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
vlabodo [156]
3 years ago
14

What are not rational numbers

Mathematics
1 answer:
m_a_m_a [10]3 years ago
7 0

Step-by-step explanation:

Numbers that cannot be written as a simple fraction are Irrational (i.e not rational) numbers.

Some examples are :

π = 3.14159...........

or

√2 = 1.41421.............

or

e = 2.718218...........

You might be interested in
What is “One third of the opposite of a number is less than 12?”
nirvana33 [79]

Answer:

\frac{1}{3}(-x)<12

4 0
3 years ago
Determine the astm grain size number if 33 grains per square inch are measured at a magnification of 270×
strojnjashka [21]
8.9

The equation for the grain size is expressed as the equality:
Nm(M/100)^2 = 2^(n-1)
where
Nm = number of grains per square inch at magnification M.
M = Magnification
n = ASTM grain size number

Let's solve for n, then substitute the known values and calculate.
Nm(M/100)^2 = 2^(n-1)

log(Nm(M/100)^2) = log(2^(n-1))
log(Nm) + 2*log(M/100) = (n-1) * log(2)
(log(Nm) + 2*log(M/100))/log(2) = n-1
(log(Nm) + 2*log(M/100))/log(2) + 1 = n

(log(33) + 2*log(270/100))/log(2) + 1 = n
(1.51851394 + 2*0.431363764)/0.301029996 + 1 = n
(1.51851394 + 0.862727528)/0.301029996 + 1 = n
2.381241468/0.301029996 + 1 = n
7.910312934 + 1 = n
8.910312934 = n

So the ASTM grain size number is 8.9

If you want to calculate the number of grains per square inch, you'd use the
same formula with M equal to 1. So:
Nm(M/100)^2 = 2^(n-1)
Nm(1/100)^2 = 2^(8.9-1)
Nm(1/10000) = 2^7.9
Nm(1/10000) = 238.8564458
Nm = 2388564.458

Or about 2,400,000 grains per square inch.
7 0
3 years ago
Zoe is doing a survey to find the time her classmates spend playing video games. She asks the following question:
kati45 [8]

she would need, hours (maybe minutes) and if she was doing daily or weekly amount of time.

Step-by-step explanation:

yes because it would give you numbers that you could then use to make some sort of chart to better understand your data

3 0
3 years ago
Read 2 more answers
Finish this 3,9,4,12,7,21,16
steposvetlana [31]
The pattern is that every 2 numbers are a pair, the first being any selected number, and the second number next to is the number times 3.

3 x 3 = 9
4 x 3 =12
7 x 3 = 21
Therefor we type 16 x 3 = 48

48 is your next number.
5 0
3 years ago
How do you solve 2 (+-1) =24<br> solve 2(+-1) =24
ExtremeBDS [4]

Answer:

2 + (-1) = 24

2-1 = 24

1=24????????????

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • You are ima room with other students and are asked to get in groups of 3. When finished, there are 21 groups of 3. How manny stu
    12·2 answers
  • Explain how you could use the construction tool or a compass and straightedge to create a line segment that is twice as long as
    11·1 answer
  • There are 32 students in a class. Nine of those students are women, what percent to the nearest whole are men?
    12·1 answer
  • Identify the sequence as arithmetic, geometric, or neither. Explain your answer.
    11·1 answer
  • Karen purchased the DVD
    6·1 answer
  • Mr.Richardson is a sales representative for an electronics store. Each month, he receives a salary of $1800 plus a 6% commission
    5·1 answer
  • Keisha deposits $500 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in t
    13·1 answer
  • 2. Kervins is $28 in debt because he borrowed money to buy food after school. He plans to pay back his debt at a rate of $7 per
    7·1 answer
  • Find the percentage decrease ???​
    7·1 answer
  • Pls help dont care about the blue dot btw
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!