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3 years ago

Semi circle diameter is 8 what is the area

Mathematics

2 answers:

Tema [17]3 years ago

7 0

Nose niña, preste mas atención

Radda [10]3 years ago

3 0

Answer:

25.14

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The publisher of a recently released nonfiction book expects that over the first 20 months after its release, the monthly profit

wolverine [178]

Answer:

(a) $\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

(b)P'(5)=-($4.54) Thousand

(c)P'(11)=-($2.10) Thousand

(d)The fifth Month

Step-by-step explanation:

Given the monthly profit model:

$P(t)=\frac{240t-40t^2}{t^2+20}$

(a)We want to derive a model that gives the Marginal Profit, P' of the book.

We differentiate

$P(t)=\frac{240t-40t^2}{t^2+20}$ using quotient rule.

$\frac{dP}{dt}=\frac{(t^2+20)(240-80t)-(240t-40t^2)(2t)}{(t^2+20)^2}$

Simplifying

$\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

We have derived a model for the marginal profit.

(b) After 5 months, at t=5

Marginal Profit=P'(5)

$\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

$P^{'}(5)=\frac{4800-1600(5)-240(5)^2}{(5^2+20)^2}$

=-($4.54) Thousand of dollars

(c)Marginal Profit 11 Months after book release

$P^{'}(11)=\frac{4800-1600(11)-240(11)^2}{(11^2+20)^2}$

=-($2.10) Thousand of dollars

(d) Since the marginal profit at t=5 is negative, after the 5th Month, the profit starts to experience a steady decrease.

6 0

3 years ago

G is the centroid of triangle ABC. What is the length of AE? ? units

sukhopar [10]

G is the centroid it means that BG/FG=2 (G divides the median with this ratio)
3x+6/2x-1=2
3x+6=4x-2
x=8
then AG=26 then GE=13 so AE=39

6 0

4 years ago

Read 2 more answers

If g(x)=2(x-4), find the value of x if g(x) =20 A. 32 B. 12 C. 14 D. 10

SOVA2 [1]

I think it is 32, bc the value of x is 20 so your problem would look like this; 2 ( (20) - 4 )

5 0

3 years ago

Circle the problem in wich you need to regroup. Use the strategy that is easier to find the sum. A) 496+284. B) 482+506

Musya8 [376]

B, because I’m A, it has no number to regroup from(all the numbers can go into each other when yo add) In B, 6 can’t go into 2, so you’ll need to regroup, - hopefully this helped and hopefully I get the answer correct

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3 years ago

What is the reciprocal of 340

3241004551 [841]

Answer: 0.00294118

Step-by-step explanation:

1/340=0.00294118

5 0

4 years ago

Read 2 more answers