It's the second one -7x^2 because a quadratic equation needs to be squared and that's the only one that provides that, you can also find the differences of each equation to see if it's quadratic
I believe when it's a fraction.
Answer:
d = -10
Step-by-step explanation:
(d is the variable)
-6d - 10 = 10 - 4d
+4d +10
-2d = 20
-2d/-2 20/-2
d = -10
:)
sin²x + cos²x = 1
0.0002467198171x + 0.9997532802 = 1
x = 1
Answer:
this is already the answer
Step-by-step explanation:
