Answer:
160
Step-by-step explanation:
13² - 3² = 13 × 13 - 3 × 3 = 169 - 9 = 160
Answer:
Least possible value of b is 9.
Step-by-step explanation:
It is given that
and b is an odd integer.
We need to find the least possible value of b.
We have,

Isolate variable terms.


Divide both sides by 3.

Since b>8 and b an odd integer, therefore the possible values of b are 9, 11, 13, 15, ... .
Hence, the least possible value of b is 9.
The absolute value of 2 + 7<span> is 5.</span>
Answer:
2.5
Step-by-step explanation:
Put the values in place of the corresponding variables and do the arithmetic:
ab - 0.5b = (1)(5) -0.5(5) = 5 - 2.5 = 2.5