Explanation

Correct sentence: "Pictures are usually hung on walls."

Last word is walls, which begins with w.

Explanation

Sofa, Chair and Bench are furniture.

House is a building (not furniture).

Explanation

A writer's primary tool is a pen; a carpenter's primary tool is a saw.

Explanation

Rearrange N I K P U M P → P U M P K I N, which spells the vegetable pumpkin.

Explanation

Mapping from examples: 3→R, 4→O, 5→P, 6→E, 1→A, 2→L.

So 5-4-6-1-3 → P-O-E-A-R.

Explanation

First letters move backward through the alphabet: Z, Y, X → W.

Second letters move forward: A, B, C → D.

Explanation

Elephant — it starts with E, which comes before H, M, and P in the alphabet.

Explanation

The value of eccentricity of a circle is 0.

This is because a circle is a special case of an ellipse where the two foci coincide at the single center point, resulting in a zero distance between the foci

As a measure of how much a shape deviates from a perfect circle, a circle, by its very nature, deviates from a circle by zero amount.

Explanation

4x + 12 = 36

4(x+3) = 36

x+3 = 36/4

x+3 = 9

Explanation

Trigonometry

Given height (opposite side) = 67.2 m

Angle = 31°

Let's find the length of the string (hypotenuse):

sin(31°) = opposite side / hypotenuse

sin(31°) = 67.2 / hypotenuse

hypotenuse = 67.2 / sin(31°)

hypotenuse ≈ 67.2 / 0.515

hypotenuse ≈ 130.49 m