63 + 0 = 63

a₂ = 63 + (2 - 1) × 6 = 63 + 1 × 6 = 63 + 6 = 69

a₃ = 63 + (3 - 1) × 6 = 63 + 2 × 6 = 63 + 12 = 75

a₄ = 63 + (4 - 1) × 6 = 63 + 3 × 6 = 63 + 18 = 81

the first four terms are 63, 69, 75, 81

For the equation [tex]8^{2x-y} = 5^{x-y+8}[/tex], the value for sum of integers x and y is option A: 24.

What is integer?

The Latin term "Integer," which implies entire or intact, is where the word "integer" first appeared. Zero, positive numbers, and negative numbers make up the particular set of numbers known as integers.

The given equation is [tex]8^{2x-y} = 5^{x-y+8}[/tex].

The first step is to make the base same-

Multiply the left-hand side with 5 and right-hand side with 8.

[tex]5(8)^{2x-y} = 8(5)^{x-y+8}\\40^{2x-y} = 40^{x-y+8}[/tex]

Since, the bases are same, the power values can be taken into consideration -

2x - y = x - y + 8

Collect the like terms -

2x - x = - y + y + 8

x = 8

Substitute the value of x in any one side of the equation -

2x - y = 0

2(8) - y = 0

16 - y = 0

-y = -16

y = 16

So, now the value of expression x + y is -

8 + 16 = 24

Therefore, the final value is obtained as 24.

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The depreciable cost,

$1,800,000

The straight-line rate,

5%

The annual straight-line depreciation,

90,000

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

If a building acquired the beginning of the year at a cost of 2,200,000 has an estimated residual value of 400,000 and an estimated useful life of 20 years.

The depreciable cost,

= cost - residual value

= 2,200,000 - 400,000

= $1,800,000

The straight-line rate,

=100/20

= 5%

The annual straight-line depreciation,

= 1,800,000 x 5/100

= 90,000

Therefore, all the required values are given above.

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Answer:

To find out how many packs of cardinal flower seeds you bought, you need to divide the total amount you spent ($36) by the cost per pack ($4).

$36 ÷ $4 = 9

Therefore, you bought 9 packs of cardinal flower seeds.

A pack of cardinal flower seeds costs $4. You spend $36 on seeds. The correct answer is 9.

Cardinals love sunflower seeds, particularly black oil sunflower seeds. Their thin shells are quite easy for cardinals to break. These songbirds can also eat hulled and heavier-shelled striped sunflower seeds due to their sturdy beaks.

So, if we spend $36 on seeds. we are going to use 36 and 4 to find are answer:

→ 36/4

→ = 9

Therefore, A pack of cardinal flower seeds costs $4. You spend $36 on seeds. The correct answer is 9.

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Answer:

m+1p4 =mp5

1p4= mp5-m

m=p5

Answer:

The answer is 313° degrees.

Tracie net pay is,

⇒ $1,967.1

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Tracie works for a salary of $2,666 per month.

Here, She has federal income tax withheld at the rate of 15%

Hence, The amount for federal income tax is,

⇒ 15% of $2666

⇒ 15/100 × 2,666

⇒ $399.9

And, Social Security tax at the rate of 6.2%

Hence, The amount for Social Security tax is,

⇒ 6.2% of 2,666

⇒6.2/100 × 2666

⇒ $165.3

And, Medicare tax at the rate of 1.45%.

Hence, The amount of Medicare is,

⇒ 1.45% of $2,666

⇒ 1.45/100 × 2,666

⇒ $38.7

And, She have health insurance premiums of $95 per month.

Thus, The net pay is,

⇒ $2,666 - ($95 + $38.7 + $165.3 + $399.9)

⇒ $1,967.1

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Answer:

2

Step-by-step explanation:

the degree of polynomial is 2

The expected number of times the sequence "proof" appears in a randomly generated string of 1,000,004 letters is approximately 36.

The expected number of times the sequence "proof" appears in a randomly generated string of n = 1,000,004 letters can be calculated using the formula:

expected_occurrences = (n - 4) / 26^4

where 26^4 is the number of possible 4-letter sequences that can be formed using a 26-letter keyboard. Plugging in n = 1,000,004, we get:

expected_occurrences = (1,000,004 - 4) / 26^4

                 ≈ 36.08

So, the expected number of times the sequence "proof" appears in a randomly generated string of 1,000,004 letters is approximately 36.

