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gayaneshka [121]
2 years ago
13

Kevin is 393939 years old and Daniel is 333 years old. How many years will it take until Kevin is only 444 times as old as Danie

l?
Mathematics
1 answer:
V125BC [204]2 years ago
5 0

Kevin's present age is 39 years

Daniel's present age is 3 years

Let's assume  x be the required number of years

So, after x years

Kevin's age = 39+x

Daniel's age = 3+x

After x years  it take until Kevin is only 4 times as old as Daniel

so,

we get

39+x=4\times (3+x)

now, we can solve for x

39+x=12+4x

Subtract both sides by 12

39+x-12=12+4x-12

27+x=4x

Subtract both sides by x

27+x-x=4x-x

27=3x

Divide both sides by 3

9=x

So, it will take 9 years...........Answer

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Using the Factor Theorem, which of the polynomial functions has the zeros 2, radical 3 , and negative radical 3 ?
Alja [10]

Using the factor theorem, it is found that the polynomial is:

f(x) = x^3 - 2x^2 - 3x + 6

Given by the first option

---------------------------

Given a polynomial f(x), this polynomial has roots x_{1}, x_{2}, x_{n} using the factor theorem it can be written as: a(x - x_{1})*(x - x_{2})*...*(x-x_n), in which a is the leading coefficient.

---------------------------

In this question:

  • x_1 = 2
  • x_2 = \sqrt{3}
  • x_3 = -\sqrt{3}
  • By the options, leading coefficient a = 1

Thus:

f(x) = (x - 2)(x - \sqrt{3})(x + \sqrt{3})

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

f(x) = x^3 -2x^2 - 3x + 6

Which is the polynomial.

A similar problem is given that: brainly.com/question/4786502

5 0
2 years ago
Can someone help me out rq pls? Much would be appreciated.
stich3 [128]
I think your answer is B. -1/2

Explanation: the rise is -4 and the run is 8. If u divide those by 2, you get -2 and 4. You divide that by half and get -1/2??
8 0
2 years ago
-10x + 10x + 5x + 5 = 5<br> solve for x
Maksim231197 [3]

Answer:

x = 0

Step-by-step explanation:

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Please solve and show work
zheka24 [161]

Answer:

Step-by-step explanation:

9. f(g(-n))

g(-n) = -(n²+5) = -n²-5

f(g(-n)) = 2n+1 (-n²-5 )

2n(-n²-5)+1(-n²-5 )

-2n³-10n-n²-5

-2n³-n²-10n-5

n²(-2n-1) +5(2n-1)

(n²+5)(2n-1)

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2x(x³+3)+2(x³+3)

2x⁴ + 2x³ +6x +6

2x³(x+1)+6(x+1)

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2 years ago
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Tju [1.3M]

Answer:

the answer is Z

Step-by-step explanation:

I just looked it up

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