The answer is A should be right
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
Answer: domain = 54 range = 14
Step-by-step explanation:
8 is the largest number that goes into both 32 and 40.
40/8 = 5
32/8 = 4
so there can be 8 teams, each consisting of 5 girls and 4 boys
