21 and -4, because -4x21 = -84, and 21+-4 (– 4) = 17
<u> P = 2(L +W)</u>
Divide each side of the equation by 2 : P/2 = L + W
Subtract W from each side : <em> P/2 - W = L</em>
Answer:
h = 18( I might be wrong though)
Step-by-step explanation:
If BE and ED are perpendicular, that means this angle is supplementary.
BEF = 3h-12
FED = 2h - 23
BEF + FED = 90
3h-12 + 2h - 23 = 90
5h - 35 = 90
5h = 90
h = 18 degrees
The graph below shows the velocity of two bicyclists A and B in arace from time t=0 to time t=16. The racers start side by side andtravel along the same road. The race begins at time t=0 and at timet=16 one of the racers completes the course.