Find the range of {(3.2, –3), (7.6, 5.9), (1.4, –3), (–9.1, 8.3)}.
1 answer:
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Answer:
a. The probability of both balls are blue is .
b. The probability of getting first red and second yellow ball is .
Step-by-step explanation:
It is given that the box contains 14 red balls,12 blue balls,and 9 yellow balls. The total number of balls is
The probability is defined as
Probability of getting red ball =
Probability of getting blue ball =
Probability of getting yellow ball =
It is given that a ball is drawn at random and the color is noted and then put back inside the box. It means first event will not effect the probability of second event.
a.
The probability of both balls are blue is
b.
The probability of getting first red and second yellow ball is
9514 1404 393
Answer:
- down
- maximum
- x=2; (2, 1), -3
Step-by-step explanation:
1. The negative leading coefficient (-2) tells you the parabola opens downward.
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2. The fact that the parabola opens downward tells you the vertex is a maximum.
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3. For quadratic ax^2 +bx +c, the axis of symmetry is x = -b/(2a). For this parabola, that is x = -4/(2(-1)) = 2. The y-value of the vertex is f(2) = -2^2+4(2)-3 = -4+8-3 = 1. The y-intercept is the constant, c = -3.
- axis of symmetry: x = 2
- vertex: (2, 1)
- y-intercept: (0, -3)
