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3 years ago

I need help please !!!!!!!!

Mathematics

1 answer:

andreev551 [17]3 years ago

3 0

12 is the wrong answer because dinos are usually aliens but science isn’t

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Anyone down to help? 12pts for PRE-ALGEBRA question Use the information in the table for 2–4.

Anni [7]

Answer:

See attached image

Step-by-step explanation:

If the number of blueberries is the x value, and number of calories is the y value, then we can create the ordered pairs (5,4) (10,8) (15,12) based on the data in the table.

Plotting these on the graph is simple - just go to the x value then the y value and plot where these lines meet.

The slope of a line is always the rise over run.

Every time our x increases by 5, our y increases by 4. The rise is 4, and run is 5, so the slope is $\frac{4}{5}$

Hope this helped!

8 0

3 years ago

Ruby has a bird feeder which is visited by an average of 13 birds every 2 hours during daylight hours. What is the probability t

zalisa [80]

Answer:

62.93%

Step-by-step explanation:

We have to solve it by a Poisson distribution, where:

p (x = n) = e ^ (- l) * l ^ (x) / x!

Where he would come being the number of birds that there would be in 40 minutes, we know that in 2 hours, that is 120 minutes there are 13, therefore in 40 there would be:

l = 13 * 40/120

l = 4,333

Now, we have p (x> 3) and that is equal to:

p (x> 3) = 1 - p (x <= 3)

So, we calculate the probability from 0 to 3:

p (x = 0) = 2.72 ^ (- 4.33) * 4.33 ^ (0) / 0! = 0.01313

p (x = 1) = 2.72 ^ (- 4.33) * 4.33 ^ (1) / 1! = 0.0568

p (x = 2) = 2.72 ^ (- 4.33) * 4.33 ^ (2) / 2! = 0.12310

p (x = 3) = 2.72 ^ (- 4.33) * 4.33 ^ (3) / 3! = 0.17767

If we add each one:

0.01313 + 0.0568 + 0.12310 + 0.17767 = 0.3707

replacing:

p (x> 3) = 1 - 0.3707

p (x> 3) = 0.6293

Which means that the probability is 62.93%

5 0

3 years ago

Plz help me on this question

zhuklara [117]

I cant see it please send another pic of it. closer to the screen.

5 0

4 years ago

There are 5 balls, 3 red, and 2 black. What is the probability that a random ordering of the 5 balls does not have the 2 black b

Molodets [167]

Answer:

there are 6 different ways they will not be next to each other

8 0

3 years ago

what is the difference between drawing and constructing something? so for example, what is the difference between drawing a perp

ololo11 [35]

Answer:

Well for constructing your gonna need a compass and measure the length of the line your constructing and a drawing is just a free draw without a compass perpendicular lines are straight on both sides

6 0

3 years ago