Rearrange the equation by writing
x² + x - 90 = 0
x² + x = 90
x² + x + 1/4 = 90 + 1/4
Recall that (a + b)² = a² + 2ab + b². Then
x² + 2 • x/2 + (1/2)² = 361/4
(x + 1/2)² = 361/4
x + 1/2 = ± √(361/4)
x = -1/2 ± 19/2
x = 9 or x = -10
Answer:
2:56 pm
Step-by-step explanation:
end time: 7:36 pm
Borrow one hour from the hours and add it as 60 minutes to the minutes.
7:36 pm = 6:96 pm
Now subtract 2:40 from 6:96.
Subtract 2 from 7 and subtract 40 from 96.
7:36 pm - 2:40 = 6:96 pm - 2:40 = 2:56 pm
Answer: 2:56 pm
Answer:
which solution are you looking for?
Step-by-step explanation:
Solving for X would be: x<0
Graph inequality would be the left side shaded i think
Answer:
B C D
Step-by-step explanation:
PB = = = 6.08
PC =
PD =
Answer:
1) 6:14 = 3:7 (simplest form)
2) 2:8 = 1:4 (simplest form)
3) 20:30 = 10:15 = 2:5 (simplest form)
If these are incorrect answers, I am so sorry.