Bradley and Kelly are out flying kites at a park one afternoon. A model of Bradley and Kelly's kites are shown below on the coor
dinate plane as kites BRAD and KELY, respectively:
Which statement is correct about the two kites?
A. They are similar because BR : DB is 1 : 3 and KE : YK is 1 : 3
B. They are similar because BR : DB is 1 : 2 and KE : YK is 1 : 2
C. They are not similar because BR : DB is 1 : 2 and KE : YK is 1 : 3
D. They are not similar because BR : DB is 1 : 3 and KE : YK is 1 : 2
Which statement is correct about the two kites?
A. They are similar because BR : DB is 1 : 3 and KE : YK is 1 : 3
B. They are similar because BR : DB is 1 : 2 and KE : YK is 1 : 2
C. They are not similar because BR : DB is 1 : 2 and KE : YK is 1 : 3
D. They are not similar because BR : DB is 1 : 3 and KE : YK is 1 : 2
2 answers:
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Answer:
The way a proportion is set is as follows;
The Distance from Rio de Janeiro and San Jose Costa Rica is then found as 800 miles
Step-by-step explanation:
The dimension of the distance between Rio de Janeiro and San Jose Costa Rica = 4 inches
The map scale = 1 inch to 200 miles
To figure out how many miles it is or the actual distance from Rio de Janeiro and San Jose Costa Rica, we have;
Therefore, we have;
(4 inches × 200 miles)/(1 inche) = Distance from Rio de Janeiro and San Jose Costa Rica
Which gives;
Distance from Rio de Janeiro and San Jose Costa Rica = 800 miles.
Part A
Given that
Then,
For
, then
Thus,
For
, we have
Part B
Recall that from part A,
Now, at initial position, t = 0 and
, thus we have
and when the velocity drops to half its value,
and 
Thus,
Thus, the distance the particle moved from its initial position to when its velocity drops to half its initial value is given by
Given that
Then,
For
Thus,
For
Part B
Recall that from part A,
Now, at initial position, t = 0 and
and when the velocity drops to half its value,
Thus,
Thus, the distance the particle moved from its initial position to when its velocity drops to half its initial value is given by