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3 years ago

Select the interval where h(x)<0 A. -3.5 B. -2 C. 2.5

Mathematics

1 answer:

Mandarinka [93]3 years ago

7 0

Answer:

Step-by-step explanation:

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Find all the zeros of 2x4+x3-14x2-19x-6 two of its zeros are -2 and -1

GalinKa [24]

Answer:

$-2,\ -1,\ -\dfrac{1}{2},\ 3.$

Step-by-step explanation:

Consider polynomial $2x^4+x^3-14x^2-19x-6.$

If x=-2 is its zero, then you can divide the polynomial $2x^4+x^3-14x^2-19x-6$ by $x+2$ and get

$2x^4+x^3-14x^2-19x-6=(x+2)(2x^3-3x^2-8x-3).$

If x=-1, then the polynomial $2x^4+x^3-14x^2-19x-6$ can be rewritten as

$2x^4+x^3-14x^2-19x-6=(x+2)(x+1)(2x^2-5x-3).$

The quadratic polynomial has roots

$x_{1,2}=\dfrac{-(-5)\pm\sqrt{(-5)^2-4\cdot2\cdot(-3)}}{2\cdot 2}=\dfrac{5\pm \sqrt{25+24}}{4}=\dfrac{5\pm \sqrt{49}}{4}=3,-\dfrac{1}{2}.$

Then the polynomial $2x^4+x^3-14x^2-19x-6$ has zeros $-2,\ -1,\ -\dfrac{1}{2},\ 3.$

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3 years ago

A manufacturing unit currently operates at 80 percent of its capacity. The profit function for the unit at the optimum output, x

Ad libitum [116K]

B.
I hope I helped!!!!!!!!!

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4 years ago

Read 2 more answers

What is the slope of the line given by the equation y = -5x? Enter your answer as an integer or fraction in lowest terms. BTW ca

faust18 [17]

Answer:

slope = - 5

Step-by-step explanation:

given the equation of a line in the form

y = mx ← m is the slope

y = - 5x is in this form with slope m = - 5

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3 years ago

Mike has an adjusted gross income of $85,643. He claims two exemptions and can deduct $896 for state income tax, $2,145 for char

damaskus [11]

The gross income is $85,463
Here are the deduction before tax is applied:
$896 - income
$2,145 - charitable donations
$3,473 - medical expenses
2 x $3,650 - exemptions

Adding all the deductions:
$896 + $2,145 + $3,473 + 2 x $3,650 = $13,814

Subtracting this from the gross income:
$85,463 - $13,814 = $66,129

3 0

4 years ago

Read 2 more answers

A)y=3x b)2x+2 Answer choices

tino4ka555 [31]

y=2x+2 is the correct answer.

Hope it helps...

Regards,

Leukonov/Olegion.

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3 years ago