(a) suppose you borrowed $400,000 for a home mortgage on january 1, 2010 with an annual interest rate of 3.5% per year compounded monthly. if you didn't make any payments and were only charged the interest (and no late fees), how much would you owe on the mortgage on january 1, 2030?

$804,680.814 ( approx )

Step-by-step explanation:

The amount formula in compound interest is,

Where, P is the principal amount,

r is the annual rate of interest,

n is the compounding periods in a year,

t is the time in years,

Given, P =  $ 400,000,

r = 3.5 %=0.035,

n = 12,    ( 1 year = 12 months )

t = 20 years,

Thus, the amount would be,

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.