Which are not dimensionsions of a Right Triangle A. 3cm , 4cm, 5cm
B. 5cm, 12cm,
C. 9cm , 12 cm , 15cm ,
D. 9cm , 12cm ,15cm
(Pythagorean Theorem)

C

Step-by-step explanation:

4 squared +8 squared doesnt equal 12 squared

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d