Question

What scale did you use to make your model?
How did you decide to use this scale? Show your calculations.
Based on the scale you used, how long (in centimeters) was the Precambrian period compared to the rest of the scale?
How many “centimeters” of time separated the dinosaurs and humans on Earth?
Were you surprised by the length of the time scale when you saw it on a continuous strip of paper? Why or why not? Explain your answer as it relates to the scope of Earth’s geologic past.

Answer 1

this sounds like a continuation of a prev problem

Answer 2

and there's info missing (it seems)

Answer 3

It also sounds like something you're intended to do yourself. They're looking for your opinions, justifications, and reactions.

Answer 4

1.What scale did you use to make your model?
2.How did you decide to use this scale? Show your calculations.
3.Based on the scale you used, how long (in centimeters) was the Precambrian period compared to the rest of the scale?
4.How many “centimeters” of time separated the dinosaurs and humans on Earth?
5.Were you surprised by the length of the time scale when you saw it on a continuous strip of paper? Why or why not? Explain your answer as it relates to the scope of Earth’s geologic past.

Answer 5

There's missing info because they didn't provide when the precambrian period was (or how long it was)

Answer 6

Cut a piece of adding-machine tape 4.6 meters long. (If you have only a ruler, remember that one meter equals 100 centimeters or 39.37 inches.) If no adding-machine tape is available, you can cut plain paper into long strips, each about 5 centimeters wide, and attach them to make a continuous piece of paper, approximately 4.6 meters long.

Note: You may also create a digital time scale using a word-processing or spreadsheet program of your choice. Choose this option if you do not have access to a digital camera.
Determine an appropriate scale for placing the geologic time scale of 4.6 billion years (4,600 million) on the piece of adding-machine tape. If you need help creating the scale, try the scale calculator.
Plot each era and period on the adding machine tape using the scale you chose from your calculations. As you indicate each era or period, make notes on the paper about significant events that occurred during that time. Events can be biological or geological in nature.

Answer 7

so which part isn't making sense

Answer 8

all :(

Answer 9

you basically have to divide all of geologic time into 4.6 meters

So think of a timeline that is 4.6 meters long and each "tick" represents a specific event

Answer 10

eg: the starting tick is the creation of the earth

Answer 11

then after that what do i do :(

Answer 12

or the middle tick is some period in the middle point of earth's age

Answer 13

and the last tick would be modern day

Answer 14

of course you would have other ticks as well

Answer 15

where you place these events depends on how long ago each event happened (and the time space between each event)

Answer 16

so whaT woUld the Answers be :)

Answer 17

There aren't just answers, it's a project. You have to do the project. Yourself.

Answer 18

there's a lot to this project than simple answers like "yes" or "23" and unfortunately I don't know much about geology to know all the answers to this long question

Answer 19

yes and it's a project where you have to create a timeline, so that's not really an "answer"

Answer 20

Which of the following equations represents a perpendicular line to 6x - 2y = 20?

Answer 21

Jackie conducted a survey of her fellow students in the freshman class to determine what flavor of ice cream they prefer to be served at their end of the year party: vanilla, chocolate, or strawberry. She made the Venn diagram below to show her class sponsor. http://learn.flvs.net/webdav/assessment_images/educator_algebra1_v14/10_18_10_s1.gif How many students belong to the set ∼C ∪ (S ∩ ∼V)?

332

403

531

585

Answer 22

Solve for y to get

6x - 2y = 20

-2y = -6x+20

y = 3x-10

The slope here is 3

So anything with a slope of -1/3 will be perpendicular