Answer:
A perfect score on a test
Step-by-step explanation:
Since the score gets subtracted for each wrong answer, if x=0 then then nothing would get taken away from the initial 80
Answer:
Im sorry but it is kind of confusing
Step-by-step explanation:
That is a difference of two square numbers, we can factorize them easily:
<span>0 =-b^2 + 25
b^2 - 25 = 0
(b + 5)(b - 5) = 0</span>
Hey there :)
3√10 + 7√15 - 6√10 - 4√15
Combine like-terms together
3√10 - 6√10 + 7√15 - 4√15
- 3√10 + 3√15
↑
Will be your final answer
