Answer:
(a) discriminant is positive, 76
(b) the above tells you there are two real roots
Step-by-step explanation:
the discriminant is 'b² - 4ac'
3x² - 2x - 6 = 0 ∴ a = 3, b = -2, c = -6
(-2)² - 4(3)(-6) = 4 + 72
Answer: $768.50
Step-by-step explanation:
If $725 was the price before sales tax, $768.50 would be the total amount after the 6% sales tax increase.
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Answer:
The roots are
<h3>

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Step-by-step explanation:
9x² + 54x + 82 = 0
Using the quadratic formula
That's
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From the question
a = 9 , b = 54 , c = 82
Substitute the values into the above formula and solve
That's
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Separate the real and imaginary parts
That's
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We have the final answer as
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Hope this helps you
Answer:
9676
Step-by-step explanation:
100^2- 18^2= 9676
Answer:
Negative infinity to infinity, 3 to infinity.