552.17 rounds to 550
48.35 rounds to 50
550-50=500
Answer:

Hence, option C is correct.
Step-by-step explanation:
Given the expression

simplifying the expression

Apply radical rule: 

Apply radical rule: 



Apply radical rule: 

Therefore,

Hence, option C is correct.
Answer:
Step-by-step explanation:
Next time, please share the possible answer choices.
A quadratic function with one real zero actually has TWO real, identical zeros. The vertex of the graph lies on the x-axis (touching it in only one place).
Answer:
Part a) Daniel's age is 2 years
Part b) Kevin's age is 8 years
Step-by-step explanation:
<u><em>The question is </em></u>
Part a) How old is Daniel?
Part b) How old is Kevin?
Let
x ----> Kevin's age
y ----> Daniel's age
we know that
-----> equation A
----> equation B
Equate equation A and equation B

solve for y



therefore
Daniel's age is 2 years
<em>Find the value of x</em>
substitute the value of y in any of the two equations


therefore
Kevin's age is 8 years
If it’s a factor then it’s 2 but if your doing a expression then it is just 2x+2