now.. if you notice, the exponent for the 1st term, is dropping on each term subsequently, start with highest, 9 in this case, and drops drops drops, till on the last term, will be 0
the exponent for the second term, starts off at 0, and goes up up and up on each term
that part is simple... now, the coefficient for them
the first one will have a coefficient of 1, so we can take a closer look at the 2nd instead
the coefficient for the second is 1* 9/ 1
(1) the coefficient of the current term, (9) the exponent of the 1st term, and (1) the exponent of the 2nd term on the next term
for example, how did we get 84 for the 4th term? (36 * 7) / 3 = 84
and so on for all subsequent terms
Answer:
k - 3
Step-by-step explanation:
In this expression, only 8k and 7k can be subtracted. This is because they have the same variable, meaning they are "like terms".
8k - 7k - 3 = 1k - 3
Answer:
2 minutes
Step-by-step explanation:
The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel. Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:
Since distance = rate times time, time = distance / rate. In this particular case we have:
2 km
time = distance / rate = ------------------- = (1/30) hr
60 km/hr
(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes
Answer:
7.2 minutes per mile
Step-by-step explanation:
If we assume the description means y = 7.2x, the rate 7.2 means each increase in x of 1 mile results in an increase in y of 7.2 minutes. That is the rate is 7.2 minutes per mile.
Your answer would be ~ 305.83 !!
