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a) The sample and the population are given as follows:

b) The numbers are classified as follows:

Population: Collection or set of individuals or objects or events whose properties will be studied.

Sample: The sample is a subset of the population, and a well chosen sample, that is, a representative sample will contain most of the information about the population parameter. A representative sample means that all groups of the population are inserted into the sample.

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Let's call the number of words Trei spelled correctly "x". Then, the number of words she spelled incorrectly is 100 - 60 = 40 words.

Therefore, the ratio of correctly spelled words to incorrectly spelled words is x to 40.

To find the number of words she spelled correctly for each word she spelled wrong, we can simplify the ratio by dividing both values by the greatest common factor:

x / 40 = x / (2 * 20) = x / 2 * 20 / 2 = x / 20.

So for every word Trei spelled incorrectly, she spelled 20 / 1 = 20 words correctly.

(the tail points right on the number line), the mean is higher than the median.

What is median?

The value of the middle observation found after the data are arranged in ascending order is referred to as the median of the data. In many cases, it is challenging to take all of the facts into account when representing something, and in these cases, median is helpful. The median is one of the simples to compute statistical summary metrics. The median is also known as the place average since it uses the data that is in the center of a sequence to determine its value.

Every student learns one of the fundamental principles of statistics, which is that in a skewed distribution, the mean is closer to the tail, in around the second week of introductory statistics.

Every student learns one of the fundamental principles of statistics, which is that in a skewed distribution, the mean is closer to the tail, in around the second week of introduction to statistics. Therefore, the mean is greater than the median in a right-skewed distribution (where the tail points directly to the right on the number line).

Hence, (the tail points right on the number line), the mean is higher than the median.

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Answer:

After 100 days, the amount of the substance will decrease to half its original value, so Yo/2 = 5 mg. The half-life of a substance is the time it takes for half of it to decay or disappear. So, every 100 days, the amount of the substance will be halved until there is none left.

Question is not clear.

Answer:

D all of the above is the answer

Answer:

D) All of the above

Runoff can end up in ponds, streams, and rivers.

Step-by-step explanation:

Hope it helps! =D

A series of terms is referred to as a geometric progression if each next term is produced by multiplying each previous term by a fixed amount. (GP), whereas the common ratio is the name given to the constant value. In the case of the GP 2, 4, 8, 16, 32, 64, for instance, the common ratio is 2.

The phrase that comes after the previous one in the GP, having a common ratio of r = l/[r(n-1)]. S=a/(1 - r), where 0 r 1, is the sum of infinite, or the sum of a GP with infinite terms.

A number progression is said to as a geometric progression if any two consecutive terms is always same.

Hence we have a=3,n=9,r=2

Now [tex]t=ar^n^-^![/tex]

=[tex]3*2^9^-^1[/tex]

=[tex]3*2^8[/tex]

=3×256

=768

∴ The ninth term of the G.P. is 768.

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Answer:

5

Step-by-step explanation:

The greatest common factor between all 3 fruits is 5. There would be 3 apple slices, 4 oranges, and 12 grapes per cup.

Answer: 0.5km per hour

Step-by-step explanation:

Step-by-step explanation:

we only have the graph.

it looks like the y-value from the lowest point (= the absolute minimum) is -16.

The number of artists that are interns is solved to get 77

From the problem, showing circle graph, it can be deduced that the interns occupy 5 percent of the total number

The total number is 1540

5% of 1540 is solved by

= 5/100 * 1540

= 0.05 * 1540

= 77

The number of interns is 77

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Answer:

Represent Wilbur with W and Orville with O

The equation connecting both flights is

W - 120 = O

W = 364 feet

364 - 120 = 246

O = 246

Step-by-step explanation:

wish you best of luck

The expression represents a quadratic polynomial.

The constant term is 1.

The leading term is -x².

The coefficient of the leading term is -1.

What is a polynomial?

A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables.

Given expression is -x² + 1

The variable of the expression is x.

The constant term is 1.

Leading term: The highest power of the variable that occurs in the polynomial is its degree. The term with the highest degree—i.e., the term with the highest power of the variable—is the leading term. The leading coefficient is the leading term's coefficient.

The leading term of the expression is  -x² .

The coefficient of  -x²  is -1.

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The correct form of the equation can be written as y = 35/6 x + 2

We have to know that the equation have been given to us in the point that we have as; y - 5/7 = 5x - 6/6. We would then have to multiply both sides with the LCM of the equations and then we have that;

42(y - 5/7) = 42(5x - 6)/6

6(y - 5) = 7(5x - 6)

6y - 30 = 35x - 42

Collecting the like terms we have that;

6y - 35 x = -42 + 30

6y - 35x = -12

6y = 35x + 12

y = 35/6 x + 12/6

y = 35/6 x + 2

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The number of subsets for R { -15 , -13 , -11 , -9 , -7 , -5 , -3 , -1 } is given by the equation A = 255 subsets

The union of two sets A and B is the set of all those elements which are either in A or in B, i.e. A ∪ B, whereas the intersection of two sets A and B is the set of all elements which are common. The intersection of these two sets is denoted by A ∩ B

The union of two sets is a new set that contains all of the elements that are in at least one of the two sets

The intersection of two sets is a new set that contains all of the elements that are in both sets

Given data ,

Let the relation set be represented as R

Now , the set R = { x|||xis an odd, negative integer and x>−16 }

The number of elements in the set R is given by

R = { -15 , -13 , -11 , -9 , -7 , -5 , -3 , -1 }

So , the number of elements n = 8 elements

The number of subsets of any arbitrary set  is equal to 2ⁿ

This means that the number of proper subsets (which is the number of subset minus the set itself, for finite subsets) is equal to 2ⁿ-1

