the true length of boards cut at a mill with a listed length of 10 feet is uniformly distributed between 118.9 and 122.9 inches. what is the standard deviation of this distribution? (Keep three decimal places)

answer: i believe its b. if you sound out the sentences that sounds wrong.

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116