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3 years ago

JEEEEEEEEEEEEEEEEEEELPPPPP

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

18.84

Step-by-step explanation:

The formula for length of the circle is =

$\pi \times d$

Therefore

$\pi \times d = 3.14 \times 12 \\ = 37.68$

Therefore the Arc length =37.68/2

=18.84

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15 points and crown <br> solve by factoring (x+6)(2x-5)=0<br> I am confused

Reika [66]

Remember, in order for this equation to be true either one of the polynomials has to equal 0
So:

-> x+6 = 0

x=-6

-> 2x-5 = 0

2x= 5

x= 5/2

So the answer is x=-6 and x= 5/2.

Hope this helps!

7 0

3 years ago

The equation of line r is y = 1/2 * x + 1 line runs parallel to line r and passes through (2, 5) what would be the equation of l

Yakvenalex [24]

Answer:

x - 2y + 8 = 0

Step-by-step explanation:

that is the procedure above

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3 years ago

The Eco Pulse survey from the marketing communications firm Shelton Group asked individuals to indicate things they do that make

Bad White [126]

Answer:

a) There is a probability of 42% that the person will feel guilty for only one of those things.

b)There is a probability of 46% that a randomly selected person will not feel guilty for either of these reasons

Step-by-step explanation:

This probability problem can be solved by building a Venn like diagram for each probability.

I say that we have two sets:

-Set A, for those people that will feel guilty about wasting food.

-Set B, for those people that will feel guilty about leaving lights on when not in a room.

The most important information is that there is a .12 probability that a randomly selected person will feel guilty for both of these reasons. It means that $P(A \cap B) = .12.$

The problem also states that there is a .39 probability that a randomly selected person will feel guilty about wasting food. It means that P(A) = 0.39. The probability of a person feeling guilty for only wasting food is PO(A) = .39-.12 = .27.

Also, there is a .27 probability that a randomly selected person will feel guilty about leaving lights on when not in a room. So, the probability of a person feeling guilty for only leaving the lights on is PO(B) = 0.27-0.12 = 0.15.

a) What is the probability that a randomly selected person will feel guilty for either wasting food or leaving lights on when not in a room?

This is the probability that the person feels guilt for only one of those things, so:

P = PO(A) + PO(B) = 0.27 + 0.15 = 0.42 = 42%

b) What is the probability that a randomly selected person will not feel guilty for either of these reasons

The sum of all the probabilities is always 1. In this problem, we have the following probabilies

- The person will not feel guilty for either of these reasons: P

- The person will feel guilty for only one of those things: PO(A) + PO(B) = 0.42

- The person will feel guilty for both reasons: PB = 0.12

`P + 0.42 + 0.12 = 1

P = 1-0.54

P = 0.46

There is a probability of 46% that a randomly selected person will not feel guilty for either of these reasons

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3 years ago

Consider a nuclear power plant that produces 1200 MW of power and has a conversion efficiency of 34 percent (that is, for each u

Pachacha [2.7K]

Answer:

Fuel used = 111,303,473,760 MJ/year

Step-by-step explanation:

Power production = Fuel energy * Efficiency

1200 MW = Fuel energy * 0.34

Fuel energy = 1200 MW / 0.34 =3529.41 MW

This means it consumes 3529.41 MJ/s.

Per year, it operates 365 days, 24 hours a day, 3600 seconds an hour.

To calculate the fuel used annualy we have to multiplicate by all these factors

Fuel used = 3529.41 MJ/s * 3600 s/hour * 24 hours/day * 365 days/year

Fuel used = 111,303,473,760 MJ/year

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3 years ago

Part C Now try this one. Write a description of the partitioned function using known function types, including transformations.

Sever21 [200]

Answer:

Following are the function description to the given question:

Step-by-step explanation:

In the given-question, three functions are used, that can be defined as follows:

In function 1:

This function is also known as the modulus on the absolute value function, for example:

$f(x)=| x| \left \{ {{x , \ \ \ x>0} \atop {-x, \ \ \ \x$

In the given in the above graph, that is $f(x) = -x , \ \ x$

In function 2:

In this function, It is an algebraic function that is $y=x^2$

It is also a part of the quadratic polynomial function, and its value is $y=x^2 , \ \ \ x> 0$

In function 3:

In this function, it is the cubic polynomial equation that's value is $y=x^3$

In the graph its value is:

$y=-x^3\\\\and \\ \\\to y= f(x) \\\\ \to y=-f(x)\\$

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3 years ago