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3 years ago

5

What is the square root of -1? A -I B I C -1 D 1

1 answer:

Kisachek [45]3 years ago

6 0

Answer:

The correct answer to the square root of - 1 is B

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At a pizza shop, 80% of the customers order a pizza, 15% of the customers

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Answer:

0.85

Step-by-step explanation:

pizza and salad are 90%

pizza, salad and and both are 105%

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If Free Yer Assets Bank (FYAB) will give you 0.25% compounded quarterly and I.M.A.Q.T.π bank will give you 0.23% interest compou

ivann1987 [24]

Answer:

FYAB gives a better deal.

Step-by-step explanation:

Compound interest:

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

Continuously compounded interest:

$A = Pe^{rt}$

For the quarterly compounded interest, r = 0.25%, and n = 4.

$2P = P(1 + \dfrac{0.0025}{4})^{4t}$

$1.000625^{4t} = 2$

$\log (1.000625^{4t}) = \log 2$

$4t(\log 1.000625) = \log 2$

$t = \dfrac{\log 2}{4\log 1.000625}$

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For the continuously compounded interest, r =0.23%

$A = Pe^{rt}$

$2P = Pe^{0.0023t}$

$2 = e^{0.0023t}$

$\ln 2 = \ln e^{0.0023t}$

$\ln 2 = 0.0023t$

$t = \dfrac {\ln 2}{0.0023}$

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The quarterly compounded doubles in 277 years.

The continuously compounded doubles in 301 years.

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