Explanation

The correct preposition is "to" because it indicates the direction of the action of speaking.

We say "talk to someone" when referring to communication with a person.

Explanation

Agree and Disagree are antonyms — words with opposite meanings.

Pull and Push are also antonyms, matching the same relationship.

Explanation

Cockroaches eat both plant and animal matter, making them omnivores.

They are scavengers that feed on a wide variety of organic material.

Explanation

The capsule is a protective, gelatinous layer outside the bacterial cell wall.

It helps bacteria avoid phagocytosis and enhances their ability to cause disease.

Explanation

In ax² + bx + c = 0, if > 0, b > 0, and c > 0, the parabola opens upward and lies entirely above the x-axis unless discriminant D = b² - 4ac ≥ 0.

If real roots exist, they are negative because both b and c are positive.

Explanation

روزمرہ سے مراد ہے اہلِ زبان کی عام اور مخصوص بول چال۔

اس میں الفاظ اپنے حقیقی معنوں میں استعمال ہوتے ہیں، محاوروں کے برعکس۔

Explanation

Step 1: Recall Ohm's Law

V = IR, where V is voltage, I is current, and R is resistance.

Step 2: Convert current to amperes

300 mA = 0.3$ A

Step 3: Calculate the resistance

R = V/I = 1.5/0.3 = 5 Ω

Explanation

The formula ∑x/n calculates the arithmetic mean of a set of numbers, where:

∑x = sum of all values

n = number of values

This formula provides the average value of the dataset.

Explanation

The absorption of X-rays in a given material follows an exponential curve, described by the Beer-Lambert law:

I(x) = I₀ × e^(-μx)

where I(x) is the intensity of the X-rays after passing through a thickness x of the material, I₀ is the initial intensity, μ is the linear attenuation coefficient, and x is the thickness of the material.

Explanation

In this context, a "realistic price" means a fair and reasonable price based on market value.

Correct sentence: I decided to sell a piece of land when I was offered a more realistic price.