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6^2  = 36

36 * 6  =  216

6^2 * 6  = 216

6^3  = 216

V_cylinder = pi * r^2 * h     but  h = r......so the volume    =  pi* r^2 *r   =  pi * r^3

V_cube  =   side length^3   = L^3  

So

pi * r^3  =  L^3       take the cube root of both sides

∛[pi * r^3]   = L  = r∛pi

0/0 is an indeterminate form.

It has no single value; it can have any real number for an answer. 

Convert 2.75% from nominal rate to effective annual rate=2.788161511.

PV=FV[1 + .02788161511]^-5

PV=194.60 x 0.87153434....

PV=$169.60

I meant my score is 438.

MAD is the Mean Absolute Deviation.

For the data set:  8.5     6.4     8.1     9.5     10.0 :

First, find the mean:    (8.5 + 6.4 + 8.1 + 9.5 + 10.0) / 5     =     8.5

Second, find the distance (the absolute value) of each data element from the mean:

     | 8.5 - 8.5 |  =  0     | 6.4 - 8.5 |  =  2.1     | 8.1 - 8.5 |  =  0.4     | 9.5 - 8.5 |  =  1.0     | 10.0 - 8.5 |  =  1.5

Third, find the mean of these distances:     (0 + 2.1 + 0.4 + 1.0 + 1.5) / 5     =     5.0 / 5  =  1.0

it's the hypotnuse over the adjacent.

No. It is as simplified as it gets. There is no gcf of 7 & 80.

no.

7 is prime and 80 is not divisible by 7.

The appropriate formula is:  A  =  Pe^rt

where:  A  =  final amount     P  =  beginning amount     r  =  rate (as a decimal)     t  =  time     e  =  2.71828...

For this problem:  interest  =  2.75%     --->     r  =  0.0275'

                             time  =  5 years     --->     t  =  5

                             payment  =  $194.60     --->     A  =  194.60

                             original principal is unknown

A  =  Pe^rt     --->     194.60  =  Pe^{0.0275 x 5}     --->     194.60  =  Pe^0.1375     --->     194.60 / e^0.1375​   =  P

                   --->    P  =  169.60

Even though Nauseated failed.