40 points to whoever can answer for me!

Mathematics

2 answers:

luda_lava [24]3 years ago

8 0

Answer:

x≤-3 2 ≤x<7

Step-by-step explanation:

(x^2+x-6) /(x-7) ≤0

Factor the numerator

(x+3)(x-2) / (x-7)≤0

Critical points are

X =-3 X =2 X=7

We need to check the values when

x≤3 -3 ≤ x≤2 2 ≤x<7 x>7

(x cannot be 7 because then the denominator is zero)

and see when it is less than 0

Substitute a value in and see if factor is positive or negative

x≤-3

(negative)(negative) / (negative) = negative

-3 ≤x≤2

(positive)(negative) / (negative) = positive this range does not work

2 ≤x<7

(positive)(positive) / (negative) = negative

x>7

(positive)(positive) / (positive)

stepan [7]3 years ago

7 0

Answer:

The second option is the correct answer.

Thank you.

I've answered as fast as I can to answer your question.Hope you understood it.

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Suppose that the local sales tax rate is 6.25% and you purchased a used car for $16,800. How much tax is paid?

laiz [17]

$\bf \begin{array}{|c|ll}
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\textit{a\% of b}\\
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\\
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3 years ago

I WILL GIVE A FREAKING BRAINLIEST!!!!!!!!!!!

UkoKoshka [18]

Answer:

0.5 < t < 2

Step-by-step explanation:

The function reaches its maximum height at ...

t = -b/(2a) = -16/(2(-16)) = 1/2 . . . . . . where a=-16, b=16, c=32 are the coefficients of f(t)

The function can be factored to find the zeros.

f(t) = -16(t^2 -1 -2) = -16(t -2)(t +1)

The factors are zero for ...

x = -1 and x = +2

The ball is falling from its maximum height during the period (0.5, 2), so that is a reasonable domain if you're only interested in the period when the ball is falling.