The flagpole is 20 ft high and casts an 8 foot shadow, the oak tree casts a 12 foot shadow. How tall is the oak tree?

Answer:

A=3

B=4

C=81

Step-by-step explanation:

Just did it

Answer:

a =

✔ 3

b =

✔ 4

c =

✔ 81

Answer:

(1) Cluster sample

(2) Systematic sample

(3) Random sample

(4) Systematic sample

(5) Stratified sample

Step-by-step explanation:

A simple random sample is a part of a statistical population in which every individual of the population has an equal probability of being selected.

Assigning each individual of the population a unique number and using a computer or random number generator for selection is a procedure to select a simple random sample.

Stratified sampling is a kind of sampling in which whole-population is distributed into homogeneous subgroups before one takes a sample. These subgroups are called strata which is mutually exclusive or related.

In this process the population members cannot be excluded.

Cluster Sampling is a method to randomly select samples from a population that is too enormous for simple random sampling.  

Using cluster sampling, the experimenter distributes the entire-population into distinct groups, called clusters. Then, a simple random sample of clusters is chosen from the population. Then the experimenter performs the analysis on data from the sampled clusters.

Systematic sampling is a kind of probability sampling method in which individuals from a larger population are nominated according to a random initial point and a static, periodic interval.

Consider all the definitions of different types of samples.

(1) Cluster sample

(2) Systematic sample

(3) Random sample

(4) Systematic sample

(5) Stratified sample

Using sampling concepts, it is found that the classifications are:

1. Cluster

2. Systematic

3. Random

4. Systematic

5. Stratified

Samples are classified as:

Item 1:

Teachers divided into groups according to their school, and all teachers are interview, hence Cluster sampling is used.

Item 2:

Every 7th customer, that is, every kth customer, hence Systematic sampling is used.

Item 3:

Random numbers, hence, Random sampling is used.

Item 4:

Every 100th customer, that is, every kth customer, hence Systematic sampling is used.

Item 5:

Four groups, then 10 for each group are selected, that is, a few members, hence Stratified sampling it used.

A similar problem is given at https://brainly.com/question/25122507

Answer:

72

Step-by-step explanation:

An hour is 60 minutes.

Multiply the amount of tasks to the amount of times 20 goes into 60 (60/20).

3×3= 9

Once you have the amount of tasks finished in an hour (9 tasks), you will multiply 8 hours by 9 tasks.

8×9= 72

Answer:

4,374

Step-by-step explanation: solve the exponent first then do the multiplication

Through my trials and tribulations I have decided that the answer is.

Y E S

Answer: 258

Step-by-step explanation: 270-12=w

The width of the wall is 9 feet and length is 30 feet.

The perimeter of a rectangle is the sum of all the sides.

According to the given question the area of a rectangular wall of a barn is 270 square feet. It’s length is 12 feet longer than twice it’s width.

Assuming the width of the rectangular wall to be x feet.

∴ From the given data length is 2x + 12 feet.

We know area of a rectangle is product of it's length and width.

So, { x × ( 2x + 12 ) } = 270.

2x² + 12x = 270.

2x² + 12x - 270 = 0

x² + 6x - 135 = 0

x² + 15x - 9x - 135 = 0

x(x + 15) - 9(x + 15) = 0

( x + 15 ) = 0 OR ( x+ 9 ) = 0

∴ x = -15 OR x = 9.          ( we know length can note be negative )

So, Width of the rectangle is 9 feet and length is 30 feet.

learn more about rectangles here :

https://brainly.com/question/15019502

#SPJ2

Answer:

Skkskskswks....................

Step-by-step explanation:

???

Answer:

sksksksksksksksk.

Step-by-step explanation:

equals visco girl.

Answer: 9.42 cm.

Step-by-step explanation:

Length of arc is given by :-

[tex]l= \dfrac{x}{360}\times2\pi r[/tex] , where r= radius and x= central angle subtended by arc.

As per given , we have

[tex]x=30^{\circ}\\\\ r=18\ cm[/tex]

Then, the length of arc will be :

[tex]l=\dfrac{30}{360}\times2(3.14)(18)\\\\=\dfrac{1}{12}\times113.04\\\\=9.42\ cm[/tex]

Hence, the length of arc is 9.42 cm.

The length of an arc of a circle with radius 18cm is; L = 9.426cm

The length of an arc can be evaluated using the formula;

Hence, the length of the given arc is;

Read more on length of an arc;

https://brainly.com/question/2005046

The answer to your questions is x8/15. Hope this helps!

Answer:

Step-by-step explanation: 12 ur welcome

Speed is Distance traveled/time, then 12 kilometer per min is the cruising speed of airplane when airplane cruises 1 kilometer in 1 12 of a minute.

Speed=Distance traveled/time

An airplane cruises 1 kilometer in 1 12 of a minute. We need to find the speed.

