5x²+13x-4-17x²-7x+19+15x²+5x-21x-7=
=5x²+15x²-17x² +(13x-7x+5x-21x) -4-7+19=
=3x²-10x+8
1/u = 1/f -1/v
1/v = 1/u + 1/f
I believe it is 3.75 miles. 5 2/5=5.4 and 1 11/25=1.44. 5.4/1.44=3.75.
Answer:
2.
Step-by-step explanation:
the coin could be heads or tails, but knowing me prolly 3 because I would lose the coin when I flip it.
