Can anyone help on this?

According to the concept of fraction the value of the quantity at any time t is -4.

A fraction is a mathematical representation of division of two numbers. In this case, we will be using fractions to solve an initial value problem.

The initial value problem is ′=−2,(0)=−4.

This means that the rate of change of the quantity is -2 and its starting value at time 0 is -4.

To solve this problem, we need to find the value of the quantity at some other time.

Here the first step is to find the general solution to the differential equation ′=−2.

This can be done by integrating both sides, which gives us

=> −2.

Integrating, we get

=> −2 + C, where C is an arbitrary constant.

Next, we use the initial value to find the value of C.

We know that when t=0, the value of the quantity is -4, so we can substitute these values into the general solution to get

=> -4 = -2 + C.

Solving for C, we get C = -2.

Finally, we substitute C into the general solution to get

=> -2 -2 = -4.

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The person incurred a loss of: ₹8 in the bargain.

The person purchased 10 eggs for ₹4 each, so the total cost of the eggs is:

This is the money they spent on buying the eggs.

They then sold 8 eggs for ₹4 each,

so the revenue from the sale is:

This is the money they received from selling the eggs.

To calculate the profit or loss in the transaction, we subtract the cost from the revenue:

A negative result indicates a loss. So, in this case, the person incurred a loss of ₹8 in the bargain. This means they received less money from selling the eggs than what they spent on buying them.

Complete Question:

"A person purchased 10 eggs for ₹4 and sold 8 eggs for ₹4. The profit or loss in the bargain will be?"

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Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

Scatterplots are best for showing:

⇒the relationship between two interval/ratio variables

⇒indirect or negative relationship between two ratio variables

Scatterplots display points on a coordinate plane, with one variable plotted on the x-axis and the other variable plotted on the y-axis. This allows us to see the pattern of relationship between the two variables. If there is a positive or negative relationship, we can see if the points tend to increase or decrease as we move from left to right or from bottom to top. If the relationship is indirect, we can see if the points tend to curve in one direction or another.

Scatterplots are not the best visualisation for showing: correlation

frequency of two nominal variables

For showing correlation, a line of best fit (regression line) can be added to a scatterplot, but other visualizations such as a correlation matrix or a heat map are more commonly used.

For showing frequency of two nominal variables, a two-way table or a mosaic plot are better suited, as they can display the count or proportion of cases for each combination of the two nominal variables.

Therefore, Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

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Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

Scatterplots are best for showing:

⇒the relationship between two interval/ratio variables

⇒indirect or negative relationship between two ratio variables

Scatterplots display points on a coordinate plane, with one variable plotted on the x-axis and the other variable plotted on the y-axis. This allows us to see the pattern of relationship between the two variables. If there is a positive or negative relationship, we can see if the points tend to increase or decrease as we move from left to right or from bottom to top. If the relationship is indirect, we can see if the points tend to curve in one direction or another.

Scatterplots are not the best visualization for showing: correlation

frequency of two nominal variables

For showing correlation, a line of best fit (regression line) can be added to a scatterplot, but other visualizations such as a correlation matrix or a heat map are more commonly used.

For showing frequency of two nominal variables, a two-way table or a mosaic plot are better suited, as they can display the count or proportion of cases for each combination of the two nominal variables.

Therefore, Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

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Answer:

1). 3a^4c^3 or D

2). -1/25 or C

3). -z/y^7 or D

4). 3 or A

5). -4^-4 or A

Step-by-step explanation:

I took the quick check already so enjoy your 100% :)

If the line "r" written as y = 1/2x + 8. is perpendicular to Line "s" which includes the point (2,-7) , then the equation of line"s" is  y = -2x -3 .

The Equation of Line perpendicular to another line can be found by interchanging the x and y variables and negating the slope sign .

The equation of line r is :  y = 1/2x + 8, and the slope of line r is 1/2.

The slope of a line perpendicular to line r will be the negative reciprocal of 1/2 that is  -2.

So the equation of line s, which is perpendicular to line r and passes through the point (2, -7), can be written as follows:

⇒ y -(-7) = -2(x - 2)

Expanding and simplifying, we get:

⇒ y + 7 = -2x + 4   ⇒ y = -2x -3

Therefore ,  the equation of line s is ⇒ y = -2x -3 .