Given distance=1 km

time=1/12 min

We need to find speed.

Speed=Distance traveled/time

=1/(1/12)

=1*12/1

=12kilometerperminute

Therefore 12 kilometer per meter is the speed required.

To learn more on speed click:https://brainly.com/question/28224010

#SPJ2

Answer:

term

Step-by-step explanation:

term is a constant, variable, or the product of a constant and variables.

Term

An algebraic expression is one that is obtained by performing a finite number of algebraic operations on symbols that represent numbers.

An algebraic expression that is a number, a variable, or a product or quotient of numbers and variables is known as a term.

So,

A term is a constant, variable, or the product of a constant and variables.

For more information:

https://brainly.com/question/19585043?referrer=searchResults

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is [tex]s = 12 \ gallons[/tex]

Step-by-step explanation:

From the question we are told that

  The  number of milk drinkers considered is  [tex]m = 100[/tex]

   The  number of skim milk drinkers [tex]n = 50[/tex]

     The  gallons of milk supplied is  q =  23 gallons

Generally the proportion of skim milk drinkers is mathematically represented as

    [tex]p = \frac{n}{m}[/tex]

    [tex]p = 0.5[/tex]

Generally the gallons of milk order that is skim milk is mathematically represented as

       [tex]s = 0.5 * 23[/tex]

=>     [tex]s = 12 \ gallons[/tex]

Answer:

1/12

Step-by-step explanation:

There are 36 possible outcomes

Out of the 36 there are only 3 where the sum is 4 that is (1,3),(2,2),(3,1)

Hence probability= 3/36 which equals to 1/12

Answer:

you just add them together

Answer:

y > 2x - 4

Step-by-step explanation:

Step 1: Write out inequality

4x - 2y < 8

Step 2: Subtract 4x on both sides

-2y < -4x + 8

Step 3: Divide both sides by -2

y > 2x - 4

Combine the same numbers and do the opposite of either subtraction or addition.

Then, multiply or divide with the coefficient.

Answer:

see below

Step-by-step explanation:

⇒  7x - 17 = 4x + 1

combine like terms

7x - 4x = 1 + 17

3x = 18

x = 18/3

x = 6

⇒  -x + 5 = x - 11

combine like terms

- x - x = - 11 - 5

-2x = -16

x = 16 / 2

x = 8

⇒  5x + 8 = 7x + 2

combine like terms

5x - 7x = 2 - 8

- 2x = - 6

x = 6 / 2

x = 3

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 11}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ - 2(3 - 2x) = - 6x + 8(x + 2)}[/tex]

Distribute -2 through the parentheses

Similarly, Distribute 8 through the parentheses

[tex] \dashrightarrow{ \sf{ - 6 + 4x = - 6x + 8x + 16}}[/tex]

Collect like terms

[tex] \dashrightarrow{ \sf{ - 6 + 4x = 2x + 16}}[/tex]

Move 2x to left hand side and change it's sign

Similarly, move 6 to right hand side and change it's sign

[tex] \dashrightarrow{ \sf{4x - 2x = 16 + 6}}[/tex]

Collect like terms

[tex] \dashrightarrow{ \sf{2x = 16 + 6}}[/tex]

Add the numbers : 16 and 6

[tex] \dashrightarrow{ \sf{2x = 22}}[/tex]

Divide both sides by 2

[tex] \dashrightarrow{ \sf{ \frac{2x}{2} = \frac{22}{2} }}[/tex]

Calculate

[tex] \dashrightarrow{ \sf{x = 11}}[/tex]

Hope I helped!

Best regards! :D

Answer:

So the way to  express a vector( [tex]v =  2i - 2j - 2k[/tex]) as a product of its length and direction is

        [tex]v  =    |v| u =  \sqrt{12} (\frac{2}{ \sqrt{12} } , -\frac{2}{ \sqrt{12} }, - \frac{2}{ \sqrt{12} })[/tex]

Step-by-step explanation:

Generally a vector  is  expressed as a product of its length and direction using the formula below  

           [tex]v  =  |v|\cdot u[/tex]

Here v is the vector

        |v| is its magnitude (length)

         u is its unit vector (direction)

Now let take an example

Let  

     [tex]v =  2i - 2j - 2k[/tex]

The magnitude is mathematically evaluated as

          [tex]|v| =  \sqrt{ 2^2  + (-2)^2 +  (-2)^2 }[/tex]

         [tex]|v| =  \sqrt{12}[/tex]

The unit vector is mathematically represented as

        [tex]u  =  \frac{v}{|v|}[/tex]

        [tex]u  =  \frac{ <2 , -2 , -2>}{\sqrt{12} }[/tex]

    [tex]u =  \frac{2}{ \sqrt{12} } , -\frac{2}{ \sqrt{12} }, - \frac{2}{ \sqrt{12} }[/tex]

So

    [tex]v  =    |v| u =  \sqrt{12} (\frac{2}{ \sqrt{12} } , -\frac{2}{ \sqrt{12} }, - \frac{2}{ \sqrt{12} })[/tex]

Answer: Propene (C3H6)

Step-by-step explanation: Using the formula CnH2n to solve for Alkenes, propane is the only molecule that has an alkene, with twice as many hydrogen and carbon Atoms

The Alkene is the propene having Molecular formula [tex]C_3H_6[/tex].

