If you divide both by 11, you get 7/9. 7/9 is the fraction in simplest form.
Answer:
L'M'N' is scaled by 2.5
Step-by-step explanation:
10 / 4 = 2.5
20 / 8 = 2.5
Answer:
Dawn is selling her MP3 player for 30$.
Step-by-step explanation:
40 x 0.75 = 30
Hope this helps!! :)
Answer:
number 3
Step-by-step explanation:
Answer:
<h3>
f(x) = -x² + 20x - 96</h3>
Step-by-step explanation:
Parabola f(x) = ax² + bx + c passing through points (8,0) and (12,0) means that 8 and 12 are its root and (x-8) and (x-12) are its factors
So we get:
f(x) = a(x - 8)(x - 12)
The parabola passes through point (13, -5) that means if x=13 then f(x)=-5
So:
-5 = a(13 - 8)(13 - 12)
-5 = a(5)(1)
-5 = 5a
a = -1 {<0 so parabola opens down}
Therefore:
f(x) = -(x - 8)(x - 12)
And expanding:
f(x) = -(x² - 12x - 8x + 96)
So the standard form equation of the parabola:
<u>f(x) = -x² + 20x - 96</u>
