Answer:
A
Step-by-step explanation:
Complex roots of quadratic functions occur when the <u>discriminant is negative</u>.
<u>Discriminant</u>
Evaluate the discriminant of each of the given equations.
As -24 < 0 the equation will have complex roots.
As 41 > 0 the equation does not have complex roots.
As 48 > 0 the equation does not have complex roots.
As 33 > 0 the equation does not have complex roots.
Learn more about discriminants here:
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Learn more about complex roots here:
brainly.com/question/26344541
Answer:
28.26
Step-by-step explanation:
π r² = A
A = (3.14) (3²)
A = 3.14 · 9 = 28.26
f(x) = mx + b
m = slope = -5
f(2) = 10 = (-5)(2) + b
b = 10 + 10 = 20
Ans. m=-5, b = 20
Answer:
Substitute y=x-2y=x−2 into y=-0.5x+4y=−0.5x+4.
x-2=-0.5x+4x−2=−0.5x+4
2 Solve for xx in x-2=-0.5x+4x−2=−0.5x+4.
x=4x=4
3 Substitute x=4x=4 into y=x-2y=x−2.
y=2y=2
4 Therefore,
\begin{aligned}&x=4\\&y=2\end{aligned}
x=4
y=2
Step-by-step explanation:
Answer:
a
Step-by-step explanation: