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
ELEN [110]
2 years ago
10

Given an=n^3-2n what is a3 please don't attach file!!!!

Mathematics
1 answer:
sineoko [7]2 years ago
5 0

Answer:

21

Step-by-step explanation:

Try using this notation:  a(n)     and not    an.

an=n^3-2n becomes    a(n) = n^3 - 2n.

Then a(1) = 1^3 - 2(1) = 1 - 2 = -1

         a(2) = 2^3 - 2(2) = 8 - 4 = 4

         a(3) = 3^3 - 2(3) = 27 - 6 = 21

You might be interested in
The graph of an inequality has an open circle at 3.9, and the ray moves to the right. What inequality is graphed?
S_A_V [24]
The answer would be x> 3.9
8 0
3 years ago
Does this question have any correct answer? I can't see how any of the answer choices are correct.
juin [17]

Answer:

the only one that would make sense is D because it says 1 pair of parallel and the left one only has one pair

Step-by-step explanation:

(you might want to ask your teacher though because its kind of misleading)

4 0
3 years ago
Solve the following system of equations. What is the y value of the solution?
Svet_ta [14]

Answer:

y = 2

Step-by-step explanation:

x + 5y - 10 = 0

X = 4y - 8

since x is given as = 4y - 8 we can use this in first equation

replace x with 4y - 8

x + 5y - 10 = 0 ➡ 4y - 8 + 5y - 10 = 0 add like terms

9y - 18 = 0 add 18 to both sides of the equation

9y = 18 divide both sides by 9

y = 2

6 0
3 years ago
Read 2 more answers
Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). The actual blood pressure values for nine
Paladinen [302]

Answer:

a) 117.4

b) 117.9

c) Option A)  When there is rounding or grouping, the median can be highly sensitive to small change

Step-by-step explanation:

We are given the following data set in the question:

108.6, 117.4, 128.4, 120.0, 103.7, 112.0, 98.3, 121.5, 123.2

Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}

n = 9

a) Median of the reported blood pressure values

Sorted Values: 98.3, 103.7, 108.6, 112.0, 117.4, 120.0, 121.5, 123.2, 128.4

Median =

\dfrac{9 + 1}{2}^{th}\text{ term} = 5^{th}\text{ term} = 117.4

b) New median of the reported values

Data: 108.6, 117.9, 128.4, 120.0, 103.7, 112.0, 98.3, 121.5, 123.2

Sorted Values: 98.3, 103.7, 108.6, 112.0, 117.9, 120.0, 121.5, 123.2, 128.4

New Median =

\dfrac{9 + 1}{2}^{th}\text{ term} = 5^{th}\text{ term} = 117.9

c) Since median is a position based descriptive statistics, a small change in values can bring a change in the median value as the order of the data may change.

Option A)  When there is rounding or grouping, the median can be highly sensitive to small change

7 0
3 years ago
D
Leviafan [203]
All you gotta do is do 11.00 decided by .44 and it’s 25
8 0
2 years ago
Other questions:
  • *will give brainliest*
    5·2 answers
  • An electronic store makes a profit of $15 for every fitness tracker sold. The store wants to find how many fitness trackers they
    13·1 answer
  • Tom makes 8 loaves of blueberry bread.He uses 1/2 cup of blueberries in each loaf. How many cups of blueberries dose he use for
    10·1 answer
  • Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.
    13·2 answers
  • Jill entered y=2*5^(x−4)y=2*5^(x−4) into an online graphing tool. What function did she graph? y=2(5)x−4y=2(5)x−4y=(2⋅5)x−4y=(2⋅
    8·1 answer
  • Help me!!!!!pleaseeeee
    5·2 answers
  • Comparing Ratios: What is the relationship between the number of stitches and the length?
    7·2 answers
  • The average of 8 scores is Q. If the average of 3 of the scores is Z, what is the average of the other 5 scores?
    12·1 answer
  • Jose's ball is stuck on the roof of his home, which is 8 feet high. He wants to use a ladder to climb up and get his ball. If he
    13·1 answer
  • 50 pts
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!