<span>The
associative rule is a rule about when it's safe to move parentheses
around. You can remember that because the parentheses determine which
expressions you have to do first--which numbers can associate with each
other. It looks like this:
For addition: (a + b) + c = a + (b + c)
For multiplication: (ab)c = a(bc)
The commutative property is about which operations you can do backward
and forward. You can remember this by thinking of people commuting to
work: they go to work every morning, then they repeat the same operation
backward when they commute home. It looks like this:
For addition: a + b = b + a
For multiplication: ab = ba
Finally, the distributive property tells you what happens when you
distribute one operation against another kind in parentheses. It looks
like this:
a * (b + c) = ab + ac
In other words, the a is "distributed" over the b and c.
Of course, you can make these work together:
a * (b + (c + d))
= a * ((b + c) + d) (by the associative property)
= a * (d + (b + c)) (by the commutative property)
= ad + a (b + c) (by the distributive property)
= ad + ab + ac (by the distributive property again).
Hope this helps. </span>
Answer:
do the opposite of the equation so adding is subtracting and multiplying is dividing
-30-7=-37
-37+13=-24
-24 is the answer
-24+7=-17-13=-30
Hope this helps
Step-by-step explanation:
Answer:
It's a square; vertice f is 6 units to the right of vertice e and g is 6 units above f, and h is 6 units to the left of g. This means there are four sides of equal length, with equal angles.
do you need more than that?
Answer:
yes that is correct
Step-by-step explanation:
make sure you use mulipy subrract and - only
Answer:
Look below! Mark brainliest as well please!
Step-by-step explanation:
The formula for a slope is (y2-y1)/(x2-x1). So here we have (-3-(-3))/(8-4). So we then get (-3+3)/4 and that goes to 0/4 which means the slope is 0. I hope this helps!
