Answer:
x=3 , x=-3
Step-by-step explanation:

Add 9 on both sides

To remove base 'e' we take ln on both sides


Both sides have ln , so we make the terms equal

Take square root on both sides

x=3 , x=-3
Answer:Teo's age = 7 years ,Richard's age = 19 years
Step-by-step explanation:
Step 1
Let Teo's age be represented as x
Such that Richard 's age = 5 + 2x
and their combined ages equaling 26 can be expressed as
x + 5+ 2x = 26
Step 2 --- SOLVING
x + 5+ 2x = 26
3x+ 5= 26
3x= 26-5
3x= 21
x = 21/3
x = 7
Teo's age = 7 years
Richard's age = 5+2x= 5 + 14= 19 years
Answer:
1 and 3, if im wrong i am sorry I have not don this in a long time
Step-by-step explanation:
True such as
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
or
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010