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
Temka [501]
2 years ago
8

What is the nth term for the quadratic sequence 4,9,16,25,36

Mathematics
1 answer:
scoundrel [369]2 years ago
8 0

Answer:

5n-1

Step-by-step explanation:

Find the difference between each number:

9-4=5

That is your n

Using that number you found that is your difference, subtract that from your first number

4-5=-1

that is the second part of your answer:

5n-1

You might be interested in
Which of the following equations represents direct variation?
liberstina [14]

2=6-3 is the direct variation

4 0
2 years ago
A standard deck of cards contains 52 cards. One card is selected from the deck.​(a)Compute the probability of randomly selecting
Aneli [31]

a. There are four 5s that can be drawn, and \binom43=4 ways of drawing any three of them. There are \binom{52}3=22,100 ways of drawing any three cards from the deck. So the probability of drawing three 5s is

\dfrac{\binom43}{\binom{52}3}=\dfrac4{22,100}=\dfrac1{5525}\approx0.00018

In case you're asked about the probability of drawing a 3 or a 5 (and NOT three 5s), then there are 8 possible cards (four each of 3 and 5) that interest you, with a probability of \frac8{52}=\frac2{13}\approx0.15 of getting drawn.

b. Similar to the second case considered in part (a), there are now 12 cards of interest with a probability \frac{12}{52}=\frac3{13}\approx0.23 of being drawn.

c. There are four 6s in the deck, and thirteen diamonds, one of which is a 6. That makes 4 + 13 - 1 = 16 cards of interest (subtract 1 because the 6 of diamonds is being double counted by the 4 and 13), hence a probability of \frac{16}{52}=\frac4{13}\approx0.31.

- - -

Note: \binom nk is the binomial coefficient,

\dbinom nk=\dfrac{n!}{k!(n-k)!}={}_nC_k=C(n,k)=n\text{ choose }k

6 0
3 years ago
If A and B are independent events, P(A and B) =​
Sergio039 [100]

Answer:

<u>If A and B are independent events, P(A and B) =​ P (A) * P (B)</u>

Step-by-step explanation:

Let's recall that independent events means that when one event occurs, it has no impact or influence on the probability of another event occurring. Here’s an example. Let’s say that we have two events, A and B.  

Event A : it rains in Seattle

Event B : the Super Bowl match is cancelled in Miami

The two events are independent; if it rains in Seattle, this will have no impact on the probability that the Super Bowl match is cancelled in Miami. Raining in Seattle and the cancellation of the Super Bowl are independent events, therefore:

<u>P(A and B) =​ P (A) * P (B)</u>

4 0
3 years ago
Which are the roots of the quadratic function f(q) = q2 – 125? Check all that apply.
s344n2d4d5 [400]
F(q)=0
so, q^2 - 125 = 0
(q)^2 - (5)^2 = 0
(q+5) (q-5) = 0
q = 5, -5
7 0
2 years ago
Read 2 more answers
The inventory of a store 2 years ago was worth $45,000. This year it is worth $49,500. What is the percent increase?
UkoKoshka [18]
It is 0.4500% hope this helps
7 0
3 years ago
Other questions:
  • A clockwise rotation of 180 is the same as a counterclockwise rotation of
    5·1 answer
  • Raheem bought 3 pounds of bananas about how many kilograms did he buy??
    7·1 answer
  • I really need help <br> ;-;
    7·1 answer
  • Adair needs $21,150 to purchase a boat. How much money will you need to invest today in a savings account earning 3.2% interest,
    9·1 answer
  • U.S. Postal Service regulations state that a package can be mailed using Parcel Post rates if it weighs no more than 80 pounds.
    14·1 answer
  • Select the correct answer.
    14·1 answer
  • ABCD~EFGH
    8·1 answer
  • A. 3<br> B. 1/3<br> C. -3<br> D. -1/3
    15·1 answer
  • Need help asap<br> Will mark you brainlist
    9·1 answer
  • The dimensions of a rectangular prism are shown below: Length 2 1/4 ft | width 1 ft | height 1 1/4 ft.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!