A small can of coffee is 3 in. tall with a 2 in. radius. It sells for $6.26. A larger can of coffee is 9 in. tall with a 6 in. radius. It sells for $12.52. Is the larger can of coffee priced proportionally in regard to the volume of the smaller can? Explain.

Answer:

Area of shaded region:

[tex]\pi {(4 \sqrt{2} )}^{2} - {8}^{2} [/tex]

[tex]32\pi - 64 = 32(\pi - 2)[/tex]

The goal of an optimization problem is to find the maximum or minimum value of an objective function given certain constraints. In this case, the goal of a business owner is often to maximum profit.

The objective function is a method for maximising (or decreasing) something. This something has a monetary value. In the real world, it could be the cost of a project, the quantity of goods produced, the profit value, or even the materials saved as a result of a streamlined process. The objective function is used to try to achieve a target for output, profit, resource use, and so on. We must examine the connections between constraints and any limitations within the business itself. These can include production capacity constraints, resource availability, and even technological limitations.

For instance, from the values of maximum and minimum speed of a train, an engineer will be able to decide on the materials required to withstand the speed, to manufacture brakes for the train to run smoothly. The maximum and minimum value of thyroid in the bloodstream enables the doctor to prescribe the appropriate medicine for the patients to bring down the thyroid levels.

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The required amount will be earn is $3400.

This calculation only takes into account the revenue earned from ticket sales and does not include any additional revenue streams such as merchandise sales or sponsorships.

The total earnings will depend on various factors such as ticket pricing strategy, marketing efforts, and concert attendance.

Here given concert tickets are selling for $34.00 each and it is also given a total number of 100 tickets are sold.

the total earnings will be calculated by multiplying the ticket price by the number of tickets sold.

So,total amount earn = $34×100 = $3400.

This is a problem of Multiplication.

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Correct question is " Concert tickets go on sale for $34. 00 each . Now total number of sold tickets are 100 . Count how many money will earn ."

It is true that When the central bank raises the discount rate, commercial banks are likely to reduce their borrowing of reserves from the Fed.

The discount rate is the interest rate at which commercial banks can borrow reserves from the central bank, such as the Federal Reserve in the United States. An increase in the discount rate makes borrowing from the Fed more expensive for commercial banks.

As a result, commercial banks may choose to call in loans to replace the reserves they would have otherwise borrowed from the central bank. Calling in loans refers to the process of demanding the repayment of outstanding loans from borrowers, which allows the bank to obtain funds to maintain their required reserve levels. By calling in loans, banks can avoid the higher cost of borrowing from the Fed due to the increased discount rate.

Overall, a higher discount rate can encourage commercial banks to reduce their borrowing of reserves from the central bank and instead call in loans to maintain their reserve requirements. This can lead to tighter credit conditions in the economy, as banks may be less willing to extend new loans to borrowers, potentially slowing down economic growth.

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Answer:

The z-score is calculated as follows:

z = (x - μ) / σ

where x is the value of interest, μ is the mean, and σ is the standard deviation.

Plugging in the values given, we get:

z = (86 - 62) / 12 = 2

Therefore, the z-score for a value of 86 is 2.

The answer is (C) 2.

Step-by-step explanation:

Answer:

2a - 1/a^2 +5

The first three terms of the sequence a_n = 2n-1/n²+5 are 1/6, 1/3, and 5/14.

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members. The number of elements is called the length of the sequence.

A sequence is an ordered list of numbers. The three dots mean to continue forward in the pattern established. Each number in the sequence is called a term.

The first three terms of the sequence a_n = 2n-1/n²+5 are:

1. For n=1, a_1 = (2(1)-1)/(1²+5) = 1/6
2. For n=2, a_2 = (2(2)-1)/(2²+5) = 3/9 = 1/3
3. For n=3, a_3 = (2(3)-1)/(3²+5) = 5/14

So, the first three terms of the sequence are 1/6, 1/3, and 5/14.

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Wyatt will color a total of 96 square inches on all sides of the cube.

A cube has six sides, and each side will be a square. To find the total area of all the sides that Wyatt will color, we need to multiply the area of one side by the total number of sides.

