3 years ago

Help?! Please! Thank you!!!!!!!

Mathematics

1 answer:

rjkz [21]3 years ago

3 0

I think this is right. Hope it helps

You might be interested in

Use a ratio to compare the values. Simplify the ratio<br>5m to 100cm

lubasha [3.4K]

The answer is 1m : 20cm

3 0

3 years ago

What is the slope of the line represented by the equation y=4/5x-3?

lawyer [7]

4/5 is the slope. When you isolate the y on one side of a linear equation, whatever number is with the x value is your slope.

4 0

3 years ago

Read 2 more answers

A gallon jug of milk is 5/6 full. After breakfast the jug is 1/12 full. Find the difference of the amounts before breakfast and

Oxana [17]

5/6=10/12

So 9/12 is the differemce

6 0

3 years ago

Read 2 more answers

The rate of change of revenue (in dollars per calculator) from the sale of x calculators is R′(x)=(x+1)ln(x+1)R ′ (x)=(x+1)ln(x+

jekas [21]

Answer:

Total revenue = $\frac{169}{2}\ln(13)-\frac{169}{4}$ dollars

Step-by-step explanation:

$R'(x)=(x+1)\ln(x+1)$

Integrate with respect to $x$ .

$R(x)=$ ∫ $(x+1)\ln(x+1)$ dx

Take $x+1=u$

Differentiate with respect to $x$

$dx=du$

So,

$R(x)=$ ∫ $u\ln(u)\,du$

Use integration by parts: ∫f g dx = f∫ g dx-∫(∫g dx)f' dx

Therefore,

$R(x)=$ $\frac{u^2}{2}\ln(u)$ $-$ ∫ $\frac{u^2}{2}\frac{1}{u}\,du$

= $\frac{u^2}{2}\ln(u)$ $-$ ∫ $\frac{u}{2}\,du$

Put $u=x+1$

$R(x)= \frac{(x+1)^2}{2}\ln(x+1)-\frac{(x+1)^2}{4}$

To find total revenue from the sale of the first 12 calculators, put $x=12$

$R(x)= \frac{(12+1)^2}{2}\ln(12+1)-\frac{(12+1)^2}{4}\\\\= \frac{(13)^2}{2}\ln(13)-\frac{(13)^2}{4}\\\\=\frac{169}{2}\ln(13)-\frac{169}{4}$

Total revenue = $\frac{169}{2}\ln(13)-\frac{169}{4}$ dollars

4 0

3 years ago

PLZ HELP!!!

bagirrra123 [75]

B) because the rate of change is 7, while for A the rate of change is 6 and for C and D the rate of change is 4

5 0

3 years ago

Read 2 more answers