Leon verified that the side lengths 21, 28, 35 form a pythagorean triple using this procedure. step 1: find the greatest common factor of the given lengths: 7 step 2: divide the given lengths by the greatest common factor: 3, 4, 5 step 3: verify that the lengths found in step 2 form a pythagorean triple: 3^2 + 4^2= 9+16=25=5^2 leon states that 21, 28, 35 is a pythagorean triple because the lengths found in step 2 form a pythagorean triple. which explains whether or not leon is correct? yes, multiplying every length of a pythagorean triple by the same whole number results in a pythagorean triple. yes, any set of lengths with a common factor is a pythagorean triple. no, the lengths of pythagorean triples cannot have any common factors. no, the given side lengths can form a pythagorean triple even if the lengths found in step 2 do not.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !