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3 years ago

I NEED HELP

Mathematics

1 answer:

andriy [413]3 years ago

6 0

Answer:

all work is shown and pictured

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i o n f e h y=x3- 3x2- 9 x + 2 The largest and smallest values of the function [ - 2 ; 4 ]At intervals.

Oksana_A [137]

Answer:

Step-by-step explanation:

Given the function :

y=x³ - 3x² - 9x + 2. The largest and smallest values of the function at interval [-2, 4]

We substitute x values in the interval (-2 to 4) into the equation and solve for y

At x = - 2

y = (-2)³ - 3(-2)² - 9(-2) + 2 = 0

At x = - 1

y = (-1)³ - 3(-1)² - 9(-1) + 2 = 7

At x = 0

y = (-0)³ - 3(-0)² - 9(-0) + 2 = 2

At x = 1

y = (1)³ - 3(1)² - 9(1) + 2 = - 9

At x = 2

y = (2)³ - 3(2)² - 9(2) + 2 = - 20

At x = 3

y = (3)³ - 3(3)² - 9(3) + 2 = - 25

At x = 4

y = (4)³ - 3(4)² - 9(4) + 2 = - 18

Function is greatest at

7 0

2 years ago

If the area of a square plot of land is 9 miles squared, what is the perimeter of this land?

tatyana61 [14]

Answer:

$\huge{ \fbox{ \sf{12 \: miles}}}$

Step-by-step explanation:

Given,

Area of a square plot = 9 miles

First, finding the length of the land

$\boxed{ \sf{Area \: of \: a \: square \: = \: {length}^{2} }}$

$\mapsto{ \sf{9 = {length}^{2} }}$

$\mapsto{ \sf{ {length}^{2} = 9}}$

$\mapsto{ \sf{ \sqrt{ {(length)}^{2} }} = \sqrt{9} }$

$\mapsto{ \sf{length = 3 \: miles}}$

Now , finding the perimeter of the land :

$\boxed{ \sf{perimeter \: of \: a \: square = 4 \: * length}}$

$\mapsto{ \sf{perimeter \: = \: 4 \: * \: 3}}$

$\mapsto{ \sf{perimeter \: = 12 \: miles}}$

The perimeter of the land = 12 miles

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

3 0

2 years ago

El rodeo has 837 students , El rodeo has 78 more students than hawthorne how many students are there at Hawthorne school later h

elena-s [515]

The number of Elrodeo students is 837.

Let the number of students at Hawthorne be x.

"El rodeo has 78 more students than hawthorne"

this means that

837 = 78 + x
x = 837 -78 = 759

Answer: Hawthorne has 759 students

5 0

3 years ago

A boa constrictor is 18 inches long at birth and grows 8 inches per year. Write an equation that represents the length y (in fee

Sloan [31]

Answer: y= 3/2x+2/3

You have to convert everything to feet because y is in feet

4 0

2 years ago

I I know that it's already circled, but I'm just not sure what the right answer is.

Nimfa-mama [501]

Answer:

I think it is D. You might need to ask somebody else to be positive!!

Step-by-step explanation:

6 0

2 years ago