Sebastian drove for 2.2 hours at an average rate of 43.5 miles per hour. He calculates that he drove 95.7 miles. He knows the answer should be near 80, because 40 times 2 is 80. Which best explains Sebastian’s actual solution?
1. The actual product is reasonable because it is near 80 but greater than 80. Both factors were rounded down, making the estimate lower than the actual product.

2. The actual product is unreasonable. It should be near 80 but less than 80 because both factors were rounded down.

3. The actual product is reasonable because the estimate and actual answers both have two places to the left of the decimal.

4. The actual product is unreasonable because the estimate has zero places to the right of the decimal and the actual product has one decimal place to the right of the decimal.

Sebastian drove 95.7 miles thus making his calculations more accurate than his estimate.

Explanation: His estimate is not very far off; it is lower than his actual distance because he rounded the amount of time and speed down/. Distance is equal to speed multiplied by time. D = S × T . So his time (2.2 hours) multiplied by speed (43.5 mph) equals 95.7

1

Explanation:

The actual product is reasonable because the estimated answer was rounded down, but not very much.

The hours lost 0.2 hours.

The distance lost 3.5

There are still 2 hours left, which is the majority of the time.

There are still 40 miles left which is a vast majority of the distance.

Using d = R * T

R = 40 miles / hour (not 43.5 miles hour)

T = 2 hours (not 2.2 hours)

So 40 * 2      = 80 is a good estimate.

He knows he's gone further because he rounded down in both cases.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

the answer is academic paper

and the second should be college professor