Y varies jointly as x and z, and inversely as w: y=3 when x=-2, z=6, and w=12.

•Write the equation that represents this relationship.
•What is the constant?

Write the equation that represents this relationship

The constant is -3

Solution:

Given that,

y varies jointly as x and z, and inversely as w

Therefore,

Where, k is constant of propotionality

y = 3 when x = -2, z = 6, and w = 12

Substitute in eqn 1

Write the equation that represents this relationship

Substitute k = -3 in eqn 1

Thus the equation is found

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.

(-5,-28)

i graphed to on desmos.