Answer:
D
Step-by-step explanation:
if u said 5x=30 then its D
The figure is represented by the inequality y ≥ 5 · x² - 40 · x - 45. (Correct choice: C)
<h3>What inequality represents the figure</h3>
In accordance with the figure, we have an inequation of the form y ≥ f(x). Now we proceed to find the <em>quadratic</em> equation of the parabola:
f(x) = a · (x + 1) · (x - 9)
- 125 = a · (4 + 1) · (4 - 9)
- 125 = a · 5 · (- 5)
- 125 = - 25 · a
a = - 5
f(x) = 5 · (x + 1) · (x - 9)
f(x) = 5 · (x² - 8 · x - 9)
f(x) = 5 · x² - 40 · x - 45
The figure is represented by the inequality y ≥ 5 · x² - 40 · x - 45. (Correct choice: C)
To learn more on inequalities: brainly.com/question/17675534
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Answer:
5/6
Step-by-step explanation:
- 2/3 ÷ 4/5 = ⇒ <em>changing division to multiplication by reciprocal of the second fraction</em>
- 2/3 × 5/4 = ⇒ <em>simplify and multiply numerators and denominators</em>
- 5/6 ⇒ <em>here is the answer</em>
