Answer
3.2 x 10^5 in standard form is 320,000
Answer:
option 4
Step-by-step explanation:
Using the rule of radicals
× 
= 
Given
(2 - 5
) 3
← distribute parenthesis by 3
= 6 - 15
= 6 - 15
= 6 - 15(
× 
)
= 6 - 15(2 )
= 6 - 30
In the form of algebra substitution is the method used in simultaneous equations.
E.g y=2x+5 and y=5x-1
Solve for x and y
Since we know two examples of what y is, we can substitute one y in replacement of the other to get.
2x+5=5x-1 then we solve for x to get:
x = 2 sub this back in to get y = 2(2) +5
y = 9
