2 dogs, 4 horses 1 giraffe and a duck are lying on the bed. 3 chickens are flying over a chair. How many legs are on the ground?.

There are 6720 ways by 8 distinguishable books be placed in 5 shelves.

According to statement

The number of books (n) is 8

The number of shelves (r) is 5

Now, we find the ways by which the 8 books be placed in 5 distinguishable shelves

From Permutation formula

P(n,r) = n! / (n-r)!

Substitute the values then

P(n,r) = 8! / (8-5)!

P(n,r) = (8*7*6*5*4*3*2*1) / (3*2*1)

P(n,r) = 8*7*6*5*4

P(n,r) = 6720

So, there are 6720 ways by 8 distinguishable books be placed in 5 shelves.

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When the first cars hit the roads they were as much (or more) a novelty, as they were the first step in mechanized transportation for the masses. Going for a “Sunday Drive” was an actual activity, not just an analogy for someone taking their sweet time. Vehicles were lighter and slower, and there wasn’t a constant sense of urgency to get from “Point A” to “Point B”.

Fast forward a little over a century and our vehicles have transformed into an average of a 2-ton living room/office/daycare that can cover 95 feet every second traveling down the road.

A lot of talks are occurring about distracted driving, but have you ever thought “I can take my eyes off the road for 2 seconds, it's no big deal”? To change a radio station, to answer a phone call, to look for an item you’ve dropped.  Nearly every single one of us has at some point, even those who use a hands-free device.  

The more times you take your eyes off the road for just those two seconds, the increases your likelihood of an incident

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The simplified expression of (-2)⋅n⋅(8)⋅n⋅(-n) is 16n^3

The expression is given as:

(-2)⋅n⋅(8)⋅n⋅(-n)

Express as products

(-2) * n * (8) * n * (-n)

Multiply -2 and 8

-16 * n * n * (-n)

Multiply the three n's

-16 * -n^3

Evaluate the product

16n^3

Hence, the simplified expression of (-2)⋅n⋅(8)⋅n⋅(-n) is 16n^3

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Answer:

Horizontal line -   y=3

Vertical line -  x=5

Step-by-step explanation:

See both graphs below

Answer:

work hours: independent

salary: dependent

Step-by-step explanation:

The independent variable is what is you're "typically" in control of, or it has a constant increase. For example time, you're not really "in control" of time, but it has a constant change. One example where you are in control, is how much money you deposit into your account, you can slightly control it (you obviously can't deposit more than you have), but it's still somewhat in your control.

The dependent variable is what changes as a result of the independent variable changing. So for example in the previous example, where the money deposited was the independent variable, the dependent variable would be the total amount of money in your account

In this case the number of hours during the week is the independent variable and the salary depends on how many hours you work in the week so that is the dependent variable

Answer:

$23.75

Step-by-step explanation:

first, we know the tie he bought is $12.50, so we want to subtract that from the total ($60). Now we have 47.50 dollars left and if he wants to buy two shirts, we divide $47.50 by 2, which is $23.75. So if the two shirts are the same price, he can pay $23.75 for each shirt.

Answer:

It's 50 degrees and it is acute

Step-by-step explanation:

hope it helps

sorry if I'm wrong

Answer: 47

Step-by-step explanation:

The entrance fee at museum C is modeled by a proportional relationship with the number of visitors.

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

Researching the problem on the internet, the prices for three museums are given, but only one of them has a constant rate of which, which is Museum C, as:

k = 4/3 = 16/12 = 24/18 = 1.33.

Hence the relation for the entrance fee is:

y = 1.33x.

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The constant term does not have the same sign as the second expression, the two expressions are not equivalent. Also, if you substitute a value for x and evaluate each expression, the values will not be equal.

Expression 1: [tex]-0.5(3x+5)[/tex]

Using the distributive property to expand the first expression, we get

[tex]-0.5(3x+5) = -1.5x-2.5\\[/tex]

Expression 2: [tex]-1.5x + 2.5[/tex]

Since the constant term does not have the same sign as the second expression, the two expressions are not equivalent.

