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
If Karri takes a 7 question true false test and guess on every question, what is the
dusya [7]

Answer:

The  probability that she gets all 7 questions correct is 0.0078.

Step-by-step explanation:

We are given that Karri takes a 7 question true-false test and guess on every question.

The above situation can be represented through binomial distribution;

P(X = r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,........        

where, n = number of samples (trials) taken = 7 question

            r = number of success = all 7 questions correct

            p = probability of success which in our question is probability that

                   question is correct, i.e. p = 50%

Let X = <u><em>Number of question that are correct</em></u>

So, X ~ Binom(n = 7, p = 0.50)

Now, the  probability that she gets all 7 questions correct is given by = P(X = 7)

         P(X = 7)  =  \binom{7}{7} \times 0.50^{7} \times (1-0.50)^{7-7}

                        =  1 \times 0.50^{7} \times 0.50^{0}

                        =  <u>0.0078</u>

6 0
3 years ago
Continue the following pattern; describe the eighth figure in this pattern
Bumek [7]
The correct answer would be C. Hope that helps.
5 0
3 years ago
Read 2 more answers
If f(x) = 2x + 6 and g(x) = -4x - 8 find f(g(x)) = ?x+?
amm1812

hope it helps

plz mark brainliest

6 0
3 years ago
9/4 is between what two numbers
Debora [2.8K]
9/4 is between 2 and 3
3 0
3 years ago
Arrange the steps to solve this system of linear equations in the correct sequence x+y=-2 2x-3y=-9
balu736 [363]

there you go the correct ans

5 0
3 years ago
Other questions:
  • "Please help me, as quick as you can'
    6·2 answers
  • In the point(5-3) the value of the x coordinate is
    6·1 answer
  • 3b=4a. 2c=5c.<br> find a:b:c
    15·1 answer
  • Solve the inequality algebraically. Graph the solution.
    10·1 answer
  • Write and solve an equation to find the number<br><br> six times the sum of a number and 15 is -42
    8·1 answer
  • According to Masterfoods, the company that manufactures M&amp;M’s, 12% of peanut M&amp;M’s are brown, 15% are yellow, 12% are re
    8·1 answer
  • How do u change inches into feet
    15·2 answers
  • What are the zeros of the quadratic function shown on the graph?
    7·2 answers
  • What is the equation for the line in slope intercept form
    5·2 answers
  • HELP ME OUT PLEASE
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!