Answer:
(x-10)(x+10)
Step-by-step explanation:
Here, the given expression,
By using the identity
( By the commutative property )
Since, further factorization is not possible,
Hence, the factors of are,
Second option is correct.
Answer:49
Step by step is 56÷16=3.5
14x3.5=49
Option A ( radius is twice the daimeter )
The relationship between radius and daimeter is given as
Radius² = Daimeter ⇒ r² = d
And cricumference can be calculated with radius
As circumference is 2πr
Answer: 5:4
Step-by-step explanation: you divide them i believe :)