For a quadratic equation ax^2 + bx + c = 0, the discriminant is given by b^2 - 4ac
Thus for a^2 - 2a + 5 = 0,
a = 1, b = -2 and c = 5
b^2 - 4ac = (-2)^2 - 4(1)(5) = 4 - 20 = -16
Answer:
1 + 2 a^n
Step-by-step explanation:
3.019 because if the digit after the place you're looking at is 5 or more then you round up.
Answer:
four magazines and two books
Step-by-step explanation:
3.50*4= 14
4*2= 8
14+8= 22
