Q12 On my clock the hour hand is 5.5 cm, the minute hand 8 cm and the second hand 7 cm, measured from the centre. Calculate the distance between the tips of the:
a) hour and minute hands at 10 o'clock
b) minute and second hands 15 seconds before 20 past the hour
c) hour and minute hands at 1020.
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So the minute hand is at
19.75 minutes past the hour,
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step-by-step explanation:

use that smart brain

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: