The discriminant of the equation 4 x² - 5 x - 3 = 0 is

Answer:

2:1

Step-by-step explanation:

1 km = 1000 m

17 km= 1700 m

3400/1700

=2:1

Answer:

16%

Step-by-step explanation:

let the price of 1 apple is 1

so the price of 21 apple is 21

and cp = sp +loss

cp = 21 +4 =25

loss% = loss/cp ×100

4/25 × 100 = 16%

Answer:

[tex]\qquad\qquad\qquad\boxed{ \sf{ \: \bf \:Loss\% \: = \: 16 \: \% \: }} \\ \\ [/tex]

Step-by-step explanation:

Given that, By selling 21 apples, vendor losses the selling price of 4 apples.

Let assume that

[tex]\sf \:Selling \: Price \: of \: 1 \: apple \: = \: Rs \: x \\ \\ [/tex]

So,

[tex]\sf\implies \sf \:Selling \: Price \: of \: 21 \: apples \: = \: Rs \: 21x \\ \\ [/tex]

Now,

[tex] \sf \:Loss = Selling \: Price \: of \: 4 \: apples \: \\ \\ [/tex]

[tex]\sf\implies \sf \:Loss = Rs \: 4x \: \\ \\ [/tex]

We know,

Selling Price, Cost Price and Loss are connected by the symbol

[tex]\sf \:Cost \: Price \: = \: Selling \: Price \: + \: Loss \\ \\ [/tex]

On substituting the values, we get

[tex]\sf \:Cost \: Price \: = \: 21x \: + \: 4x \\ \\ [/tex]

[tex]\sf\implies \sf \:Cost \: Price \: = \: 25x \\ \\ [/tex]

Now, We know

Selling Price, Cost Price and Loss % are connected by the relationship

[tex]\sf \:Loss\% \: = \: \dfrac{Loss}{Cost \: Price} \times 100 \: \% \\ \\ [/tex]

[tex]\sf \:Loss\% \: = \: \dfrac{4x}{25x} \times 100 \: \% \\ \\ [/tex]

[tex]\sf \:Loss\% \: = \: \dfrac{4}{1} \times 4 \: \% \\ \\ [/tex]

[tex]\sf\implies \bf \:Loss\% \: = \: 16 \: \% \\ \\ [/tex]

[tex]\rule{190pt}{2pt}[/tex]

Additional Information

[tex]\begin{gathered}\: \: \: \: \: \: \begin{gathered}\begin{gathered} \footnotesize{\boxed{ \begin{array}{cc} \small\underline{\frak{\pmb{ {More \: Formulae}}}} \\ \\ \bigstar \: \bf{Gain = \sf S.P. \: – \: C.P.} \\ \\ \bigstar \:\bf{Loss = \sf C.P. \: – \: S.P.} \\ \\ \bigstar \: \bf{Gain \: \% = \sf \Bigg( \dfrac{Gain}{C.P.} \times 100 \Bigg)\%} \\ \\ \bigstar \: \bf{Loss \: \% = \sf \Bigg( \dfrac{Loss}{C.P.} \times 100 \Bigg )\%} \\ \\ \\ \bigstar \: \bf{S.P. = \sf\dfrac{(100+Gain\%) or(100-Loss\%)}{100} \times C.P.} \\ \: \end{array} }}\end{gathered}\end{gathered}\end{gathered}[/tex]

the given equation is

-y2+2xy+3x y

put x=1 and y=2

(-2×2)+(2×1×2)+(3×1×1×2)

(-4)+4+6

10+(-4)

10-4

=6

Answer:

The answer is :

Explanation:

Lexical words all have clear meanings that you could describe to someone. They're also all nouns, which is one type of lexical word. Functional, or grammatical, words are the ones that it's hard to define their meaning, but they have some grammatical function in the sentence.