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2 years ago

Which expression is a polynomial

Mathematics

1 answer:

patriot [66]2 years ago

8 0

Answer:

$4x^3-2x^2+5x-6+\frac{1}{x}$ is a polynomial

Step-by-step explanation:

a polynomial is a set of numbers with multiple terms that are not simplify able

$9x^7y^{-3} z$ is not a polynomial because its actually one term, there is no addition/subtraction of different terms.

-13 is a single number, so not a polynomial

13x^-2 is also a single number, not a polynomial

You might be interested in

I need help in the last one, i don understand it

Alex787 [66]

Answer:

84 = 7×12

84 = 3×4×7

84 = 2×2×3×7

Step-by-step explanation:

84 = 7 × 12 ( the factors of 12 are 3×4)

so 84 = 3×4×7 ( the factors of 4 are 2×2)

so 84 = 2x2x3x7

I hope it helps you!

4 0

1 year ago

The measure of the exterior angle of the triangle is what degree?

RSB [31]

Answer:

92°

Step-by-step explanation:

By exterior angle theorem:

$(2x - 2) \degree = x \degree + 45 \degree \\ \\ (2x - 2 - x) \degree = 45 \degree \\ \\ (x - 2) \degree = 45 \degree \\ \\ (x - 2) = 45 \\ \\ x = 45 + 2 \\ \\ x = 47 \\ \\ (2x - 2) \degree = (2 \times 47 - 2)\degree \\ \\ (2x - 2) \degree = (94 - 2)\degree \\ \\ (2x - 2) \degree = 92\degree \\ \\ measure \: of \: the \: exterior \: angle \\ = 92 \degree$

4 0

3 years ago

Write the sentence as an equation. t equals 137 minus w

loris [4]

Answer:

t = 137-w

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

The qualitative counterpart of validity and reliability in quantitative research, which includes credibility, transferability, a

serious [3.7K]

Answer:

Trustworthiness

Step-by-step explanation:

For qualitative researchers, we have

1. Credibility

2. Transferability

3. Dependability

4. Confirmability and

5. Trustworthiness

While for quantitative researchers, we have

1. Internal validity

2. External validity

3. Reliability

4. Objectivity.

Trustworthiness is the qualitative research counterpart of validity and reliability.

4 0

3 years ago

You decide to buy some berries as a surprise for your aunt from the local farmer’s market. However, when you arrive, you see tha

Amanda [17]

Blackberries 1
blueberries 2
rasberries 3
strawberries 4
if you have to choose 1 of the 4 then your fraction is
(1/4)
1/4 = 25%
so the probability of you choosing the right one is 25%
i hope this is easy to understand and helps a lot

4 0

2 years ago