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
Sunny_sXe [5.5K]
3 years ago
11

Thea has a key on her calculator marked $\textcolor{blue}{\bf\circledast}$. If an integer is displayed, pressing the $\textcolor

{blue}{\bf\circledast}$ key chops off the first digit and moves it to the end. For example, if $6138$ is on the screen, then pressing the $\textcolor{blue}{\bf\circledast}$ key changes the display to $1386$. Thea enters a positive integer into her calculator, then squares it, then presses the $\textcolor{blue}{\bf\circledast}$ key, then squares the result, then presses the $\textcolor{blue}{\bf\circledast}$ key again. After all these steps, the calculator displays $243$. What number did Thea originally enter?
Mathematics
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

$9$

Step-by-step explanation:

Given: Thea enters a positive integer into her calculator, then squares it, then presses the $\textcolor{blue}{\bf\circledast}$ key, then squares the result, then presses the $\textcolor{blue}{\bf\circledast}$ key again such that the calculator displays final number as $243$.

To find: number that Thea originally entered

Solution:

The final number is $243$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $243$ must be $324$.

As previously the number was squared, so the number before $324$ must be $18$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $18$ must be $81$

As previously the number was squared, so the number before $81$ must be $9$.

You might be interested in
Find the approximate side length of a square game board with an area of 192 in2.
padilas [110]
Squares have 4 equal sides, thus, the answer is 48 in^2.
8 0
3 years ago
Read 2 more answers
M is directly proportional to r³ when r=4, m=160.work out the value of r when m=20
11Alexandr11 [23.1K]
Die haben sich auch schon in den nächsten Jahren und in den letzten Wochen nicht so viel 5=5
7 0
2 years ago
Simplify the numerical expression.
laiz [17]

Answer:

Step-by-step explanation:

13-2x 5

13-5= 8

2x 8

5 0
3 years ago
13p - 3 = 5p + 13 find p please
densk [106]
P=2. Hope this helps
7 0
3 years ago
Read 2 more answers
I need help with this question
Semmy [17]

40 it's the same angle as angle A rotation doesn't change anything

7 0
3 years ago
Other questions:
  • the coffee pub has cans of coffee that weight 3 1/4 pounds each. the pub has 8 1/2 cans of coffee left. What is the total weight
    15·1 answer
  • Graph the image after a reflection over the line x = 1. What are the coordinates of the image of point C(2, –6) after the reflec
    9·1 answer
  • WILL MARK BRAINLIEST IF CORRECT ANSWER I NEED TO TURN IT IN IN 10 MINS
    14·2 answers
  • Stephanie bought 3 pizzas for a total of $9.00. Which expression shows p, the cost of each pizza?
    12·1 answer
  • Pat rides her bike to her friend's house every day for school.
    7·1 answer
  • Which expression is equivalent to −2412+16.15−4?
    7·1 answer
  • Cari x dari sudut diberikan<br> -<br> Find x from the given angles
    6·1 answer
  • 3. Which of the following equations represents a proportional relationship?
    14·2 answers
  • Your visually impaired friend asked you to enlarge your notes from class so he can study. You took notes on 8.5-inch by 11-inch
    15·1 answer
  • Set A contains all integers from 50 to 100 inclusive, Set B contains all integers from 69 to 138 exclusive. How many integers ar
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!