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]
2 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]2 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
Determine the geometric mean of 11 and 8.
Mekhanik [1.2K]

Answer:

\sqrt{88}

Step-by-step explanation:

8 0
3 years ago
A rectangle has a height of 2x4 and a width of x2 + 8x + 15.
aliina [53]

Answer:

2x⁶ + 16x⁵ + 30x⁴

Step-by-step explanation:

7 0
2 years ago
Drag each equation to the model and situation it matches.
Alexxandr [17]

Answer:

YNW's ah family

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
ASAP
lesya692 [45]
The given regression shows the relationship between the numbers of car washed(x) and the amount earned for charity(y).

y = 10x + 20

We are to calculate the amount of charity if 50 cars are washed. Number of cars are represented by x, so by substituting x = 50 in above equation we can find the amount of charity that is earned by washing 50 cars.

y = 10(50) + 20 = $ 520

Thus, the charity can earn $520 if 50 cars come in for a wash.
5 0
3 years ago
The exponential model A=302.5e^0.0211 describes the​ population, A, of a country in​ millions, t years after 2003. Use the model
Naddik [55]

The population of the country in 2003 is 302.5 million

<h3>How to determine the population of the country in 2003.</h3>

From the question, we have the following parameters that can be used in our computation:

Exponential model, A = 302.5e^0.0211t

Where i is the number of years after 2003

In the year 2003, the value of t is 0

i.e. 0 years after 2003

So, we have

A = 302.5e^(0.0211 * 0)

Evaluate the products

A = 302.5 * 1

So, we have the following result

A = 302.5

Hence, the population is 302.5 million

Read more about exponential models at

brainly.com/question/27161222

#SPJ1

3 0
1 year ago
Other questions:
  • A city had 5.4 inches of rain in September and 4.5 inches of rain in October. What is the difference in rainfall between the two
    10·2 answers
  • What is the equivalent of pi over 3 radians in degrees?
    11·2 answers
  • 4:25 am. What is the time that is 4 hours and 45 minutes after the time shown?
    12·2 answers
  • PLEASSSSSSSSSSSE HELLP!!!
    13·1 answer
  • a test is worth 80 points multiple choice questions are worth 2 points and short answer questions are worth 4 points if the test
    13·2 answers
  • A bulletin board has an area of 1/ 12 yd and a length of 1/3 yard the bulletin board is divided into six equal sections right vi
    11·2 answers
  • Fill in the blanks with a positive or negative Integer
    10·1 answer
  • WILL GIVE BRAINLYEST
    7·1 answer
  • A grocery store has bananas on sale for 2 pounds for $1.50. What is the cost of 6 pounds of bananas?
    9·2 answers
  • QUWX is a field in the shape of a Trapezium whose parallel sides are 121m and 56m and the non parallel sides are 82m and34m. fin
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!