Help me please

A = 16   13unit^2 + 9unit^2 = 5 √10 = 15.8 = 16

Step-by-step explanation:

For Pythagoras we square route

= x^2 = 13^13 +  (one of the closer squares for x elimination)

x= 169 + 81        169 + 100       169 + 49   169+64     169 + 121

x = 250    or         269       or     218        or  233     or  290

x= 5√10 or 15.8    or   √269 269   or    √218 2.8     or  √233 or 2.33 ( or  √290 = ( √48+2) or 2.9

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

step-by-step :