If 12 men took 12 hours to construct a wall how long will it take 6 men to complete the same wall
2 answers:
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Answer:
Step-by-step explanation:
7) 2ab + 4ac = 2*a*b + 2 *2 *a*c
= 2a(b + 2c)
8) ac - a²c² = c( a - a²c)
bc - abc = c(b - ab)
9) b²+ 4b - 5 = b² + 5b - 1b - 5
= b(b + 5) - 1(b + 5)
= (b +5)(b - 1)
b² + 8b + 15 = b² + 5b + 3b + 15
= b(b + 5) + 3(b + 5)
= (b + 5 )(b + 3)
Solve for slope first:
m =
m =
= -3
then solve for b in y = mx + b
8 = -3(-3) + b
b = -1
y = -3x - 1
m =
m =
then solve for b in y = mx + b
8 = -3(-3) + b
b = -1
y = -3x - 1