Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices. Josiah’s Music Sample 1 Sample 2 R & B 5 R & B 4 Pop 4 Pop 3 Classical 3 Classical 5 Jazz 2 Jazz 4 Rock 6 Rock 4 Josiah’s work: StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5. He did not multiply the numerator and denominator by the correct number to equal 1,500. His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion. He can only solve the proportion by multiplying the numerator and denominator by a common multiple. He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500.

The two points with an x-coordinate of 2 and a distance of 5 from (-2, -4) are: (2, -4 + 2√13) and (2, -4 - 2√13)

What is distance formula?

Distance is a measurement of how far away two things or locations are, either numerically or occasionally qualitatively.

Distance formula: [tex]distance = \sqrt{((x2 - x1)^2 + (y2 - y1)^2)}[/tex]

We can solve this problem using the distance formula, which gives us the distance between two points in a plane:

[tex]distance = \sqrt{((x2 - x1)^2 + (y2 - y1)^2)}[/tex]

Let (x, y) be a point with an x-coordinate of 2. Then we can write the distance from (-2, -4) to (x, y) as:

[tex]distance = \sqrt{((x - (-2))^2 + (y - (-4))^2)}[/tex]

Simplifying this expression, we get:

[tex]distance = \sqrt{((x + 2)^2 + (y + 4)^2)}[/tex]

We know that the distance between (-2, -4) and (x, y) is 5. Therefore, we can write:

[tex]\sqrt{((x + 2)^2 + (y + 4)^2)} = 5[/tex]

Squaring both sides, we get:

[tex](x + 2)^2 + (y + 4)^2 = 25[/tex]

Expanding the left side, we get:

[tex]x^2 + 4x + 4 + y^2 + 8y + 16 = 25[/tex]

Simplifying this expression, we get:

[tex]x^2 + 4x + y^2 + 8y - 5 = 0[/tex]

To find all points with an x-coordinate of 2 that satisfy this equation, we can substitute x = 2 and simplify the resulting equation:

[tex]2^2 + 4(2) + y^2 + 8y - 5 = 0[/tex]

Simplifying this equation, we get:

[tex]y^2 + 8y + 3 = 0[/tex]

We can solve this quadratic equation using the quadratic formula:

y = (-b ± sqrt(b^2 - 4ac)) / 2a

where a = 1, b = 8, and c = 3.

Plugging in these values, we get:

y = (-8 ± sqrt(8^2 - 4(1)(3))) / 2(1)

Simplifying this expression, we get:

y = (-8 ± √52) / 2

y = (-8 ± 2√13) / 2

y = -4 ± √13

Therefore, the two points with an x-coordinate of 2 and a distance of 5 from (-2, -4) are: (2, -4 + 2√13) and (2, -4 - 2√13)

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Hence the value of x from the given diagram is 4.5

The relationship between the height on the hypotenuse of a right triangle and the two line segments it generates on the hypotenuse is described by the right triangle altitude theorem, also known as the geometric mean theorem, which is a consequence of elementary geometry.

From the diagram shown:

6/8 = x/6

Cross multiply

6*6 = 8x

36 = 8x

x = 36/8

x = 4.5

Hence the value of x from the diagram is 4.5

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The amount of depreciation to be recorded for year 2 using the straight-line method of calculating depreciation is $6,750.

Straight-line depreciation is calculated by dividing a fixed asset's depreciable base by its useful life. The depreciable base is the difference between an asset's all-in costs and the estimated salvage value at the end of its useful life.

By using the straight-line method of calculating depreciation, the annual depreciation expense would be calculated as follows:

= (Purchase Price - Salvage Value) / Useful Life

= ($60,000 - $6,000) / 8 years

= $54,000 / 8 years

= $6,750.

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Using arithmetic operation, the value for time spent on country driving is obtained as 25/44 hour.

What is arithmetic operation?

A subject of mathematics known as arithmetic operations deals with the study and use of numbers in all other branches of mathematics. Basic operations including addition, subtraction, multiplication, and division are included.

Jorge's drive was 3/4 hour, and 2/11 hour of that time was spent on city driving.

To find the time spent on country driving, we can use arithmetic operation of subtraction.

Subtract the time spent on city driving from the total driving time -

Time spent on country driving = Total driving time - Time spent on city driving

= 3/4 hour - 2/11 hour

To subtract these fractions, we need a common denominator.

The smallest number that 4 and 11 both divide into is 44 -

3/4 = 33/44

2/11 = 8/44

So -

Time spent on country driving = 33/44 hour - 8/44 hour

= (33 - 8)/44 hour

= 25/44 hour

Therefore, Jorge spent 25/44 hour driving on country roads.

