Answer:
Step-by-step explanation:
1) rational number
2) 5/4 = 1.25 rational number
3) √11 irrational number
4) - 12 rational number
5) (6*8) *5 = 6*(8*5) Associative property of multiplication
6) 7*(9-5) = 7*9 - 7*5 Distributive property upon subtraction
7) 84 + 16 = 16 +84 Commutative property of addition
8) (12 +5) *6 = 12*6 + 5*6 Distributive property upon addition
Given number additive inverse multiplicative inverse
9) - 7 +7 [tex]\frac{-1}{7}[/tex]
10) [tex]\frac{4}{9}[/tex] [tex]-\frac{4}{9}[/tex] [tex]\frac{9}{4}[/tex]
11) 3.8 -3.8 [tex]\frac{1}{3.8}[/tex]
12) √5 -√5 [tex]\frac{1}{\sqrt{5} }[/tex]
Hint:
To find additive inverse, just reverse it's sign
a additive inverse is -a
-a additive inverse is a
Multiplicative inverse of a number 'x' is 1/x
Multiplicative inverse of a fraction a/b is b/a
