Explanation

Pulse beat is measured from an artery because it reflects the rhythmic pumping of the heart.

Common sites include the radial artery (wrist) and carotid artery (neck).

Explanation

The expression that represents "a number greater than -2 but less than 7" is:

{x | -2 < x < 7}

This notation correctly indicates x is between -2 and 7, excluding both -2 and 7.

Explanation

The correct sentence is: "Hyder is on vacation."

"On vacation" is the standard phrase in English.

Explanation

The active sentence "They were laughing at her" is in past continuous tense.

In passive voice, it becomes:

"She was being laughed at by them."

Structure: was/were being + past participle (laughed).

Explanation

Given:

x + 8 = 4

Subtract 8 from both sides:

x = -4

Now, find x + 4:

x + 4 = -4 + 4 = 0

Explanation

The question asks how many cookies Ali can eat in his completely empty stomach.

The answer is 1 because after eating the first cookie, his stomach won't be empty anymore.

Explanation

A nanometer (nm) is equal to one-billionth of a meter, written in scientific notation as 1 × 10⁻⁹ m or 0.000000001 meters.

It is commonly used to measure objects at the atomic and molecular scale.

Explanation

Artificial means مصنوعی، قدرتی نہ ہو

Unreal means غَیر حَقِیقی

Man-made means انسان ساختہ

Explanation

Let's calculate:

√(9) = 3

6 + 3 = 9

√(9) = 3

22 + 3 = 25

√(25) = 5

Explanation

Obdurate means ضد کرنے والا

Yielding means بات ماننے والا

Flexible means لچکدار