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
Radda [10]
3 years ago
13

If a3 = 11 and a5 = 7 and ak is the -th term of the sequence and ak = -9, then what is the value of k?

Mathematics
1 answer:
babymother [125]3 years ago
6 0
An=a3+d

-9=11+-2

2n=26

n=13
You might be interested in
Can someone help me solve for y and x and find out the angles of all the angles visable
amm1812

Answer:

x = 10 , y = 15

Step-by-step explanation:

8x - 10 and 7x are alternate angles and are congruent , then

8x - 10 = 7x ( subtract 7x from both sides )

x - 10 = 0 ( add 10 to both sides )

x = 10

Then

8x - 10 = 8(10) - 10 = 80 - 10 = 70

6y + 20 and 8x - 10 are same- side interior angles and sum to 180°, that is

6y + 20 + 70 = 180

6y + 90 = 180 ( subtract 90 from both sides )

6y = 90 ( divide both sides by 6 )

y = 15

7 0
2 years ago
Determine if A^-1 C=C A^-1 Given:<br><br> A^-1 C=
ryzh [129]

<em>CA </em>⁻¹ is undefined because there are more columns in <em>A </em>⁻¹ than there are rows in <em>C</em>.

6 0
3 years ago
Read 2 more answers
Sum of 2 numbers is 5 difference of the same 2 numbers is 9
liq [111]

Answer:

5 and 4

Step-by-step explanation:

7 0
3 years ago
Write four decimals with the 4 digit in a different place in each --- ones tenths hundreds and thousandths.Then write a statemen
vodka [1.7K]
4 .04 .004 .0004
 and no statment for me

4 0
3 years ago
One-third times the difference of a number and 5 is
AfilCa [17]

Answer:

the value of x is 3

Step-by-step explanation:

Hope this helps!!!! :)

5 0
3 years ago
Other questions:
  • 4x+8=7.2+5x , What Is The Value Of x?
    7·2 answers
  • On a piece of paper graph f(x)=-1
    15·2 answers
  • <img src="https://tex.z-dn.net/?f=%5Csqrt%7B8%7D%20%2B%20%5Csqrt%7B2%7D" id="TexFormula1" title="\sqrt{8} + \sqrt{2}" alt="\sqrt
    8·1 answer
  • A store sells 4 cans of beans for $9. What is the price of 7 cans of beans?
    5·2 answers
  • Factor tree of short division 999​
    14·1 answer
  • The sum of two numbers is 46. The larger number is two less than three times the smaller number. Find the numbers.‍♀️
    12·1 answer
  • Aline segment may have more than one midpoint.<br> A. True<br> B. False
    6·2 answers
  • Please help me on this ​
    6·2 answers
  • What is the measure of an anglethat is supplementary to an angle of 37°? A. 127° B. 53° C. 143° D. 323°​
    9·1 answer
  • Gina puts $ 4500 into an account earning 7.5% interest compounded continuously. How long will it take for the amount in the acco
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!