3 years ago

Please help me answer

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

Answer:

x=20

Step-by-step explanation:

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The braking distance in feet of a car traveling at v miles per hour is given by d=1/20v^2 + 2.2v

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Answer: B. 500

Step-by-step explanation:

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Find the fraction of Chandler's comic book collection that is made

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Im not sure what your asking

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A bowl contains 28 black,21 red,23 blue,and 10 green balls.A ball is drawn at random. P(blue)

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3 years ago

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2x^3-x^2+x-2 factorize

bekas [8.4K]

Answer:

$(x-1)(2x^2+x+2)$

Step-by-step explanation:

Factorize:

$f(x)=2x^3-x^2+x-2$

Factor Theorem

If f(a) = 0 for a polynomial then (x - a) is a factor of the polynomial f(x).

Substitute x = 1 into the function:

$\implies f(1)=2(1)^3-1^2+1-2=0$

Therefore, (x - 1) is a factor.

As the polynomial is cubic:

$\implies f(x)=(x-1)(ax^2+bx+c)$

Expanding the brackets:

$\implies f(x)=ax^3+bx^2+cx-ax^2-bx-c$

$\implies f(x)=ax^3+(b-a)x^2+(c-b)x-c$

Comparing coefficients with the original polynomial:

$\implies ax^3=2x^3 \implies a=2$

$\implies (b-a)x^2=-x^2 \implies b-2=-1 \implies b=1$

$\implies -c=-2 \implies c=2$

Therefore:

$\implies f(x)=(x-1)(2x^2+x+2)$

Cannot be factored any further.

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2 years ago

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(picture) Factoring Polynomials: GCF PLEASEE HELP!!!!! a b c d

tigry1 [53]

Answer:

greatest common factor is 2

Step-by-step explanation:

4k, 18k^4, 12

To find greatest common factor , we write each term in factor form

factors form are the product of the factor of given term

4k ---> 2 * 2* k

18k^2 ----> 3 * 3* 2* k*k

12 -----> 2*2*3

all the three terms has common factor 2

So GCf is 2

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3 years ago