Also, if you substitute a value for x and evaluate each expression, the values will not be equal.

Q. Are the expressions –0.5(3x + 5) and –1.5x + 2.5 equivalent? Explain why or why not.

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Answer:Using the distributive property to expand the first expression, you would get -1.5x - 2.5. Since the constant term does not have the same sign as the second expression, the two expressions are not equivalent. Also, if you substitute in a value for x and evaluate each expression, the values will not be equal.

Step-by-step explanation: sample explanation

The fill up for the missing steps are:

Note that we are given:

Based on the definition of perpendicular lines, ΔFHG ~ ΔKJG  are known to be right angles.

So: Δ FHG ≅  ΔKJG due to the fact that all the right angles are congruent.

ΔFHG  and  ΔKGJ are vertical angles and as such, the angle are congruent to angle  ΔKGJ

Based on AA similarity theorem, ΔFHG ~ ΔKJG

Due to the above, the fill up for the missing steps are:

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SOLUTION :-

Since, the pair of angles are supplementary

a + b = 180°

50° + b = 180°

b = 180° - 50°

→ b = 130°

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Answer:

130°

Step-by-step explanation:

supplementary angles are two angles that add up to 180°

(they form a straight line)

So, because we know that ∠b and 50° are supplementary, they must add up to 180:

b + 50 = 180

   - 50     -50             (subtract 50 from both sides to isolate b)

  b    =   130

So, ∠b [angle b] = 130°

hope this helps! have a lovely day :)

According to AAA Chicago, 58 percentage of crashes involving teen drivers are instigated by distracted driving.

What does AAA study tell about the distracted driving of teens?

According to the AAA Foundation for Traffic Safety's review of over 1,700 crash films, distracted driving causes 58 percent of car accidents involving juvenile drivers. According to the foundation, this figure is four times higher than earlier projections derived from police records.

The investigation identified 12 different kinds of distracted driving that contributed to collisions, with passenger interaction accounting for 15% of crashes. Twelve percent of the collisions were caused by using a cellphone, which was followed by reaching for something, looking inside the vehicle, gazing outside while not paying attention to the road, singing or dancing, and looking at something outdoors.

According to the study, young drivers were prey to distracted driving by calls, texts, or other mobile device use for an average of 4.1 seconds in the final six seconds before a catastrophic crash.

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The percentage of winning if 20 winning numbers are randomly selected from numbers 1 to 80 is 12.48%.

Given There are 80 numbers from which 20 numbers are selected randomly in a game of Keno by player and after selection of 20 winning numbers again 20 numbers are selected and player wins if the player has correctly selected 3,4,or 5 of the 20 winning numbers.

Probability is the chance of happening an event among all the events possible.

Probability of winning is calculated as under:

Probability=[tex]C(20,3)C(60,17)/C(80,20)[/tex]

We have taken C(20,3) because player will win if 5 numbers are selected from 20 winning numbers.

We have taken C(60,17) because after selection of 20 numbers 60 numbers will left from 80 and after winning from 3 numbers 17  numbers left and from total 80, 20 numbers are taken.

=C(20,3)C(60,17)/C(80,20)

=(20!/3!17!  * 60!/17!43!)/80!/20!60!

=1140*387221678682300/35353161422121743200

=12.48%

Hence the probability of winning is 12.48%.

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95% of the students have study hours between 10.75 and 13.25 hours and the percentage of the students have study hours that are above 12 is 92%.

Given average of 12 % studying required, population mean of 15 hours, standard deviation of 3 hours.

We have to find the confidence interval for 95% students and the percentage of the students that have studied above 12 hours.

Margin of error=z*σ[tex]\sqrt{n}[/tex]

z value for the p value 0.95 is 1.96.

Margin of error=1.96*3/[tex]\sqrt{22}[/tex]

=5.88/4.69

=1.25

Upper interval=Mean +margin of error

=12+1.25

=13.25

Lower interval=Mean- margin of error

=12-1.25

=10.75

The confidence interval (10.75,13.25).

Now we will calculate the percentage of the students that are above 12.

z value when X=12, z=12-15/15

=-3/15

=-0.2

p value of -0.2 will be =0.5+0.4207=0.9207

=0.9207*100

Percentage=92.07%

Approx=92%.

Hence the confidence interval is (10.75 , 13.25) and 92% students have studied above 12.

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Question is incomplete as it should include  sample size of 22.

Answer:

Looks like an obtuse scalene triangle

Step-by-step explanation:

The angle of the top vertex looks to be obtuse. It if was acute isosceles it would have 2 equal sides. If it was a right triangle it would have a right angle (which it doesn't). It was obtuse isosceles it would have equal sides. So it should be A: Obtuse Scalene Triangle

Answer:

=Rs.10

Step-by-step explanation:

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A piece of cloth costs Rs. 200. If the piece was 5m longer and each meter of cloth costs Rs. 2 less the cost of the piece would have remained unchanged. How long is the piece and what is the original rate per meter?

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Solution

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Let the length of the piece be x metres. Then, rate per metre =Rs.

x

200

New length =(x+5) metres

Since the cost remains same

New rate per metre =Rs.

x+5

200

It is given that

x

200

−

x+5

200

=2

⇒

x(x+5)

200(x+5)−200x

=2⇒

x(x+5)

1000

=2

⇒x

2

+5x=500⇒x

2

+5x−500=0$

⇒x

2

+25x−20x−500=0

⇒(x+25)(x−20)=0⇒x+25=0

orx−20=0⇒x=20orx=−25

But x cannot be negative. So, x=20

Rate per metre Rs.

x

200

=Rs

20

200

=Rs.10

40 gallons of liquid b weighs the same as 30 gallons of liquid a.

A substance's density is defined as its mass per unit volume (more specifically, the volumetric mass density; also known as specific mass). Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho). Density is mathematically defined as mass divided by volume.

where m is the mass, V is the volume and D is the density, which is sometimes roughly characterized as weight per unit volume, while this is incorrect scientifically; this quantity is more precisely known as specific weight.

For liquid a,

8= mass/30

For liquid b,

6=mass/volume

For the two masses to be equal,

240=6*volume

volume=240/6

volume=40

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The actual payment Eric made to the bank at 175.00 for 36 months is 6,300

Actual payment to bank = Monthly payment × Number of months

= 175.00 × 36

= 6,300

Therefore, the actual payment made to the bank is 6,300.

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The number of combinations of pins that can generated without using 19 in beginning are 3645 pins.

Given ten numbers from 0 to 9 and we are require to generate pins such that 19 will not come in beginning.

Total numbers=10

Combinations are the arrangement of numbers, variables, alphabets, etc. to form another numbers or word. In this problem we have to use combinations because there will be many combinations made from 10 numbers to form a 4 digit pin.

[tex]C=n!/r!(n-r)![/tex]

Combination: When 19 is not in beginning, we have to use 2 numbers in the beginning other than 19 so we can use all 9 numbers on thousandths place other than 1 and all the 9 numbers on hundredth place other than 9 and rest 2 places can be filled with any number from all 10 numbers so the combinations will be [tex]9 C_{1}*9C_{1}* 10C_{2}[/tex]=9*9*45=3645 pins.

Hence we can make 3645 pins of ATM from 10 numbers not starting with 19.

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Answer:

F. 23

Step-by-step explanation:

15/2 = 7.5

7.5 dozen eggs per 100 customers

15 + 7.5 = 22.5 which can be rounded to 23

= 23

[tex]P \: \div \: 7 \: = \: 14[/tex]

[tex] \frac{1}{7} P \: = \: 14[/tex]

[tex] \boxed{ \bold{P \: = \: 98}}[/tex]

Answer:

Here you go!

sorry for my writing -_-

Any confusion, you may ask me.

Answer:

(9,21)

Step-by-step explanation:

If you plug in all the pairs, the only one that is true is (9,21).

y=x+12

21=9+12

The above equation is true, and that is why (9,21) is the answer.

