Which expression is equivalent to(x+4i)^2 A. X^2+16
B. x^2-16
C. x^2+8xi+16
D. x^2+8xi-16

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice