Question

Q1. Answer the following:
a) Write the number that is neither prime nor composite
b) In
all sides are equal. (rhombus / trapezium)
c) Encircle the variable in: x + 7
d) is the additive identity.
e) Perimeter of regular hexagon is
1) An angle whose measure is more than 90° is called
g) Absolute Value of -46 is​

Answer 1

Answer:

The sum of three odd numbers is even.[False] i.e. 1+3+5 = 9 which is odd number

The sum of two odd numbers and one even number is even.[True] i.e. 3+5+2=10, 7+9+4=20

The product of three odd numbers is odd.[True] i.e. 3×5×7=105

If an even number is divided by 2, the quotient is always odd.[False] i.e. 12÷2=6 which is an even

number

All prime numbers are odd.[False] i.e. 2 is a Prime number but at the same time is also a even number

Prime numbers do not have any factors.[False] i.e.Prime numbers have always 2 factors - 1 and number itself

Sum of two prime numbers is always even.[False] i.e. 2 + 3 = 5 which is not an even number

2 is the only even prime number.[True] Because 2 is divisible by 2 and it has two factors - 1 and 2

All even numbers are composite numbers.[False] Because 2 is even number which has two factors only i.e. 1 & 2 where as composite number always has more than two factor

The product of two even numbers is always even[True] i.e. 4×6=24 or 6×8=48