The altitude of an equilateral triangle with side length 
is 
.
So, the length of the altitude is
(3,2). 3^2 + 2^2 = 13 2(3)-2= 4 Works for both, hence this is the intersecting point of the two lines.
3(y - 1)=2(y + 1)
expand /open the bracket
3y - 3=2y + 2
collect like terms
3y - 2y=2+3
y=5
Answer:
12/4=3
Step-by-step explanation:
12/4
<span>Two cubes, A and B
Cube A------>LA </span><span>surface area of A SA=LA*LA
Cube B---------> LB=2LA </span>surface area of B SB=LB*LB=48
SB=LB^2=48-------------->(2LA)^2=48 <span>cm^2
</span>4LA^2=48-->LA=12<span>^(1/2)
</span>surface area of A SA=LA*LA=12 <span>cm^2
the answer is the </span>surface area of A is 12 cm^2
