What are the disadvantages of fire

2 answers:

4 0

Can you provide more information? Where would the fire be? What type of fire?(wildfire, controlled fire) What is the purpose of the fire?

tankabanditka [31]3 years ago

3 0

The disadvantages of fire is it can produce smoke which is harmful to organisms, it can cause environmental damage (like wildfires), and it depletes oxygen from the atmosphere and releases CO2, which is harmful to oxygen breathing organisms.

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A bag contains 9 green marbles, 7 red marbles, and 5 white marbles. These are the only marbles in the bag. What is the ratio of

MrRa [10]

Step-by-step explanation:

A sack of marbles contains 9 red, 7 green, and 5 blue marbles. If we pull five marbles without replacement, what is the probability that exactly one is green?

The probability of an event occurring is the ratio of the number of ways it can occur to the total number of events in the sample space.

Let’s pretend for a moment that each of the marbles is labeled with a number in addition to its color, so each is distinct. Note that this doesn’t change the probability of the event in question.

First, how many ways are there for the set of marbles drawn to include exactly one green marble? Well, first we would need to choose 1 of the green marbles from the set of 7 , and then in each of those cases, we would need to choose 4 other marbles from the remaining 9+5=14 . Using binomial coefficients to represent these combinations[1] , this gives us

(71)(144)

ways to select exactly one green marble.

Now, how many total possibilities are there? This is just the number of combinations of 5 marbles that can be drawn from a set of 9+7+5=21 . Thus, there are

(215)

total possibilities.

With that, we have the probability as

Ways to draw exactly one green marble in a set of fiveWays to draw any five marbles

=(71)(144)(215)

=10012907≈34.43%

6 0

3 years ago

The scale for a scale drawing is 8 millimeters: 1 centimeter. Which is larger,the actual object or the scale drawing?explain

amm1812

The scale is a representation of what the drawing is to real life. The drawing will tend to be represented by a fixed figure such as 1 cm. In this case for every cm of drawing it is a representation of 8 millimetres in real life, therefore the drawing is bigger than the object.

4 0

3 years ago

Test worth 75 points ; test score of 96%

vfiekz [6]

Presuming the question is "How many points did he miss", you would find the solution by multiplying the amount of possible points by the test score as a fraction. 96% is the fraction $\frac{96}{100}$ . Therefore, you get the equation $75*\frac{96}{100}$ . This is equal to 72, so he missed 3 points, or 75-72 points.

He missed 3 points.

6 0

3 years ago

Read 2 more answers

2. How many factors are represented in the expression (x + 2)(x - 3)?

Valentin [98]

Step-by-step explanation:

(X+2)(x-3)4211334433434

8 0

3 years ago

Kelly and Greta are asked to write an equation for the scenario below. "One person was able to plant 4 trees in the same amount

Alina [70]

Answer: