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3 years ago

How do you calculate median

1 answer:

6 0

Put all numbers in smallest to largest order
if there are an odd number of results, the median is in the middle
if there even, then its the mean of the two central numbers

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Find the zeros of the function y=x^2-4x-16 by completing the square. Express your answer in simple redical form. Graph the parab

densk [106]

Answer:

The zeros of the function are

$x=2+2\sqrt{5}$

$x=2-2\sqrt{5}$

The graph in the attached figure

Step-by-step explanation:

we have

$y=x^{2}-4x-16$

This is a vertical parabola open upward (the leading coefficient is positive)

The vertex is a minimum

Remember that

The zeros of the function are the values of x when the value of y is equal to zero

For y=0

$x^{2}-4x-16=0$

Move the constant term to the right side

$x^{2}-4x=16$

Complete the square

$x^{2}-4x+2^2=16+2^2$

$x^{2}-4x+4=20$

Rewrite as perfect squares

$(x-2)^{2}=20$ ---> the vertex is the point (2,-20)

take square root both sides

$x-2=\pm\sqrt{20}$

$x=2\pm\sqrt{20}$

Simplify

$x=2\pm2\sqrt{5}$

The zeros of the function are

$x=2+2\sqrt{5}$

$x=2-2\sqrt{5}$

using a graphing tool

The graph in the attached figure

8 0

4 years ago

What is the volume of the figure?

PilotLPTM [1.2K]

Answer:

47.12

Step-by-step explanation:

same as the last question

4 0

2 years ago

A rectangular prism with a volume of

garri49 [273]

Answer:

idk

Step-by-step explanation:

can sum1 tell me

8 0

3 years ago

Select all the values of x so g(x) is not a function.

alexdok [17]

The answer is 6 and 9
Step-by-step explanation: We are trying to figure out what makes the chart not a function. A function is is one input equals one output.
so all you have to do is look at the x and look at the number that is already there and just make it repeat.

3 0

3 years ago

Do you know the answer

aivan3 [116]

Answer:

84.3

Step-by-step explanation:

use this equation

3 0

3 years ago