Step-by-step explanation:
The two triangles are similar so
BC=BC
AB=AB
AC=AC
1.)5z=20 (÷b.s by 5)
z=4
2.)8=2x+2
8-2=2x
6=2x (÷b.s by 2)
x=3
3.)3y-3=15
3y=15+3
3y=18. (÷ b.s by 3)
y=6
I’m assuming you mean there are 5 rows which are equal, and use all the 115 photos. If this is the case then 115/5 is 23 photos per row.
In #12, substitute into the given function the x values {-3, 0, 6} to obtain the range: the function takes on the following values: {0, -1, -3}. Thus, the range for #13 is {0, -1, -3}.
Do the others in precisely the same way.
A = r/2L
A(2L) = r/2L(2L) (multiply 2L to both sides to isolate r)
A(2L) = r is your answer
hope this helps
