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Dominik [7]
3 years ago
10

Someone please tell me

Mathematics
1 answer:
Lena [83]3 years ago
5 0

Answer:

1,018 ft3

Step-by-step explanation:

\pi \: r \times rh \\

\frac{22}{7}  \times 6 \times 6 \times 9 \\  \frac{7128}{7}  \\  = 1018.2857 \\  = 1018.286

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Which equation describes the line that passes through the points (-4, 19) and (2, -1)
dangina [55]

Answer:

y=-5/2x+4

Step-by-step explanation:

find the slope by using y2-y1/x2-x1

-1-19/2-(-4)

simplify

-20/8

simplify

-5/2

use slope-intercept form, y=mx+b

since we know the slope, find b

plug in one of the ordered pairs into the equation

-1=(-5/2)(2)+b

simplify

-1= -10/2+b

simplify

-1=-5+b

add 5 to both sides

b=4

plug b into y=-5/2x+b

y=-5/2x+4

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
3 years ago
The sales of a certain product after an initial release can be found by the equation s=10√5t+15 where s represents the total sal
pogonyaev
No it’s not because maybe there’s not good
5 0
3 years ago
True or false a rectangle with four right angles is a square
iragen [17]
False a rectangle could never be a square
8 0
3 years ago
Read 2 more answers
WILL MARK YOU BRAINLIEST HURRY PLZ IM ON A TIME LIMIT
alexdok [17]

Answer:

9

Step-by-step explanation:

according to the question

27×⅓

9

7 0
2 years ago
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