Hope this helped! :)

Let [tex]a[/tex] be the first term in the series and [tex]r[/tex] the common ratio. Then the infinite series converges to

[tex]a + ar + ar^2 + ar^3 + ar^4 + ar^5 + \cdots = \dfrac a{1-r}[/tex]

Removing the first three terms from the left side effectively multiplies the right side by 27, so

[tex]ar^3 + ar^4 + ar^5 + \cdots = \dfrac{27a}{1-r}[/tex]

By elimination,

[tex]a + ar + ar^2 = -\dfrac{26a}{1-r}[/tex]

Solve for [tex]r[/tex]. We can eliminate [tex]a[/tex] so that

[tex]1 + r + r^2 = -\dfrac{26}{1-r} \\\\ \implies 1-r^3 = -26 \\\\ \implies r^3 - 27 = 0 \\\\ \implies r^3 = 27 \implies \boxed{r=3}[/tex]

The division of 1987 by 12 when solved gives a quotient of; 165.5

We want to divide 1,987 by 12. This can be expressed as;

1987 ÷ 12

Now, it must be noted that when dividing, we have the divisor and the dividend. Where the number that is being divided is the dividend which is the numerator, while the number by which we divide is the divisor which is the denominator. Thus, in this question, we have;

Dividend = 1987

Divisor = 12

Thus;

1987/12 = 165.5

Thus, we can conclude that when we divide 1987 by 12, we get 165.5

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The amount of money that Davis has in this scenario is; $50

Let the amount of money he has be $X.

Now, if he buys 10 notebooks, he will have $10 left. Thus;

X - 10n = 10  -----(1)

If he buys 15 notebooks, he will be $10 short. Thus;

X - 15n = -10   ------(2)

Subtract eq 1 from eq 2 to get;

-5n = -20

n = -20/-5

n = 4

Thus;

X - 10(4) = 10

X = 10 + 40

n = $50

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Step-by-step explanation:

when given a ratio like this 4:7, it means that one item represents 4 units, and the other 7 units.

let's assume that length is larger than width, so the given 31.5 in are these 7 units.

that means 1 ratio unit is

31.5 / 7 = 4.5 in

the width is 4 units, therefore

width = 4×4.5 = 18 in

the perimeter is

2×length + 2×width = 2×31.5 + 2×18 = 63 + 36 = 99 in

the area is

length × width = 31.5×18 = 567 in²

The value of latoken in 2027 is $4731.

Given that in 2025 digital wallet users at $19900 and in 2027 latoken international clients will be $1000 and the number of monthly paying clients will grow from 30,000 at a 10% monthly rate till 2027 and 0 afterward.

The time esteem of cash states that a sum of cash is esteemed more presently than it'll be within the future. This is often due to the fact that cash can as it was extended by means of speculation. Speculation that's put off could be a missed opportunity. The time esteem of cash equation takes into consideration the amount of cash, its future esteem, the sum it can create, and the time period. The number of compounding periods is additionally a key variable for investment funds accounts.

By 2025=19900

By 2027 =1000 for client

Monthly pay =30000 each month

Rate=10%

At the end  the value is computed below:

AED=30000(1+0.1)¹²

AED=30000(1.1)¹²

AED=30000×3.138

AED=94140

To find the value computation is done below:

19900x=1000×v×AED

x=(94140×1000×140)/19900

x=4.731×1000

x=4731

Hence, the value of latoken in 2027 when digital wallet user at $19,900 by 2025 and latoken international client will be $1000 in 2027 is $4731.

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Answer: 90 degrees

Step-by-step explanation:

An angle inscribed in a semicircle measures 90 degrees.

The congruence theorem that proves that △LON ≅ △LMN is: A. SSS congruence theorem

According to the SSS congruence theorem, if all three corresponding sides of two triangles are congruent, then both triangles are congruent.

In the image given, we have:

This means all three corresponding sides are congruent, therefore, the congruence theorem that proves both triangles are congruent is:

A. SSS.

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Answer: Option 1 or A. SSS

Step-by-step explanation: The congruence theorem that can be used to prove △LON ≅ △LMN is SSS.

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