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Answer:

When the ball hits the ground, its height will be 0 meters. Therefore, we need to solve the equation:

h(t) = 0

8t - 5t^2 + 4 = 0

We can solve this quadratic equation by factoring or by using the quadratic formula, but in this case, it's easier to use factoring:

(5t - 4)(t - 1) = 0

From this equation, we can see that either 5t - 4 = 0 or t - 1 = 0. Solving for t in each case, we get:

5t - 4 = 0 ==> t = 0.8 seconds

t - 1 = 0 ==> t = 1 second

Therefore, the ball will reach the ground after either 0.8 seconds or 1 second, depending on the initial height of the ball.

From the given options, option 1 depicts a decreasing function. Hence, option 1 is the correct answer for the graph.

Calculus uses a function's derivative to determine whether a function is rising or decreasing at various intervals in a specific domain. Given a given function, y = F(x), the function is known as an increasing function if the value of y increases as the value of x increases, and the function is known as a decreasing function if the value of y decreases as the value of x increases.

We observe that the function of f approaches to 0 as it moves towards infinity. Thus, it is a decreasing function.

From the given options, option 1 depicts a decreasing function. Hence, option 1 is the correct answer.

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Answer:

15£

Step-by-step explanation:

if 1£=2$

then30$=30/2

15£

Answer:

To solve this problem, we can use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.

In this case, we can consider the distance from home to Best Buy as the hypotenuse, and the distance traveled west and south as the other two sides.

Let's call the distance from home to Best Buy "x". Then, using the Pythagorean theorem:

x^2 = (distance south)^2 + (distance west)^2

We know that the distance west is 5 miles, and the distance home is 25 miles. We don't know the distance south, so let's call that "y".

Then we have:

x^2 = y^2 + 5^2

25^2 = y^2 + 5^2

Solving for y, we get:

y^2 = 25^2 - 5^2

y^2 = 600

y = sqrt(600)

y = 24.49 (rounded to two decimal places)

Now we can plug in y to find x:

x^2 = y^2 + 5^2

x^2 = 24.49^2 + 5^2

x^2 = 625.12

x = sqrt(625.12)

x = 25.00 (rounded to two decimal places)

Therefore, the distance from home to Best Buy is approximately 25 miles.

Step-by-step explanation:

The optimal strategy would be to fit several models to the data using equation mathematical software or tools, and then assess the goodness of fit using statistical metrics like R-squared or Mean Squared Error.

In a mathematical equation, the equals sign (=), which connects two claims and denotes equality, is utilized. In algebra, an equation is a mathematical statement that proves the equality of two mathematical expressions. For instance, in the equation 3x + 5 = 14, the equal sign separates the numbers by a space. Mathematical expressions can be used to describe the relationship between the two sentences on either side of a letter. The logo and the particular piece of software frequently correspond. like, for instance, 2x - 4 = 2.

The following exponential model could be a good fit for the data in the image:

[tex]f(x) = 7.5 * e^(0.1x) (0.1x)[/tex]

The data is assumed to develop exponentially with a base of e in this model, with a growth rate of 10% for each unit increase in x.

It is crucial to remember that this is only one potential model and that other exponential models with other parameters could also be able to satisfactorily match the data. The optimal strategy would be to fit several models to the data using mathematical software or tools, and then assess the goodness of fit using statistical metrics like R-squared or Mean Squared Error.

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The correct ordered pair for the data is (1, 2), (2, 4), (3, 6), and (4, 8). The correct option is A.

An ordered pair in mathematics is a set of two things. The order of the objects in the pair matters because, unless a = b, the ordered pair differs from the ordered pair. Ordered pairs are also known as 2-tuples or 2-length sequences.

Number of Boxes of Popcorn     Cost ($)

1                                                          2

2                                                         4

3                                                         6  

4                                                         8  

The ordered pair of the data is,

(1, 2),

(2, 4),

(3, 6),

(4, 8),

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The equation for calculating the area of a triangle is:

A = 1/2 * base * height

where A represents the area of the triangle, base represents the length of the base of the triangle, and height represents the height of the triangle measured perpendicularly to the base.

Answer:

Step-by-step explanation:

The equation written in slope-intercept form is: y=3x-2.

The solution to the given equation √(2x + 9) = 7 is x = 20.

Any equation that contains a radical symbol is considered a radical equation. To find the square roots, cubic roots, and higher, radical symbols are used.

The equation is given as follows:

√(2x + 9) = 7

Square both sides of the above equation,

2x + 9 = 7²

2x + 9 = 49

Subtract 9 from both sides of the above equation,

2x = 49 - 9

2x = 40

Divide by 2 into both sides of the equation,

x = 40/2

x = 20

Thus, the solution to the given equation is x = 20.

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Then, the number of pounds of food that an adult manatee can eat in "d" days can be represented by the equation: p = r x d.

