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3 years ago

9

You drop a ball from a height of 98 feet. At the same time, your friend throws a ball upward. The polynomials represent the heig

hts (in feet) of the balls after t seconds. At what time do the balls reach the same height?

1 answer:

Lynna [10]3 years ago

5 0

Answer: The polynomial is 92 - 46t

92,92,-46,46

Step-by-step explanation:

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pentagon [3]

Answer:

= x 3048

Step-by-step explanation:

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2 years ago

Each day, Robin commutes to work by bike with probability 0.4 and by walking with probability 0.6. When biking to work injuries

kvasek [131]

Answer:

64.65% probability of at least one injury commuting to work in the next 20 years

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}
$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Each day:

Bikes to work with probability 0.4.

If he bikes to work, 0.1 injuries per year.

Walks to work with probability 0.6.

If he walks to work, 0.02 injuries per year.

20 years.

So

$\mu = 20*(0.4*0.1 + 0.6*0.02) = 1.04$

Either he suffers no injuries, or he suffer at least one injury. The sum of the probabilities of these events is decimal 1. So

$P(X = 0) + P(X \geq 1) = 1$

We want $P(X \geq 1)$ . Then

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}
$

$P(X = 0) = \frac{e^{-1.04}*1.04^{0}}{(0)!} = 0.3535
$

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.3535 = 0.6465$

64.65% probability of at least one injury commuting to work in the next 20 years

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2 years ago

Which statement is not true about the pattern shown?<br> 2 4 8 16<br> 3: 612' 24'

hram777 [196]

Answer:

Each fraction is greater than the previous fraction.

Explanation:

The bigger the denominator, the smaller the fraction.

8 0

3 years ago

Read 2 more answers

Using the graphing function on your calculator, find the solution to the system

inessss [21]

This is all I got sorry if it don’t help

4 0

2 years ago

Read 2 more answers

Which phrases can be used to represent the inequality 6.5 x + 1.5 less-than-or-equal-to 21? Select two options. The product of 6

Montano1993 [528]

Answer:

The option with “at most” and “no more than”

Step-by-step explanation:

These two phrases mean “greater than or equal to”

5 0

3 years ago