Given that the side length of Wyatt's cube is 4 inches, the area of one side would be;

Area of one side = side length × side length

= 4 inches × 4 inches

= 16 square inches

Since there are six sides in total, the total area of all the sides would be;

Total area of all sides = Area of one side × Number of sides = 16 square inches × 6

= 96 square inches

Therefore, total 96 square inches will wyatt color.

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Categorical variables, such as nominal and ordinal scales, are weaker than continuous variables, such as interval and ratio scales, in terms of the type of information statistics on them yield. Categorical variables only provide limited information and are not as precise as continuous variables. Categorical variables have weaknesses related to limited statistical analysis and potential loss of information, while continuous variables can be sensitive to outliers and require more advanced statistical techniques for analysis. Both types of variables provide valuable information but have limitations when analyzing statistics.

Let's discuss the relative weakness of categorical and continuous variables with respect to the type of information statistics on them yield.

Categorical variables are those that can be divided into categories, and they include nominal and ordinal scales. Nominal variables have no inherent order (e.g., hair color), while ordinal variables have a clear order (e.g., educational level).

Weakness:
1. Limited statistical analysis: Since categorical variables have no numerical value, certain statistical measures, such as mean and standard deviation, cannot be applied to them.
2. Loss of information: Categorical variables can sometimes oversimplify data, leading to a loss of information when grouping continuous data into categories.

Continuous variables are those that can take any value within a defined range, and they include interval and ratio scales. Interval variables have a constant distance between values but no absolute zero (e.g., temperature in Celsius), while ratio variables have a constant distance and an absolute zero (e.g., height).

Weakness:
1. Susceptibility to outliers: Continuous variables are more sensitive to extreme values (outliers), which can significantly affect the statistics derived from them, such as the mean.
2. Data complexity: Continuous variables often require more advanced statistical techniques for analysis, which may be challenging for those without a strong background in statistics.

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Answer:

since 41° is vertically opposite to 2x+1 they are equal

so 2x+1=40 , 1 turns negative crossing the equals sign so 2x=40 so x=20

As we see, p-value is less than the significance level, so null hypothesis rejected and there is no evidence to support the claim that population mean is 22 degree C.

The population mean can be calculated by the sum of all values in the given data/population divided by a total number of values. We have various temperature measurements are recorded at different times for a particular city.

Sample Mean, [tex]\bar X [/tex] = 20°C

Standard deviations,[tex]\sigma [/tex]= 1.5° C

Level of significance, = 0.05

We have to test that population mean is 22 degree C. Consider the hypothesis testing, the null and alternative hypothesis are [tex]H_0 : \mu = 22 [/tex].

[tex]H_a : \mu ≠ 22 [/tex].

Consider the test statistic, z test for mean formula, [tex]z = \frac{\bar x - \mu }{\frac{\sigma}{\sqrt{n}}}[/tex].

=> [tex]z = \frac{20 - 22}{\frac {1.5}{\sqrt{60}}}[/tex].

= - 10.32

Now, using distribution table, the p-value for z = - 10.32 is less than to 0.001. So,

p-value < 0.05, so null hypothesis is rejected.

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The probability that Tally is on the red team is 1/4.

We have,

Total students = 16

Students in each group = 16/4 = 4

Total Teams = Red, Yellow, Green and Blue.

So, the probability that Tally is on the red team

= 4 / 16

= 1/4

Thus, the probability is 1/4.

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The graph of g(x) is a V-shaped graph centered at x = -3, with the vertex at (-3, -2), and opening downward.

We have,

The graph of the function g(x) = -|x+3| - 2 can be obtained by first graphing the function f(x) = |x| and then transforming the graph.

The function f(x) = |x| is a V-shaped graph that passes through the origin and has a slope of 1 on either side of the origin.

The function -|x| is the reflection of f(x) about the x-axis and has the same shape, but opens downwards.

To obtain the graph of g(x) = -|x+3| - 2, we first shift the graph of -|x| three units to the left to get the graph of -|x+3|.

This means that the V-shape of the graph is centered at x = -3.

Then we shift the entire graph downward by 2 units to get the final graph of g(x).

Therefore,

The graph of g(x) is a V-shaped graph centered at x = -3, with the vertex at (-3, -2), and opening downward.

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To find the sum of 6k by adding each term together, we can simply add 6k + 6k + 6k + 6k + 6k + 6k which gives us a total of 36k.

To verify this result using the summation capabilities of a graphing utility, we can use the sigma notation (Σ) to represent the sum. The sigma notation is defined as Σ6k where k starts at 1 and goes up to 6. This means we are adding 6k, six times.

To input this into a graphing utility, we can use the summation feature. For example, on a TI-84 calculator, we can press the "Math" button, select "1:sum(", and enter the expression "6k" followed by a comma and then the values of k that we want to sum from (1) and to (6). This gives us the result of 36k, which matches our previous calculation.

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The value of a in the expression will be 3750.

The value of b, rounded to 2 decimal places will be (75/23)^1/4

The value of n is 450.

An expression consists of one or more numbers or variables along with one more operation.

The value of a in the expression will be:

= 4200 - 450

= 3750.

The number of French words a student remembers never decreases below a certain number of words, n which is 450.

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The same constant rate of change as Michael's is depicted in following ratio - 180 page in 2 hours, 225 pages in 150 minutes and 210 pages in 2 hour 20 minutes.

The rate of reading Michael is -

Rate = 135/90

Rate = 3:2

Now, we will check the options to see if they have same ratio.

Option 1 180 page in 2 hours

As known about time conversion that 1 hour has 60 minutes, 2 hours = 120 minutes

So, Rate = 180/120

Rate = 3:2

Option 2 60 pages in 30 minutes

Rate = 60/30

Rate = 2:1

Option 3 108 pages in 2 and half hours

Time = 2.5 hours

Time = 150 minutes

Rate = 108/150

Rate = 18:25

Option 4 150 page in 1 hour

Rate = 150/60

Rate = 5:2

Option 5 225 pages in 150 minutes

Rate = 225/150

Rate = 3:2

Option 6 210 pages in 2 hour 20 minutes

Time = 140 minutes

Rate = 210/140

Rate = 3:2

Hence, the same rate options are 180 page in 2 hours, 225 pages in 150 minutes and 210 pages in 2 hour 20 minutes.

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The complete question is -

Michael read 135 pages in 90 minutes. Select all of the rates that have the same constant rate of change as Michael's rate. 180 pages in 2 hours, 60 pages in 30 minutes, 108 pages in 2 and half hours, 150 pages in 1 hour, 225 pages in 150 minutes, 210 pages in 2 hour 20 minutes

The given graph in the figure is a graph of compound interest as the graph of simple interest is a straight line whereas the graph of compound interest is a smooth curve.

When we plot the amount of money accumulated over time for both compound interest and simple interest on a graph, we can see that the graph for compound interest grows at a much faster rate than that of simple interest. This is because the effect of compounding interest leads to an exponential increase in the amount of money accumulated over time. In contrast, the growth rate of simple interest is linear and does not increase over time.

In summary, the main difference between the graphs of compound interest and simple interest is the rate at which the interest grows over time, with the former growing at an increasing rate due to the effect of compounding interest, while the latter grows at a constant rate.

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Answer: i think it b

Step-by-step explanation:

b

The argument is not valid.

The argument commits a fallacy known as the false dilemma or false dichotomy, which presents only two options when there may be more. In this case, the argument assumes that if Superman does not prevent evil, then he must either be impotent or malevolent.

However, there could be other reasons why Superman does not prevent evil, such as a lack of knowledge or resources.

Furthermore, the argument assumes that if Superman exists, then he must either prevent evil or be impotent/malevolent, but this assumption is not necessarily true. It is possible for Superman to exist and not have the ability or inclination to prevent all evil.

Therefore, the conclusion that Superman does not exist does not necessarily follow from the premises. The argument is not valid.

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Answer:

1/2

Step-by-step explanation:

The probability of a random card being red is 1/2 since half the cards are red and half are black

The probability of selecting a red card or a king from a deck of 52 cards is 28/52, which can be simplified to 7/13.