The given question is incomplete , the complete question is

The equation for line r can be written as y = 1/2x + 8. Line "s" which is perpendicular to line r, includes the point (2,-7). What is the equation of line s ?

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James and Sandra drank the most soda from their cup.

The information that was given gave specific amount that each person drank from their soda, but James and Sandra were not given a specific amount, so one can only assume they drank the most since their own percentage of drink is not disclose.

Percentage is a way to express a number as a fraction of 100. It's often denoted using the symbol "%". For example, 50% means 50 per 100, or one half

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Answer:

C

Step-by-step explanation:

create two inequalities:

3 < x + 3   and  x + 3 < 6

0 < x         and  x < 3

The height of the chimney is 357 feet according to mentioned dimensions of the chimney and observer.

The ratio of base and height according to angled of elevation will be -

tan theta = perpendicular ÷ base. The same will be for chimney. Hence, equating the ratio of both to find the height of chimney.

The formula will be -

Perpendicular ÷ base of observer = perpendicular ÷ base of chimney

6/4 = height/238

Rewriting the equation according to height of chimney

Height = (6 × 238)/4

Performing multiplication on Right Hand Side of the equation

Height = 1428/4

Performing division on Right Hand Side of the equation

Height = 357

Thus, chimney is 357 feet tall.

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The slope-intercept equation of the line that best fits the data, with a slope of 5.3333 and a y-intercept of 9.6666.

What is the slope?

The slope of a line represents the change in the dependent variable (y) for a unit change in the independent variable (x). In this case, the slope of the line of best fit represents the average change in the test grade for a one hour increase in studying. To find the slope, you can use the formula:

m = (Σxy - (Σx)(Σy)/n) / (Σx² - (Σx)²/n)

To find the slope-intercept equation of the trend line using the first and last data points, we'll first find the slope (m) of the line. The slope can be found using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

where x₁ and y₁ are the values for the first data point, and x₂ and y₂ are the values for the last data point. In this case, the first data point is (1, 15) and the last data point is (7, 47):

m = (47 - 15) / (7 - 1) = 32 / 6 = 5.3333

Next, we'll use the slope and the first data point to find the y-intercept (b) using the formula:

b = y₁ - m * x₁

b = 15 - 5.3333 * 1 = 15 - 5.3333 = 9.6666

Finally, we'll use the slope and y-intercept to write the slope-intercept equation of the line:

y = mx + b

y = 5.3333x + 9.6666

Hence, the slope-intercept equation of the line that best fits the data, with a slope of 5.3333 and a y-intercept of 9.6666.

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Answer:

[tex]y=\dfrac{16}{3}x+\dfrac{29}{3}[/tex]

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{8cm}\underline{Slope Formula}\\\\Slope $(m)=\dfrac{y_2-y_1}{x_2-x_1}$\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ are two points on the line.\\\end{minipage}}[/tex]

The first and last data points of the given table are:

Substitute the data points into the slope formula to find the slope of the trend line:

[tex]\text{Slope}\;(m)=\dfrac{47-15}{7-1}=\dfrac{32}{6}=\dfrac{16}{3}[/tex]

[tex]\boxed{\begin{minipage}{6.3 cm}\underline{Slope-intercept form of a linear equation}\\\\$y=mx+b$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $b$ is the $y$-intercept.\\\end{minipage}}[/tex]

Substitute the found slope and the first data point into the slope-intercept formula and solve for b:

[tex]\implies 15=\dfrac{16}{3}(1)+b[/tex]

[tex]\implies 15=\dfrac{16}{3}+b[/tex]

[tex]\implies b=15-\dfrac{16}{3}[/tex]

[tex]\implies b=\dfrac{45}{3}-\dfrac{16}{3}[/tex]

[tex]\implies b=\dfrac{45-16}{3}[/tex]

[tex]\implies b=\dfrac{29}{3}[/tex]

Therefore, the equation of the trend line in slope-intercept form is:

[tex]y=\dfrac{16}{3}x+\dfrac{29}{3}[/tex]

The expression when evaluated is 72 and the expression is 6 * (5 + 7)

The greatest common factor (GCF) of 30 and 42 is 6. We can write each number as a product of 6 and another factor:

30 = 6 * 5

42 = 6 * 7

Now we can use the distributive property to find the sum:

30 + 42 = 6 * 5 + 6 * 7

= 6 * (5 + 7)

= 6 * 12

= 72

So, the sum of 30 and 42 is 72.