So , the number of subsets for R = 2⁸ - 1 = 255 subsets

Hence , the solution set is  { -15 , -13 , -11 , -9 , -7 , -5 , -3 , -1 }

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Answer:

[tex]A.\;\; \left(\dfrac{21}{3}\right)^x\\\\\\C. \;\;\dfrac{7^{x}\cdot3^{x}}{3^{x}}\\\\E. \;\;7^x[/tex]

Step-by-step explanation:

[tex]\dfrac{21^x}{3^x} = \left(\dfrac{21}{3}\right)^x[/tex][tex]21 = 7 \cdot 3\\\\So\; \dfrac{21^x}{3^x} = \dfrac{7^x \cdot 3^x}{3^x}[/tex]
So choice A is correct

[tex]------------------------[/tex]

[tex]21 = 7 \cdot 3\\\\So\; \dfrac{21^x}{3^x} \\\\\\= \dfrac{(7\cdot3)^{x}}{3^{x}}=\dfrac{7^{x}\cdot3^{x}}{3^{x}}[/tex]

So Choice C is correct

[tex]------------------[/tex]

[tex]\text{SInce $\dfrac{21}{3} = 7$}\\\\\text{ $\left(\dfrac{21}{3} \right)^x = (7)^x = 7^x$}[/tex]

Therefore choice E is correct

All the other three are incorrect

Answer:

the answer is 8 just divide

Answer:

8 is the answer just divide

Answer:

5.6 is greater than 5.

Answer:

5.6>5

Step-by-step explanation:

5.6 is more than 5 :)

Answer:

5/18

Step-by-step explanation:

We assume they share equally.

5/6 ÷ 3 = 5/6 × 1/3 = 5/18

The expanded form of the given decimal number is 706.039 = 700 + 0 + 6 +0.0 +0.03 +0.009

We break up a number according to its place value and expand it to show the value of each digit.

Given that to write expanded form of 706.039

Expanded Factors Form:

706.039 = 7 × 100  + 0 × 10 + 6 × 1  + 0 × 0.1 + 3 × 0.01 + 9 × 0.001

Expanded Notation Form:

706.039 = 700 + 0 + 6 +0.0 +0.03 +0.009

Hence, the expanded form of the given decimal number is 706.039 = 700 + 0 + 6 +0.0 +0.03 +0.009

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Answer:

The rate of interest required to make Rs. 2500 amount to Rs. 3200 in 7 years is 8.5%. This can be determined by using the information from pa01000192.schoolwires.net, which states that the formula for finding the rate of interest is: Rate of Interest = (Future Value - Present Value) / (Present Value * Time). Applying this formula to the given values gives a rate of interest of 8.5%.

Step-by-step explanation:

Step-by-step explanation:

brackets are missing.

it should look like

lim x→2 (x² + 3x - 10)/(x² - x - 2) =

= (x - 2)(x + 5)/((x - 2)(x + 1)) = (x + 5)/(x + 1) =

= (2 + 5)/(2 + 1) = 7/3

content-wise there is nothing wrong with the argument.

left and right limits are the same.

so, the result is correct.

Answer: 1730

Step-by-step explanation:

subtract 270 from 2000

Answer:

1620 lines / minute.

Step-by-step explanation:

Proportions:

1 minute = 60 seconds

Then:

108 lines ⇒ 4 seconds

A lines ⇒ 60 seconds

A = 108 lines * 60 seconds / 4 seconds

A = 1620 Lines

Answer:

working on a answer one second

Step-by-step explanation:

Situations with constant rates are represented using linear equations.

The parameters that have been provided are:1 third of an ounce of milkshake every second, 20 ounces at first.

A linear equation is denoted by the following:

Where:

The rate is shown by m.

The starting value is represented by b.

The equation that summarizes Lin's circumstance is as follows:

The graph is shown in the attachment.

Since the other equation is missing, the solution cannot be found.

Situations with constant rates are represented using linear equations.

The parameters that have been provided are:

1 third of an ounce of milkshake every second

20 ounces at first.

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The equivalent expression is t - 9

From the question, we have the following parameters that can be used in our computation:

− 3 +t-6

Collect the like terms

So, we have the following representation

t - 3 - 6

Evaluate the like terms

This gives

t - 9

Hence, the expression is t - 9

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Answer:

630

Step-by-step explanation:

36x250 = 9000 ÷ 7 =630

1: Unique solution: the solution: (0, 3)

2: The system have no solution.

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

Two system of equations,

1.  x + y = 3

   x - y = -3

Adding both the equations,

2x = 0,

x = 0

And y = 3.

The solution: (0, 3)

And 2. 5x + y = 7

   10x + 2y = 16

The system have no solution.

Because lines are parallel.

Therefore, all the required solutions are given above.

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Six times the difference of a number and two us forty - two less than the number is 6.

What are the arithmetic calculations?

Arithmetic is the branch of mathematics that deals with basic operations such as addition, subtraction, multiplication, and division, and their properties and applications. Arithmetic calculations are mathematical operations that involve one or more numbers and result in a numerical answer. These operations can be performed using mental arithmetic, pencil, and paper, or with the help of a calculator.

Let the number be x. We can write the given expression as:

6(x - 2) = x - 42

Expanding the left side:

6x - 12 = x - 42

Solving for x:

5x = 30

x = 6

Therefore, the number is 6.

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Step-by-step explanation:

a) The probability that Stephen wins can be estimated by dividing the number of times he wins by the total number of matches:

P(Stephen wins) = 11/27 = 0.407 (or 40.7%)

b) The probability that Natasha wins can be estimated by subtracting the probability of Stephen winning from 1:

P(Natasha wins) = 1 - P(Stephen wins) = 1 - 0.407 = 0.593 (or 59.3%)