An equation is a mathematical statement that shows that two expressions are equal. It consists of two parts: the left-hand side (LHS) and the right-hand side (RHS), separated by an equals sign (=). The equals sign indicates that the two expressions are equal, and the goal of solving the equation is to find the value of x that makes this statement true. Equations can be solved using various algebraic techniques, such as simplifying and rearranging the expressions, applying operations to both sides of the equation, and factoring or expanding expressions. Solving an equation involves finding the values of the variables that make the equation true.

Here,

Let's assume that an adult manatee eats "r" pounds of food per day on average. Then, the number of pounds of food that an adult manatee can eat in "d" days can be represented by the equation: p = r x d

Here, "p" represents the number of pounds of food, "r" represents the average amount of food consumed per day, and "d" represents the number of days. So, if we know the average amount of food consumed by an adult manatee per day, we can use this equation to calculate how much food it will eat in any given number of days.

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Using arithmetic operations, The total cost of six sheets will be:

$27.00 + ($9.00 x 4) = $63.00

If each sheet costs $18.00, then the cost of the first sheet will be $18.00, and the cost of the second sheet will be 50% of $18.00, or $9.00.

So, two sheets will cost the cost of the first sheet plus the cost of the second sheet, which is:

Using addition,

$18.00 + $9.00 = $27.00

For six sheets, we can use the same logic: the first two sheets will cost $27.00, and the next four sheets will be half off. So, the cost of the next four sheets will be 50% of $18.00, or $9.00 each.

Hence, the total cost of six sheets will be:

$27.00 + ($9.00 x 4) = $63.00

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Answer:

= 0.375

Step-by-step explanation:

then 3/8 to it decimal fraction

[tex] \frac{3}{8} \\ = 0.375[/tex]

Answer:

10^9 = 1,000,000,000

2^6 = 64

7^1 = 7

10^3 = 1,000

10^8 = 100,000,000

0^4 = 0

7^6 = 117,649

Step-by-step explanation:

The exponent multiplies a number by itself by whatever value it is.

Answer:

↓ ↓ ↓

Step-by-step explanation:

1)

2)

3)

4)

5)

6)

7)

8)

9)

10)

________________________

Hope this helps! :)

The sectors of the circle graph is solved and the field trip with the measure of section is

Aquarium = 90°

Science Museum = 144°

Botanical Gardens = 54°

Planetarium = 72°

In circles, a sector is said to be a part of a circle made of the arc of the circle together with its two radii. This means that it is a portion of the circle formed by a portion of the circumference (arc) and radii of the circle at both endpoints of the arc.

The formula for Area of a sector is given as;

θ/360 * πr²

where;

θ is the central angle of the sector

r is radius

Now, looking at the given options we can say that the only one that represents the area of the sector is;

A = n/360 * πr²

where n is the central angle of the sector

Given data ,

Let the area occupied by the circle be represented as A

Now , the values of A are

Let the field trip be represented as y

Let the number of votes be represented as x

y = { Aquarium , Science Museum , Botanical Gardens , Planetarium }

x = { 30 , 48 , 18 , 24 }

Now , the total sector angle occupied by field trip is T = 120°

x₁ = ( 30/120 ) x 360

x₁ = ( 1/4 ) x 360

x₁ = 90°

when x₂ = 48

x₂ = ( 48/120 ) x 360

x₂ = ( 0.4 ) x 360

x₂ = 144°

when x₃ = 18

x₃ = ( 18/120 ) x 360

x₃ = ( 0.15 ) x 360

x₃ = 54°

when x₄ = 18

x₄ = ( 24/120 ) x 360

x₄ = ( 0.2 ) x 360

x₄ = 72°

Hence , the measures of the section of circle is solved

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Answer: the image didnt send with this try reposting

Step-by-step explanation:

this is a little funny out of context tho, best of luck be upon you

Answer:

length of rectangular prism: 9 feet

width of rectangular prism: 9 feet

Step-by-step explanation:

volume= length x width x height

567/7=81

Since 81 cubic feet squared is the area of the base; the square bottom, you will need to find the square root of 81 which is 9 since 9 times 9 equals 81.

The location of A ' given the rotation about the origin and the xy coordinate plane is D. In Quadrant IV.

To rotate a point 180° about the origin, we switch the signs of both coordinates. For instance, if you have ( x, y ) rotated, then it becomes ( - x ,  - y ).

So, if A is located at (-4, 3), then A' is located at (4, -3).

The point A' is located in Quadrant IV, because it has a positive x-coordinate and a negative y-coordinate, which is the characteristic of points in this quadrant.

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The value οf h is apprοximately 2.83. Sο the answer is (A) 2.

Expοnential expressiοns invοlve a base number raised tο a pοwer οr expοnent. The expοnent indicates hοw many times the base number shοuld be multiplied by itself.

