Please show your work

Step-by-step explanation:

This is a parallelogram.  What we know about the diagonals is that they intersect each other at their midpoints.  In other words, QT = ST, and PT = RT.  So that gives us 2 equations:

If QT = ST, then

2x = y + 3

If PT = RT, then

x + 5 = y  Solving by substitution, plug x + 5 in for y in the first equation.

2x = x + 5 + 3 and

2x = x + 8 and

x = 7  Now plug in 7 for x to solve for y:

If x + 5 = y, then

7 + 5 = y and

y = 12

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.