the total surface area of a cuboid is 600cm ^2 find LSA

The modification to the system of sampling procedure will affect amount of dissolved oxygen in the water, leading to many consequences and finally resulting in rejection of collected data .



In short, the time of day when a sample is collected is regarded as crucial phase which can adversely  affect the results of a water quality test. The temperature of the water plays a important role which can change throughout the day, and also put lots of stress on  the amount of dissolved oxygen in the water.

Dissolved oxygen is an imperative measure for checking the water quality because it is a survival need for aquatic life. The total amount of sunlight that penetrates  the water seriously affects the amount of dissolved oxygen in the water. In the event  if a sample is acquired at a different time than usual, it may not be accurate to other samples that were taken at different times.

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The complete question is

A local citizen science group is monitoring the water quality of a nearby lake. They gather water samples once a week on Wednesday between the hours of 7 A.M. and 9 A.M. from the same location. One day in August they were unable to sample within that time frame and collected the sample at 3 P.M. How might this modification to the sampling procedure affect the results?                                                          

The statement is false. The optimal allocation of 120 students as 60 for teacher A and 60 for teacher B cannot be determined solely based on the information provided.

Several factors come into play when determining the optimal allocation of students, such as the specific effectiveness decay rate for each teacher as class size increases and the desired level of effectiveness.

To determine the optimal allocation, additional information is needed, including the effectiveness decay rates for both teachers as class size increases and the desired level of effectiveness for the classroom. Without this information, it is not possible to definitively state that the optimal allocation is 60 students for each teacher.

Factors such as the teaching style, experience, and individual capacities of the teachers also play a role in determining the optimal allocation. Therefore, without considering these factors and having more specific information about the effectiveness decay rates and desired effectiveness level, it is not possible to determine the optimal allocation of 120 students between teacher A and teacher B.

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A formula for calculating the area of a triangle is A=1/2(b*h), where b is the length of the base and h is the height  of or length of the altitude, of the triangle.

Identify the base and sketch in the height on each type of triangle.

right triangle - One of the sides that touches the 90-degree angle constitutes the foundation of a right triangle.

The height of a triangle is measured from its base to its highest point, and in a right triangle, that height can be determined from the side that forms a right angle to the base.

acute triangle - Three sides and three vertices make up the fundamental polygon known as the triangle. It has three sides, which results in three interior angles. An acute angle is one that is between 0° and 90° in length. When all three of the triangle's internal angles are acute, the triangle is said to be acute.

obtuse triangle - In an obtuse triangle, the height or altitude from the acute angles is outside the triangle. To find the height of the obtuse triangle, we extend the base as illustrated.

what is a triangle?

Three edges and three vertices make up a triangle, which is a polygon. It is among the fundamental shapes in geometry. Triangle ABC refers to a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear identify a distinct triangle and a distinct plane at the same time.

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Given that a coin is biased such that a head is twice as likely to occur as a tail, the probability of getting a head is 2/3 and the probability of getting a tail is 1/3.

The expected number of tails when this coin is tossed twice can be calculated using the formula:
E(X) = ∑xp(x)
Where E(X) is the expected value, x is the number of tails, and p(x) is the probability of getting x tails.
There are three possible outcomes when the coin is tossed twice:
1) Two tails: The probability of this happening is (1/3) * (1/3) = 1/9

2) One tail and one head: The probability of this happening is 2 * (1/3) * (2/3) = 4/9
3) No tails (two heads): The probability of this happening is (2/3) * (2/3) = 4/9

So the expected number of tails is:
E(X) = (2 * 1/9) + (1 * 4/9) + (0 * 4/9) = 2/9 + 4/9 = 6/9 = 2/3
Therefore, the expected number of tails when this coin is tossed twice is 2/3.

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Answer:

See below!

Step-by-step explanation:

a) 1, 2, 3, 4, 5

The possible outcomes are all the options that there are on the spinner

b) 2

There are only 2 even numbers!

c) \(\frac{2}{5}\) or 0.4

There are 2 out of 5 numbers are even on the spinner so that must be the solution!

d) 1

The spinner has only one multiple of 3, so the possible outcome should also be 1.

e) \(\frac{1}{5}\) or 0.2

There are only 1 out of 5 options which are multiples of 3, so that would be our solution

f) 4

There are 4 prime numbers in the spinner (1, 2, 3, 5), so that would be a possible outcome.

g) \(\frac{4}{5}\) or 0.8

The spinner has 4 out of 5 prime numbers, so our answer would be that!

Hope this helps, have a lovely day! :)

Answer:

7.519*10 power 3 is the answer.

The probability of a Type II error is represented by beta. Thus, the correct answer is option B.

Beta represents the probability of failing to reject the null hypothesis when it is false.

On the other hand, Type I error (alpha) represents the probability of rejecting the null hypothesis when it is true. A Type II error occurs when a false null hypothesis is not rejected. Hence, beta is the probability of making a Type II error.

The null hypothesis is rejected when the p-value is less than or equal to the level of significance, not exceeds it.

