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3 years ago

12

Helppp pleaseeeeeeeeeeeeeeeeeeeeeee

1 answer:

Ugo [173]3 years ago

7 0

$y=4x$

because

$\frac{12}{3} =\frac{16}{4} =\frac{20}{5} =\frac{24}{6} =\frac{28}{7} =4$

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2. A cake in the shape of a circus tent is used as a centerpiece at a celebration. The cake consists of a cylinder and a cone. T

SashulF [63]

1808.64

Hope this helped!

8 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

2 years ago

Jon borrows $6.50 from his friends to pay for snacks, and $11.75 from his sister to go to the movies. how much money does he nee

Alex777 [14]

Answer:

Step-by-step explanation:

You need to add $6.50 and $11.75 and you get $18.25.

3 0

3 years ago

Read 2 more answers

Pleasee help online school is hard

BigorU [14]

Answer:

A triangle and a rectangle

Step-by-step explanation:

3 0

3 years ago

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Two girls had 45.00 to spend. one spent 6 dollars less than twice the other. solve

Varvara68 [4.7K]

Let, money spend by jane = x

Maggie spend = 2x-6

So, x+2x-6 = 45

3x= 51

x=17, 2x-6 = 28

So, jane spend $17 & Maggie spend $28

3 0

3 years ago