Answer:
see explanation
Step-by-step explanation:
← evaluate 
using calculator
= 
= 
= 1.762.....
≈ 1.8 ( to 1 dec. place )
If you reflect across the x-axis, the y value change from positive to negative.
If you reflect across the y-axis, the x value changes from positive to negative
Answer:
65
Step-by-step explanation:
just to sum all the given measurements:
19+31+15=65.
<span>2x+2y=32 and xy=60
--> x+y=16 and xy=60
--> y = 16-x
--> x(16-x)=60
so we have a quadratic, which needs to be solved. Hopefully by factorization. If not..the quadratic formula.
1x60
2x30
3x20
4x15
5x12
6x10
looking at these, 6 and 10 can add to make 16, so
(x-10)(x-6) = 0
so x-10=0 OR x-6=0
so x=10 OR x=6
so, basically we have x=10, so y=6
or we have the opposite, x=6 and y=10
hope this helps</span><span />
