3 years ago

What is the sum of the polynomials?

Mathematics

1 answer:

vivado [14]3 years ago

4 0

The answer is 3x^2 + 6x + 4 (the second one)

Let's start by removing the parenthesis to get 6x + 7 + x^2 + 2x^2 - 3

Then, let's combine like terms (terms with the same variable and exponent) to get 3x^2 + 6x + 4

This is an answer in the multiple choice, so the answer is 3x^2 + 6x + 4 (the second one)

You might be interested in

Evaluate this expression if r = 2, t = -7, and u = -5<br> 3(r+u)

andreev551 [17]

Answer:

the answer is -9

Step-by-step explanation:

3(2 - 5)

6 - 15

-9

4 0

2 years ago

Read 2 more answers

the length of a box of colored pencils is 6 inches, the width is 4 inches, and the height is 3/8 inch. what is the volume of the

HACTEHA [7]

Answer:

9cm3

Step-by-step explanation:

6 x 4 x 3/8=9cm3

3 0

3 years ago

Read 2 more answers

¿que tipo de par ordenado es Veracruz-jalapa?

ELEN [110]

Answer:

i dont speak spanish sry

Step-by-step explanation:

but if you put it in english i would help

6 0

3 years ago

The children in my subdivision were bored one summer and decided to hold a competition to see who could run to the end of the st

Ainat [17]

Answer:

6.7% of children who finished the race in under 45 seconds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 75 seconds

Standard Deviation, σ = 20 seconds

We are given that the distribution of time of completion is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(finished the race in under 45 seconds.)

P(x < 45)

$P( x < 45) = P( z < \displaystyle\frac{45 - 75}{20}) = P(z < -1.5)$

Calculation the value from standard normal z table, we have,

$P(x < 45) = 0.067 = 6.7\%$

6.7% of children who finished the race in under 45 seconds.

4 0

3 years ago

Which is NOT a polynomial?

fomenos

The first is not a polynomial as one term is dividing.

3 0

3 years ago