Answer:
0.47 and 11.53
Step-by-step explanation:
h = 60t − 5t²
27 = 60t − 5t²
5t² − 60t + 27 = 0
Quadratic formula:
x = [ -b ± √(b² − 4ac) ] / 2a
t = [ -(-60) ± √((-60)² − 4(5)(27)) ] / 2(5)
t = (60 ± √3060) / 10
t = 0.47 or 11.53
Answer:
idk
Step-by-step explanation:
Answer:
domain (-4,infinity) range (negative infinity, infinity)
Step-by-step explanation:
The domain is the x axis. the x axis starts at -4 and keeps going meaning it goes to infinity. the range is the y axis. the range has no determined starting point or end point meaning it goes to negative infinity and positive infinity
Answer:
yuki has spent 22 percent , Rosetta spent 20 percent
step by step explanation:
1) if £100=100percent
then £22=x percent
x=(22×100)/100=22 percent
2) if £140=100 percent
then £28= x percent
x=(28×100)/140
x=2800/140
x=20 percent
