Are you asking about the sigma sign used for sequence additions?
Recall that distance = speed times time. Thus, time = distance / speed.
Here:
time = distance / speed = 0.8 km / 12 km/hr = 1/15 hr.
Note that 1/15 hr = 1/15 (60 min) = 4 minutes
This all completely depends on the variable
Answer:
2 (x + 2) (x - 1)
Step-by-step explanation:
Simplify the following:
2 x^2 + 2 x - 4
Factor 2 out of 2 x^2 + 2 x - 4:
2 (x^2 + x - 2)
The factors of -2 that sum to 1 are 2 and -1. So, x^2 + x - 2 = (x + 2) (x - 1):
Answer: 2 (x + 2) (x - 1)
It is either
A.
or B.
chose between those but go with what you feel is the right answer
hope this helps :3
