15-24/2
15-12
3
the answer is 3
Answer:
105
Step-by-step explanation:
The numbers that can be used to form triangles are collectively called "triangle numbers." The n-th triangle number is the sum of all numbers less than or equal to n. It is ...
n(n+1)/2
For n=14, the number is 14(15)/2 = 7·15 = 105.
The clerk used 105 oranges to make the arrangement.
a^2 evaluates to
a^2+a evaluates to
Multiply the exponent of a by 2giving
The answer is
a^2 evaluates to
+ =
The answer is
a^2+a+a^2 evaluates to
During the civil war, 1505 visited the war
