4.) Quadrilateral ABCD has coordinates A ( 0,0), B( 6a, 3b), C ( 3a, 4b), D (a, 3b).
(a) Using coordinate geometry, show that.
(1) AB II CD
(2) AD is not parallel to BC

Plz which expression is equivalent to the expression below?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.