11. An electrical firm manufactures light bulbs that have a length life with normal distribution, and mean equal to 800 hours, and a variance of 6. Find the probability that a random sample of 25 light bulbs will have a sample variance S² between 3.462 and 10.745.

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Q: 3. Ф(36) Answer: Show your work or explain your reasoning here:

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Q: Help:)

A: Ny using circle property, we find the value of 'x'.

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Q: 8) Find the value of line ML Find ML 110 +4x x+ 103 70 N K M x+243 O -10 O 113 O 93 93

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Q: 18. Solve the following: 3 10 x + 5 x2 + 7x + 10 x + 2

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Q: 6. Ф(23) Answer: Show your work or explain your reasoning here:

A: We have to calculate ϕ(23)

Q: Mulitipication or cross products property    96  = b 45    20

A: We have, By cross multiplication,

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Q: 1. V6x = -3 3. бх

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Q: 7. Solve for x. (2х + 5) B a. x= 90 b. х%3D 87.5 с. х 3 42.5 d. х- 27.5

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Q: Solve for x. X X -32 = -20

A: |xx−32|=−20

Q: 1. Ф(8) Answer: Show your work or explain your reasoning here:

A: