Math, asked by unuman550, 17 days ago

find the value of k for which the quadratic equation X square - 2 x minus 6 equal to zero has known real and equal root​

Answers

Answered by Nancy984
4

Answer:

Answer:

\huge \underline \red{✒Answer࿐}

✒Answer࿐

\bold{rate \: of \: return \times M.V = rate \: of \: dividend \times N.V}rateofreturn×M.V=rateofdividend×N.V

\begin{gathered}i. \: \: \: ⟹ \frac{7.5}{100} \times M.V = \frac{9}{100} \times 100 \\ \\ ⟹M.V = 120. \\ \\ M.V \: of \: a \: share = 120\end{gathered}

i.⟹

100

7.5

×M.V=

100

9

×100

⟹M.V=120.

M.Vofashare=120

\begin{gathered}ii. \: \: \: annual \: income \: on \: 1 \: share = \frac{9}{100} \times 100 = 9 \\ \\ ⟹ \: number \: of \: share \: bought = \frac{total \: number \: of \: income}{annual \: income \: on \: 1 \: share} \\ \\ ⟹ \: \frac{630}{9} = 70 \\ \\ ⟹ \: amount \: to \: be \: invested = 70 \times 120 = 8400\end{gathered}

ii.annualincomeon1share=

100

9

×100=9

⟹numberofsharebought=

annualincomeon1share

totalnumberofincome

9

630

=70

⟹amounttobeinvested=70×120=8400

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