<u><em>Commutative:</em></u>
93 + (68 + 7) ⇒ (68 + 7) + 93
<u><em>Associative:</em></u>
93 + (68 + 7) ⇒ (93 + 68) + 7
<u><em>Identity:</em></u>
93 + (68 + 7) + 0 ⇒ 93 + (68 + 7)
Answer:
For a trapezoid, A = (a+b/2)h
Step-by-step explanation:
I attached a picture which is better.
Answer:
3.14
Step-by-step explanation:
Area of a corcle is sexpressed as';
A = πr²
π = A/r²
π = 78.54/5²
π = 78.54/25
π = 3.1416
When the area is divided by radius the required constant is 3.14
'nine less than three times a number is negative twenty-one.'
Well lets check it.
44 divided by 4 is 11.
11 - 5 is 6.
So yes you are correct.