4 years ago

What is the range of the given function?

Mathematics

1 answer:

topjm [15]4 years ago

6 0

Answer:

-7,-5,-1,0,1,4,6,9

Step-by-step explanation:

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Given the function f(x) = x2 and k = –1, which of the following represents a function opening downward?

WITCHER [35]

f(x) = ax2+bx+c, is quadratic equation
function opening downward if the a<0,
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Anastaziya [24]

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3 years ago

Solve 1.)solve 15 > - 2x -9 2.) solve 3x + 8 < 29

kipiarov [429]

1)
15 > -2x-9
15+9 > -2x
24÷(-2) < x (the sign flips because you divide both sides by a negative number)
Hence, x > -12

2)
3x + 8 < 29
3x < 29-8
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3 years ago

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What is -36 take away 8

kobusy [5.1K]

Answer:

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3 years ago

The values in a dataset are 3.5, 2.5, 2.5, 3.5, and 3.0. If Xbar (sample mean) = sigma X / n, what is the mean for the sample?

RideAnS [48]

Answer:

$\bar x = 3.0$

Step-by-step explanation:

Given

$x: 3.5, 2.5, 2.5, 3.5, 3.0$

Required

The sample mean

This is calculated using:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{3.5+ 2.5+ 2.5+ 3.5+ 3.0}{5}$

$\bar x = \frac{15.0}{5}$

$\bar x = 3.0$

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3 years ago