Please help! I can mark you brainliest!!

South Florida Water Management

The South Florida Water Management District is a regional governmental agency that manages the water resources in the southern half of the state, covering 16 counties from Orlando to the Florida Keys and serving a population of 9 million residents.

Water management is the control and movement of water resources to minimize damage to life and property and to maximize efficient beneficial use. Good water management of dams and levees reduces the risk of harm due to flooding.

Water management is the activity of planning, developing, distributing and optimum use of water resources under defined water polices and regulations.

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Answer:

C

Step-by-step explanation:

You can use process of elimination. In D and A all the y numbers are staying the same. In B, the numbers are decreasing. So the only possible answer is C.

Hope this helped!! :D

In each scenario, the choice between mean and median as a representative measure of central tendency depends on the nature of the data and the specific context..

1. Scenario: Income distribution of a population

- If the income distribution is skewed or contains extreme values (outliers), the median would be a better representation of the central tendency. This is because the median is not influenced by outliers and provides a more robust estimate of the "typical" income level. However, if the income distribution is approximately symmetric without outliers, the mean can also be an appropriate measure.

2. Scenario: Exam scores in a class

- If the exam scores are normally distributed without significant outliers, the mean would be a suitable measure as it takes into account the value of each score. However, if there are extreme scores that deviate from the majority of the data, the median may be a better representation. This is especially true if the outliers are indicative of errors or exceptional circumstances.

3. Scenario: Housing prices in a city

- In this case, the median would be a more appropriate measure to represent the central tendency of housing prices. This is because the housing market often exhibits a skewed distribution with a few high-priced properties (outliers). The median, being the middle value when the data is sorted, is not influenced by these extreme values and provides a better understanding of the typical housing price in the city.

Ultimately, the choice between mean and median depends on the specific characteristics of the data and the objective of the analysis. It is important to consider the distribution, presence of outliers, and the context in which the data is being interpreted.

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Let the number be "x" , then according to the question :

• 2x - 12 = -8

Further solving

→ 2x = -8 + 12

→ 2x = 4 .

→ x = 2

★ Solution :

Let number be n.

\(\rule{130}{1}\)

☯ \(\underline{\boldsymbol{According\: to \:the\: Question\:now :}}\)

\(:\implies\sf 2n - 12 = -8 \\\\\\:\implies\sf 2n = -8 + 12\\\\\\:\implies\sf 2n = 4\\\\\\:\implies\sf n = \dfrac{4}{2}\\\\\\:\implies\underline{\boxed{\sf n = 2}}\:\:\:\:\:\Bigg\lgroup\bf{Required\: number}\Bigg\rgroup\)

\(\therefore\:\underline{\textsf{The required number is \textbf{2}}}.\)

Answer:

26 days were rainy.

Step-by-step explanation:

you said that 4 days were sunny out of the 30 days it rained. the answer is 26

Answer:

1 is 13480851.0638

2 is 20438709.6774

3 is 5812844.0367

Step-by-step explanation:

The proportion of population having score between 65 to 110 is 81.85%.

We have-

Mean of population = 80

Standard deviation of population = 15

We are supposed to find the proportion of the population corresponding to scores between 65 and 110.

According to the formula of the Z-score.

z = (x-μ)/σ

X=interval, μ= population mean ,

σ= standard deviation

Here,x = 65,μ= 80,σ= 15 andz = (65-80)/15z = -1

For Z=-1, From the z-table, the area to the left is 0.1587

Now, we need to find the area in the right  It can be calculated as follows.

z = (110-80)/15 = 2.

Area to the left of Z=2.00 is 0.028

So, the area between Z= -1 and Z= 2 is

= Total Area - (area of population below 65 + area of population above 110)=1-(0.1587+0.0228)=0.8185

The proportion of the population corresponding to scores between 65 and 110 is 0.8185 or 81.85%.

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Answer:

x² + 34x + 104 = 0

x² + 34x = -104

x² + 34x + ((1/2)(34))² = -104 + ((1/2)(34))²

x² + 34x + 17² = -104 + 17²

x² + 34x + 289 = 185

(x + 17)² = 185

x + 17 = +√185

x = -17 + √185

Answer:

The range of baskets per game is 5 baskets.

Sorry, I didn't quite understand the question here is a clear one, it was made by me personally in the geo-gebra application

Answer:

14% of the seats are empty

Step-by-step explanation:

7/50 = ?/100

50×2=100

so 7×2=?

?=14

14/100=14%

The percent of seats that are empty in the hall of 50 seats with 43 being occupied is; 14%

We are given;

Total number of seats in hall = 50

Number of occupied seats = 43

Number of empty seats = 7

Now, we want to find the percent of seats were empty.

