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love history [14]
3 years ago
7

Determine if the expression 9x^-2 is a polynomial or not. If it is a polynomial, state

Mathematics
2 answers:
Andrej [43]3 years ago
5 0

Answer:

9x⁻²  is not a polynomial

Step-by-step explanation:

A polynomial function is a function that involves non-negative integer powers of x such as a quadratic, cubic etc.

A polynomial is a function written in the form of ;

f{x} =aₙxⁿ+aₙ₋₁xⁿ⁻¹+-------+a₂x²+a₁x+a₀

The degree of a polynomial is the highest power of x in the expression

9x⁻² ----in this case, the power is negative thus this is not a polynomial.

xeze [42]3 years ago
4 0

Answer:

Not a polynomial

Step-by-step explanation:

 

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<h3>Answer: Choice A)  x+14</h3>

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Work Shown:

(f-g)(x) = f(x) - g(x)

(f-g)(x) = (f(x)) - (g(x))

(f-g)(x) = (3x+10) - (2x-4)

(f-g)(x) = 3x+10 - 2x+4

(f-g)(x) = (3x-2x) + (10+4)

(f-g)(x) = x+14

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Answer: 6x^2y

Step-by-step explanation:

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Solve this application problem using a system of equations: The Springfield Movie Theater sold adult tickets for $4.10 each and
stiv31 [10]

65 adult tickets and 24 children tickets were sold

<u><em>Solution</em></u><u><em>:</em></u>

Let "a" be the number of adult tickets sold

Let "c" be the number of children tickets sold

Cost of 1 adult ticket = $ 4.10

Cost of 1 children ticket = $ 2.70

<em><u>Last Thursday, a total of $331.30 was collected from 89 movie watchers</u></em>

Number of movie watchers = 89

number of adult tickets sold + number of children tickets sold = 89

a + c = 89

c = 89 - a ----------- eqn 1

<em><u>They collected a total of $ 331.30</u></em>

Therefore, we frame a equation as:

number of adult tickets sold x Cost of 1 adult ticket + number of children tickets sold x Cost of 1 children ticket = 331.30

a \times 4.10 + c \times 2.70 = 331.30

4.1a + 2.7c = 331.3 ------ eqn 2

<em><u>Substitute eqn 1 in eqn 2</u></em>

4.1a + 2.7(89 - a) = 331.3

4.1a + 240.3 - 2.7a = 331.3

Combine the like terms

1.4a = 331.3 - 240.3

1.4a = 91

<h3>a = 65</h3>

<em><u>Substitute a = 65 in eqn 1</u></em>

c = 89 - 65

<h3>c = 24</h3>

Thus 65 adult tickets and 24 children tickets were sold

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3 years ago
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inysia [295]

Answer:D

Step-by-step explanation:

It’s asking for it’s opposite

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