Explanation

A composite number is a positive integer that has at least one positive divisor other than 1 and itself.

Let's examine the numbers:

4: divisors are 1, 2, and 4 (composite)

9: divisors are 1, 3, and 9 (composite)

15: divisors are 1, 3, 5, and 15 (composite)

Since all numbers (4, 9, 15) have divisors other than 1 and themselves, they are composite numbers.

The group 4, 9, 15 consists entirely of composite numbers.

Explanation

To factorize the quadratic expression 2x² + 5x + 2, we need to find two numbers whose product is 2 × 2 = 4 and whose sum is 5. These numbers are 4 and 1.

2x² + 5x + 2 = 2x² + 4x + x + 2

= 2x(x + 2) + 1(x + 2)

= (x + 2)(2x + 1)

Explanation

For adjectives with more than two syllables, use "more" to form the comparative.

So, "more beautiful" is correct.

Explanation

5.2% of 500 = (5.2 / 100) × 500 = 26

It’s a direct percentage calculation.

Explanation

Given 2 is a zero of the polynomial 2x⁴ + x³ + kx² - 8, we substitute x = 2 into the polynomial and set it equal to 0:

2(2)⁴ + (2)³ + k(2)² - 8 = 0

2(16) + 8 + 4k - 8 = 0

32 + 8 + 4k - 8 = 0

32 + 4k = 0

Now, solve for k:

4k = -32

k = -32/4

k = -8

Explanation

"Stars" is plural, so the auxiliary verb "do" is correct.

The base form "shine" follows "do" in questions.

Explanation

لفظ "شجر" کا جمع "اشجار" ہے۔

شجر کا مطلب درخت ہے اور "اشجار" درختوں کی جمع ہے۔

Explanation

High-level programming languages are commonly classified into three categories: procedural, object-oriented, and functional.

These categories are based on different programming paradigms that define how programmers structure and write code.

Explanation

The cube of 12 is:

12 × 12 × 12 = 1728

Explanation

عمود کا مطلب ستون ہوتا ہے، اور یہاں اس کا مطلب ہے کہ نماز اسلام کا ستون ہے جو اسے قائم رکھنے والا اہم عمل ہے۔

اس حدیث میں نماز کو اسلام کا اہم ستون قرار دیا گیا ہے۔