Quadratic formulat is used when
a^2+bx+c=0
x=

4m^2+3m-1=0
a=4
b=3
c=-1
input
x=

x=

x=

x=

x=

or

x=-1 or 1/4
<span>To convert a fraction to decimal simply divide the top number by the bottom number. This would give you 1.4. Hope this helped!</span>
I believe B is the answer
Answer:
It will take Superman 32.71 hours or 32 hours and 43 minutes
Step-by-step explanation:
Convert kilometers to meters
40,075 kilometers = 40,075,000 meters
Cross multiply
340.29x = 40,075,000
x = 117,767.19 seconds
Convert seconds to hours
Cross multiply again
3600x = 117767.19
x = 32.71 hours or 32 hours and 43 minutes
If this answer is correct, please make me Brainliest!