| LIST I | LIST II | ||
| A. | The solution set of the inequality \(-5x > 3, x\in R\), is | I. | \([\frac{20}{7},∞)\) |
| B. | The solution set of the inequality is, \(\frac{-7x}{4} ≤ -5, x\in R\) is, | II. | \([\frac{4}{7},∞)\) |
| C. | The solution set of the inequality \(7x-4≥0, x\in R\) is, | III. | \((-∞,\frac{7}{5})\) |
| D. | The solution set of the inequality \(9x-4 < 4x+3, x\in R\) is, | IV. | \((-∞,-\frac{3}{5})\) |
To solve the problem of matching List I with List II, we'll assess which solution set corresponds to each inequality in List I.
A. The inequality is \( -5x > 3 \). Solving for \( x \):
\(-5x > 3 \\ x < -\frac{3}{5}\)
The solution set is \(x \in (-\infty,-\frac{3}{5})\), corresponding to IV.
B. The inequality is \(\frac{-7x}{4} \leq -5\). Solving for \( x \):
\(\frac{-7x}{4} \leq -5 \\ -7x \leq -20 \\ x \geq \frac{20}{7}\)
The solution set is \(x \in [\frac{20}{7},\infty)\), corresponding to I.
C. The inequality is \( 7x - 4 \geq 0 \). Solving for \( x \):
\(7x \geq 4 \\ x \geq \frac{4}{7}\)
The solution set is \(x \in [\frac{4}{7},\infty)\), corresponding to II.
D. The inequality is \(9x - 4 < 4x + 3\). Solving for \( x \):
\(5x < 7 \\ x < \frac{7}{5}\)
The solution set is \(x \in (-\infty,\frac{7}{5})\), corresponding to III.
Thus, the correct matches are:
The correct answer from the options provided is:
For any natural number $k$, let $a_k = 3^k$. The smallest natural number $m$ for which \[ (a_1)^1 \times (a_2)^2 \times \dots \times (a_{20})^{20} \;<\; a_{21} \times a_{22} \times \dots \times a_{20+m} \] is:
If a heterozygous tall plant (Tt) is crossed with a dwarf plant (tt), what will be the phenotypic ratio of the offspring?