Select the correct answer. The velocity of a car for a part of its journey is given by the function (1) = -t^312t^2 - 20t+10, where t is the time in seconds.
When does the car attain its maximum velocity?

a is the right answer

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|

0,0

step-by-step explanation:

60: 45 =12: 9 =4: 3 so the answer is 4: 3