Explanation

The expression ad - bc is called the Determinant of A, denoted as |A|.

Explanation

To find the size of the class interval:

Size = (Greatest value - Lowest value) / Number of intervals

= (21 - 3) / 3

= 18 / 3

= 6

Explanation

Trypsin works best in a basic (alkaline) environment like the small intestine.

The stomach is highly acidic, which inhibits trypsin’s activity.

Explanation

When an acid reacts with a base, a neutralization reaction occurs.

This produces salt and water as the main products.

Explanation

Pakistan’s strategic location links key regions — South Asia, Central Asia, and the Middle East.

This makes it a vital route for international trade, energy transit, and regional connectivity.

Explanation

Given points A(3, 1) and B(7, -5), let's calculate the distance using the distance formula:

Distance = √((x2 - x1)² + (y2 - y1)²)

= √((7 - 3)² + (-5 - 1)²)

= √((4)² + (-6)²)

= √(16 + 36)

= √52

= √(4 × 13)

= 2√13

Explanation

Everywhere means تمام مقامات

Nowhere means کسی جگہ میں بالکل نہیں

Explanation

20% of 180 = (20/100) × 180

= 0.2 × 180

= 36

Explanation

Sympathy means ہمدردی

Empathy means ہمدردی

Explanation

Constitutional Purpose:

A constitution serves as the supreme legal document that:

• Outlines the government’s structure (e.g., separation of powers in Pakistan’s 1973 Constitution).
• Defines fundamental laws and citizens’ rights (e.g., Articles 8-28 in Pakistan’s Constitution).
• Establishes procedures for governance (e.g., elections, judiciary).