-y²+2xy+3x²y (x=1 y=2)

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]

Discriminant of the equation.

⇒ 4x² - 5x - 3 = 0.

As we know that,

D = discriminant Or b² - 4ac.

Using this formula in this equation, we get.

⇒ D = (-5)² - 4(4)(-3).

⇒ D = 25 + 48.

⇒ D = 73.

Discriminant of the equation : 4x² - 5x - 3 = 0 is 73.

Nature of the roots of quadratic expression.

(1) Roots are real and unequal, if b² - 4ac > 0.

(2) Roots are rational and different, if b² - 4ac is a perfect square.

(3) Roots are real and equal, if b² - 4ac = 0.

(4) If D < 0 Roots are imaginary and unequal Or complex conjugate.

Answer:

D=73

Step-by-step explanation:

a=4

b=-5

c=-3

NOW

D=b^2-4(4)(-3)

=-5^2-4*(-12)

=25+48

D=73

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.

Explanation:

Xerophytic plants are adapted to living in dry conditions. Succulents, like the one pictured below, are a common example of xerophytes, but many other types of xerophytic trees, bushes, and plants exist. Most xerophytes live in deserts, but wet environments that don't allow the plant to access water, such as acid bogs or saline soil, can also result in xerophytic adaptations.