90^2-54^2=5184
root 5184=72
pr=72
Rules for rounding is if the previous place is 5 or more, you round up. If it is less than 5, you round down. The thousandths place is five, so you would round up. Now you would also round the ones, since the tenths is at 9. So it would be 60.0
Answer:
-10
Step-by-step explanation:
Answer:
(D). 28
Step-by-step explanation:
We have been given that the smallest integer that can be divided by the product of a prime number and 7 while yielding a prime number.
We know that smallest prime is 2. The product of 2 and 7 is 14.
Let us divide our given numbers by 14.
(A) 7.

The quotient is not a integer or prime number.
(B). 14

We know that 1 is not a prime number.
(C) 24.

The quotient is not a integer or prime number.
(D). 28

Since 2 is a prime number, therefore, 28 is the smallest integer that can be divided by the product of a prime number and 7 and yield a prime number.