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nydimaria [60]
3 years ago
8

Need help.... please...

Mathematics
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

The function f(x)= x^3-\mathbf{2}x^2-\mathbf{8}x

Step-by-step explanation:

The zeros of the polynomial are: -2,4,0

We can write them as

x=-2, x=4, x=0

or

x+2=0,x-4=0,x=0

Multiplying all terms:

(x+2)(x-4)(x)\\=((x-4)+2(x-4))(x)\\=x^2-4x+2x-8)x\\=(x^2-2x-8)x\\=x^3-2x^2-8x

So, the function f(x)= x^3-\mathbf{2}x^2-\mathbf{8}x

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The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals.
patriot [66]

Answer:

x=3.5

Step-by-step explanation:

if y = y

20x+115=10x+150

-10x        -10x

10x+115=150

     -115  -115

10x=35

x=3.5

brainllest please

5 0
3 years ago
Read 2 more answers
Will give brainiest answer, I need step-by-step answer
Korvikt [17]

Answer: Choice A

The volume expression is 4/3 times pi times (3x)^3

===================================================

The volume of a sphere is found through the formula

V = (4/3)*pi*r^3

so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3

In this case, the radius is r = 3x because this is half of the diameter d = 6x

We simply replace the r with 3x in that formula above

V = (4/3)*pi*r^3

V = (4/3)*pi*( r )^3

V = (4/3)*pi*(3x)^3 ... replace r with 3x

6 0
3 years ago
The ratio of apples to oranges in a basket is 3 to 4. what fraction of fruit in the basket consists of apples?​
mash [69]

Answer: 3/4 or 75/100

Step-by-step explanation:

3 divided by 4

Answer 3/4

Ration is 3:4

Fraction is 3/4

Fraction is also 75/100

Percentage is 75%

3 0
3 years ago
If -a=b and a+c=d then b+c=d
Effectus [21]
This is incorrect

-a = b
a + c = d
b + c = d is incorrect because it says a + c and not -a + c.

If you multiply the first line with -1 then you would get a = -b
So the final line would actually be -b+c=d
3 0
3 years ago
Shaneeka is saving up to buy a camera that costs $65.50. she already saved 3/4 of the amount she needs for the camera. How much
inna [77]

Answer:

$49.125

Step-by-step explanation:

3/4 of 65.50

= 3/4 × 65.50

= 49.125

4 0
3 years ago
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