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Norma-Jean [14]
4 years ago
5

What are the coefficients of the like terms in this expression? 18x - 9xy + 12x

Mathematics
2 answers:
Ainat [17]4 years ago
8 0

Answer:=30x-9xy


Step-by-step explanation:


likoan [24]4 years ago
6 0
Steps to my answer:

18x-9xy+12x

Add similar elements together,  your answer comes out to be:
=30x-9xy
I hope this is what you were looking for! :) 
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TJ, Max, and Misha are all the same age. The sum of their age is S years. how old was TJ 8 years ago?
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Answer:

s-8

Step-by-step explanation:

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2 years ago
For what values of the variables are the following expressions defined? 1. 5y+2 2. 18/y 3. 1/x+7 4. 2b/10−b Example: X>7
Serga [27]

Answer:

1. All real numbers

2. All real numbers except y = 0

3. All real numbers except x = -7

4. All real numbers except b = 10

Step-by-step explanation:

For any function to be defined at a particular value, it should not be <em>approaching to a value </em>\infty<em> or it should not give us the </em>\frac{0}{0}<em> (zero by zero) form </em> when the input is given to the function.

The value of function will depend on the denominator.

Now, let us consider the given functions one by one:

1. 5y+2

Here denominator is 1. So, it can not attain a value \infty or \frac{0}{0}<em> (zero by zero) form </em>

So, for all real numbers, the function is defined.

2.\ \dfrac{18}{y}

At y = 0, the value

At\ y =0,  \dfrac{18}{y} \rightarrow \infty

So, the given function is <em>defined for all real numbers except y = 0</em>

<em></em>

<em></em>3.\ \dfrac{1}{x+7}<em></em>

Let us consider denominator:

x + 7 can be zero at a value x = -7

At\ x =-7,  \dfrac{1}{x+7} \rightarrow \infty

So, the given function is <em>defined for all real numbers except x = -7</em>

<em></em>

4.\ \dfrac{2b}{10-b}

Let us consider denominator:

10-b can be zero at a value b = 10

At\ b =10,  \dfrac{2b}{10-b} \rightarrow \infty

So, the given function is <em>defined for all real numbers except b = 10</em>

<em></em>

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3 years ago
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If a circle has center (a,b) and radius r, the equation is

(x-a)^2+(y-b)^2=r^2

So, you have

(x+3)^2+(y-1)^2=81

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3 years ago
Can an Isosceles be a(n)<br> A.Equilateral<br> B.Scalene<br> C.Right
gizmo_the_mogwai [7]
An Isosceles can be scalene or right depending on it shape and size
7 0
3 years ago
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Do 100 divided by 7 to find how many tomatoes per people. After that, use 100/7 times 5 which is 500/7 to know how much she needs for ten people. Ans: 500/7

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3 years ago
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