To find the probability of selecting a red card or a king from a deck of 52 cards, follow these steps:

1. Determine the total number of red cards in the deck. There are 26 red cards, as there are 13 cards of each red suit (hearts and diamonds).
2. Determine the total number of kings in the deck. There are 4 kings, one from each suit.
3. Determine the overlap between red cards and kings. There are 2 red kings (king of hearts and king of diamonds).
4. Use the principle of inclusion-exclusion to account for the overlap. This means we'll add the probabilities of the two individual events and subtract the probability of their intersection (overlap).
5. Calculate the probability of each event and their intersection:
  - Probability of a red card: 26/52 (number of red cards / total cards)
  - Probability of a king: 4/52 (number of kings / total cards)
  - Probability of a red king: 2/52 (number of red kings / total cards)
6. Apply the inclusion-exclusion principle:
  - Probability of a red card or a king = (Probability of a red card) + (Probability of a king) - (Probability of a red king)
  - Probability = (26/52) + (4/52) - (2/52) = 28/52

So, the probability of selecting a red card or a king from a deck of 52 cards is 28/52, which can be simplified to 7/13.

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The domain and range of the given relation { ( 0 , 2 ) , ( 1 , 3 ) , ( 2 , 4 ) , ( 3 , 5 ) , ( 4 , 6 ) } are as follows: Domain: {0, 1, 2, 3, 4}, Range: {2, 3, 4, 5, 6}.

The domain represents the set of all input (x) values, while the range represents the set of all output (y) values in the relation. The given set of ordered pairs is a relation. The first coordinate in each pair is the input, also known as the domain, and the second coordinate is the output, also known as the range.
Domain: { 0, 1, 2, 3, 4 }
Range: { 2, 3, 4, 5, 6 }

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Answer:

x^3 + 5x^2 + 2x - 8.

Step-by-step explanation:

To find the equation of a polynomial function, we need to know the roots and the degree of the function. We are given the roots -4, -2, and 1.

Since these are the roots, we know that the factors of the polynomial are (x + 4), (x + 2), and (x - 1). We can find the equation by multiplying these factors together:

(x + 4)(x + 2)(x - 1)

To simplify this expression, we can use FOIL (First, Outer, Inner, Last) method:

(x + 4)(x + 2)(x - 1) = (x^2 + 2x + 4x + 8)(x - 1) = (x^2 + 6x + 8)(x - 1)

Expanding further, we get:

(x^2 + 6x + 8)(x - 1) = x^3 + 6x^2 + 8x - x^2 - 6x - 8 = x^3 + 5x^2 + 2x - 8

Therefore, the equation is:

x^3 + 5x^2 + 2x - 8.

We have sufficient evidence to conclude that the mean is less than 126 at the 1% level of significance.

The null hypothesis is that the mean is equal to 126.

H0: μ = 126

The alternative hypothesis is that the mean is less than 126.

Ha: μ < 126

We will use a one-tailed t-test for this problem, with a significance level of 0.01 and 100 degrees of freedom (n-1).

a) State the hypotheses.

H0: μ = 126

Ha: μ < 126

b) Calculate the test statistic.

t = (x - μ) / (s / √n)

where x is the sample mean, μ is the hypothesized population mean, s is the sample standard deviation, and n is the sample size.

Plugging in the values given, we get:

t = (120.96 - 126) / (21.42 / √101) = -2.96

c) State the rejection criterion for the null hypothesis.

We will reject the null hypothesis if the test statistic is less than the critical value from the t-distribution with 100 degrees of freedom and a one-tailed test at a significance level of 0.01.

Using a t-table or a calculator, we find the critical value to be -2.364.

d) Draw your conclusion.

Since our test statistic (-2.96) is less than the critical value (-2.364), we reject the null hypothesis. We have sufficient evidence to conclude that the mean is less than 126 at the 1% level of significance.

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As the cost of producing smartphones has fallen over the past decade, several implications and effects on the market for smartphones can be observed:

1. Lower prices: Falling production costs have led to lower prices for consumers, making smartphones more affordable and accessible to a broader population.

2. Increased demand: Lower prices have also resulted in increased demand for smartphones, as more people can now afford them. This has led to a higher sales volume in the market.

