Carlos has a box of coins that he uses when playing poker
with friends. The box currently contains 56 coins,
consisting of pennies, dimes, and quarters. The number of
pennies is equal to the number of dimes, and the total
value is $6.59. How many of each denomination of coin
does he have?

Some people decide to continue working because they need the money, while others love what they do and can't imagine not doing it anymore or just need to stay busy.

What is absolute change?

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When researchers observe a correlation between two variables, they know that there is a relationship between these variables but they do not know if one variable is causing the other.

Correlation is a statistical measure that indicates the strength and direction of a linear relationship between two variables. It ranges from -1 to 1, with -1 indicating a perfect negative correlation, 0 indicating no correlation, and 1 indicating a perfect positive correlation.

A correlation between two variables, such as time spent studying and test scores, suggests that there is a relationship between these variables, but it does not indicate causality.

There could be other variables that influence both of these variables, or the relationship between them could be spurious.

Therefore, researchers must conduct further investigation to determine the cause-and-effect relationship. Researchers might use experimental designs to control for other variables and establish causality.

Additionally, researchers might use other statistical techniques, such as regression analysis, to further explore the relationship between variables.

In conclusion, when researchers observe a correlation between two variables, such as between the amount of time spent studying and test scores, they know that there is a relationship between these variables but they do not know if one variable is causing the other.

To establish causality, researchers must conduct a further investigation using experimental designs and other statistical techniques.

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Answer:

7

Step-by-step explanation:

We need [tex]\sqrt{44} < x[/tex], where x is the unknown integer.

To make this easier, we can square both sides:

44 < [tex]x^{2}[/tex]

To aid here, recall values of low integers squared:

[tex]1^{2}[/tex] = 1, [tex]2^{2}[/tex] = 4, ... [tex]6^{2}[/tex] = 36, [tex]7^{2}[/tex] = 49

7 is the first integer where its square is greater than 44.

Therefore 7 is the first integer greater than the square root of 44.

Answer:

divided both sides by the numeric factor on the left then solve x = 3

Step-by-step explanation:

Answer: -71

Step-by-step explanation:

-213/3 = -71

-71 is the quotient.

-213 : 3= - 71

____________________

Answer:Acute Angle

Step-by-step explanation:

The length of JA' after dilated with a scale factor of 1/4 is 4 mm.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Segment JA = 16 mm

Dilated with a scale factor r = 1/4.

This means,

Segment JA'
= 1/4 x 16 mm

= 4 mm

Thus,

The length of JA' is 4 mm.

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The total area of the composite figure is;  94.485 sq.units

The given composite shape is made up of a rectangle and the quadrant of a circle.

Formula for area of rectangle is;

A_r = Length * Width

Thus;

A_r = 8 * 7

A_r = 56 sq.units

The formula for the area of the quadrant of a circle is;

A_quad = ¹/₄πr²

Thus;

A_quad = ¹/₄π * 7²

A_quad = 38.485 sq.units

Total area of composite figure = 56 sq.units + 38.485 sq.units

= 94.485 sq.units

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The range of values for θ and φ is such that they must not repeat in order to cover the entire sphere θ∈[0,π) and φ∈[0,2π).

The Bloch sphere representation, which bears Felix Bloch's name, is the outcome of the foregoing. This illustration is a unit 2-sphere with two mutually placed spheres at the north and south poles. In contrast, quantum bits cover the entire sphere, whereas these are the only conceivable states for the classical bit representation.

(Disclaimer: One could counter that since the classical bit is represented by voltages, the classical bit representation also contains the axis linking the two poles. As a result, the Bloch sphere illustrates that there is substantially more information involved in quantum bits. When the qubit is measured, one of the two poles is what remains. Exactly which pole is determined by the direction the arrow in the Bloch representation points.

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Answer: B. f(x) = (x - 2)^2 - 3

Step-by-step explanation:

The perimeter of the parallelogram JKLM is 132 units

A parallelogram is a quadrilateral (has four sides and four angles) in which opposite sides are equal and parallel.

