Math, asked by CYBERKING007, 2 months ago

Which type of roots does b^2 - 4ac < 0 has ?

A. Imaginary
B. Real
C. Non-Real
D. Non-Existenting
E. Half Real​

Answers

Answered by Anonymous
1

Step-by-step explanation:

no real root

mark me as branliest

Answered by ritikakumai008
2

Answer:

areaofsemicircle=

2

πr

2

hereradius(r)isgiven=6cm

,

\begin{gathered}therefore \\ area \: of \: semicircle \: = \: \frac{\pi \times (6) {}^{2} }{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{22 \times 36}{7 \times 2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{11 \times 36}{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{396}{7} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \huge \: \: \: \: \: \: \: = 56.57\end{gathered}

therefore

areaofsemicircle=

2

π×(6)

2

=

7×2

22×36

=

2

11×36

=

7

396

=56.57

Area of semicircle = 56.57

,

NOW

\begin{gathered}perimeter \: of \: semicircle \: = \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: (\pi + 2)r \\ here \: we \: have \: given \: radius(r) = \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 6cm\end{gathered}

perimeterofsemicircle=

(π+2)r

herewehavegivenradius(r)=

6cm

,

\begin{gathered}therefore \\ perimeter \: of \: semicircle \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (\pi + 2) \times 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = ( \frac{22}{7} + 2) \times 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{22 + 14}{7} \times 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{36}{7} \times 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 5.143 \times 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \huge = 30.858\end{gathered}

therefore

perimeterofsemicircle

=(π+2)×6

=(

7

22

+2)×6

=

7

22+14

×6

=

7

36

×6

=5.143×6

=30.858

Perimeter of semicircle =

30.858cm

Step-by-step explanation:

hope it's helpful,,,,

@—

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