-4.9t²+7.5t+1.8=2.1
-4.9t²+7.5t-0.3=0
t=-7.5±√(56.25-4*-4.9*-.3)/-2*4.9
t=-7.5±√(44.49/-9.8
t=(-7.5±6.67)/-9.8
t=-.83/-9.8 = .085 or t= -14.17/-9.8 = 1.446
Answer: y = 0.5x - 2
Step-by-step explanation: 0.5x = half of a number X
I will say there are two ways to solve this problem. The first is, you can use your calculator and calculate it to see which is the closest to 2. The second way is divide it and here is how you do it:
1 is just 1
15/16 = 16 goes into 15 for less than one
17/8 = 8 goes into 17 for more than two so you can rewrite it as

63/33 = 33 does not go into 63 for two
So the answer is 17/8
Answer:
I think the oil pollutes the groundwater
Step-by-step explanation:
My six grade science teacher once taught us something about this, but that was a year ago so I might be wrong, but I'm pretty sure that the oil will spread and then pollute local rivers and streams, by polluting the groundwater.
We need an image to answer the question.