Answer:
C
Step-by-step explanation:
how to find the correct one?
just see on the x² constant number. it's -5 so
from ABCD the only option give -5 is C
A. (-2)(-2) + (-1)(-1) = 5
B. (-2)(-2) + (1)(1) = 5
C. (2)(-2) + (-1)(1) = -5
D. (-2)(2) + (-1)(-1) = -3
thats all right but part 3 of 3 is 7.5
Step-by-step explanation:
We split the duration into 2 smaller intervals.
- 8:45p.m. to midnight = 3 hours and 15 min
- Midnight to 2:15a.m. = 2 hours and 15 min
Hence the total duration is 5 hours and 30 min.
Answer: There are no real solutions
Answer:
x = 52
Step-by-step explanation:
28 + x - 4 + 2x = 180
Simplify the left side
3x + 24 = 180
Subtract 24 from each side
3x = 156
Divide each side by 3
x = 52