Try this option:
According to property such triangle
1. area=0.5*a*b, where a and b - the sides of angle 90°.
Using this equation: 180=0.5*40*b, ⇒ b=9.
2. c²=a²+b², ⇒c=√(9²+40²)=41 - the third side of the triangle;
3. Perimeter=a+b+c=9+40+41=90 cm.
answer: 90 cm.
1.35 you first have to add like terms . 2.00 + 8.00 = 10.00 . Then 7.50x + 6.00x = 13.50x. Divide each side by 13.50x . 13.50x/13.50x = x and 10.00/13.50x=1.35 so x = 1.35
Answer:
-|x|=-3
|x|=-3
|-x|=-3
Step-by-step explanation:
