HELP ME PLZ ANSER ALL 50 POINTS​

289

Step-by-step explanation:

i think

anyways hope this helps

Step-by-step explanation:

Commutative means a + b = b + a

So, 4x + 3 = 3 + x

Associative means a + (b + c) = (a + b) + c

So, 6 + (9 + 7) = (6 + 9) + 7

Distributive means expand the bracket a * (b + c) = a*b + a*c

So, (4x + 3y + 2z) * 7 = 4x*7 + 3y*7 + 2z*7

Commutative is a + b = b + a

So, 15a + 15b = 15b + 15a

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.