Question

Help please I will fan and Medal !!
http://prntscr.com/9xpafe
http://prntscr.com/9xpauq
http://prntscr.com/9xpbju

Answer 1

1) do u know properties of rhombus

Answer 2

Nuppe

Answer 3

diagonals bisect perpendicularly
find slope of BD = m1
AND
SLOPE OF AC= m2
if m1 * m2 = -1
then
it is a rhombus

Answer 4

So B is # 1's answer?

Answer 5

no
(x1, y1) = B( 5 .-5)
(x2 .y2) = D(7 ,-1)


slope of BD = m1 = (y2-y1)/ (x2 -x1)

can u find m1 substituting above values

Answer 6

M1=(-1-5)/(7-5) ?

Answer 7

no
m1 = [ -1-(-5)]/7-5

Answer 8

ohh i didnt know i had to still put the Negative 5.I needa stawp second guessing myself :(

Answer 9

simplify it

Answer 10

r u doing

Answer 11

-31/7 ?

Answer 12

how can u get it

Answer 13

I just used foiling.Multiplying the First,inner,outter, and last of the equation.

Answer 14

\[m1 = \frac{ [-1-(-5)] }{ 7-5}\]

Answer 15

\[m1 = \frac{ -1+5 }{ 2}\]

Answer 16

\[m1= \frac{ 4 }{ 2 } =2\]
m1 = 2

Answer 17

is it clear