Answer:
x = ± √(-15n-7) / √2n (± (-15n-7)^(1/2) / (2n)^(1/2))
Step-by-step explanation:
Factoring?
2nx² + 15n+7 = 0
2nx² + 0*x + (15n+7) = 0 ... ax²+bx+c=0
Roots: x = (-2b ± √b²-4ac)) / 2a = (0 ± √0-4*2n*(15n+7)) / 4n
x = ± (√8n (-15n-7)) / 4n = ± (2√2n(-15n-7)) / 4n = ± (√2n(-15n-7)) / 2n
or x = ± √(-15n-7) / √2n
Answer:
x=23
Step-by-step explanation:
Answer:
the correct answer is 8,000ft
Step-by-step explanation:
sin30°=4000ft/h
hsin30°=4000ft
h=4000ft/sin30°
h= 8,000ft
Let, the Goal = x
It would be: x * 125% = 6750
x * 1.25 = 6750 [ 125% = 1.25]
x = 6750 / 1.25
x = 5400
In short, Your Answer would be $5400
Hope this helps!