Alkenes are acyclic (branched or unbranched) hydrocarbons having one carbon-to-carbon double bond (C=C) and the general molecular formula CnH2n

Given:

For First, Carbon have 10 molecules then alkene have 2(10) = 20 Hydrogen.

So, (C10H22) is an Alkane.

Second, Carbon have 4 molecules then alkene have 2(4) = 8 Hydrogen.

So, (C4H10) is an Alkane.

Third, Carbon have 2 molecules then alkene have 2(2) = 4 Hydrogen.

So, (C2H6) is an Alkane.

Fourth, Carbon have 3 molecules then alkene have 2(3) = 6 Hydrogen.

So, (C3H6) is an Alkene.

Learn more about Alkene here:

https://brainly.com/question/13910028

#SPJ6

Step-by-step explanation:

Answer:

x= -1, x=4

Step-by-step explanation:

5x²-15x-20

5x²-20x+5x-20=0

5x(x-4) +5(x-4)

(5x+5) (x-4) =0

5x=-5 or x=4

x= -5/5. or x=4

x= -1 or x=4

Answer: D

Step-by-step explanation: becasue i did it

Answer:

12 is 6 times larger than 2

Step-by-step explanation:

2*6=12

Answer:

12 is 6 times larger than 2.

Step-by-step explanation:

12, 6, and 2 are all common. Let's say we multiply 2 by 6, we get 12. We divide 12 by 2, we get 6.

Answer: $9,000,000

Step-by-step explanation:

Probability is simply defined as the chance or likelihood that an event is going to happen or occur.

The probability that script 1 will be a success, but its sequel will not is the success of script 1 added to the failure of its sequel.

The total payoff will simply be the sum of the individual layoffs of both the success and the failure. This will be:

= $10,000,000 + (- $1,000,000)

= $10,000,000 - $1,000,000

= $9,000,000

Using conditional probability, it is found that there is a 0.14 = 14% probability that script 1 will be a success, but its sequel will not.

Conditional Probability

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

In this question:

Then:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

[tex]P(A \cap B) = P(A)P(B|A)[/tex]

[tex]P(A \cap B) = 0.7(0.2)[/tex]

[tex]P(A \cap B) = 0.14[/tex]

0.14 = 14% probability that script 1 will be a success, but its sequel will not.

A similar problem is given at https://brainly.com/question/14398287

Answer:

c. Korey will see an overall profit in his third year of business

Step-by-step explanation:

His cost for first year

= 12500+8000

=$ 20500

Profit first year= $12000

Net Profit first year= -$8500

Second year cost= $8000

Profit second year

= 12000+12000(0.06)

= 12000+720

=$ 12720

Net profit second year = -8500+12720-8000

= -3780

Third year

Cost = $8000

Profit= 12720+12720(0.06)

Profit=$13483.2

Net profit= 13483.2-8000-3780

Net profit= $1703.2

Korey will see an overall profit in his third year of business.

The amount of money earned by any seller on the cost price is called the yield.

His cost for the first year

=  12500 + 8000

=$ 20500

Profit first year= $12000

Net Profit first year= -$8500

Second year cost= $8000

Profit second year

= 12000+12000(0.06)

= 12000+720

=$ 12720

Net profit second year = -8500+12720-8000

= -3780

Profit for Third-year

Cost = $8000

Profit= 12720+12720(0.06)

Profit=$13483.2

Net profit= 13483.2-8000-3780

Net profit= $1703.2

Therefore Korey will see an overall profit in his third year of business.

To know more about profit follow

https://brainly.com/question/25623677

#SPJ5

Answer:

-3

Step-by-step explanation:

27-30

Answer:

-3

Step-by-step explanation:

3³-5(6)

3*3*3-30

27-30

-3

Answer:

Management                Farming                  Construction

Step-by-step explanation:

Answer:

3x - 8

Step-by-step explanation:

Step 1:

( 4x + 6 ) + ( - x + 2 )

Step 2:

4x - 6 + - x - 2

Step 3:

3x - 6 - 2

Answer:

3x - 8

Hope This Helps :)

Answer:

(3x+8)

Step-by-step explanation:

(4x+6)+(-x+2)

combine like terms

(4x+-x)+(6+2)

you would end up with

(3x+8)