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If 6 is an element in the domain of f(x) = (8x - 16)/2, the corresponding element in the range include the following: [16].

In Mathematics, a domain is the set of all real numbers for which a particular function is defined.

In Mathematics, a range can be defined as the set of all real numbers that connects with the elements of a domain.

Based on the information provided, we have the following function rule:

Function, f(x) = y = (8x - 16)/2

When the domain x = 6, the range (y) of this function is given by;

Range, y = (8(6) - 16)/2

Range, y = (48 - 16)/2

Range, y = 32/2

Range, y = 16.

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Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup

To determine how much water Ella should add to make a specific concentration of syrup, you need to use the formula:

Syrup Concentration = (Mass of Sugar) / (Mass of Sugar + Mass of Water)

50% syrup: In this case, the syrup concentration is 0.50, so you can use the formula as follows:

0.50 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.5 - 0.5 lbs of sugar

Mass of Water = 0.5 lbs

The total amount of syrup will be 0.5 lbs of sugar + 0.5 lbs of water = 1.0 lbs

5% syrup: In this case, the syrup concentration is 0.05, so you can use the formula as follows:

0.05 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.05 - 0.5 lbs of sugar

Mass of Water = 9 lbs

The total amount of syrup will be 0.5 lbs of sugar + 9 lbs of water = 9.5 lbs

75% syrup: In this case, the syrup concentration is 0.75, so you can use the formula as follows:

0.75 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.75 - 0.5 lbs of sugar

Mass of Water = 0.33 lbs

The total amount of syrup will be 0.5 lbs of sugar + 0.33 lbs of water = 0.83 lbs

1.5% syrup: In this case, the syrup concentration is 0.015, so you can use the formula as follows:

0.015 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.015 - 0.5 lbs of sugar

Mass of Water = 33 lbs

The total amount of syrup will be 0.5 lbs of sugar + 33 lbs of water = 33.5 lbs

So, to summarize, Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup.

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Answer:

Step-by-step explanation:

Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup

Calculatng  lbs of  syrup

To determine how much water Ella should add to make a specific concentration of syrup, you need to use the formula:

Syrup Concentration = (Mass of Sugar) / (Mass of Sugar + Mass of Water)

50% syrup: In this case, the syrup concentration is 0.50, so you can use the formula as follows:

0.50 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.5 - 0.5 lbs of sugar

Mass of Water = 0.5 lbs

The total amount of syrup will be 0.5 lbs of sugar + 0.5 lbs of water = 1.0 lbs

5% syrup: In this case, the syrup concentration is 0.05, so you can use the formula as follows:

0.05 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.05 - 0.5 lbs of sugar

Mass of Water = 9 lbs

The total amount of syrup will be 0.5 lbs of sugar + 9 lbs of water = 9.5 lbs

75% syrup: In this case, the syrup concentration is 0.75, so you can use the formula as follows:

0.75 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.75 - 0.5 lbs of sugar

Mass of Water = 0.33 lbs

The total amount of syrup will be 0.5 lbs of sugar + 0.33 lbs of water = 0.83 lbs

1.5% syrup: In this case, the syrup concentration is 0.015, so you can use the formula as follows:

0.015 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)

Rearranging the formula, we get:

Mass of Water = (0.5 lbs of sugar) / 0.015 - 0.5 lbs of sugar

Mass of Water = 33 lbs

The total amount of syrup will be 0.5 lbs of sugar + 33 lbs of water = 33.5 lbs

So, to summarize, Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup.

If the population of a town increased from 3200 in 2008 to 5700 in 2009, the absolute and relative (percent) increases are:

What is the difference between absolute and relative increases?

Absolute increase refers to a numerical addition to the quantity of an item.  

The absolute increase is the difference between the current value and the initial value.

On the other hand, the relative increase is expressed in percentage terms.

To compute the relative increase, divide the absolute increase by the initial value.

The population of the town in 2008 = 3,200

The population in 2009 = 5,700

The absolute increase in population = 2,500 (5,700 - 3,200)

The relative increase in population = 78.125% (2,500/3,200 x 100)

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