For f(x)=2x+1 and g(x)=xsquared-7 find (f-g)(x)

Mathematics

1 answer:

devlian [24]3 years ago

5 0

Answer:

(f-g)(x) = - x² + 2 x + 8

Step-by-step explanation:

Explanation:-

Given f(x) = 2 x +1

g(x) = x² - 7

(f-g)(x) = f(x) - g(x)

= (2 x + 1) - ( x² -7)

= - x² + 2 x + 1 + 7

= - x² + 2 x + 8

(f-g)(x) = - x² + 2 x + 8

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gavmur [86]

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a) Is it plausible that X is normally distributed?

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b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

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b) Probability that the sample mean courtship time is between 100 min and 125 min

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