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2 years ago

3 Select the correct answer. Which measure of center is the most appropriate for this data set? 20, 6, 42, 13, 15, 10, 9, 12, 12

Mathematics

1 answer:

Ainat [17]2 years ago

3 0

Answer:

B median

Step-by-step explanation:

The median is the center of any data set

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vovikov84 [41]

Ask me your other questions.i hope it was helpful

6 0

3 years ago

May someone help me with this, it's fairly easy.

Likurg_2 [28]

Answer:

A and B are correct

Step-by-step explanation:

Student C is wrong because they broke up 3/4 into

2/2 + 1/2

but 2/2 + 1/2 = 3/2, which is not equal to 3/4

7 0

2 years ago

What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?

tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

$y=x^{2}-8x+15$

we know that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$x^{2}-8x+15=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-8x+15=0$

$a=1\\b=-8\\c=15$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}$

$x=\frac{8\pm\sqrt{4}} {2}$

$x=\frac{8\pm2} {2}$

$x=\frac{8+2} {2}=5$

$x=\frac{8-2} {2}=3$

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0

2 years ago

Please please please help look at the picture

olchik [2.2K]

Answer:

132

Step-by-step explanation:

4 0

2 years ago

What is the value of f(4) in f(x)=3x-6

vodka [1.7K]

F(4) value is 6.
I believe it would work like this:
f(x) is being turned into f(4), so 4 would equal x. Put 4 into the equation 3x-6, and you get 12-6, which gives you 6. So the value of f(4) is 6. I hope this helps!

3 0

2 years ago