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Ronch [10]
3 years ago
15

find the value of x. Can someone please explain how to find the answer? I'm so confused at the point

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0
Check the picture below

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Find the domain of the function f(x) = – 1x^2 – 2x – 1
navik [9.2K]

Answer:

All real numbers.

Step-by-step explanation:

Since this is a quadratic function, that means the domain is all real numbers.

If you would like more help on math or other subjects for FREE, check out growthinyouth.org.

7 0
3 years ago
What’s the answer???(SOMEONE PLEASE HELP)
Juliette [100K]

Answer:

{xlx > 10}

Step-by-step explanation:

The lowest value of x is about -8, which is greater than negative 10

6 0
3 years ago
What is the coefficient of the second term of the trinomial?
marin [14]
The coefficient of the second term is 18.

What you do is you FOIL the terms:
(3x+3)(3x+3)\\ Multiply\ the\ first\ terms\ together:\\ 3x*3x=9x^{2}\\ Then\ the\ outer\ terms:\\ 3x*3=9x\\ Next,\ the\ inner\ terms:\\ 3x*3=9x\\ Finally,\ multiply\ the\ last\ terms:\\ 3*3=9\\ Putting\ the\ terms\ together:\\ 9x^{2}+9x+9x+9=9x^{2}+18x+9\\\\ Since\ (3x+3)^{2}=9x^{2}+Bx+9=9x^{2}+18x+9,\ then \ B=18.
7 0
3 years ago
Read 2 more answers
The value of the expression -2 xy for x = -4.7 and y = 0.2 is _____.
sergeinik [125]

The value of the expression -2xy for x = -4.7 and y = 0.2 is 1.88. Thus option number 3 is correct.

<u>Solution:</u>

We have been given an expression that is -2xy and have been asked to find its value for the given values of x and y

The given values of x and y are -4.7 and 0.2 respectively.

To find the value of the expression for the given values of x and y we substitute the values of x and y in the given expression and solve it as follows:

Given expression = -2xy

\begin{array}{l}{=-2(-4.7)(0.2)} \\\\ {=9.4 \times 0.2} \\\\ {=1.88}\end{array}

Hence the option number 3 is correct.

4 0
3 years ago
Read 2 more answers
A professor has eight different tasks to assign, one to each of her eight teaching assistants. In how
insens350 [35]

Answer:

40320

Step-by-step explanation:

There are 8 different people we could assign to the first task.  Now there are 7 tasks and 7 people left.  There are 7 different people we could assign to the next task.    And so on

8 *7*6*5*4*3*2*1

8!

40320

8 0
3 years ago
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