Answer: x = ±√145
Step-by-step explanation:
√(17 + x) × √(17 - x) = 12
√(17 + x) (17 - x) = 12
Squaring both sides,
(√(17 + x) (17 - x))^2 = 12^2
(17 + x) (17 - x) = 144
17(17 - x) + x(17 - x) = 144
289 - 17x + 17x - x^2 = 144
x^2 = 289 - 144
x^2 = 145
x = ±√145
Answer:
I think the answer is 0.5.
Answer:
Step-by-step explanation:
given
To rationalise the denominator multiply the numerator/ denominator by the conjugate of the denominator.
the conjugate of 3 - is 3 + , hence
×
= (15 + 5 - 6 - 14 ) / (9 - 7)
= ← in simplified radical form
The answer is 2700 cubic feet. Hope this helps!
Answer:
x = 1.8
Step-by-step explanation:
10.4 - 5 = 5.4 (subtract 5 from each side)
to isolate the variable, x, divide each side by 3
5.4/3 = 1.8