2 years ago

6. You have $20.00 to spend. How many different food/drink combinations could you have?

1 answer:

3 0

You can get (7) fries
You can get (11) hot dogs
You can get (9) hamburgers
You can get (8) cheeseburgers
You can get ( 16) sodas
You can get ( 16) ice creams
You can get ( 20) cookies
You can get (20) waters

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1/20

Step-by-step explanation:

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F(x) = x^2 + 4x. G(x) = 1 + e^2x. As a single logarithm find fg(x) = 21

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Answer:

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Step-by-step explanation:

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1 year ago

Alan and Brian share a sum of money in the ratio 1 : 4.What fraction of the money does Alan receive?

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1/4 of total money

Step-by-step explanation:

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4x squared + 3x-2 divided by 5x squared + 8x +3

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Step-by-step explanation:

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3 years ago

The hours a week people spend answering and sending emails is normally distributed with a standard deviation of Ï = 150 minutes.

storchak [24]

Answer:

sample size n would be 149305 large

Value of n (149305) is too high, this will be the practical problem with attempting to find this confidence interval

Step-by-step explanation:

Given that;

standard deviation α = 150 min

confidence interval = 99%

since; p( -2.576 < z < 2.576) = 0.99

so z-value for 99% CI is 2.576

E = 1 minutes

Therefore

n = [(z × α) / E ]²

so we substitute

n = [(2.576 × 150) / 1 ]²

n = [ 386.4 ]²

n = 149304.96 ≈ 149305

Therefore sample size would be 149305 large

Value of n is too high, that would be the practical problem with attempting to find this confidence interval

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2 years ago