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3 years ago

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Mathematics

1 answer:

frozen [14]3 years ago

6 0

Answer:

What???

Step-by-step explanation:

Cant see it?????

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Which number is rational?

NISA [10]

The correct answer is the last choice

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4 years ago

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For the function F(x) = 2x^2-31x-51, where is the function increasing and positive? ( for all X values greater than what number

Ulleksa [173]

ANSWER
$x \: > \: 17$

EXPLANATION

The given function is

$f(x) = 2 {x}^{2} - 31x - 51$
Let us split the middle term to get,

$f(x) = 2 {x}^{2} -34x + 3x- 51$

We factor to obtain,

$f(x) = 2x(x - 17) -+3(x - 17)$

$f(x) = (2x -+3)(x -17)$

Let us find the zeros of f(x),

$(2x +3)(x - 17) = 0$

Either

$2x +3 = 0 \: or \: x - 17 = 0$
$x = -\frac{3}{2} \: or \: x = 17$

We need to find the x-value of the vertex, which is the midpoint of the x-intercepts.

This gives us,

$\frac{- \frac{3}{2} + 17}{2} = 7.75$
Hence the axis of symmetry of the parabola has equation,

$x = 7.75$

Since the given function has minimum turning point, it will decrease and then increase.

The function will be increasing for
$x \: > \: 7.75$

The function will be increasing and positive for
$x \: > \: 17$

7 0

3 years ago

HELP ASAP PLEASEEEE WILL GIVE BRAINLIEST!

lys-0071 [83]

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ab i think that is the answer <span />

4 0

4 years ago

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In science class, the average score on a lab report is 82 points, with all students scoring within 3.2 points of the average. if

gregori [183]

The absolute value equation that represents the minimum and maximum scores is:

|x - 82| = 3.2.

<h3>What is the absolute value function?</h3>

The absolute value function is defined by:

f(x) = x, x ≥ 0.

f(x) = x, x < 0.

It measures the distance of a point x to the origin.

For this problem, the distance between the minimum and the maximum scores and the mean is of 3.2, that is, the difference between these scores x and the mean of 82 is of 3.2, hence the absolute value equation that represents this situation is given by:

|x - 82| = 3.2.

More can be learned about absolute value equations at brainly.com/question/24514895

#SPJ1

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2 years ago

Marty ordered three extremely accurate and scientific water-balloon launchers from a mail order catalog (one for himself and two

frutty [35]

3 launchers + shipping = $50
shipping = $5
so to find the price of just the launchers we do $50-$5=$45
so 3 ballons = $45
divide be 3 to find the price of one launcher $50 / 3 = $15

6 0

4 years ago