(a) 5^31-5^29 = 5^29(5^2-1)
= 5^29(24)
= 5^29(6)(4)
=5^26(6)*[(5)(5)(4)]
=5^26(6)*100
(b) 25^9+5^17 = 5^18+5^17
=5^17(5+1)
=5^17(6)
=5^16[(5)(6)]
=5^16*30
(c) 27^10–9^14 = 3^30-3^28
=3^28(3^2 -1)
=3^28(8)
=3^27[(3)(8)]
=3^27*24
Answer:
x=40/9
Step-by-step explanation:
(2/5)*x-((5/8)*x)-15+16=0
(2/5)*x+(-5/8)*x-15+16=0
1-9/40*x=0 // -1
-9/40*x=-1// : -9/40
x= -1/(-9/40)
x=40/9
x=40/9
The answer to your question is A
Answer:straight line angle =180 degree as we know
there are three angles in straight line means sum of all angles must = 180
15+a+38=180
so 53+a=180
so a=180-53
ans a=127 degree
9 58/100 in mixed number form
