Need nowfind the discriminant of the following equation. 9x^2+12x+4=0
1 answer:
So to find the discriminant of a quadratic equation, the formula is b² - 4ac with a = x² coefficient, b = x coefficient, and c = constant. In this case, our equation is
Firstly, solve the multiplications and the exponents:
Next, subtract and we find that our discriminant is 0.
*Additional Info: Since the discriminant is zero, this means that this quadratic equation has 1 real solution.
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Answer:
Step-by-step explanation:
x is the length of the side opposite the reference angle of 32, and 10 is the side length adjacent to the reference angle. This satisfies the tangent ratio where
and solving for x:
x = 10tan32
Answer:
Therefore the measur angle ACB
Step-by-step explanation:
Given:
ΔABC is a right Triangle at ∠A = 90°
AB = 15 ....Side Opposite to ∠ACB
AC = 8 ....Side Adjacent to ∠ACB
To Find:
m∠ACB = ?
Solution:
In Right Angle Triangle ABC, Tangent Identity we have
Substituting the values we get
Therefore the measur angle ACB