Ineed !
secant db intersects secant dz at point d. find the length of da.

Step-by-step explanation:

We have been given an image of a circle and we are told that Secant DB intersects secant DZ at point D.    

We will use intersecting secants theorem to solve our given problem.  

Intersecting secants theorem states that if two secants say MN  and KL intersect at a point 'X' outside the circle, then product of XN and MX equals the product of XL and KX.

Using intersecting secants theorem we can set an equation as:

Upon substituting our given values in above equation we will get,

Upon dividing both sides of our equation by x we will get,

Upon using distributive property we will get,

Upon dividing both sides of our equation by 8 we will get,

Since the length of DA is 3x, so upon multiplying 3 by 1 we will get,

Therefore, the length of DA is 3 units.

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation: