Step-by-step answer:
Answer to problems of this kind is the reciprocal of the harmonic mean of the time required.
We need to find the average of the speeds, not the average of the time.
The respective speeds are 1/3 and 1/4.
The average of the speeds is therefore (1/3+1/4)/2 = 7/24 (harmonic mean of the time taken).
The time required is therefore the reciprocal of the unit speed,
T = 1/(7/24) = 24/7 = 3 3/7 minutes, or approximately 3.43 minutes.
u is at (1,-2)
V is at (-6,-6)
using distance formula it is about 8.06 long
so Answer is C
Answer:
28375683nxjs8737trxniu89oiec8n23783287 doo doo
Step-by-step explanation:
Answer:
similar SAS
Step-by-step explanation:
because the angle c has the angle c and sides are cb,ba .
because the angle d has the angle d and slide are df, Fe