We can simplify the expressiοn [tex]9(2)^{5x+10}[/tex] as follows:

[tex]9(2)^{5x+10} = 9(32)^{x+10}[/tex]

We can then rewrite this expression as [tex]9(h)^{x+2},[/tex] where h is a variable:

[tex]9(h)^{x+2} = 9(32)^{x+10}[/tex]

Comparing the expοnents of h and 32, we can see that h = [tex]2^{(5/2)}[/tex], or h = 2 * sqrt(2) = 2.83 (rounded to twο decimal places).

Hence, the value οf h is approximately 2.83. So the answer is (A) 2.

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In answering the question above, the solution is As a result, when x gets function closer to infinity, the function's limit is equal to 0.

Mathematicians investigate the relationships between numbers, equations, and related structures, as well as the locations of forms and possible placements for these items. A set of inputs and their corresponding outputs are referred to as a "function" in this context. If each input results in a single, unique output, the relationship between the inputs and outputs is known as a function. Each function has its own domain, codomain, or scope. A common way to denote functions is with the letter f. (x). is an x for entry. One-to-one capabilities, so multiple capabilities, in capabilities, and on functions are the four main categories of accessible functions.

The idea of dominating words can be used to solve this constraint. We see that the denominator x2+8 grows significantly greater than the numerator x-6 as x goes to infinity, therefore we may disregard the smaller component in the numerator and denominator.

As a result, the phrase may be simplified as follows:

Limit x (x - 6) / (x2 + 8) goes to infinity

x / (x2) limit x approaches to infinity

= limit x approaches to infinity 1 / limit x

= 0

As a result, when x gets closer to infinity, the function's limit is equal to 0.

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The rhyme scheme of the poem is abab cdcd efef gg. The rhyme scheme creates a sense of symmetry and balance in the poem.

A poem's rhyme system is its regular pattern of final rhymes. It is written using alphabetical letters, each of which stands for a particular rhyme sound. A poem with the rhyme scheme ABAB, for instance, follows a pattern where the first and third lines rhyme, and the second and fourth lines rhyme.

The poem's rhyme scheme can be mathematically described by utilising letters to denote the various rhyming sounds. "Abab cdcd efef gg" is the rhyme pattern used in this poem. This can be written as follows using letters to represent the various sounds:

This pattern is repeated throughout the entire poem, creating a consistent and structured rhyme scheme.

Therefore the rhyme scheme is abab cdcd efef gg.

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Using law of cosine, the distance from the wall at point A is approximately 21.32 feet.

We can use the law of cosines to find the distance from the wall at point A. Let's call this distance d.

In the triangle formed by the center of the merry-go-round, point A, and the point where the merry-go-round touches the wall (let's call this point B), we know that:

Using the law of cosines, we have:

(8)^2 = (42)^2 + (d + 8)^2 - 2(42)(d + 8)cos(130)

Simplifying and solving for d, we get:

d = sqrt[ (8)^2 - (42)^2 cos^2(130) ] - 8

Plugging in the values, we get:

d ≈ 21.32 feet

Therefore, the distance from the wall at point A is approximately 21.32 feet.

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Answer:

the original price of each costume was $25, and the sale price was $(25-3.50) = $21.50.

Step-by-step explanation:

Let the original price of each costume be $x. The sale price of each costume will be $(x-3.50). Ms. Monroe ordered 24 costumes, so the cost of 24 costumes at the sale price will be:

24 × (x-3.50) = $24x - $84

Ms. Monroe paid $516 in all, so we can write:

24x - 84 = 516

Adding 84 to both sides, we get:

24x = 600

Dividing both sides by 24, we get:

x = 25

Therefore, the original price of each costume was $25, and the sale price was $(25-3.50) = $21.50.

Answer: so Ms.Monroe got $84 off her entire purchase

Step-by-step explanation: I hope it helps

The number of hours till Ed and Julie were 875 miles apart was 7 hours.

Since Ed and Julie are traveling in opposite directions, we can think of their distances from Good Life City as two separate distances that are adding up to their total distance apart.

For Ed, his distance from Good Life City is:

= 60 t

For Julie :

=  65t

We want to know how many hours it took for their total distance to be 875 miles. So we can set up the equation:

875 = 60t + 65t

Simplifying, we get:

875 = 125t

t = 875 /  125

t = 7 hours

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The mean temperature increases, the electricity bill decreases.

What is the scatter plots?

A scatter plot is a type of graph that is used to display the relationship between two continuous variables.

To find the correlation coefficient, we first need to plot the data points on a scatter plot. We can use a graphing calculator to do this.

Here are the steps:

The calculator will display the equation of the line of best fit, as well as the correlation coefficient (r).

Using these steps, we get a correlation coefficient of approximately -0.83. Rounded to the nearest hundredth, the correlation coefficient is -0.83.

This negative correlation coefficient indicates a strong negative relationship between mean temperature and electricity bill.

Hence, the mean temperature increases, the electricity bill decreases.

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