Step-by-step explanation:
The scientific notation of any number is given by :

a is any real no and b is any integer
The scientific notation of 345,000,000 should be
but Jorden wrote 34.5×10⁷. He is incorrect. He should have shifted decimal before 4 such that power of 10 becomes 8.
Answer:
31/66
Step-by-step explanation:
15+5+20+11+15=66
13+1+9+5+7=31
31/66
Answer:
3x
Step-by-step explanation:
Answer:
(3x-5)x(3x+5)
Step-by-step explanation:
Calcula el producto
2(x+-9)
2(x-9)
Distribute
2x-18 is the simplified expression