<h3><u>Answer</u>;</h3>
= 0.6
<h3><u>Explanation</u>;</h3>
Using Pythagoras theorrem
Base² + height ² = Hypotenuse²
Thus;
Base² = 15² - 12²
= 81
Base = √81 = 9
But; cosine = adjacent/hypotenuse
Hence; cos θ = 9/15
= 0.6
If an atom has 5 protons, 5 neutrons, and 3 electrons, the amom's charge is <span>A. +2. charge=protons-electrons.</span>
Explanation:
concentration is usually expressed as the number possibilites per number of out comes of the concen traction of the which is he concentration refers to the he concentration of oxygen
question one b
question 2 i think a
3 d
4 c
5 not sure but wanting to say d
6 letter b
7 not sure
8 idk
9 i have no idea