9.75 round to the nearest whole number

10

You're rounding to the units digit, so add half the value of the units digit, then drop all digits to the right of the units digit in the result.

... 9.75 +0.5 = 10.25 ⇒ 10 . . . . . when we drop the digits .25

idk

step-by-step explanation:

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3