PLEASE HELP Roberto just took out a loan for $3200 at a 10.8% APR, compounded monthly, to buy a new cello, and he has agreed to make monthly payments of $88 to pay off the loan. He's wondering how much faster he would be able to pay off the loan if he changed his monthly payment to $121. Help Roberto come up with the answer. Part I: What is the periodic interest rate of Roberto's loan?

Part II: How long will it take Roberto to pay off the loan by making monthly payments of $88?
Part III: How long would it take Roberto to pay off the loan by making monthly payments of $121?
Part IV: How much faster would Roberto be able to pay off the loan by changing his monthly payment from $88 to $121?

well

44-3-3-3=35

35+4+4+4+4=51

so the ansewr would be 51 degreesat 7: 00

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough