SOMEONE THAT CAN HELP ME ASAP

Mathematics

1 answer:

Mars2501 [29]3 years ago

7 0

Answer: 288

Explanation:
Split the shape up into a rectangle and triangle (shown in picture).

Find the lengths of the triangle:
Height:
28 - 12 = 16
Base:
16 - 4 = 12

Find the area of the rectangle:
12 x 16 = 192

Find are of the triangle:
(12 x 16) ÷ 2 = 96

Add them together:
96 + 192 = 288

I hope this helped. If you hang questions feel free to ask.

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You operate a gaming website, www.mudbeast.net, where users must pay a small fee to log on. When you charged $4 the demand was 5

sertanlavr [38]

A) Demand function

price (x)          demand (D(x))

4                      540

3.50                  810

D - 540          810 - 540
----------- = -----------------
x - 4               3.50 - 4

D - 540
----------- = - 540
x - 4

D - 540 = - 540(x - 4)

D = -540x + 2160 + 540

D = 2700 - 540x

D(x) = 2700 - 540x

Revenue function, R(x)

R(x) = price * demand = x * D(x)

R(x) = x* (2700 - 540x) = 2700x - 540x^2

b) Profit, P(x)

profit = revenue - cost

P(x) = R(x) - 30

P(x) = [2700x - 540x^2] - 30

P(x) = 2700x - 540x^2 - 30

Largest possible profit => vertex of the parabola

vertex of 2700x - 540x^2 - 30

When you calculate the vertex you find x = 5 /2

=> P(x) = 3345

Answer: you should charge a log-on fee of $2.5 to have the largest profit, which is $3345.

5 0

3 years ago

Need number 2 please!!

valentina_108 [34]

Answer:

Step-by-step explanation:

note that i = $\sqrt{-1}$