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Advocard [28]
4 years ago
12

Not sure how to do this problem

Mathematics
1 answer:
myrzilka [38]4 years ago
5 0
First we need to write the factors of the polynomial. In order for 1, 4, and -3 to be roots, they need to be the x values that make the polynomial equal 0.

(x - 1) = 0

That would be the factor for x = 1 because when we plug 1 in for x we get 1 - 1 which equals 0.

Multiply all the factors together.

(x-1)(x-4)(x+3)=0

Now FOIL.

(x^2-5x+4)(x+3)

x^3-2x^2-11x+12
You might be interested in
The value of y is directly proportional to the value of x. When x=3.5, the value of y is 14. What is the value of y when x = 28?
inna [77]

Answer:

x = 7

Step-by-step explanation:

y = 14

14 x 2 = 28

Therefore:

3.5 x 2 = 7

7 0
3 years ago
An open box will be made from a rectangular piece of cardboard that is 8 in. by 10 in. The box will be cut on the dashed red lin
Anna35 [415]

Answer:

C) 52 in^3

Step-by-step explanation:

The first is to determine the formula of the volume of the box, which would be the following:

 V = height * length * width

Knowing that we have a rectangular piece we will determine the maximum volume, we will double a distance x (which will be the height) in the width and length of the piece, therefore as it is on both sides, the length and width are defined from the Following way:

length = 10 - 2 * x

width = 8 - 2 * x

height = x

Now we calculate the volume:

V = x * (10-2 * x) * (8-2 * x)

To determine the maximum volume we will give values to x in order to see how it behaves:

Let x = 2.5

V = (5) * (3) * (2.5) = 37.5

Let x = 2

V = (6) * (4) * (2) = 48

Let x = 1.5

V = (7) * (5) * (1.5) = 52.5

Let x = 1

V = (8) * (6) * (1) = 48

Let x = 0.5

V = (9) * (7) * (0.5) = 31.5

It can be seen that the greatest volume is obtained when the height is equal to 1.5 and its volume is 52.5 in ^ 3

8 0
4 years ago
PLS SOLVE I WILL GIVE BRAINLIEST TO CORRECT ANSWER.
Korolek [52]

Answer:

I think the answer is D because you cant find the other measures unless you have at least one angle measure but you don't so you cant determine the answer.

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST !!
melamori03 [73]

Answer:

<EFC and <DCF

Step-by-step explanation:

Alternate interior angles: Angles that are inside the parallel lines and are opposite from each other

<DCA and <DCF are supplementary angles meaning they add up to 180 degrees.

<EFH and <GFC are vertical angles and both angles are not inside the parallel lines.

<BCF and <GFH are not alternate interior angles because both the angles aren't inside the parallel lines.

<EFC and <DCF are alternate interior angles because they are on opposite sides of the transversal and inside the parallel lines.

3 0
3 years ago
Simplify -3sqrt2 + 3sqrt8.<br><br> A. 9sqrt2<br> B. 0<br> C. 3sqrt2<br> D. -3sqrt2
gogolik [260]

Check this attachment

6 0
3 years ago
Read 2 more answers
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