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
SSSSS [86.1K]
3 years ago
6

Find the 39th term of the arithmetic sequence

Mathematics
1 answer:
myrzilka [38]3 years ago
8 0

Answer:

  -142

Step-by-step explanation:

You seem to have an arithmetic sequence with first term -66 and common difference (-68-(-66)) = -2. The general term of such a sequence is given by ...

  an = a1 +d(n -1) . . . . . for first term a1 and common difference d

We want to evaluate this equation for a1 = -66, d = -2, n = 39:

  a39 = -66 -2(39 -1) = -66 -76 = -142

The 39th term is -142.

You might be interested in
The next number in the sequence -5, -2, 4, 13 is 25. Is this conjecture true or false?
steposvetlana [31]

Answer:

False

Step-by-step explanation:

The sequence seems to be increasing by 3+3(-5+3=-2, -2+3+3=4, so on). By 13, the sequence is increasing by 11, making the next number 24.

7 0
3 years ago
If there are 80 toys in a shop, 40% of them are for boys. 50% of the boy's toys and 50% of the girl's toys are made by the shop
lana [24]

Answer: 8 more girl toys than boy toys

Step-by-step explanation:

First you need to find out how many of the toys are for boys and girls.

———————————————

80 * 40 = 80 * 0.4 = 32

32 toys are for boys

———————————————

80 - 32 = 48

48 toys are for girls

———————————————

Now find 50% of the boy and girl toys.

32 * 50% = 32 * 0.5 = 16

48 * 50% = 48 * 0.5 = 24

———————————————

Now subtract the number of girl toys by the number of boy toys to find out how many more were made for girls than boys.

24 - 16 = 8

3 0
3 years ago
Read 2 more answers
A swimming pool is filled with<br> water. Find ..<br> 15m<br> 1.2<br> 3.7m<br> 1.89
Andreyy89

Answer:

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The archway to the entrance of an art gallery can be model by y= -1/3(x-5)(x+5) where x and y are measured in feet. The x-axis r
NikAS [45]

Answer:

x=5 feet

Step-by-step explanation:

At floor level y=0

If the expression is:

0=1/3(x-5)(x+5)\\0=1/3(x^2-25)\\0=1/3x^2-25/3\\25/3=1/3x^2\\25=x^2\\x=5

But, with the negative sign, the answer is x= 5i (where i is imaginary)

3 0
3 years ago
18. Jameson and Quincy each deposit $7,000 into accounts that earn 6%
mina [271]

Answer:

Jameson will have about $267.58 less in his account than Quincy

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Lateral area of the cylinder and volume of cylinder
    10·1 answer
  • How do you find the value of X?
    8·2 answers
  • Ming-Li spent $15 at the movies. She then earned $30 babysitting. She spent $12 at the bookstore. She now has $18 left. How much
    14·2 answers
  • Which of theses measurements could describe the volume of a prism? Select all that apply.
    5·1 answer
  • What is the value of X
    10·2 answers
  • How many solutions does this system have?<br> 2x+3y=-3<br> 3x+ 5y=-9
    7·1 answer
  • What is the equation of the line that passes through the point (-4, -7) and has a<br> slope of 5/2 ?
    10·1 answer
  • A number is divided by
    10·1 answer
  • What’s the answer to this question? i need your help<br> -2(-7m - 4) + 1
    5·2 answers
  • Hi! really need help with my math and its due tmrw please helppp Also make sure
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!