Answer:
c seems right
Step-by-step explanation:
Answer:
- 8, 15, 17 — yes
- 15, 20, 25 — yes
- 20, 48, 52 — yes
- 2, 9, 11 — no
- 39, 80, 89 — yes
Step-by-step explanation:
The squares of the three numbers in each of the given triples are listed. When the sum of the first two numbers is equal to the third, the set of numbers in the triple is a Pythagorean triple.
{64, 225, 289}, yes
{225, 400, 625}, yes — a 3,4,5 triple multiplied by 5
{400, 2304, 2704}, yes — a 5,12,13 triple multiplied by 4
{4, 81, 121}, no*
{1521, 6400, 7921}, yes.
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* the smallest set of integers that is a Pythagorean triple is {3, 4, 5}. The number 2 in this group tells you this cannot be a PT.
Answer:
n=15
Step-by-step explanation:
subtract 8 from both sides to get 3n=45
divide both sides by 3 to solve for n to get n=15
Answer:
D. (-5,2)
Step-by-step explanation:
1st reflection = reflection across the line k with the rule:
(x,y)→(-y,-x)
So,
(2,5)→(-5,-2)
2nd reflection = reflection across the x-axis with the rule
(x,y)→(x,-y)
So,
(-5,-2)→(-5,2)
After two consecutive reflections
(2,5)→(5,2)
