PLEASE HELP Suppose that z varies jointly with x and y. When x = 2, y =2 and z = 7
3) Write the equation that models the relationship
4) Find 7 when x - 4 and y 8

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

step-by-step explanation:

options