This is gotten by;

% of empty seats = (number of empty seats/total number of seast) * 100%

% of empty seats = (7/50) * 100%

% of empty seats = 14%

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Answer:

18y+8x=y

Step-by-step explanation:

pretty sure this is correct

Answer:

Step-by-step explanation:

18 in is the initial length, the y- intercept. b = 18

The rate of change, the slope is 8. m = 8

The function is then:

Examining the figure the length of the side SU is calculated to be

6

Examining the figure, it can be deduced that

XW = VT = 2 (opposite side of a parallelogram)

XV = WT = 2 (opposite side of a parallelogram)

VT = SV, therefore ST = 2 + 2 = 4

UW = WT, therefore UT = 2 + 2 = 4

The figure form similar triangles and the ratios as written below are equal

SU / VW = ST / XW =  UT / XV

SU / VW = ST / XW

SU / 3 = 4 / 2

SU = 3 * 4 / 2

SU = 6

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The width of the rectangular walkway is 3 feet around.

The walkway has a uniform width around the rectangle.

Let the width of walkway be x

The total length of the garden and walkway will be (12+2x) feet

The total width of the walkway and garden would be (8+2x) feet

Area of the garden and the walkway together are 252 square

Let’s express this mathematically:

(8+2x)(12+2x) = 252

Let’s open the brackets;

96+ 16x+ 24x + 4x^2 = 252

4x^2 + 40x + 96 = 252

4x^2 + 40x + 96-252 = 0

4x^2 + 40x - 156 = 0

Let’s divide all through by 10. We have;

x^2 + 10x -39 = 0

X^2 +13x-3x-39 = 0

x(x + 13) -3(x+ 13) = 0

(x-3)(x + 13) = 0

x -3 = 0 or x + 13 = 0

x = 3 or -13

We ignore x = -13 since width cannot be negative in size

Therefore, the width of the rectangular walkway is 3 feet around.

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A mprobability line ranging from 0 to 1 is the following:

The line shows the probability from 0 to 1 where a probability of 0 indicates an impossible event and a probability of 1 indicates a certain event.

Answer:

2n-1

Step-by-step explanation:

Answer:

y=-2/7x-2

Step-by-step explanation:

Just move the 2x to the other side, then divide both sides by 7.

If Nasim invests money in an account paying a simple interest of 1. 3% per year and he invests $70 and no money will be added or removed from the investment, the amount he will have in one year is 70 dollars and 91 cents

Simple interest refers to the interest that is calculated on the original amount or the principal. Simple interest is calculated by:

Interest = P * r * t

where P is the principal

r is the rate of interest (in decimal)

t is the time

Given in the question,

P = $70

r = 1.3% = 0.013

t = 1 year

Interest = 70 * 0.013 * 1

= $0.91

Amount = P + i

where P is principal

i is interest

A = 70 + 0.91

A = $70.91

The amount that Nasim has after 1 year is $70.91.

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The purpose of a scale factor is to create an accurate drawing of either a very large or very small object.

A scale factor can be defined as the ratio of two (2) corresponding length of sides or diameter in two similar geometric objects (shapes) such as equilateral triangles, quadrilaterals, polygons, river, planets in our solar system, etc.

Mathematically, the scale factor of a geometric object (shape) such as a map can be calculated by using this formula:

Scale factor = Dimension of image/Dimension of original figure

Generally speaking, a scale factor is typically used in conjunction with dilation, which is a type of transformation that changes the size of a geometric object, but not its shape. This ultimately implies that, the size of the geometric object would be increased (enlarged) or decreased (reduced) based on the scale factor that is chosen and used.

In this context, we can reasonably infer and logically deduce that the purpose of a scale factor is simply for the creation of an accurate drawing of both very small geometric object and very large geometric object.

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Answer:

9/28 and 32.1%

Step-by-step explanation:

So the sample space consists of all products for (5 * 1, 5 * 2, 5 * 3.... and the same thing for 6, 7, and 8)

This gives you the sample space: {5, 10, 15, 20, 25, 30, 6, 12, 18, 24, 30, 36, 7, 14, 21, 28, 35, 42, 8, 16, 24, 32, 40, 48}.

The size of the sample space is 4 * 6, since for each number (5, 6, 7, 8), there are 6 products (the dice have six numbers). This means the sample space has 24 combinations, you can also verify this by manually counting the sample space.

