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
LiRa [457]
3 years ago
5

What is the 21st term of an arithmetic sequence with terms a6=50 and a11=85?

Mathematics
1 answer:
frosja888 [35]3 years ago
8 0
B.)155 

a1+d(n-1)
a1+d(6-1)=50
a1+5d=50
a1+d(11-1)=85
a1+10d=85
a1=50-5d
(50-5d)+10d=85
50-5d+10d=85
5d+50=85
5d=35
d=7
a1+7(6-1)=50
a1+35=50
a1=15
15+7(n-1)
15+7(21-1)
15+7(20)
15+140=155
You might be interested in
Which one is distributive property
faust18 [17]

Answer:

G

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the reasonable estimate for -3/2 x -5 1/4
Lady bird [3.3K]

Answer:

7.875......7.9.....or 8

Step-by-step explanation:

-3÷2×-21÷4= 7.875

63÷8=7.875

3 0
3 years ago
Read 2 more answers
0.68 = 0.6 + ___ = ____ x 0.1 + 8 x ____
8_murik_8 [283]

0.68 = 0.6 + .08 = 6 x 0.1 + 8 x .01

They should all equal  0.68  :)

5 0
3 years ago
What power of 10 can you multiply 0.02 by to get a product of 20? Explain your answer.
viva [34]
10^1 = .2
10^2 = 2.0
10^3 = 20.0

So, the answer is 3.
7 0
3 years ago
Read 2 more answers
Hey there guys could anyone help me out here? tutors are unavailable and help would really be appreciated.
Scilla [17]

Answer:

50 degrees

Step-by-step explanation:

because it is a parallelogram, angle B = angle D, and angle C = angle A

that means we have 130(2) = 260 degrees that we know.

the total interior angles of a parallelogram = 360

360 - 260 = 100 degrees left. BUT because those are the total amount of angles left, those are angles A and C combined, so you have to divide 100 in half to get the angle A/ angle DAB

100/2 = 50 degrees. hope this helps! leave a question if you are still confused.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the equation: 3y - 7 = 5y + 21? Question 1 options: -20 -14 -7/2 14
    9·2 answers
  • Is 1/2 x 3/5 larger or smaller than 1/2? Why?
    7·1 answer
  • A researcher records the following scores on a working memory quiz for two samples. Which sample has a larger standard deviation
    8·1 answer
  • Write AN EQUATION of the line that passes through the given points <br><br> (-1,4) and (2,-5)
    6·1 answer
  • It is $3.00 an hour to rent a skateboard and $4.00 to rent safety equipment. You are required to wear safety equipment in the Sk
    13·1 answer
  • Solve for x: 1 &lt; x + 3 &lt; 4
    8·1 answer
  • find the difference of each number and 4. Complete the table to support your answers. The first example is provided. Number Subt
    15·1 answer
  • Find the area of each figure. <br> Please help!! I usually don’t ask for help I’m having trouble.
    6·1 answer
  • Will someone help please? only with 1-8​
    6·2 answers
  • Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!