Answer:
- 936/5
Step-by-step explanation:
(78x12)/-5
= -936/5
Answer:
f(k + 4) = -2k² - 13k - 28
General Formulas and Concepts:
<u>Pre-Algebra</u>
<u>Algebra I</u>
- Terms/Coefficients
- Expand by FOIL
- Functions
- Function Notation
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
f(x) = -2x² + 3x - 8
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em> [Function f(x)]: f(k + 4) = -2(k + 4)² + 3(k + 4) - 8
- Expand [FOIL]: f(k + 4) = -2(k² + 8k + 16) + 3(k + 4) - 8
- [Distributive Property] Distribute: f(k + 4) = -2k² - 16k - 32 + 3k + 12 - 8
- Combine like terms: f(k + 4) = -2k² - 13k - 28
3 more means plus three and one third means x divided by 3 so the expression would be:
1/3x + 3
Answer:
D. 7.6
Step-by-step explanation:
y² = 7² + 3²
y² = 49 + 9
y² = 58
y = (58)^½
y = Rationalize(7.61577310586) ~ 7.6