Now filtering the sample space so you only get a product that is 28 or higher you get: {30, 30, 36, 28, 35, 42, 32, 40, 48} which has 9 possible combinations that have a product greater than or equal to 28. Divide this by the entire sample space and you get a probability of: 9/28, which in decimal form is approximately: \(0.3214\). Multiplying this by 100 gives you: \(32.1\)%

Answer:

a. Right triangle (scalene)

b. Parallelogram

c. Square

d. Concave Quadrilateral

Step-by-step explanation:

a. Three sides makes it a triangle, there is a right angle (box on the angle means it is 90 degrees) and all side lengths are different (scalene)

b. Parallelogram means that there are four sides, and opposite sides are parallel, meaning if they were to continue, they would never touch.

c. Squares have four equal sides with all angles being right angles

d. Four sides makes it a quadrilateral, and one of the interior angles are greater than 180 degrees, making it concave.

I hope this helps, if you need anything explained let me know.

Therefore, the area of the quarter circle of radius 8 cm is 16π square centimeters (or approximately 50.2655 square centimeters if we use a decimal approximation for π).

A circle is a two-dimensional shape that is defined as the set of all points that are a fixed distance (called the radius) from a central point (called the center) in a plane. It is one of the most basic geometric shapes and is often used in a variety of mathematical and scientific contexts. One important thing to note about circles is that they are symmetrical: any line passing through the center of a circle divides the circle into two halves that are mirror images of each other. Circles are commonly used in a variety of contexts, including geometry, trigonometry, physics, engineering, and many other fields. They are also used in everyday life, such as in the design of wheels and other circular objects, the calculation of the areas of circular fields or gardens, and the measurement of circular objects like plates and bowls.

Here,

The formula for the area of a quarter circle is given by:

A = (1/4)πr²

where A is the area of the quarter circle, r is the radius of the circle, and π is the mathematical constant pi (approximately 3.14159).

In this case, the radius of the quarter circle is 8 cm, so we can substitute this value into the formula and simplify as follows:

A = (1/4)π(8 cm)²

A = (1/4)π(64 cm²)

A = 16π cm²

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The probability of drawing a blue counter from the box is 9/20.

To find the probability of drawing a blue counter, we need to determine the number of blue counters in the box and divide it by the total number of counters.

Given that there are 20 counters in total, 6 of them are red, and 5 of them are green. To find the number of blue counters, we can subtract the sum of red and green counters from the total number of counters:

20 - 6 (red) - 5 (green) = 9 (blue)

So, there are 9 blue counters in the box.

The probability of drawing a blue counter is the number of favorable outcomes (blue counters) divided by the total number of possible outcomes (all counters):

Probability = Number of blue counters / Total number of counters

Probability = 9 / 20

Therefore, the probability of drawing a blue counter from the box is 9/20.

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1) 16x - 12(1 + 2x) + 4 is the expression that are equivalent to 16x-12-24x+4.

An expression is a mathematical phrase that can contain numbers, variables, and operators. It can be a combination of these elements and can be evaluated to a specific value or a mathematical function.

An expression can be a simple mathematical statement such as 2x+3, or a more complex one involving multiple operations such as

(3x^2 - 4x + 5) / (2x +1). Expressions are used to represent mathematical operations, equations and relations between variables.

so we need to evaluate option 1 :

16x - 12 -24x +4

=> 16x - 12 -24x +4

the above expression is same as the expression mentioned in the question so option 1 is correct.

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Complete question :

Select all expressions that are equivalent to 16x−12−24x+4. Show or explain your reasoning.

1. 16x - 12(1 + 2x) + 4

2. 40x - 16

3. 4 - 12 + (2x - 3x)

4. -8(x+1)

The critical value for an 80% confidence interval is 1.28.

To find the critical value for constructing an 80% confidence interval for the difference in two proportions, we need to use the z-table.

Step 1: Find the critical value.

Since we want an 80% confidence interval, the remaining area (1 - 0.80 = 0.20) is divided equally into the two tails. Each tail has an area of 0.10. To find the critical value, we look for the z-score that corresponds to an area of 0.10 in the standard normal distribution table.

Using the z-table or a calculator, we find that the z-score for an area of 0.10 (one tail) is approximately 1.28.

Therefore, the critical value for an 80% confidence interval is 1.28.

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Answer:

(5,7   6,2   4,8   1,3) and (7,1  5,3   4,8   6,2)

Answer: 5,7 6,2 4,8 1,3 7,1 5,3 4,8 6,2

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The probability that you will complete your call on the first attempt is 0.375.

The total probability like an experiment refers to the probability that it will take place.

For the stated question-

75% of the time, all of the phone lines at an Amazon returns office are routinely busy.

P(A) = 0.75

The likelihood that your call will be answered on the first try:

P(B) = 1/2 = 0.5

You will successfully complete your call are both probabilities:

P(A ∩ B) = P(A). P(B)

P(A ∩ B) =  0.75 x 0.5

P(A ∩ B) =  0.375

Thus, the probability that you will complete your call on the first attempt is 0.375.

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