Repost your question. There is clearly a typo on the right side.
A quadratic equation is an equation whose leading coefficient is of second degree. The time can not be negative, therefore, the time in which the athlete complete the jump is 0.75 seconds.
<h3>What is a quadratic equation?</h3>
A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
The jump is represented by the equation h(x)= -16x²+4x+6. The time is represented by x, now the height of the athlete will be zero when the jump will be completed therefore, we can write,
0 = - 16x² + 4x + 6
0 = - 16x² + 12x - 8x + 6
0 = -4x(4x-3) -2(4x-3)
0 = (-4x-2)(4x-3)
x = -0.50, 0.75
Since the time can not be negative, therefore, the time in which the athlete complete the jump is 0.75 seconds.
Learn more about Quadratic Equations:
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Answer:
0.064 = 6.4% probability that none of the 10 calls result in a reservation.
Step-by-step explanation:
For each call, there are only two possible outcomes. Either it results in a reservation, or it does not. The probability of a call resulting in a reservation is independent of other calls. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
24% of the calls to an airline reservation phone line result in a reservation being made.
This means that
Suppose that an operator handles 10 calls. What is the probability that none of the 10 calls result in a reservation?
This is P(X = 0) when n = 10. So
0.064 = 6.4% probability that none of the 10 calls result in a reservation.
Answer:
x = 21, y = 25
Step-by-step explanation:
DEFG is a parallelogram.
Diagonals of a parallelogram bisects each other.