3. Market expansion: The accessibility and affordability of smartphones have led to market expansion, as smartphones become more prevalent in both developed and developing countries.

4. Greater competition: The lower production costs have enabled more companies to enter the smartphone market, increasing competition and leading to more product variety for consumers.

5. Innovation and improvement: Due to the increased competition, companies are constantly seeking ways to differentiate their products through innovative features, improved design, and better performance.

Overall, the falling production costs of smartphones have positively impacted the market by lowering prices, increasing demand, and driving innovation and competition.

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The metal in the frame weighs 70.5 kg in total. If a rectangular frame measuring 5 metres in length and 12 metres in width is constructed from five straight pieces of metal.

Get the diagonal

d² = 52 + 122

d² = 25+ 144

d² = 169

d = 13m

Get the perimeter of the rectangular frame:

Perimeter of the frame = 2(5+12) + 13

Perimeter of the frame = 2(17) + 13

Perimeter of the frame = 34 + 13

Perimeter of the frame = 47m

If the weight of the metal is 1.5 kg per metre, the total weight will be expressed as:

Total weight = 47×1.5

Total weight = 70.5kg

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The complete question is

This rectangular frame is made from 5 straight pieces of metal.

5 m

12 m

The weight of the metal is 1.5 kg per metre.

Work out the total weight of the metal in the frame.

The correlation coefficient of 0.88 reveals that there is an intense linear connection between the two variables.

It should be noted that to ascertain the correlation coefficient, we can utilize the formula:

r = (nΣxy - ΣxΣy) / sqrt[(nΣx^2 - (Σx)^2)(nΣy^2 - (Σy)^2)]

Retaining the same numeric values from before, we can compute:

r = (9(976) - (36)(605)) / sqrt[(9(182) - (36)^2)(9(11681) - (605)^2)] ≈ 0.88

Therefore, the correlation coefficient is fairly close to 0.88.

The correlation coefficient implies a strong positive relationship between hours expended studying and test outcomes. As the quantity of hours committed to studying increases, the test scores will tend to keep up accordingly. A correlation coefficient of 0.88 reveals that there is an intense linear connection between the two variables, and the line of best fit serves as a desirable standard representation of the data.

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Answer:

Step-by-step explanation:

It appears there is an error in the table. The correct table is:

[tex]\begin{array}{|l|c|c|c|c|c|c|c|c|c|c|c|}\cline{1-11}\vphantom{\dfrac12}\textsf{Hours spent studying $(x)$}&0&1&2&4&4&4&6&6&7&8\\\cline{1-11}\vphantom{\dfrac12}\textsf{Test score $(y)$}&35&40&46&65&67&70&82&88&82&95\\\cline{1-11}\end{array}[/tex]

The simplest method to find the linear regression equation and the correlation coefficient for this data set is to use a statistical calculator.

After entering the data into a statistical calculator we get:

The regression line of y on x is y = a + bx.

Therefore, substitute the found values of a and b into the formula to write the linear regression equation for the given data set:

[tex]\boxed{y=34.27+7.79x}[/tex]

The correlation coefficient is the value of r, so r = 0.98 to the nearest hundredth.

The correlation coefficient, r, measures the strength of the linear correlation between two variables. |t is always between +1 and -1.

As r = 0.98, there is a very strong positive correlation.

In context, this suggests that the more hours of studying for a test a student does, the higher their test score.

Answer:

Step-by-step explanation:

To find the solution to the system of equations represented by the two lines, we need to find the point where they intersect on the graph.

First, let's find the coordinates of the intersection point by solving the system of equations. We have:

y = (3/2)x (Equation 1)

y = (-1/2)x + 4 (Equation 2)

To find the intersection point, we need to set the two equations equal to each other:

(3/2)x = (-1/2)x + 4

Simplifying this equation, we get:

2x = 8

x = 4

Now that we know x = 4, we can substitute this value into either Equation 1 or Equation 2 to find the corresponding value of y:

y = (3/2)x

y = (3/2)(4)

y = 6

Therefore, the solution to the system of equations represented by the two lines is (4, 6).

