Answer:
Yes, it is true that 
is a factor of 
.
Step-by-step explanation:
Let us try to factorize
Let us try to make a whole square of the given terms:
--------------
Formula used above:
In the above equation, we had 
.
--------------
Further solving the above equation, taking 
common out of 
Taking 
common out of the above term:
So, the two factors are 
.
The statement that is a factor of is <em>True.</em>
Answer:
The only multiples of 3 between 20 and 30 are 21, 24, and 27. Only 27 satisfies the condition that it is 3 times the sum of its digits.
Step-by-step explanation:
X represents the number of minutes.
y represents the price of the bill.
Plan A
y = 25.75+0.75x
Plan B
y= 20.99+x
Plan A is better when it is more than 19 minutes.
Plan B is better when it is less than 19 minutes.
So this equation will be
x^2 +y^2 = 16^2
hope this will help you
