Hello,
Answer A: no solution
line 1: (-6,3), (3,6)==>y-3=(x+6)*3/9==>x-3y=-15 (1)
line 2: (-3,1), (3,3)==>y-1=(x+3)2/6==> x-3y=-6 (2)
(1)-(2)==>0x=-9 ==> no solution
line 1 // line 2
Answer:
Step-by-step explanation:
Let t = flying time in seconds for each plane
Descending rate = 40 ft/s
Ascending rate = 60 ft/s
Descending height, hd= 19200 - 40t
Ascending height, ha = 60t
Equating hd = ha, therefore:
60t = 19200-40t
60t + 40t = 19200
100t = 19200
t = 19200/100
t = 192 seconds
h = 19200 - 192(40)
h = 19200 - 7680
= 11,520 ft.
Answer:
2520
Step-by-step explanation:
LCM(4, 7, 8, 9, 10, 12) = 2520
Answer:
3
Step-by-step explanation:
she put 4 stickers on each car
