<span>The 6 means we round the 7 up to the next number which is 8. Thus, we round 4.76 to </span>4.8
I believe the answer is D. 25 and 27
Hope this helps :)
By Pythagoras AB^2 = 12^2 - 6^2 = 108
AB = sqrt 108 = 10.39 to nearest hundredth
The perpendicular from M to DC will be parallel and equal to AB so it = 10.39.
Also AB^2 = CB * DB
108 = 6 * DB
DB = 108/6 = 18
so DC = 18-6 = 12
MD^2 = (1/2*12)^2 + 108 = 144
so MD = 12
-6y+y2+3-4y2-7+1-4y in simplified form is -10y-3y^2-3