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The square of the sum of a number and 13?
Let 'N' be the number. The sum of the number and 13 is (N+13).The square of the sum of the number and 13 is (N+13)2N2 + 26 N + 169.It's probably easier to add 13 to the number and then square that answer ... less arithmetic.
The sum of 13 and twice a number?
2n+13
The sum of a number x and 13?
x+13 x+13
When you add two triangular numbers why do they equal to a square number?
They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.
Is the sum of any two prime numbers always a composite number?
The sum of any two prime numbers is not always a composite number. The sum of 2 and 11 is 13, and 13 is a prime number, not a composite number.
Why is the number 65 have 13 as a factor and is the sum of the digits of the number is 11?
65 has 13 as a factor because 13 divides into 65 evenly with no remainder. The sum of the digits of 65 is 11 because 6 + 5 = 11
What is twice the sum of a number and 11?
2n+13
When the sum of a number plus 3 is squared it is 13 more than the sum of the number plus 2 when squared?
4
When the sum of a number plus three is squared it is 13 more than the sum of the number plus two when squared.?
4
What number must be added to the sum of 11 and 12 to equal the sum of 13 and 14?
4
What is the product of the sum of 8 and 5?
The sum of 8 and 5 is 13. There is then no number with which to calculate its product.
What is a 2-digit number and a prime number and the sum of its digits is 13?
67
