Get into form a(x-h)²+k
complete the square
-3x²-18x-31
group x terms
(-3x²-18x)-31
undistribute the -3
-3(x²+6x)-31
take 1/2 of the linear coefient (6) and squaer it
6/2=3, 3²=9
add positive and negative of it inside parenthasees
-3(x²+6x+9-9)-31
complete the square
-3((x+3)²-9)-31
expand
-3(x+3)²+27-31
-3(x+3)²-4 is vertex form
Answer:
c = 2 , d = 3
Step-by-step explanation:
(2y^3)(9y^3) = 18y^6
70 + 1 = 71
Hope I Helped!
Answer:
Step-by-step explanation:
18/60-12/60= 4 miles
just my guess
The answer is 0.2 hope it helps
