What is the product?
3.1 -4 5-7)
A. [3 -12 15 -21]
B.[4 -1 8 -4]
C.[3 12 15 21]
D.[4 -12 8 -21]

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Which graph represents the equation y =4x