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The peak to peak value of a sine wave is twice the peak value. Therefore, total number of the peak to peak value of this waveform is 2 x 80 VAC = 160 VAC.

The peak to peak value of a sine wave is an important measure of the waveform's amplitude. It is calculated by multiplying the peak value of the waveform by two. The peak value of this particular waveform is 80 VAC, so the peak to peak value of the waveform is 2 x 80 VAC = 160 VAC. This peak to peak value is a measure of the total number voltage swing of the waveform, from its lowest point to its highest point. The peak to peak value of this waveform is a useful parameter for understanding the waveform's strength and potential for causing electrical damage. As such, it is important to measure and understand the peak to peak value of any sine wave in order to successfully manage its power and potential for causing harm.

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The number of cupcakes that the customer can buy as inequality will be 3.5C + 2 < 44.

When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relationship between variables and the numbers.

Given that Rebecca sells cupcakes for $3.50 each and charges customers an automatic $2 charge for a cupcake box as well. A customer walks in with $44 dollars.

The inequality can be written as:-

3.5C + 2 < 44.

Where C is the number of cupcakes and $2 is the charge for the box. Which should be lesser than the total amount.

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The inequality equation is x ≤ 8 , where x is the number of cupcakes

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the number of cupcakes be represented as A

Now , the equation will be

The cost of each cupcake = $ 3.50

The cost per box of cupcake = $ 2.00

So , the total cost of x cupcakes = x ( 3.50 + 2.00 )

The total cost of x cupcakes = 5.50x

Now , The amount of money with Rebecca = $ 44

So , the maximum number of cupcakes she can buy is

total cost of x cupcakes < amount of money with Rebecca

Substituting the values in the equation , we get

5.50 x ≤ 44

Divide by 5.50 on both sides of the equation , we get

x ≤ 44/5.50

x ≤ 8 cupcakes

Hence , the inequality equation is x ≤ 8

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The sum of compound interest on a sum of money is (principal ) Rs 2000.

CI = P*(1+R/100) is the formula for compound interest, which is computed by multiplying the starting principle amount by one and  annual interest rate multiplied by the number of compound periods minus one (T)

CI = A – P

Periodic compounding formula is another name for this formula. In this case, A stands for the updated principle amount or the entire sum of money after the compounding period. P stands for the first or original quantity.

now we have :-

time (annual)=2

time (semi-annual)=4

rate  (annual)= 20

rate (semi-annual=10

difference compound interest =   482

CI(semi-annual)-CI(annual) =482

P*(1+10/100)^(4)  - P*(1+20/100)^(2)=482

P{ (14641/10000) - (36/25)}= 482

P(241/10000)=482

P=(482*10000)/241

P= 20000.

So, sum of money is (principal ) Rs 2000.

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The simplification are as follows:

Simplification in mathematics refers to the process of making an expression, equation, or mathematical problem easier to understand, solve, or manipulate by reducing its complexity. This can be achieved by combining like terms, cancelling out common factors, reducing fractions, or using the properties of arithmetic operations.

The goal of simplification is to transform a complex expression into a simpler form that can be more easily understood or used in further mathematical analysis.

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The sunflower be after w weeks would be 25 + 0.5 * w inches tall.

Let's say James and Natalie were playing with matchsticks when they had the idea to create number patterns with them. James made the number 4 with four matchsticks. In order to create a pattern with two 4s, Natalie added three extra matchsticks. They understood that they could keep adding three matchsticks each round to make an additional "four" by doing so. They deduced from this that, generally speaking, in order to create a pattern with n number of 4s, you need 4+ 3(n-1) sticks. We refer to 4+ 3(n-1) as an algebraic expression in this case.

To calculate the height of the sunflower after 10 weeks, we can use the formula:

height = starting height + growth rate * time elapsed

where the starting height is 25 inches, the growth rate is 0.5 inches per week, and the time elapsed is 10 weeks.

