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
Grace [21]
3 years ago
13

3. The first four terms of a sequence are:

Mathematics
2 answers:
iren2701 [21]3 years ago
3 0

Step-by-step explanation:

tn=n(n+1)(2n+1)

t23=23(23+1)(2*23+1)

t23=36754

tatiyna3 years ago
3 0

Answer:

The 23rd term is 2806.

Step-by-step explanation:

The other answerer has used the formula but i'm answering from the assumption that T1 to T4 are correct.

Each term is the sum of n terms of an arithmetic series with first term a1 = 12 and common difference d = 10.

Sum of n terms = (n/2)[2a1  + d(n - 1)]

So the sum of 23 terms =

= 23/2 (2*12 + 10 * 22)

= 11.5 * 244

= 2806.

You might be interested in
What happens when the radius of a cylinder is doubled
liq [111]
Then it would get bigger, thats what makes sense... are there answer choices?
3 0
3 years ago
Nicole earns $40,768 per year, what are her weekly gross earnings?
Karolina [17]
($40768/y)(y/52w)=$784/week

Seven hundred and eighty-four dollars per week.
4 0
3 years ago
Read 2 more answers
The coordinates of a point on a coordinate grid are (−3, 7). The point is reflected across the x-axis to obtain a new point. The
shepuryov [24]
The reflected points would be (-3,-7) 

The x coordinate would stay the same but the y-coordinate would be the opposite 
8 0
3 years ago
3 = x/12 - 4 what is x
alexgriva [62]

Answer:

x=84

Step-by-step explanation:

Add 4 on both sides

3=x/12-4

7=x/12

Multiply both sides by 12

(12)7=x/12(12)

84=x

Hope this helps! :)

3 0
3 years ago
Read 2 more answers
Use the function below to find F(3).<br> )(<br> F(x)=(1/4)^x
natali 33 [55]

Answer:

1/64

Step-by-step explanation:

F(3) means to use 3 in place of x in the given equation.

f(x) = (1/4)^x

f(3) = (1/4)^3

Either use exponents rules:

= 1^3 / 4^3

= 1 / 64

or just use the meaning of exponents

= 1/4 × 1/4 × 1/4

= 1/64

3 0
2 years ago
Other questions:
  • What is the slope of a line perpendicular to the line whose equations is x-y=6
    5·1 answer
  • Which expression is equivalent to -1/12x-1/3?
    12·2 answers
  • What is 2.11 in a mixed number simplified
    15·2 answers
  • Help!!! I need the answer ASAP!!!
    5·2 answers
  • If 9 less than 6 times a number lies between 31 and 37, what is the number
    10·2 answers
  • What is 21-123+12*196
    10·1 answer
  • write an equation that could be used to find two consecutive even integers whose product is 24. Let x represent the first intege
    11·1 answer
  • If i had 33 watermelons in one hand and 21 apples in another <br> what do i have?
    8·2 answers
  • The function is defined by ()= −2+6. What is the value of (10)?
    7·1 answer
  • Suppose the class sizes in high schools in a major public school district are normally distributed with an unknown population me
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!