All categories

1 year ago

HELP PLEASE I NEED A ANSWER ASAP

Mathematics

2 answers:

Gemiola [76]1 year ago

5 0

4x^(3)+12x^(2)-20x = 4x

cluponka [151]1 year ago

3 0

Answer:

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

Step-by-step explanation:

GCD of the polynomial is 4 since 5 is the highest number that divides 4, 12 and 20. So since we are factoring the negative sign with the GCD we get

-4(x^3-3x^2+5x). However, there is a common factor of x within the polynomial too so we can bring that out too so we get

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

You might be interested in

Find f^(-1)for the function f(x)= (1)/(x+2)

Artyom0805 [142]

If $f(x)$ and $f^{-1}(x)$ are inverses of each other, then we have

$f\left(f^{-1}(x)\right) = x$

Since $f(x) = \frac1{x+2}$ , we have

$f\left(f^{-1}(x)\right) = \dfrac1{f^{-1}(x)+2} = x$

Solve for $f^{-1}(x)$ :

$\dfrac1{f^{-1}(x)+2} = x \\\\ 1 = x\left(f^{-1}(x)+2\right) \\\\ 1 = x f^{-1}(x) + 2x \\\\ x f^{-1}(x) = 1 - 2x \\\\ f^{-1}(x) = \dfrac{1-2x}x \\\\ \boxed{f^{-1}(x) = \dfrac1x - 2}$

(provided that x ≠ 0 and x ≠ -2)

3 0

2 years ago

The function f(x) = x2 is translated 7 units to the left and 3 units down to form the function g(x). Which represents g(x)?

nignag [31]

Answer:

B. g(x)=(x+7)^2-3

Step-by-step explanation:

Vertex form is F(x)= a(x-h)^2+k

a is the reflection

h and k are the vertex (x,y) = (h,k)

in this case there is no shrink or stretch (a)

if it is translating left or right it is "h". In this case it is translated left so its -7. However if you look at vertex form it is "x-h" so -7-7= +7

If it translating up or down it is "K". In this case it is translated down so its -3.

If it was translated up or right then its positive. If it was translated down or left its negative.

After you figure out what h and k are then you just plug it in. h=-7, k=-3

so the answer in vertex form is, g(x)=(x+7)^2-3

5 0

1 year ago

PLEASE ANSWER QUICK What is the unit rate for the ratio 96:8

frez [133]

Answer:

12:1

Step-by-step explanation:

96/8 = 12

4 0

2 years ago

Few drivers realize that steel is used to keep the road surface flat despite the weight of buses and trucks. Steel bars, deeply

Mrrafil [7]

Answer: Is reinforced with other material

Step-by-step explanation:

The options are:

A is expensive to build.

B usually cracks under heavy weights.

C looks like any other road.

D is reinforced with other material.

The passage best supports the statement that a concrete road are reinforced with other material. According to the information given in the passage, steel plays a vital role in keeping the road surface flat.

Steel bars are embedded in concrete so that the stresses cannot crack the slab. Therefore, it indicates that concrete road is reinforced with other material.

4 0

2 years ago

X/a+x/b=1 make x the subject of the formular

monitta

Answer:

x = $\frac{ab}{b+a}$