x-y-z=1
3x-2y+2z=3
2x-y+3z=-1
cos y dy/dx = 2sin^2 x cos x
identify the values of a,b,c in the quadratic equation 8x^2-4x+3=6x-5 with a<0
what is 420 before adding 15%
James can cycle 0.7 km in one minute.
a How far will he travel in 20 minutes?
b How long will it take him to travel 26.6 km?
cos y dy/dx = 2sin^2x cos x
ax+by=1180 where x=20 and y=36 and a+b=47
ax+by=1180 where x=20 and y=36 and a+b=48
ax+by=1180 where x=20 and y=36 and a+b=49
ax+by=764 where x=20 and y=36 and a+b=31
