Answer:
8
Step-by-step explanation:
Given the expression
4t^6-r^10 we are to factorize in the form;
(2t^x+r^y)(2t^x-r^y)
First we need to factorize (2t^x+r^y)(2t^x-r^y)

Compare 

Get y;

Hence the sum of x and y is 8
The answer is 39 cm^2
i did 6 • 4, then 5 • 3, and then added
hope this helps,, have a nice day :))
Answer:
7/10
Step-by-step explanation:
Lets set up this word problem as an equation to make it easier to solve.
1/2+2/5 - 1/2 x 2/5
<em>Now lets solve using PEMDAS:</em>
<em />
1/2+2/5 - 1/2 x 2/5 1/2 x 2/5 = 1/5
1/2 + 2/5 - 1/5 1/2 + 2/5 = 9/10
9/10 - 1/5 = 7/10