So the height after 10 weeks would be:

height = 25 + 0.5 * 10 = 25 + 5 = 30 inches

Therefore, the sunflower would be 30 inches tall after 10 weeks.

To calculate the height after w weeks, we can use the same formula:

height = 25 + 0.5 * w

So the height after w weeks would be:

height = 25 + 0.5 * w inches

This gives you the height of the sunflower in inches after w weeks of growth.

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The size of the input is doubled, the time taken to execute the loop will also double.

The time complexity of this pseudocode is O(n). This can be determined by analyzing the number of times the loop is executed. The loop is entered once and is then executed n times, where n is the number of times the loop is executed. This can be expressed mathematically as T(n) = 1 + n. Since the loop is executed a constant number of times, regardless of the size of the input, the time complexity of the pseudocode is O(n). This means that the execution time of the loop grows linearly with the size of the input. Thus, if the size of the input is doubled, the time taken to execute the loop will also double.

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the probability of rolling an odd number or rolling a 2 is 2/3

The probability of rolling an even number or a 4 is 2/3

Probability is a mathematical concept that measures the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 means an event is impossible and 1 means an event is certain to occur. The probability of an event can also be expressed as a percentage or as a fraction.

If you roll a six-sided die. The probability of rolling 1, 2, 3, 4, 5 and 6 are as follows:

P (1) = 1/6

P (2) = 1/6

P (3) = 1/6

P (4) = 1/6

P (5) = 1/6

P (6) = 1/6

a. Since there are three odd numbers, P(odd) = 3/6 = 1/2

Thus, the probability of rolling an odd number or rolling a 2 will be:

P(odd or 2) = P(odd) + P(2)

                  = 1/2 + 1/6 = 2/3

b. Since there are three even numbers, P(even) = 3/6 = 1/2

Thus, the probability of rolling an even number or a 4 will be:

P(even or 4) = P(even) + P(4)

                  = 1/2 + 1/6 = 2/3

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Answer:

0

Step-by-step explanation:

I believe it's 0, because if the denominator is equal to 0, our answer would be undefined

y = tan(x) - (π/2 + πn)

This equation represents a tangent function with a domain of all real numbers, except for multiples of pi/2 plus pi.

The equation y = tan(x) - (π/2 + πn) represents a tangent function with a domain of all real numbers except for multiples of pi/2 plus pi. This equation is useful for finding the tangent value of any given x-value, as long as it is not equal to a multiple of pi/2 plus pi. The equation works by subtracting the multiple of pi/2 plus pi from the x-value, and then finding the tangent of the new value. This allows the tangent of the x-value to be found, regardless of whether or not it is equal to a multiple of pi/2 plus pi.

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a) Dilation 1 has a scale factor of 3 units.

b) Dilation 2 has a scale factor of 4 units.

c) Dilation 3 has a scale factor of 0 units.

What is a scale factor?

A scale factor is a number used to multiply the dimensions of a shape to enlarge or reduce its size. In geometry, the scale factor is used to create similar figures by preserving their shape while changing their size. If a figure is scaled up by a scale factor of 'k', its dimensions are increased by a factor of 'k'. If a figure is scaled down, its dimensions are reduced by a factor of 'k'.

For the triangle, the scale factor would be 3 units.

For the square, the scale factor would be 4 units.

For the line, the scale factor would be 0 units.

Hence,

a) Dilation 1 has a scale factor of 3 units.

b) Dilation 2 has a scale factor of 4 units.

c) Dilation 3 has a scale factor of 0 units.

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The choice that  is equivalent to the product given is 2√10

What are surds ?

Surds in mathematics are the square root values that can't be further condensed into whole numbers or integers. Numbers with surds are illogical.

Surds are the square roots of numbers ( √) that are not able to be divided into whole or rational numbers. It cannot be precisely described by a fraction. A surd, then, is a root of a whole number with an irrational value.

√8 •√5

= √(8*5) = √40

= √(10*4)

= √4  * √10

= 2√10

The choice that  is equivalent to the product given is 2√10

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The height of the tree that casts a shadow is 28.45 meters will be 12.68 meters.

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

Ethan is 1.85 meters tall. At 10 a.m., he measures the length of a tree's shadow to be 28.45 meters. He stands 24.3 meters away from the tree.

