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
zalisa [80]
3 years ago
9

Hello, how can I do this exercise the help is appreciated

Mathematics
1 answer:
Semenov [28]3 years ago
7 0

Answer:

5, 8, 11, 14, 17,....

f(n) = 5+3n where n is the number of steps after the first two. 7 steps is 20 faces.

Step-by-step explanation:

A sequence is a list of numbers that are related. The first number in the sequence is 5 since the first part of the stairs has 5 faces (5 squares, the dark don't count). Every time you add a "stair" you add 2 blocks - one underneath to support and one as the step. This adds 3 faces. So 5 becomes 8. Repeat and 8 becomes 11. You add 3 faces each time. So the sequence is

5, 8, 11, 14, 17,....

This is a constant pattern of adding 3 each time after the initial start. So we can write a rule. We start with 5 + 3(each stair step). So if the cube is 7 stairs high, that is 5 more repetitions of adding blocks after the start (remember the start has 2 steps already). So 5 + 3(5) = 20. 7 steps high will have 20 faces.

You might be interested in
19. What is the 6th term in the sequence below? 1, 3, 7, 15, 31, _, 127​
bearhunter [10]
The 6th term in the sequence should be 63
6 0
2 years ago
21 is what percent of 30?
ra1l [238]

\frac{21}{30} *100=70

(Divide then multiply by 100 and you get your answer)
- - Answer: 70%
5 0
3 years ago
What steps would you take to determine if these figures are similar? Check all that apply. Use a scale factor of 2. Multiply the
skad [1K]

Answer:

Well I took it"s Reflect the intermediate image.  and Multiply the vertices of polygon ABCD by One-half.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Answer the following ratios <br><br> 55 paise to Rs 1<br> 500ml to 2 liters
AfilCa [17]
55:1

500:2

There ya go!
7 0
3 years ago
When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams
worty [1.4K]
There is 1000 grams in a kilogram so he had a mass of 5,000 grames in his bag
7 0
3 years ago
Other questions:
  • formula one race cars reach speeds of approximately 100 meters Per second. what is the speed in meters per minute?
    12·2 answers
  • In Ms.Perron's class, 75% of the students are boys.There are 18 boys in the class. What is the total students in Ms.Perron's cla
    10·2 answers
  • 4,000 is times as much as 4
    8·2 answers
  • Divide, and then round the answer to two decimal places:<br><br> 0.6256108÷0.527
    14·1 answer
  • A factory is producing a linear number of objects in each shipment. If x = the shipment number, which function can be used to de
    12·1 answer
  • 9+3r&lt;2+2r and -3-5r&lt;6-4r
    11·1 answer
  • Pls help me :)?!!!!!!!
    14·1 answer
  • Devon has $5,768 in his savings account, which is $2,709 more than Serena has in her savings account. How much money does Serena
    8·1 answer
  • What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 6.5? (5 points)
    13·2 answers
  • Replace the values of mand n to show the solutions of this equation.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!