Answer:
69
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
c - 9x
c = 6
x = -7
<u>Step 2: Evaluate</u>
- Substitute: 6 - 9(-7)
- Multiply: 6 + 63
- Add: 69
Answer:
C. 15 cm
Explanation:
The radius is the same in a circle. PA and PB has same length of 8 cm.
In order to find AC, find the length of PA and PC.
Here given:
- PC = PB + BC = 8 cm + 9 cm = 17 cm
Hence solve using Pythagoras theorem:
