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
gulaghasi [49]
3 years ago
14

Write an explicit formula fo the sequence 7,2,-3,-8,-13.... Then find the 14th term

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

The 14th term is -58

Step-by-step explanation:

The formula for an arithmetic sequence is

an = a1+d(n-1)

where a1 is the first term

d is the common difference and

n is the term number

a1 = 7

d = 2-7 = -5

Check -3-2 = -5   so d = -5

an = 7 -5(n-1)

We want the 14th term

a14 = 7 -5(14-1)

a14 = 7 -5(13)

a14 = 7 -65

a14 = -58

You might be interested in
Mr Nersin likes to ride his bike. He rode for 1/2 hour. After a short rest, he rode 1/10 hour more. He traveled 4 miles in all.
vodomira [7]
The distance traveled by Mr.Nersin = 4 miles
The time for which Mr.Nersin rode first = 1/2 hour
The time for which Mr.Nersin rode after a short rest = 1/10 hour
Then
The total time for which Mr.Nersin rode = (1/2) + (1/10) hour
                                                                = (5 + 1)/10 hour
                                                                = 6/10 hour
                                                                = 3/5 hour
So
Average speed of Mr. Nersin = Distance traveled / Time taken
                                                = 4/(3/5) miles/hour
                                                = (4 * 5)/3 miles/hour
                                               = 20/3 miles/hour
                                                = 6 2/3 miles/hour
                                                = 6.67 miles per hour
So the average speed at which Mr.Nersin traveled is 6 2/3 or 6.67 miles per hour.
6 0
3 years ago
Read 2 more answers
NEED ANSWER ASAP pls
EleoNora [17]

Answer:

Let F = Fran's income

Let W = Winston's income

Combined income is 80000  ==>  F + W = 80000

One quarter of Winston's income is the same as one-sixth of Fran's income  ==>  

(1/4)*W = (1/6)*F

Multiply the 2nd equation by 12 to clear the fractions  

3*W = 2*F

Solve this equation for F

F = (3/2)*W

Substitute this value for F into the 1st equation

(3/2)*W + W = 80000

(5/2)*W = 80000

W = (2/5)*80000 = 32000

So F = 80000 - 32000 = 48000

So Winston earns 32000 and Fran earns 48000

Check:  One quarter of Winston's income is 32000/4 = 8000

           One sixth of Fran'e income is 48000/6 = 8000

Step-by-step explanation: Hope this helps

4 0
2 years ago
Select all expressions that are equivalent to 5x + (x+6) + 3x.
liraira [26]
The correct answer is 9x+6.
5 0
2 years ago
Read 2 more answers
Consider the equations below.
saul85 [17]
<span>x=<span><span><span><span>−200</span>347</span><span> and </span></span>y</span></span>=<span><span>−600</span><span>347</span></span>
4 0
3 years ago
Read 2 more answers
A gallon jug of milk is 5/6 full. After breakfast the jug is 1/12 full. Find the difference of the amounts before breakfast and
Oxana [17]
5/6=10/12

So 9/12 is the differemce
6 0
3 years ago
Read 2 more answers
Other questions:
  • W h a t is five pl us t h r e e
    7·1 answer
  • Find the slope and y intercept of the line 6x+ 2y=-88
    11·1 answer
  • Wrire a word problem for 3/5 times 2/3.
    11·1 answer
  • What's ∣x−2∣=∣4+x∣????
    11·1 answer
  • After a command economy is first created, a country often experiences immediate benefits. Which of the following benefits is NOT
    14·1 answer
  • PLEASE HELP I NEED THE ANSWER LIKE NOW!!!!
    6·2 answers
  • HElP Due in 30 min<br> x =
    6·1 answer
  • Caleb cut a rope into 4 pieces. The lengths of the pieces of rope are 5 2/8 inches, 7 7/8 inches, 4 1/8 inches, and 3 3/8 inches
    8·1 answer
  • PLEASE HELP<br> Round your answer to the nearest hundredth
    11·1 answer
  • 1 1/2 + 2/5=<br> please help i will give you 72 points
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!