2 years ago

Simplify: –3|–2| + 4|–5| Please show work for full credit for full credit.

Mathematics

2 answers:

dybincka [34]2 years ago

7 0

Answer:

-6

Step-by-step explanation:

-3-2+4-5

=-5+4-5

=-1-5

=-6

Galina-37 [17]2 years ago

3 0

Answer:

Step-by-step explanation:

-3|-2|+4|-5|

-3x2+4x5

-6+20

Hope that helps :)

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The manufacturer of a CD player has found that the revenue R (in dollars) is R(p)= -4p2+1200p, when the unit price is p dollars.

qaws [65]

Answer: 9000$

Step-by-step explanation:

Let 's use the formula to find the vertex of the parabola:

ax²+bx+c=0

$\displaystyle x_v=-\frac{b}{2a} \\\\ Where :\\\\ y_v- maximum \ \ income \\\\ y_v=a(x_v)^2+bx_v+c \\\\ Then \ in \ \ our \ \ case : \\\\ -4p^2+1200p =0 \\\\ x_v=-\frac{1200}{-4\cdot 2} =150 \\\\ y_v=-4\cdot (150)^2+150\cdot 1200 \\\\ y_v=150\cdot 1200-150\cdot 600 \\\\ y_v=600\cdot 150=\bf 9000 \$