Two points in a sphere are 777m apart and the distances of a lighthouse from these points are

650m and 525m. the lighthouse radiates a narrow beam which revolves at a uniform rate,

making one complete revolution in 15 seconds. find the time taken for the beam to traverse the

strip of shore between the points

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

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