It will have 15 protons because the atomic number will always equal the number of protons and vice versa
Answer:
y = 3
Step-by-step explanation:
The 2 right triangles inside the right triangle are similar, then ratios of corresponding sides are equal, that is
=
( cross- multiply )
y² = 63 ( take the square root of both sides )
y =
= 3
Answer:
Pentagon
Step-by-step explanation:
Answer:
1. 76.5 days 2. $57.69 per day
Step-by-step explanation: