Answer:i think its 70 if im wrong im very sorry
Step-by-step explanation:
I suspect you meant <span>T(n) = n^2 - 5; the " ^ " sign denotes exponentiation.
T(1) = 1^2 - 5 = 1 - 5 = - 4
T(2) = 2^2 - 5 = 4 - 5 = -1</span>
Answer:
Step-by-step explanation:
10 %
If you decrease a price by 20% you multiply the original cost by 0.8
So, if y times 0.8 = $12, then you do y=12/0.8 which is 15.
The original cost is $15.
Answer:
Properties of operations help a lot in solving problems related to integers and rational numbers.
<u>Step-by-step explanation:</u>
There are four properties of operations in math. These properties are applicable in case of addition and multipication but not in case of division and subtraction.
These properties are used to solve problems involving rational numbers as well as integers.These properties are associative,commutative, distributive and identity.
commutative property is A+B=B+A
⇒5+4=4+5
and A*B=B*A
⇒5*4=4*5
associative property ( 32+14)+7= 32+(14+7)
( 8*9)*7= 8*(9*7)
Identity property is 35+0= 35
1*58=58
distributive property is 15*21
⇒ 15*(20+1)
⇒15*20+15*1
15*21
⇒ 15*(22-1)
⇒15*22-15*1
