Breaking Strength of Steel Cable The average breaking strength of a certain brand of steel cable is , with a standard deviation of . A sample of cables is selected and tested. Find the sample mean that will cut off the upper of all samples of size taken from the population. Assume the variable is normally distributed. Round intermediate -value calculations to decimal places and round the final answer to at least decimal places.

5.5

step-by-step explanation:

this is a very good question

step-by-step explanation:

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x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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