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lys-0071 [83]
3 years ago
5

What are the solutions of the equation x^4-5x-^2-14=0

Mathematics
1 answer:
ohaa [14]3 years ago
8 0
So you want to start to factor  so you get (x²+2)(x²-7) = 0.  Now set each () to 0, so you get  (x²+2) = 0 and  (x²-7)=0.  The first ends with +√2i and -√2i, the second ends with +√7 and -√7
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If you invest $100 into an account that earns 9% interest each year, how many years will it take for you to have $200?
Helga [31]
It does not say simple or compound interest.
Simple interest is rarely used these days, so assume compound.
Use the standard formula:
future value = present value*(1+rate/n)^(nt)
n=number of times interest is compounded per year (=1)
t=number of years
Plugging values,
200=100(1.09)^t
1.09^t = 2
take log
t(log(1.09))=log 2
t=log(2)/log(1.09)=0.6931/0.08618=8.04 years.
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3 years ago
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andrew-mc [135]

Answer:

V = 1/3 ( 35)*12

Step-by-step explanation:

The volume is given by

V = 1/3 Bh

Where B is the area of the base

V = 1/3 ( 35)*12

8 0
3 years ago
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5+9(m+5)+8 I dont understand the question may you guys explain
viva [34]

Answer:

Simplify

Step-by-step explanation:

You have to simplify the question:

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Answer:

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