Answer:
t=40.5
Step-by-step explanation:
T likely stands for time. but I suspect you haven't given us the full question because the piece you gave us doesn't determine what T stands for. either way, t is your variable. could be substituted for x or any other variable.
t2=81
isolate t
/2
t= 81/2
t= 40.5
t = 9
t² = 81
√t² = √81
x²-5x+(-5/2)²=27+(-5/2)²
(x-5/2)²= 133/4
x-5/2= ±√(133/4)
x= (5/2)± √(133/4)
x= ...
75%
infinite
Let the linear equation in two variables be ax+by+c=0
Put values
Hence for any values it has infinite number of solutions .
including x=1 and y=3
Answer: Venus