Answer:
Yes you need a common denominator because, We need the pieces of each fraction to be the same size to combine them together. ... These two fractions have the same denominator, so the equal parts that the whole has been split into are the same size.
Step-by-step explanation:
Answer:
1. 2/5s + 8
2. -24
Step-by-step explanation:
1.
2/5(s + 20)
(2/5)(s) + (2/5)(20)
2/5s + 8
2.
-6(12 - 8)
(-6)(12) - (-6)(-8)
-72 + 48
-24
Answer:
49x^2+28xy+4y^2
= (7x)^2 + 28xy + (2y)^2
= (7x + 2y)^2
= 7x+4y
=D
Step-by-step explanation:
Answer:
A) 3 x 1
Step-by-step explanation:
Row x column
Row = 3
Column = 1
Hence:
3 x 1
No they are not the same
This is because 7^(-2) = 1/(7^2) = 1/49
The general rule is x^(-y) = 1/(x^y)