Answer:
(a+c)+7
Step-by-step explanation:
this is called the Associative Property
(x+y)+z=x+(y+z)
L = 15
w = 12
h = 8
Surface Area = 2(lw + wh + lh)
S.A. = 2(15*12 + 12*8 + 15*8)
S.A. = 2(180 + 96 + 120)
S.A. = 2(396)
S.A. = 792 cm^2
Answer:
x = 2
Step-by-step explanation:
Since this is a 45-45-90 triangle, the 2 legs will be the same, meaning that y will also be
.
We can then solve for x using the Pythagorean theorem:

Or, we could use a quicker approach: if the triangle is a 45-45-90 triangle, the hypotenuse will be
times the length of 1 leg. It essentially does the same thing; it's just faster so you could save time on tests.