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Molodets [167]
3 years ago
11

Solve by factoring. 1.) 0=6x^2-13x-5 2.) 0=4x^2-7x+3

Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0

1. x= -1/3 or x= 5/2

2. x=3/4 or x=1

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Step-by-step explanation:

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a person invest in 9000 in a bank. the bank pays 5% interest compounded semi annually. to the nearest tenth of a year, how long
QveST [7]

Answer:

10.1 years.

Step-by-step explanation:

It is given that,

Principal = 9000

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No. of times interest compounded = 2 times in an year

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The formula for amount:

A=P(1+\frac{r}{n})^{nt}

where, P is principal, r is rate of interest, n is no. of times interest compounded in an year and t is time in years.

Substitute the given values in the above formula.

14800=9000(1+\frac{0.05}{2})^{2t}

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1.644=(1.025)^{2t}

Taking log both sides.

\log(1.644)=\log(1.025)^{2t}

\log(1.644)=2t\log(1.025)    [\because \log a^b=b\log a]

\frac{\log(1.644)}{2\log(1.025)}=t

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Therefore, the required time is 10.1 years.

3 0
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What is 10,000,000,000 in standard form?
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Step-by-step explanation:

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