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3 years ago

What are the real zeros of x^3 + 4x^2 − 9x − 36

1 answer:

6 0

X3 + 4x2 -9x -36
[x3 + 4x2] -9 [ x+4]
take x2 common factor from first praket
x2[x+4] -9 [x+4]
= [x+4] *[x2 -9]
so the zeros of this equation are -4 , 3, -3

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On a recent day 8 euros were worth $9 and 24 euros were worth $27 write an equation of the form y equals kx to show the relation

attashe74 [19]

Answer:

y=8x/9

Step-by-step explanation:

Given that 8 euros were worth $9 and

24 euros were worth $27.

Let y represent the number of Euros and x no of dollars.

Given that the relation is of the form y = kx+C

When x=0 y =0,

i.e. C =0

Hence equation is of the form y = kx

Substitute x=8 and y =9

We get 9 = 8k

Or k =8/9

Hence relation is y=8x/9 is the relation between x and y.

WE can verify this for 27 dollars worth 24 euros.

24 =8/9(27) is true.

Thus equation is verified.

6 0

3 years ago

A clothing store offers a shirt in 5 colors, in long or short sleeves, with a choice of three different collars. How many ways c

Igoryamba

That is just multiply the number of choices for each
5 colors
2 lengths of sleaves
3 colors

5*2*3=30

answer is 30
C is answer

5 0

3 years ago

Read 2 more answers

Create the pattern with the rule n×3+1

Kitty [74]

3n+1 is the answer
Hope this helps and please mark me as brainlest and like

5 0

2 years ago

16/x = 2/7 cross multiplication

WITCHER [35]

Answer:

x=56

Step-by-step explanation:

16 x 7= x * 2

$x=\frac{16 x7}{2}$

x=56

Hope this helps :)

8 0

2 years ago

Your leg has an endpoint of A at the top of your thigh, and endpoint C at your ankle. Imagine the length of your entire leg (fro

Ludmilka [50]

Answer: 25 inches

Step-by-step explanation:

Let's imagine that this line is the leg A______________B________C

x 11

|___________36____________|

From A to C = 36 inches

From B to C = 11 inches

To find A to B all we have to do is subtract the knee to ankle length (11) from total leg length (36), which 36 - 11 = 25 inches.

4 0

3 years ago