Which strategy can be used to multiply 6 x 198 mentally?

if you know the tables then you can do that easily.

use estimation(i think). round 198 to 200 and multiply that by 6 in your head. 2*6=12 then add the two zeros for tens and ones place. 12+0+0= 1200

hope this helped!

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²