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irakobra [83]
3 years ago
14

Which expression is a trinomial of degree 1? A. x^3+x^2-x B. xy^2 C. 6+x-y D. 3x-y

Mathematics
2 answers:
ki77a [65]3 years ago
7 0
C

Trinomial means three parts
A and C or trinomial's but the degree on a is at three and the degree of C is a one
GrogVix [38]3 years ago
3 0

Answer:  The expression is (C). 6 + x - y.

Step-by-step explanation:  We are given to select the expression that is a trinomial of degree 1.

<u>A TRINOMIAL OF DEGREE 1 :</u> It is an algebraic expression with three terms, where the maximum degree of unknown variables in the terms is 1.

(A) The first expression is x^3+x^2-x.

Here, we have three terms, so it is a trinomial and the highest power of the unknown variable is 3, not 1. Hence, it is a trinomial of degree 3.

So, option (A) is incorrect.

(B) The second expression is xy^2.

Here, we have only one term, so it is a monomial and the highest power of the unknown variables is 1 + 2 = 3, not 1. Hence, it is a monomial of degree 3.

So, option (B) is incorrect.

(C) The third expression is 6+x-y.

Here, we have three terms, so it is a trinomial and the highest power of the unknown variable is 1. Hence, it is a trinomial of degree 1.

So, option (C) is incorrect.

(D) The fourth expression is 3x-y.

Here, we have two terms, so it is a binomial and the highest power of the unknown variables is 1. Hence, it is a binomial of degree 1.

So, option (D) is incorrect.

Thus, option (C) is correct.

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Answer:

see explanation

Step-by-step explanation:

The exponents can only be added if the bases are the same

Here one base is 12 and the other is 11

So the rule of addition is not applicable.

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Given the function graphed below, what is the average rate of change between f(3) and f(7)?
Shkiper50 [21]
Answer: choice D) 20

-------------------------------

Explanation:

Locate 3 on the x axis number line. Draw a vertical line through 3 and this vertical line will cross the parabola at some point P. Mark this point P on the parabola. Then draw a horizontal line from P to the y axis. The horizontal line will land on y = 10. In short, this all shows us that (3,10) is a point on this parabola.

Repeat those steps above, but now for x = 7. You'll see that (7,90) is another point on this parabola.

We need to find the slope of the line through the two points (3,10) and (7,90). The average rate of change from x = 3 to x = 7 is the same as the slope of the line through those two points.

To find the slope, we use the slope formula
m = (y2 - y1)/(x2 - x1)
where (x1,y1) and (x2,y2) are the two points, and m is the slope

In this case,
(x1,y1) = (3,10) and (x2,y2) = (7,90)
further breaking down to
x1=3
y1=10
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So we'll plug those four pieces of info into the equation and simplifying to get...
m = (y2 - y1)/(x2 - x1)
m = (90 - 10)/(7 - 3)
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The slope of the line is 20, so therefore, the average rate of change is 20.

6 0
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Answer:

C) Rolling an even number is female and an odd number is male.

Step-by-step explanation:

because it would be an even chance for each sex (Male and female)

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7 0
3 years ago
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The slope of the line passes through the points (3,-6) and (7,y) is -2/3. Find y.
kirza4 [7]
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-6-y / -4 = -2/3

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3(-6-y) = 8

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y = -8 2/3


5 0
3 years ago
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