Answer:
<em><u>The number of students that like only Nokia </u></em>
<h2>= 30</h2>
Step-by-step explanation:
consider N the number of students who like Nokia → N=?
T the number of students who like Techno → T=35
Statement 1: In a class of 40 students, 5 like neither Nokia nor Techno
we can translate it like this: 35 student like Nokia or Techno
we can note it like this : T∪N= 35
Statement 2: 30 like Techno and Nokia
we can note it : T∩N = 30
using a rule concerning the number of element of a set :
T∪N = N + T - T∩N
then
35 = N + 35 - 30
⇒ N - 30 = 0
⇒ N = 30
Answer:4x+30
Step-by-step explanation:
Distribute 4(5+x) to get 20+4x
So then 10+20+4x
Which is 4x+30
Answer: 
Step-by-step explanation:
Given
The length of a rectangle is given by

and the breadth is given by

Perimeter is the sum of the sides of rectangle

Thus, the perimeter is given by
.
Answer:
False
Step-by-step explanation:
Definition of Tangency : Tangent to a circle is a line that touches the circle at one point, which is known as Tangency.
At the point of Tangency, Tangent to a circle is always perpendicular to the radius.
We are supposed to find The point of tangency of line S to circle A is M
Considering the definition,
The lines S touches the circle at point J not at M
So,The point of tangency of line S to circle A is M is False
So, Option B is correct
Hence The point of tangency of line S to circle A is M is False