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OverLord2011 [107]
3 years ago
6

3x^2- 10x - 8 please help with this

Mathematics
2 answers:
fgiga [73]3 years ago
8 0
So why I now yes when she where it go to get the stuff
Nataly [62]3 years ago
4 0
B^2 - 4xaxc
a=3 b= -10 c= -8

(-10)^2 -4 x3 x (-8)

100 + 96

196

Sqrt(196) = 14

x1 = (-b-sqrt(196))/2a
x1= (10-14)/6
x1= -2/3

x2 = (-b+sqrt(196))/2a
x2 = (10+14)/2a
x2= 4
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Answer:

B.

Step-by-step explanation:

Not another one! ;)

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3 years ago
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Margarita [4]
 <span>it depends how the interest is calculated, but there's not much of a difference 

assuming its continuously compouned, you use this formula: A(t)=Pe^(rt), where A is the final amount, P is the initial investment, r is the interest, and t is the time in years 

you want to find t such that A(t)=18,600 so 18,600=1000e^(.0675t) 

you need to use logarithm to figure it out, take the natural log of both sides 

the following properties will come into use: 

ln(a*b)=ln(a)+ln(b) 
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taking the natural log 

ln(18,600)=ln(1000e^(.0675t)) 

ln(18,600)=ln(1000)+ln(e^.0675t) 

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now solve for t: t= (ln(18600)-ln(1000))/.0675 

t=43.31</span>
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2 years ago
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Maslowich

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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