Answer:
She has 27 students now.
Step-by-step explanation:
Given :
The teacher has 30 students
10% students left.
To find : how much students does she have now?
Solution :
Since we are given that teacher has 30 students .
And 10% of students left
⇒ 10% of 30
⇒
⇒
⇒
Thus, 3 students left .
She had 30 students . three students left.
So, now she have 30 - 3 = 27 students .
Hence she has 27 students now.
The answer is +12 because you add on 12
Answer:
See explaination for the prove of the statement.
Step-by-step explanation:
To establish this prove, lets refer back to what we already know.
We know that "If the set of reactions {d1,d2,d3,......dn} in a vector space V over a field f be linearly dependent, then atleast one of the vectors of the set can be expressed as a linear combination of the remaining others.
Please kindly go to attachment for a detailed step by step explaination of the prove.
Answer:
D
Step-by-step explanation:
Whole numbers are the basic counting numbers: 
Integers are whole numbers and negative numbers: 
Rational numbers are all fractions
where m is an integer and n is a natural number.
Irrational numbers are all real numbers that are not rational.
Number
is irrational number (it is not counting number, so it is not whole number, not integer number), it cannot be represented as a fraction, so it is not rational number, thus this number is irrational number.
The product of integer number -2 by irrational number
is irrational number 
Correct option - option D