From the diagram:

JK = LM

5x - 1 = 3x + 7

5x - 3x = 7 + 1

2x = 8

x = 4

JK = LM = 5(4) - 1 = 19

KL = 11x + 3 = 11(4) + 3 = 47

Perimeter of JKLM = 2(JK + KL) = 2(19 + 47) = 132 units

The perimeter of JKLM is 132 units

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Answer:

701.25 feet squared

Step-by-step explanation:

when you calculate the total area of the circle it comes to 1963.5ft

360 degrees divided by 130 degrees is 2.8 which means you need to divide the total area by 2.8 and the final answer comes to 701.25 feet squared

Answer:

maybe 3/2

Step-by-step explanation:

Answer:

Step-by-step explanation: I think the answer is A

According to the division property of equality, if both sides of an equation are divided by a common real integer that is not zero, the quotients remain equal.

Commutative property, associative property, distributive property, and identity property are the four number properties. Only the algebraic operations addition, subtraction, multiplication, and division are linked with number characteristics.

The four key terminology used in the division process are dividend, divisor, quotient and remainder. Dividend Divisor = Quotient + Remainder is the formula for dividing two numbers.

Commutative property, associative property, distributive property, and identity property are the four number properties. Only the algebraic operations addition, subtraction, multiplication, and division are linked with number characteristics.

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Answer: The Least Common Multiple (LCM) of 3, 6, and 18 is 18

Step-by-step explanation:

The expression of the total cost as a function of the number of chairs produced (x) is: C(x) = 1,610 + 11 x

The production cost comprises two components: fixed cost and variable cost.

Let:

F = fixed cost

p = variable cost per unit chair

x = number of chairs produced.

C(x) = total cost

Hence,

C(x) = F + p . x

2600 = F + 90 p  .... (equation 1)

4800 = F + 290 p  .... (equation 2)

Subtract those questions:

4800 = F + 290 p

2600 = F + 90 p   _

2200 = 200 p

p = 11

Substitute p = 1 into equation 1:

2600 = F + 90 x 11

F = 2600 - 990 = 1,610

Thus, the expression for the total cost is:

C(x) = 1,610 + 11 x

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a) Population of city in 2015 = 640000

b) Population of city in 2019 = 777924

Population-growth happens when an initial population increases by the same percentage or factor over equal time increments or generations.

Given,

Population of city in 2017 (P) = 705600

Rate per annum r = 5% = 0.05

a) Population of city in 2015 (p) = ?

Time difference 2015 and 2017 = 2 years

Population of city in 2017

P = p(1 + r)ⁿ

705600 = p(1 + 0.05)²

p = 705600/1.05²

p = 705600/1.1025

p = 640000

b) Population of city in 2019 = ?

Time difference 2017 and 2019 n = 2 years

Population of city in 2019

= P(1 + r)ⁿ

= 705600(1+0.05)²

=  705600(1.05)²

= 705600 × 1.1025

= 777924

Hence, 640000 is population of city in 2015.

777924 is population of city in 2019

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The value of the given expression [6 • 4 + 50 ÷ (12 + 13) + 2] • 3 is 84.

To evaluate the given expression, we follow the order of operations (PEMDAS). Let's break it down step by step:

Therefore, the value of the given expression is 84.

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The quotient of 4 7 and 3 5 can be expressed as a fraction as 20/35 which is the simplest form of the fraction. This fraction can be created by dividing the numerator 4 by the denominator 7, and dividing the numerator 3 by the denominator 5, and then combining the two fractions by multiplying the numerators and denominators together.

1. 4/7 ÷ 3/5

2. (4/7) × (5/3)

3. (20/21)

4. 20/35 (simplest form)

The quotient of 4 7 and 3 5 can be expressed as a fraction in its simplest form as 20/35. To calculate this fraction, the first step is to divide the numerator 4 by the denominator 7, and divide the numerator 3 by the denominator 5. This gives two fractions, 4/7 and 3/5. The next step is to combine the two fractions by multiplying the numerators and denominators together. This gives the fraction 20/21. The final step is to simplify the fraction, which can be done by dividing the numerator and denominator by the same number to give 20/35, which is the simplest form of the fraction.

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The slope of line passing through the points (3, 8) and (-1, 0) is 2.

In the given question, we have to find the slope of the line that passes through the points (3, 8) and (-1, 0).

The point-slope approach is typically used when two points that sit on a specific line are specified.

A line's equation is written as y - y(1) = m(x - x(1)), where y(1) is the Y-axis coordinate, m is the slope, and x(1) is the X-axis coordinate.

m = [tex]\frac{y(2)-y(1)}{x(2)-x(1)}[/tex]

From the given points x(1) = 3, y(1) = 8, x(2) = -1, y(2) = 0.

