Step-by-step explanation:
m < QRS = m < URS + m < QRU
30x - 4 = 60° + 15x - 4
15x = 60°
X = 4°
<u>m < QRS</u> = 30 * 4 - 4 = <u>116°</u>
Weight is another term for the force from mass multiplied by acceleration due to gravity, the equation being expressed as

, being force, mass, and acceleration respectively.
We already have 2 parts of the equation,
Acceleration due to gravity on the planet is

Plug it into the equation


x

Weight or force from gravity is 60N.
Try this option:
1. the sides of the biggest triangle are 16; x and √(16²-x²); the sides of the smallest triange are x;5 and y. The smallest triangle ~ the biggest triangle. Using the property of the similar triangles:

2. according to the Pyphagorean theorem (in the smallest triangle):

answer: y=√55.