Then the height of the tree is given as,

h / 1.85 = 28.45 / (28.45 - 24.3)

h / 1.85 = 28.45 / 4.15

h = 1.85 x 28.45 / 4.15

h = 12.68 meters

The height of the tree that casts a shadow is 28.45 meters will be 12.68 meters.

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Answer:

Below

Step-by-step explanation:

Interest for a WHOLE 12 months would be   14 000 * .025 = 350

but Jane had the account for   9 out of 12 months

9/12  * 350 = 262.50 dollars

A month does not have four weeks, nor does a year have 52 weeks.

The ISO week-numbering year, however, has 52 or 53 weeks.

That translates to 364 or 371 days rather than the typical 365 or 366 days.

Since every month has at least 28 days, every month has 4 full weeks.

There are extra days in some months.

1 week = 7 days.

For the months of January, March, May, July, August, October, and December, a month has 4 weeks and 3 days.

A month in April, June, September, and November has 4 weeks and 2 days.

February in a leap year has 4 weeks and 1 day in a month.

There are around 29 days more than a calendar year.

Which means 4 weeks plus some days.

From 12 month: 4 × 12 = 48 weeks.

Form 29 extra days: 4 weeks and 1 days.

Total weeks: 52 weeks in a year.

Total days: 52 × 7 + 1 = 365 days in a year.

In a leap year, the month of February has 4 weeks and 1 day.

366 days make up a leap year.

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Answer:

The answer should be 20 days.

Step-by-step explanation:

The way that I solved it: 1/4 times 5.

Rounding to the nearest tenth, the area of the playground is 176.7 square feet.

As per the data given in the question,

We have,

The shape of the playground = circular

So, for finding the area of a circle, we can use the formula of finding the area of a circle:

So, the value of the area will be: A = πr^2,

where A is the area and r is the radius.

Since the fence is 47.1 feet long,

we can assume that it is the circumference of the circle and divide it by 2π to find the radius:

47.1 feet / 2π

= 47.1 / (2 * 3.14)

= 7.5 feet

So the radius is 7.5 feet and the area of the playground is:

A = π * 7.5^2

A= 3.14 * 56.25

= 176.71 square feet

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Answer:

Step-by-step explanation:

Part A:

To find the value of the remaining angles, we can use the fact that the sum of the angles in a triangle is 180°.

First, let's find the value of <1. We have:

<4 + <1 + <2 = 180°

4 + <1 + (180° - 5 - 4) = 180°

4 + <1 + 171° = 180°

<1 = 5°

Next, let's find the value of <7. We have:

<7 + <5 + <6 = 180°

<7 + 135° + (180° - 10 - 5) = 180°

<7 + 135° + 165° = 180°

<7 = 0°

Finally, let's find the value of <9. We have:

<9 + <10 + <11 = 180°

<9 + 11° + (180° - 10 - 11) = 180°

<9 + 11° + 159° = 180°

<9 = 0°

Part B:

The angle <4 is supplementary to angle <1, meaning they add up to 180°.

The angle <7 is congruent to angle <5, meaning they have the same measure.

The angle <9 is congruent to angle <10, meaning they have the same measure.

In order to calculate the new divisor for a 3-for-4 reverse stock split, we must first calculate the new share price for Able. Since 3/4 of the shares are being replaced with just 1/4 of the old shares, the new price for Able will be $111 (3 x $37 = $111).

The divisor is used to calculate the new index value by dividing the sum of the new share prices by the divisor. Therefore, the new divisor will be 1.33 ($111 + $312 + $94 = $517 / 1.33 = $389.28). This is because the new share prices will total $517 and when you divide that by the divisor, the index value will be $389.28.

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Similar to how a rectangle's area is calculated, a parallelogram's area is calculated as base times height.

The four sides of a parallelogram, a geometric shape made up of two pairs of parallel lines, are parallel. The opposite sides and angles of a parallelogram have equal lengths and measures.

By multiplying the base and altitude of a parallelogram, the area of the shape can be determined. A parallelogram's base and altitude are always parallel to one another. A parallelogram's area can be calculated using the following equation: Area of parallelogram = base height square units.

You can use the following formula to determine any parallelogram's area:

Area = base x height

It should be mentioned that a parallelogram requires a perpendicular base and height.

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