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
Brut [27]
3 years ago
11

Find the sum of nth term of the series 5+7+13+31... .​

Mathematics
2 answers:
Rom4ik [11]3 years ago
4 0
The sequence increases in increments of the sum of the term before and the increment for the term before to the current term. For example, 7+5 is 13 and 13+5 is 18 hence the next term is 13+18 is 31. The next term is thus 80. It’s easier to understand if you draw out the term and the number it increases by
Paha777 [63]3 years ago
4 0

Answer:

2n+3

Step-by-step explanation:

formula=nd+t1-d

n is the term , t1 is term one and d is diffrence between the first two terms

2n+5-2

=2n+3

You might be interested in
An experienced cashier at a grocery store takes 2 seconds to scan each item and 40 seconds to process the customer's payment. 1)
grigory [225]

Answer:

The correct option is D) 43 items.

Step-by-step explanation:

As we know that total given time is ,

Y = (60\times2) +6 =126\hspace{0.15cm} sec,

Out of which cashier spends 40 seconds to process the customer's payment.

So the remaining time = (126 - 40) = 86 secs.

And the remaining time is used to scan the item and so that we can calculate here the no items scan is = (86 ÷ 2) = 43.

Therefore we can say that 43 items are being purchased.

6 0
3 years ago
Need help please !!!
irina1246 [14]

sin^2 x + 4 sinx +3       3 + sinx

--------------------------  =  -------------------

cos^2 x                        1 - sinx


factor the numerator


(sinx +3) (sinx+1)       3 + sinx

--------------------------  =  -------------------

cos^2 x                        1 - sinx


cos^2 = 1-sin^2x

(sinx +3) (sinx+1)       3 + sinx

--------------------------  =  -------------------

1- sin^2x                       1 - sinx

factor the denominator

(sinx +3) (sinx+1)       3 + sinx

--------------------------  =  -------------------

(1-sinx ) (1+sinx)                   1 - sinx

cancel the common term (1+sinx)  and (sinx +1)

(sinx +3)                       3 + sinx

--------------------------  =  -------------------

(1-sinx )                           1 - sinx


reorder the first term

3+sinx                           3 + sinx

--------------------------  =  -------------------

(1-sinx )                           1 - sinx

3 0
3 years ago
A crew is painting the stripes for a new parking lot. Each of the lines that show the side of a parking space is parallel to the
sleet_krkn [62]
D
D is the answer
Hhehehe
4 0
3 years ago
Read 2 more answers
The figures are similar. Find the area.
Crazy boy [7]

Answer:

108 in

Step-by-step explanation:

The figures are similar, so if we find a relation of the area and the diagonal in rectangle 1  we can apply it to rectangle 2.

rectangle 1 :

72/x=12

x=6

therefore

72/6=12

rectangle 2:

A/x=18

A/6=18

6*18=108

A=108 in

Hope this helps

~Lalagrl

Find the lateral area of a cylinder with the given measurements. Use 3.14 for pi and round your answer to the nearest tenth.

height: 15 centimeters

radius: 9 centimeters

Question 11 options:

787.3 cm2

1356.5 cm2

847.8 cm2

889.9 cm2

So we know the formula for the lateral area of a cylinder is:

AL=2πrh

now all we have to do is put the given value in place of the correct variable then solve like so:

AL=2*3.14*9*15

AL= 847.8 cm2

so the answer is the third option

hope this helps

~Lalagrl

6 0
4 years ago
Read 2 more answers
a bag contains 15 dark chocolates, 16 caramel chocolates, and 19 milk chocolates. the probability that amber’s teacher distribut
Yuri [45]
The total number of chocolates is 15 + 16 + 19 = 50

There are 15 + 16 = 31 [dark chocolates + caramel chocolates]

The probability of picking one of them is 31 / 50.


8 0
3 years ago
Read 2 more answers
Other questions:
  • 8. There are 4,800 plastic spoons in a case.
    13·1 answer
  • How did Sinbad the Sailor play a role in The old man of the sea. Please help need it for tomorrow.
    10·1 answer
  • Anna is a teacher at an elementary school. She purchased 73 tickets to take the first-grade children and some parents on a field
    8·1 answer
  • Helpp me plzz!!! haha
    8·1 answer
  • A bookstore had 60 copies of a magazine. Yesterday, it sold 1/4 of them. Today, it sold 2/5 of what remained. How many copies do
    12·1 answer
  • Please explain how you got it
    9·1 answer
  • What type of system is the following set of equations?
    7·1 answer
  • 25 Points HELP ASAP <br> Features of quadratic functions: Strategy
    12·2 answers
  • Find the missing angle of the triangle with angle measurements of 75º and 80º. What is the missing angle? Explain how you found
    9·1 answer
  • The Copper river school district collected data about class size in the district.The table shows the class sizes for five random
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!