Answer:
1st one is not a right triangle.
2nd one is not a right triangle.
3rd one is not a right triangle.
4th one is a right triangle.
Step-by-step explanation:
1, 2, and 3 could also be "not enough information".
D. 11x = 5y - 6
Because for there to be infinitely many solutions it has to be the same line & choice D is the same as the original equation except both sides of the equation were multiplied by 3.
Factor y2 + 5y +6.
Multiply all of the multiple choices
(y+1)(y+6)
(y*y)(y*6)(+1*y)(+1)(+6)
y^2+6y+y+6
=y^2+7y+6
(y+2)(y+3)
(y*y)(y*3)(2*y)(2*3)
y^2+3y+2y+6
=y^2+5y+6
Answer: (y + 2)(y + 3)
7.5 because 90 divided by 12 equals 7.5
