(-6i)(-4i) would be 24i
A negative times negative is positive. 6 times 4 is 24.
Answer:
Isolation
Step-by-step explanation:
A isolation
2/3 of 1/2=2/6=1/3
1/3 of the original is left
Answer:
x = -1.77, 6.77.
Step-by-step explanation:
x^2 - 5x = 12
(x - 2.5)^2 - 6.25 = 12
(x - 2.5)^2 = 18.25
x - 2.5 = +/- √18.25
x = 2.5 +/- √18.25
x = -1.77, 6.77.
15 machines * 15 minutes = 500
75 machines * x = 6000
by dividing both equations we have
(75*x)/(15*15) = 6000/500
solving for x
x = 36
it would take 36 min