Answer:
the rate of dissolving may be fast or slow
A,B,C,D,E,F,are to give speeches to the class . The order of speeches is determined by randomly selection. Compute the probability that E will speak first and Cwill speak fifth
Answer:
1/30
Explanation:
To solve this we lay out the order of speeches and the number of people to fill in that position. We first find the number of desirable outcomes
Conditions:
- E speaks first
- C speaks fifth
In the first position, there is only one option which is E.
In the second position, we can choose from 4 others (E is in first, and C is reserved for fifth)
In the third, we can choose from 3 others (4 - 1)
In the fourth, 2 choices (3 - 1)
In the fifth, there is only one choice as it needs to be speaker C.
In the sixth is the remaining person from the 2 choices for fourth position (2 - 1)
Now we multiply to get the number of desirable outcomes
1x4x3x2x1x1 = 24
After that, we get the total number of outcomes. To find the probability, we divide the number of desirable outcomes by the total number of outcomes.
The total number of outcomes is 6! = 720
So:
24/720 = 1/30 simplified
Alfred Wegener suggested that earth’s continents are moving. Which evidence supports this theory?
Continental Drift was his theory
The continents were separating farther and farther from each other so he came up with the theory that were drifting away from each other but didn’t have proof of how
Answer:
Explanation:
From looking at maps over the years, Alfred Wegener observed that the countries/continents could fit together and they almost looked like pieces of a puzzle that connect to the greater picture of things (we refer to Pangea) Also, he proved his theory of continental drift from various pieces of evidence. For example, one of the biggest pieces of evidence were the fossils found on different continents. For example, an organism that wasn't even native to a country was found there through old fossil remains.
Roosevelt would not measure a man’s worth by his successes, but rather by the number of attempts he has made to accomplish something
Correct Answer: True