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What two numbers sum to 0 and have a product of -25?
-5 and +5.
What two factors sum to 2?
Two factors of what? To sum to -2, some possibilities are: -1, -1 => what is 1 0, -2 => what is 0 1, -3 => what is -3 2, -4 => what is -8 3, -5 => what is -15 4, -6 => what is -24
What is the sum of 75-100 plus 0?
75 - 100 + 0 = -25
Is 25 a prime or composite number why?
Composite because it has more than two factors.
What is the magnitude of the two vectors having a sum of zero?
If their sum (resultant) is 0, then the magnitude of the resultant must be 0.
Two numbers whose sum is 0?
-1+1=0
Is 25 prime or composite why?
composite because it has more than two factors
Write a c program that multiplies two numbers by repeated subtraction?
int mul (int a, int b) { int sum= 0; for (; b>0; --b) sum -= -a; for (; b<0; ++b) sum -= a; return sum; }
What is two opposite numbers whose sum is 0?
-1+1=0
What is two numbers a and -a whose sum is 0?
'a' can be any number whatsoever. The sum of +a and -a is always zero.
When Two vectors have unequal magnitude can their sum be zero explain reason?
No two vectors of unequal magnitude cannot give the sum 0 because for 0 sum the 2 vectors must be equal and in opposite direction
What are two factors of 64 that have a sum of 16?
xy = 64 x + y = 16 y = 16-x x(16-x) = 64 16x -x^2 -64 = 0 x^2 -16x + 64 = 0 (x-8)(x-8) =0 both factors = 8