The p-value is the probability of obtaining a result as extreme as or more extreme than the observed result when the null hypothesis is true. If the p-value is less than the level of significance, the null hypothesis is rejected, and vice versa.

Hence, the statement "The null hypothesis is rejected when the p-value exceeds the level of significance" is false.

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Answer:

x > 8

Step-by-step explanation:

-6x + 18 < 2 - 4x

-2x + 18 < 2

-2x < -16

x > 8

Answer:

the correct answer is B hope this helps

Answer:

Distributive Property

Step-by-step explanation:

If d represents how many dozens of eggs were ordered, then the expression that represents the number of eggs that were ordered is 12d. Therefore, if we order d dozen of eggs, we will have 12 * d eggs.

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Answer:

x

2

+

2

x

−

3

=

0

x

2

−

3

x

=

0

3

x

2

−

15

x

=

0

Step-by-step explanation:

The crank angle value when the piston is at Top Dead Center (TDC) is 0 radians or 0 degrees. The maximum ratio of the crank radius to the connected length is 0.3.

The crank angle value refers to the angle between the crankshaft and a reference point when measuring the position of the piston. When the piston is at Top Dead Center (TDC), it is at its highest point in the cylinder. The crankshaft is positioned such that the connecting rod is aligned with the crank radius and the piston is at the topmost position. This corresponds to a crank angle value of 0 radians or 0 degrees.

Regarding the maximum ratio of the crank radius to the connected length, this value is given as 0.3. The crank radius is the distance from the center of the crankshaft to the center of the crank pin, and the connected length is the distance from the center of the crank pin to the center of the piston pin. The maximum ratio of 0.3 indicates that the crank radius is 0.3 times the connected length.

It's important to note that these values are specific to the context of the problem statement provided. Different engines or mechanisms may have different values for the crank angle at TDC and the maximum ratio of crank radius to connected length.

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Answer:

Being at a good state of mind

Step-by-step explanation:

Answer:

Peace is a stress-free state of security and calmness that comes when there’s no fighting or war, everything coexisting in perfect harmony and freedom.

Test of significance is  the observed effect due to chance. Option (c) is correct .

What is a significance test?

What makes significance significant?

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Answer:

2.2.1 Area = 12.6 cm²

2.2.2 Area = 12 cm²

Step-by-step explanation:

2.2.1:

The radius of the big circle is half the length of the square = 2.5 cm

The radius of the small circle is half of 3 cm = 1.5 cm

The area of the shaded portion is = Area of big circle - Area of small circle

π × 2.5²-π × 1.5² = 12.6 cm²

2.2.2

To find length BD (the height of the parallelogram) we need to use the Pythagorean theorem:

BD = √(5²-3²) = 4

Area = base x height = 3x4 = 12 cm²

Answer:

B. 6x+18

Hope this helps!

Step-by-step explanation:

The amount of money in Iris's checking account can be modeled by a linear function of the form:

y = mt + b

where y is the amount of money in the account, t is the time (measured in years), m is the rate of interest, and b is the initial amount in the account.

In this case, we have m = 0.04 (since the interest rate is 4% per year) and b = 180 (since that's the initial amount in the account). Therefore, the linear function that models the amount of money in Iris's checking account at any time t is:

y = 0.04t + 180

For example, if t = 5 (years), then the amount of money in Iris's checking account is 0.04 * 5 + 180 = 198 dollars.

Possible answer:

y = 2x + 60

Step-by-step explanation:

First, we will have to find the slope for the line that passes through those points, because parallel lines have the same slope but different y-intercepts. We only need the slope.

Let's use the formula for finding the slope from two points: \(\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\). My work is shown below:

\(\frac{9-1}{2-(-2)} \\\frac{8}{4} \\2\)

The slope is 2, so this will be the slope for our parallel line. Parallel lines can have any y-intercepts, so let's just pick a random one - 60 (yours doesn't have to be this, I just picked one at random). So, one example of an answer to this question would be y = 2x + 60.

Answer:

x < -3/5y+ 30

Step-by-step explanation:

x < -3/5y+ 30 for the first one

addboth sides by 6y then divideboth sides by 10

Answer:

Answer:

The answer is correct

Step-by-step explanation:

Step-by-step explanation:

246 = 1 × 2 × 3 × 41

In the given problem, the sum of \(\frac{4}{6}\) and \(\frac{4}{6}\) is \(\frac{4}{3}\).

The sum is the result of adding two or more numbers or terms. In other words, it is the process of bringing two or more numbers together to produce a new result or total. The symbol for the sum is "+".

The sum can be performed on any kind of number, including whole numbers, integers, rational numbers, real numbers, and complex numbers. The rules for addition are the same for all types of numbers.

To find the sum of \(\frac{4}{6}\) and \(\frac{4}{6}\),

\(\frac{4}{6}\) +  \(\frac{4}{6}\) = 2 \(\times \ \frac{4}{6}\)

        = \(\frac{4}{3}\).

