How do you find the answer to this?

Mathematics

1 answer:

Stels [109]3 years ago

3 0

Answer:

D) {-1}

Step-by-step explanation:

A rational expression is "not defined" when its denominator is zero. Hence to find values of x that make the expression "not defined," you solve the equation ...

denominator = 0

2x +2 = 0 . . . . . . put the actual denominator into the equation

x + 1 = 0 . . . . . divide by 2

x = -1 . . . . . . . . subtract 1

The expression is "not defined" for x in the set {-1}.

You might be interested in

I need to know this aspa idk how to do this

Gnoma [55]

Answer:

the answer is 1 1/3

Step-by-step explanation:

PQ is the same length as QR

therefore you would set the equations equal to each other

10x+10= 7x+14

-7x -7x

3x+10=14

-10 -10

3x= 4

/3 /3

x=1 1/3

4 0

3 years ago

What is the mean of this data set? {14, 7, 2, 8, 3} Enter your answer as a decimal in the box.

Assoli18 [71]

The mean of the data set is 6.8.

Mean is the average value of the given set of observations. In statistics, we also come across different types of mean such as Arithmetic, Geometric and Harmonic mean.

Given

The data set is 14, 7, 2, 8, 3.

The mean of the data set is given by;

$\rm Mean = \dfrac{Sum \ of \ all \ data}{Number \ of \ data}\\\\Mean =\dfrac{14+7+2+8+3}{5}\\\\Mean = \dfrac{34}{5}\\\\Mean=6.8$