Hello from MrBillDoesMath!
Answer:
25 + 300/x + 900/x^2
Discussion:
( (5x + 30)/x ) ^ 2 =
(5x + 30)^2 / x^2 =
(25x^2 + 2*5*30x + 30^2) / x^2 =
(25x^2 + 300x + 900) / x^2 =
25 + 300x/x^2 + 900/x^2 =
25 + 300/x + 900/x^2
Thank you,
MrB
Answer:
√10
Step-by-step explanation:
Pythagorean theorem. a^2+b^2=c^2.
In this case 9^2+b^2=√91^2. That equals 81+b^2=91. You isolate b^2, b^2=10. So b=√10.
Answer:
Disagree
Step-by-step explanation:
X+y equals 9 if 4 replaces x and 5 replaces y not 10.
Answer:
0
Step-by-step explanation: