Answer:
16
Step-by-step explanation:
15 – 24 +30 – 5
–9+25
= 16
B m-125. He started with m and spent 125
Answer:
Step-by-step explanation:
Answer:
We conclude that is the binomial distribution.
Step-by-step explanation:
We know that the binomial distribution describes the probability of k successes in n draws with replacement.
We know that: Spinning an American roulette wheel 45 times and recording the number of times the ball lands on green.
So with each new turn, we have the same opportunity for the ball to be on the green.
We conclude that is the binomial distribution.
Answer:
- no real solutions
- 2 complex solutions
Step-by-step explanation:
The equation can be rearranged to vertex form:
x^2 -4x = -5 . . . . . . . . . subtract 4x
x^2 -4x +4 = -5 +4 . . . . add 4
(x -2)^2 = -1 . . . . . . . . . show the left side as a square
x -2 = ±√-1 = ±i . . . . . . take the square root; the right side is imaginary
x = 2 ± i . . . . . . . . . . . . . add 2. These are the complex solutions.
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<em>Comment on the question</em>
Every 2nd degree polynomial equation has two solutions. They may be real, complex, or (real and) identical. That is, there may be 0, 1, or 2 real solutions. This equation has 0 real solutions, because they are both complex.
