Answer:
Explanation is in a file
Step-by-step explanation:
Answer:
R(x) = -0.05x^2 +80x
Step-by-step explanation:
Given the two points (x, p), the equation for the price associated with a given demand quantity can be written using the 2-point form:
p = (p2 -p1)/(x2 -x1)(x -x1) +p1
p = (40 -50)/(800 -600)(x -600) +50
p = -0.05x +80 . . . . simplify
Then the revenue equation is ...
R(x) = xp
R(x) = -0.05x^2 +80x
Find the reciprocal of 4 and multiply.
Multiply the numerators and denominators together:
B)10+5(8)+2(12)=74
10+40+24=74
<span>|1 - 4x| > 7
</span>(<span>1 - 4x) > 7 or (</span><span>1 - 4x) < -7
-4x > 7 - 1 or -4x < -7 - 1
-4x > 6 or -4x < -8
x < 6/-4 or x > -8/-4
x < -1.5 or x > 2
</span><span>{x|x < -1.5 ∪ x > 2}</span>
