I am pretty sure it depends on what your numbers are
Area= 709.86
Circumference= 94.25
It is a mixed number because 12/2 can be written as 6 instead of 12/2
If triangles PQR and STU are similar then PQ corresponds to ST and PR corresponds to SU. Therefore, PQ/ST=PR/SU
Considering that, PQ= 7-x, ST= 13-x, PR= x²+5 and SU= x² +20
therefore, (7-x)/(13-x)= (x²+5)/(x²+20)
cross multiplying,
7x² +140-x³+20x =13x²+65-x³-5x
combining the like terms,
6x² +15x -75=0
solving for x,
x = 5/2 or -5
First, what's 3 to the power of 8?
Then what's 3 to the power of 10
Now subtract them by each other for your answer
