Sunshine stereo cassette decks have a deck life that is normally distributed with a mean of 2.3 years and a standard deviation of 0.4 years. . For how many years should the cassette deck be insured to be 95% confident that it will last beyond the insurance date. _years. Round to 1
decimal place.

Rest of the question on the image.

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step-by-step explanation:

-1   1/6.   you dont subtract the denominators

step-by-step explanation:

the answer is -1 for this question

step-by-step explanation:

4y - 6 + y^2 - 9 = y^2 + 4y - 15

y^2 term

terms

- terms

total of 3 terms when simplified

step-by-step explanation: