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
larisa [96]
3 years ago
14

The total number of toothpicks also forms a sequence: 4, 12, 24, 40, ... What rule describes this sequence?

Mathematics
1 answer:
astraxan [27]3 years ago
4 0
<span> rule describes this sequence is 
</span><span> an = 2 ( n^2 + n )

n = 1

</span> an = 2 ( 1^2 + 1 )
 an = 2 ( 1 + 1 )
 an = 2 ( 2 )
 an =  4

n = 2

 an = 2 ( 2^2 + 2 )
 an = 2 ( 4 + 2 )
 an = 2 ( 6 )
 an =  12

n = 3

 an = 2 ( 3^2 + 3 )
 an = 2 ( 9 + 3 )
 an = 2 ( 12 )
 an =  24

n = 4

 an = 2 ( 4^2 + 4 )
 an = 2 ( 16 + 4 )
 an = 2 ( 20 )
 an =  40
You might be interested in
Find the volume of the prism.<br><br> 5 units<br> 2 units<br> 8 units
Deffense [45]

Answer:

80 units.

Step-by-step explanation:

If it is a rectangular prism, then it is 5×2×8, which is 10, from the 5×2 and 8. 10×8 is 80. So the final answer is 80 units cubed. Hope this helps! If you are still confused, please comment so I can help you!

7 0
3 years ago
Read 2 more answers
9. What is the tan(90-x)?
Aleonysh [2.5K]

\\ \sf\longmapsto tanx=\dfrac{Perpendicular}{Base}

\\ \sf\longmapsto tanx=\dfrac{4}{3}

\\ \sf\longmapsto x=tan^{-1}(4/3)

\\ \sf\longmapsto x=53°

\\ \sf\longmapsto tan(90-x)

\\ \sf\longmapsto cotx

\\ \sf\longmapsto cot53

\\ \sf\longmapsto \dfrac{3}{4}

\\ \sf\longmapsto 0.75

6 0
2 years ago
Read 2 more answers
Given: Lines, and I are parallel, with transversal line t.
VladimirAG [237]

Answer:

5 = e=h

3 = a=e

6 = b=d

4 = d=f

2 = a=h

1 = c=f

Step-by-step explanation:

8 0
3 years ago
BRAINLIEST FOR CORRECT ANSWER
user100 [1]
2 times 2.5 times 1.5 times 10 equals to 75 square meters.
4 0
3 years ago
8x + 16 = 6x<br> Solve each problem for x without using tables or graphs
jarptica [38.1K]
8x + 16 =6x
16 = 6x-8x
16 = -2x
X=-8
4 0
3 years ago
Read 2 more answers
Other questions:
  • The price per share of Us toys stock fell from $38.58 to $28.82. Find the percent of decrease in price.
    8·1 answer
  • What is the meadian and mode i tried but i got sooooooooo confused im in 7th grade
    9·1 answer
  • A square has a side length of 6x+2. a rectangle with width 3x+1 has the same area as the square. what is the length of the recta
    6·1 answer
  • 0.561 rounded to the nearest hundredth is what
    15·2 answers
  • Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
    7·1 answer
  • The system of equations shown below is graphed on a coordinate grid:
    5·1 answer
  • What does x equal 10x-5=65
    5·2 answers
  • What type of solutions will a quadratic equation have when the discrimination b^2 - 4ac in the quadratic formula is negative? (p
    11·1 answer
  • In triangle HIJ, N is the centroid. If HK = 10, find KI.
    7·1 answer
  • when graphing a system of equations with "the same"or "different" in order to make the sentence a true statement ______________.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!