3 years ago

Determine intervals y= -x^3 + 3x^2 -2

Mathematics

1 answer:

motikmotik3 years ago

3 0

Answer:

(2,2) and (0,-2)

Step-by-step explanation:

Use the website desmos for questions like graphing

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How many square inches of paper did Benjamin use to wrap the box

ozzi

Answer:

$2,124\ in^{2}$

Step-by-step explanation:

we know that

The surface area of a rectangular prism is equal to

$SA=2B+Ph$

where

B is the area of the base

P is the perimeter of the base

h is the height

In this problem we have

$B=18*24=432\ in^{2}$

$P=2(18+24)=84\ in$

$h=15\ in$

substitute

$SA=2(432)+(84)(15)=2,124\ in^{2}$

7 0

3 years ago

during the 31 nights of October , Keith kept track of his sleep. he slept a total of 297 hours . How many hours of sleep did he

love history [14]

297/31 = 9.6 hours

i think

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3 years ago

Using the following image, apply what you have learned about linear pairs and solve for

posledela

It would be 4x+76 = 180 in that order in the boxes. You would add 1 to 75 which got 76. Then you would subtract 76 from 180 and get 104 and then divide that by 4 and you would get 26. So x is 26

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3 years ago

70000 is ten times as much as

svetlana [45]

70,000 is ten times as much as 7,000. This is because 7,000 times 10 equals 70,000. I got this answer by dividing 70,000 by 10.

6 0

3 years ago

Solve for the roots in the equation below. In your final answer, include each of the necessary steps and calculations.

Nostrana [21]

$x^3-27i=0$
$x^3=27i$
$x^3=27e^{i\pi/2}$
$x=\left(27e^{i\pi/2}\right)^{1/3}$
$x=3e^{i(\pi/2+2\pi k)/3}$
$x=3e^{i\pi(4k+1)/6}$

where $k\in\{0,1,2\}$ . This means you have

$x=3e^{i\pi/6}=\dfrac32(\sqrt3+i)$
$x=3e^{i5\pi/6}=\dfrac32(-\sqrt3+i)$
$x=3e^{i9\pi/6}=-3i$

as the solutions to the original equation.

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3 years ago