(03.06 MC) triangle ABC with segment BD where point D is between points C and A, BC equals x, BD equals y, CD equals w, DA equals z, and BA equals v What expression represents the value of y? y equals the square root of quantity x times v end quantity y equals the square root of quantity w times z end quantity y equals the square root of quantity w times the sum of w plus z end quantity y equals the square root of quantity z times the sum of w plus z end quantity

The answer is y equals the square root of quantity w times z

Step-by-step explanation:

This is the only answer that actually makes sense to me.  First I used distance formula and then figured out I was wrong... I am actually taking this test right now.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

answer: x=60