Step-by-step explanation:
x² + 20 = 2x
x² − 2x + 20 = 0
x = [ -b ± √(b² − 4ac) ] / 2a
x = [ -(-2) ± √((-2)² − 4(1)(20)) ] / 2(1)
x = [ 2 ± √(4 − 80) ] / 2
x = [ 2 ± √(-76) ] / 2
x = [ 2 ± 2i√19 ] / 2
x = 1 ± i√19
Divide 500 by 400 and you'll get 1.25m/sec.
Answer:
twenty four and sixty nine hundredths
Step-by-step explanation:
expanded notation means you just write it out.
Answer:
x = 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
