The answer to o this question is the fourth answer or d
Answer:
f(x) = -2x² - 8x - 2
General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Expand by FOIL (First Outside Inside Last)
- Standard Form: f(x) = ax² + bx + c
- Vertex Form: f(x) = a(bx + c)² + d
Step-by-step explanation:
<u>Step 1: Define function</u>
Vertex Form: f(x) = -2(x + 2)² + 6
<u>Step 2: Find Standard Form</u>
- Expand by FOILing: f(x) = -2(x² + 4x + 4) + 6
- Distribute -2: f(x) = -2x² - 8x - 8 + 6
- Combine like terms (constants): f(x) = -2x² - 8x - 2
Answer:
D. 6x^4+3x^3y
Step-by-step explanation:
3x^3(2x+y)
distribute 3x^3
3x^3*2x+3x^3*y
=6x^4+3x^3y
Answer:
$48
Step-by-step explanation:
1. multiply the original price (60) by the percent off (20% or 0.20)
60 * .20 = 12 (the discount)
2. subtract the discount (12) from the origianl price (60)
60-12 = 48
Answer:
$21.76
Step-by-step explanation:
15% of $25.60= $3.84
$25.60-$3.84= $21.76