Answer:
Part 1)
10,000 different numbers.
Part 2)
A) 1 in 10,000.
Step-by-step explanation:
Part 1)
Since there are four digits and there are ten choices for each digit (0 - 9) and digits can be repeated, then we will have:
Thus, 10,000 different numbers are possible.
Part 2)
Since there 10,000 different tickets possible, the chance of one being the correct combination will be 1 in 10,000.
This is equivalent to 0.0001 or a 0.01% chance of winning.
The discriminant of a quadratic is given as
, so we know that
When using the quadratic formula to calculate values for
, we have to take the root of the discriminant. There is no real answer to the root of a negative number and so the equation has no real roots.
The NR of -2 is -0.5. So you would need to subtract -2.5
Answer:
C. s= 75
Step-by-step explanation:
One radian is the angle subtended by an arc length equal to the radius of the circle.
∅=s/r where s is the arc length ∅ the angle and r the radius of the circle.
Thus s=∅×r
In the circle provided arc s subtends and angle of 5 radians.
s= 5 radians× 15
=75