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
Ronch [10]
3 years ago
11

Need the answer to​ this thank you!

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0

Answer:

n = 4

Step-by-step explanation:

Use the explicit formula of a arthmetic sequence: an = a1 + d(n - 1)

a1 = -70

d = -10

an = -100

Do all of the steps and plug all the numbers with the formula.

So -100 = -70 - 10(n - 1)

-100 = -70 - 10n + 10

-100 = -60 - 10n

-100 + 60 = -40

-40 = -10n

-40/-10n = -10n/10

n = 4

So the final answer is n = 4. Just follow all of the steps and you will understand how I got my answer. Hope it helped!

You might be interested in
(10-6) to the 3rd power *4 tothe 2nd power + (10 +2) to the 2nd power. Whats the answer?
andrew-mc [135]
(10 - 6)^3 * 4^2 + (10 + 2)^2
4^3 * 4^2 + 12^2
4^5 + 12^2
1024 + 144
1168 <==
6 0
3 years ago
Read 2 more answers
A circular picture is 8 inches in diameter what is the area of the picture in square inches
barxatty [35]

area = PI x r^2

radius = 1/2 diameter

1/2 of 8 = 4

3.14 x 4^2 = 3.14 x 16 = 50.24 square inches ( answer may vary depending on what you use for PI. 3.14 is common)

6 0
3 years ago
Read 2 more answers
In a 30-60-90 triangle, the hypotenuse is the shorter leg times the square root of two.
Free_Kalibri [48]
False!

<span>In a 30-60-90 triangle, the hypotenuse (c) is twice the length of the shorter leg (a): c = 2a
</span>In a 30-60-90 triangle, the longer leg (b) is equal to the shorter leg (a) multiplied by √3: b = a√3
7 0
3 years ago
Jasmine wants to use her savings of $1,128 to buy video games and music CDs. The total price of the music CDs she bought was $72
inysia [295]
For the answer to the question above, she can buy 24 video games

Because she bought a CD on her savings, we must deduce the cost of the CD from her 1,128 savings 
1128 - 72=1056

Then just divide the difference to how much each videogame cost
1056 / 43 = 24

So the answer is she can buy 24 videogames.
3 0
3 years ago
Read 2 more answers
I need help asap, please and thank you :))​
Troyanec [42]

Answer:

What is the value of x?

<em>x = 40 degrees.</em>

What is the measure of angle AFE?

<em>Angle AFE = 140 degrees</em>

What is the measure of angle BFD?

<em>Angle BFD = 140 degrees.</em>

Step-by-step explanation:

Angle AFC is 90 degrees.

To find angle x, we have to subtract angle BFC.

90 - 50 = 40 degrees.

Line BFE is 180 degrees.

To find angle AFE, we have to subtract angle x from 180 degrees.

We have solved x already.

180 - 40 = 140 degrees.

Angle BFD is just 90 degrees plus 50 degrees.

90 + 50 = 140 degrees.

6 0
3 years ago
Read 2 more answers
Other questions:
  • T takes tristan 30 minutes to read 20 pages of her book. if she continues to read at this rate, how long will it take her to rea
    7·2 answers
  • In Spencer’s garden, the number of rose bushes is 7 less than 1.5 times the number of carnation bushes. If the number of carnati
    14·2 answers
  • Write 2n^4 without Exponents
    7·2 answers
  • I need help with 1-3 please and help!
    10·1 answer
  • How many times will the digit '1' appear if we write all whole numbers from 1 to 999?
    13·1 answer
  • 4(x + 3) ≤ 0 or x+1&gt;3
    13·1 answer
  • Two real estate companies, Century 21 and RE/MAX, compete with one another in a local market. The manager of the Century 21 offi
    9·1 answer
  • Convert 614 into base five number system.​
    14·1 answer
  • The equivalent rational number of 5 by 15 is
    14·1 answer
  • La linea punteada en la figura muestra un corte realizado a un triángulo. El corte es Paralelo A La Base Y Se Corta Por La Mitad
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!