Now putting the value

m = [tex]\frac{0-8}{-1-3}[/tex]

Now solving

m = [tex]\frac{-8}{-4}[/tex]

m = 2

Hence, the slope of the line passing through the points (3, 8) and (-1, 0) is 2.

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7y³ is the relationship between the volume of a sphere with a radius that equals to y and the volume of a sphere with a radius equal to 2y.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Volume is defined as the space occupied within the boundaries of an object in three-dimensional space.

Volume of a sphere is 4/3πr³

the volume of a sphere with a radius that equals to y and the volume of a sphere with a radius equal to 2y

4/3πy³=4/3π(2y)³

4/3πy³=4/3π×8y³

y³=8y³

=(1-8)y³

7y³

Hence, 7y³ is the relationship between the volume of a sphere with a radius that equals to y and the volume of a sphere with a radius equal to 2y.

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Two rays that share the same endpoint and form a line are called opposite rays. These rays move in opposite directions.

In mathematics, a ray is defined as a line which has a fixed starting point but does not have an endpoint.

Opposite rays can be defined as two rays which have the same endpoint, forms the line and rays move in the opposite direction to each other.
The line can be defined as the continuous extent of dots without any thickness or breadth. It is endless.

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The introduction of the "Metric System" was caused by the new measurement unit. The measurement is equivalent to 31 quarts.

In order to measure any quantity, the units that are available must be converted to the necessary units using the term "metric conversion."

The introduction of the "Metric System" was caused by the new measurement unit.

United States Customary Units (USCU) are the metric units used in the US (USCS).

Metric conversion is the process of changing the given units for any quantity that has to be measured into the required units.

In light of this, 7 gallon, 3 quarts

A gallon, which is equivalent to 4 quarts, 16 cups, or 8 pints, is most frequently used to measure liquid volume.

7 gallon, 3 quarts, please.

= 7×4+3

33 quarts

Consequently, the measurement is equivalent to 31 quarts.

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Answer: y = -3x + 1

Step-by-step explanation: the line crosses the y-axis at (0,1) then c = 1

The points (0,1) and (1,-2) lie on the line then

m = slope = [(-2)-1]÷(1-0) = [-3]÷(1) = -3÷1 = -3

Therefore, the equation of the line is : y = -3x + 1

The real natural logarithm function ln(x) is defined only for x>0. So the natural logarithm of zero is undefined.

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The angles (6·x + 17)° and (4·x + 23)°, which are same side interior angles, indicates that the measure of the angle (6·x + 17)° is 101°

Same side interior angles are angles formed on the same side of a transversal to two lines and on the interior part of two two lines.

The possible diagram in the question obtained from a similar online question and created with MS Word is attached.

The possible question is to find the measure of the angle with a measure of (6·x + 17)°

From the attached drawing, we get;

Angle 6·x + 17 and angle 4·x + 23 are same side interior angles

Same side interior angles are supplementary, therefore;

6·x + 17 + 4·x + 23 = 180° (definition of supplementary angles)

(10·x + 40)° = 180°

10·x = 180° -  40° = 140°

x = 140° ÷ 10 = 14°

x = 140° ÷ 10 = 14°

x = 14

The measure of the angle (6·x + 17)° is therefore;

(6·x + 17)° = (6 × 14 + 17)° = 101°

The possible question is to find the measure of the angle (6·x + 17)°

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An inverse log is defined as the anti-log of a log function raised to a negative value.

Enter a number and a base into the calculator.

The calculator will display the inverse log of the number and base entered.

The base of the natural log is equal to e=2.71828. The standard base for the log is base 10.

The following formula is used to calculate the inverse log of a number and base.

㏒[tex]b^{-1}[/tex](y) = [tex]b^{y}[/tex]

Where x is the value you are calculating

b is the base

and y is the number to take the log of

To calculate an inverse log, raise the base value to the power of the number being taken in the log.

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After the discount and the tax is applied, Megan will pay 29.10 dollars for the sweater.

We know that originally, the sweater costs $34.00, and there is a 20% decrease on that cost and a tax of 7%.

The decrease of 20% is written as a factor (1 - 20%/100%) = (1 - 0.2)

And an increase of 7% is written as a factor (1 + 7%/100%) = (1 + 0.07)

Then the amount that Megan pays for the sweater is:

P = $34.00*(1 - 0.2)*(1 + 0.07)

P = $34.00*(0.8)*(1.07)

P = $29.10

She pays 29.10 dollars for the sweater.

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