Which set of numbers forms a Pythagorean triple? 1, 2 , 4
6, 7 , 13
3 ,4 , 5
8, 15 , 20

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Iwill give you ! what is the measure of ∠v ?

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap