1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
muminat
3 years ago
9

Find the sum and choose the correct answer.

Mathematics
2 answers:
Alborosie3 years ago
5 0
B, n to the 3rd power + 4n to the 2nd power +8n -16
Alborosie3 years ago
5 0

Answer:

Option B (n³ + 4n² + 8n - 16)

Step-by-step explanation:

In this question we have to add two expressions given

( 2n³ + 4n² - 7 ) and ( -n³ + 8n - 9 )

( 2n³ + 4n² - 7 ) + ( -n³ + 8n - 9 )

Now we group the similar terms

( 2n³ - n³ ) + 4n² - ( 7 + 9 ) 8n

= n³ + 4n² - 16 + 8n

= n³ + 4n² + 8n - 16

Option B (n³ + 4n² + 8n - 16) is the correct answer.

You might be interested in
Plz find the slope plzzzz
e-lub [12.9K]

Answer:

The slope would be rise over run so you go from point A and rise 4 then go over 8

So 4/8, then to simplify this it would be 1/2, so your slope is 1/2

Step-by-step explanation:

3 0
3 years ago
Can u help<br> me im in 6th grade and bad at math
AfilCa [17]

Step-by-step explanation:

I can help you im in 7th grade and im good with math.

5 0
3 years ago
Read 2 more answers
Una ciudad tenía 8000 habitantes a final del año 2000. Cada año su población se incrementa en un 0.5 %
Digiron [165]

Answer:

The correct answer is 2030.

Step-by-step explanation:

To start we must analyze the information we have.

We know that a city has 8000 inhabitants and that each year this number increases by 0.5%. That means that <u>each year it has 40 more inhabitants</u>:

(8000 . 0,5) : 100 = 40

Having this information we could do a cross multiplication:

1 year ------- 40 inhabitants

x years ------- 81200

81200 = 40.x

x = 81200 : 40

x = 2030

In this way we can verify that the correct answer is 2030.

4 0
3 years ago
Simon bought 5 boxes of cereal c and 2 gallons of nonfat milk m for $20.08. Terri bought 3 of the same boxes of cereal b and 3 g
Effectus [21]

Answer:

2.50$

Step-by-step explanation:

8 0
3 years ago
en un colegio mixto hay x estudiantes distribuidos en c cursos. Si hay m niños por curso, ¿Cuantas niñas hay en el colegio?
Tomtit [17]

La ecuación que nos dice cuantas niñas hay en el colegio es:

A = x - c*m

¿Como encontrar una expresión para la cantidad de niñas?

Sabemos que hay un total de x estudiantes, definimos las variables:

  • A = cantidad total de niñas
  • B = cantidad total de niños.

Entonces tenemos A + B = x

Tambien sabemos que los estudiantes estan divididos en c cursos, de tal forma que hay m niños por curso.

Entonces c por m es igual a la cantidad total de niños:

c*m = B

Reemplazando esto en la ecuación de arriba podemos obtener:

A + c*m = x

A = x - c*m

Esta es la ecuación que nos da el numero total de niñas en el colegio.

Sí quieres aprender más sobre ecuaciones, puedes leer:

brainly.com/question/18168483

4 0
2 years ago
Other questions:
  • Rewrite the function by completing the square.<br> f(x) = x2 – 10x + 44<br> +<br> f(x) = (x+
    6·1 answer
  • Identify the sentence in which the underlined pronoun is used incorrectly.
    9·1 answer
  • Which statement be describes the rotation ?
    6·2 answers
  • A Demolition ball weigths 2 tons . what is the weigtht in ounces?also what is a demolition ball?
    12·1 answer
  • Laplace Transform of t ^{2}sin(2t)? ...?
    11·1 answer
  • Kareem is participating in a 5-day cross-country biking challenge. He biked for 67, 62, 59, and 47 miles on the first four days.
    8·1 answer
  • The number of new customers n that visit a dry cleaning shop in one year is directly related to the
    5·1 answer
  • I need help..........................................
    11·2 answers
  • How to work rates and proportions
    7·1 answer
  • It is how is 100+100
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!