The first 10 terms of the sequence using the recursion formula are 1, 1.5, 1..75, 1.875, 1.9375, 1.96875, 1.984375,  1.9921875, 1.99609375,  1.998046875

Here we have the first term of the sequence as

A₁ = 1

The recursion relation is given by

aₙ₊₁ = aₙ + 0.5ⁿ

Now here since we have

A₁ = 1, where n = 1

A₂ = A₁ + 0.5

= 1 + 0.5 = 1.5

Hence,

A₃ = A₂ + 0.5²

= 1.75

A₄ = A₃ + 0.5³

= 1.875

A₅ = A₄ + 0.5⁴

= 1.9375

A₆ = A₅ + 0.5⁵

= 1.96875

A₇ = A₆ + 0.5⁶

=1.984375

A₈ = A₇ + 0.5⁷

= 1.9921875

A₉ = A₈ + 0.5⁸

1.99609375

A₁₀ = A₉ + 0.5⁹

= 1.998046875

Hence, the first 10 terms of the sequence using the recursion formula are 1, 1.5, 1..75, 1.875, 1.9375, 1.96875, 1.984375,  1.9921875, 1.99609375,  1.998046875

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The researcher needs a sample of at least 46 days.

We have,

To estimate the true mean water temperature within 4 with 90% confidence, given that the variance is 27%, we need to use the formula for sample size in a confidence interval estimation:
n = (Z² x σ²) / E²
where n is the required sample size, Z is the Z-score corresponding to the desired confidence level (90%), σ^2 is the variance (27%), and E is the margin of error (4).

We can find the Z-score for a 90% confidence level using a standard normal table, which is 1.645.
Now we can plug the values into the formula:
n = (1.645² x 0.27) / 4²
n = (2.706025 x 0.27) / 16
n = 0.729625 / 16
n = 0.0456015625

Since we cannot have a fraction of a day, we need to round up to the nearest whole number to ensure the desired accuracy.

Therefore, the researcher needs a sample of at least 46 days to estimate the true mean water temperature within 4 with 90% confidence.

Thus,

The researcher needs a sample of at least 46 days.

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A graph of the transformed function y = f(-x) is shown in the image attached below.

In Mathematics and Geometry, a reflection over or across the y-axis or line x = 0 is represented and modeled by this transformation rule (x, y) → (-x, y).

This ultimately implies that, a reflection over or across the y-axis would maintain the same y-coordinate (y-axis) while the sign of the x-coordinate (x-axis) would change from positive to negative or negative to positive.

In this context, we can reasonably infer and logically deduce that the graph of the absolute value function y = f(-x) can be created by reflecting the parent absolute value function y = f(x) over or across the y-axis;

f(x) = |x - 4|

g(x) = y = f(-x) = |-x - 4|

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The distance between the points (-21,-29) and (0,0) is approximately 35.80 units.

To find the distance between two points in a coordinate plane, we can use the distance formula. The distance formula is based on the Pythagorean theorem and can be written as follows:

d = √((x₂ - x₁)² + (y₂ - y₁)²)

Where d is the distance between the two points, and (x₁, y₁) and (x₂, y₂) are the coordinates of the two points.

Using this formula, we can find the distance between the points (-21,-29) and (0,0) as follows:

d = √((0 - (-21))² + (0 - (-29))²)

= √(21² + 29²)

= √(441 + 841)

= √1282

≈ 35.80

This distance represents the length of a straight line segment connecting the two points in the coordinate plane.

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Answer:

(x+10)² + (y+5)² = 125

Step-by-step explanation:

We are given that a circle has a center (-10,-5), and passes through the point (-5,5).

We want to write the equation of this circle in the standard equation. The standard equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius.

As we are already given the center point, we can substitute its values into the equation.

Reminder: the equation uses negative values, and we have negative numbers.

(x--10)² + (y--5)² = r²

This can be simplified to:

(x+10)² + (y+5)² = r²

Now, we need to find r².

As the point passes through (-5,5), we can use its values to solve for r².

Substitute -5 as x and 5 as y.

(-5+10)² + (5+5)² = r²

(5)² + (10)² = r²

25 + 100 = r²

125=r²

The radius is 125

Substitute 125 as r².

(x+10)² + (y+5)² = 125