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2 years ago

6

craig has a coin and a number cube.The number cube is labeled 1-6.He flips the coin once and rolls the number cube once.What is

the probability that the coin lands heads up and the number cube lands on an odd number

1 answer:

lilavasa [31]2 years ago

4 0

Answer:

3/12

Step-by-step explanation:

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A person invest $1200 in an account that earns 2% interest compound quarterly. Find when the value of the investment reaches $15

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Answer:

After 11 years the value of the investment reaches $1500.00

.

Step-by-step explanation:

The formula used for finding time (when the value reaches certain amount) is:

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

where A= Future VAlue

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r= rate of interest (in decimal)

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t= time

Putting the values given and finding Time t,

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Dividing both sides by 1200 and solving 0.02/4 = 0.005

$1.25= (1+0.005)^{4t}$

$1.25= (1.005)^{4t}$

Since t is in power we take the logarithm ln on both sides.

The rule of logarithm says that the exponent can be multiplied with the base when taking log

$\ln1.25=ln( 1.005)^{4t}\\\ln1.25=4t * ln( 1.005)\\0.22 = 4t * 0.005\\Solving\,\,\\\frac{0.22}{4*0.005} = t\\=> t= 11\, years$

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