The data 12, x, 24, 16, and 18 have a mean, average, of 15. Find the value of x. (Hint: Replace the values to determine x.) * Wh
1 answer:
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Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Midpoint Formula:
Step-by-step explanation:
<u>Step 1: Define</u>
Endpoint (-1, 4)
Endpoint (5, 7)
<u>Step 2: Find midpoint</u>
- Substitute:
- Add:
- Divide:
Answer:
x = 90°
Step-by-step explanation:
Given
- 4 - 6cosx = - 4 - 4cosx ( add 4cosx to both sides )
- 4 - 2cosx = - 4 ( add 4 to both sides )
- 2cosx = 0, hence
cosx = 0
x = (0) = 90° for 0 ≤ x ≤ 180