Answer:
(k × f)(x) = 2x³ + x²
General Formulas and Concepts:
<u>Algebra I</u>
- Functions
- Function Notation
- Expand by FOIL
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
f(x) = x²
k(x) = 2x + 1
(k × f)(x) = k(x)f(x)
<u>Step 2: Find</u>
- Substitute in functions: (k × f)(x) = x²(2x + 1)
- Expand [FOIL]: (k × f)(x) = 2x³ + x²
Circumfrence/Perimeter of a Circle
= 2πr
= (2)(π)(78)
= (π)(156)
Divide by four to get Quarter Circle
= (π)(156/4)
= (π)(39)
The Circumfrence / Perimiter of this quarter circle in terms of π is 39π mm.
Answer:
2
Step-by-step explanation:
Because it's a proportional relationship and it goes through the point (9, 18) the equation is y = 2x so when x = 1, y = 2.
57-10.51=46.49
46.49-8.73=37.76
37.76-8.47=29.29
Therefore Daniel has $29.29 left.