So, \(\frac{4}{6}\) +  \(\frac{4}{6}\) = \(\frac{4}{3}\).

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1.5 half lives times 5730 years per half life is 6590 years.

Fraction:  A number expressed as a quotient, in which a numerator is divided by a denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.

Fraction still left equals 0.5n, where n is the total number of half lives that have already passed.

Fraction left = 0.45, thus you have 0.45 = 0.5n and by figuring out n, you get,

n = log 0.5 + log 0.45

-0.347 = -0.301n

Half lives for n = 1.15 have passed.

1.5 half lives times 5730 years per half life is 6590 years.

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6590 years are equal to 1.5 half lives times 5730 years per half life.

What does "fraction" mean?

A fraction is a number that is expressed as a quotient by dividing the numerator by the denominator. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Where n is the total number of half lives that have already occurred, the fraction of time left is equal to 0.5n.

Fraction left = 0.45, thus you have 0.45 = 0.5n and by figuring out n, you get,

n = log 0.5 + log 0.45

-0.347 = -0.301n

Half lives for n = 1.15 have passed.

1.5 half lives times 5730 years per half life is 6590 years.

a). The distance between A and C is derived to be 42° to the nearest degree.

b). The bearing of the point C with respect to A is equal to 72°

Bearing is usually measured in degrees, with 0° indicating the reference direction (usually North), and increasing clockwise to 360°. It refers to the direction or angle between a reference direction and a point or object.

Let ∆ABC be the triangle formed with bearings so that:

angle B = 30° + 90° + 15°

angle B = 135°

AB = 20km

BC = 25km

a). The distance between A and C is calculated using the cosine rule as follows:

AC² = 20² + 25² - 2(20)(25)cos135° {cosine rule}

AC² = 1025 + 707.1068

AC = √1732.1068 {take square root of both sides}

AC = 41.6186 approximately 42°

b). The bearing of the point C with respect to A is the angle from the north of A to the line AC, so;

bearing of the point C with respect to A = 30° + 42° = 72°

Therefore, the distance between A and C is derived to be 42° to the nearest degree and the bearing of the point C with respect to A is equal to 72°

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The value of x in the diagram is : 75°

An isosceles triangle is a type of triangle with base angles equal and opposite sides equal.

Analysis:

Since GF = EF

∠FGE = ∠FEG = (x - 18)°( base angles of an isosceles triangle are equal)

∠FGE + ∠FEG + ∠GFE  = 180°( sum of angles in a triangle)

(x - 18)° + (x-18)° + 66 = 180

2x -36 + 66 = 180°

2x + 30 = 150

2x = 180 - 30

2x = 150°

x = 150/2 = 75°

In conclusion, the value of x in the diagram is 75°

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The answer is Quantitative because quantitative data mainly deals with the statistic and figures.

As given, Comparing data collected on individuals’ sales and individuals’ attendance records would be an example of what type of data analysis?

Quantitative data analysis involves the use of numerical data to discover patterns and relationships. In the example of comparing individuals' sales and attendance records, the data collected would be numerical and would be analyzed to determine the relationship between sales and attendance. This type of analysis often involves statistical techniques such as regression analysis, correlation analysis, and hypothesis testing. The goal is to gain insights and make informed decisions based on the numerical data, rather than just describing or summarizing it.

Answer is Quantitative.

Reason- Quantitative data mainly deals with the statistic and figures.

Thus, the answer is Quantitative because quantitative data mainly deals with the statistic and figures.

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The answer is Quantitative because quantitative data mainly deals with statistic and figures.

As given, Comparing data collected on individuals’ sales and individuals’ attendance records would be an example of what type of data analysis?

Quantitative data analysis involves the use of numerical data to discover patterns and relationships. In the example of comparing individuals' sales and attendance records, the data collected would be numerical and would be analyzed to determine the relationship between sales and attendance. This type of analysis often involves statistical techniques such as regression analysis, correlation analysis, and hypothesis testing. The goal is to gain insights and make informed decisions based on the numerical data, rather than just describing or summarizing it.

Answer is Quantitative.

Reason- Quantitative data mainly deals with statistic and figures.

Thus, the answer is Quantitative because quantitative data mainly deals with statistic and figures.

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The statement "you should never buy a product from a good salesman" is a subjective statement and cannot be answered as true or false universally.

It depends on various factors such as the product being sold, the sales tactics used by the salesman, and the individual's personal preferences and needs. A good salesman may provide useful information about the product and help the individual make an informed decision, while a bad salesman may use deceitful tactics to pressure the individual into buying something they don't need.

Therefore, it is important to evaluate each situation individually and make a decision based on the specific circumstances.

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Answer:

The quotient of h and 8.

The fraction 4/6 + 8/6 is added to give 2

The addition of fraction is done as follows

check if the denominator of the both fraction are equal. In this case they are equal with a value of 6

4/6 + 8/6

the addition requires adding the numerators

= (4 + 8) / 6

= 12 / 6

= 2

adding the fractions gives a value of 2

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