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3 years ago

Can one of y’all help me please????

Mathematics

1 answer:

amid [387]3 years ago

7 0

Answer:

1,0

Explanation:

Graphically, where the line crosses the x -axis, is called a zero, or root. Algebraically, a zero is an x value at which the function of x is equal to 0 . Linear functions can have none, one, or infinitely many zeros.

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HELP!! Find the mean, median, and mode of the data. mean: median: mode:

goblinko [34]

Answer: mean:4 Median: 3 mode:10

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Three workers have to do a certain job. The first worker can finish the job in 8 hours. The second worker can finish the job in

mestny [16]

Working together three workers would take 1 hour 36 minutes to finish the job

Solution:

Given that first worker can finish the job in 8 hours

So in one hour, first worker can do $\frac{1}{8}$ th of the work

The second worker can finish the job in 4 hours

So in one hour, second worker can do $\frac{1}{4}$ th of the work

The third worker can also finish the job in 4 hours

So in one hour, third worker can do $\frac{1}{4}$ th of the work

The three workers working together in 1 hour can do:

$\frac{1}{8} + \frac{1}{4} + \frac{1}{4} = \frac{1 + 2 + 2}{8} = \frac{5}{8}$

The three worker can thus do $\frac{5}{8}$ th of the work in one hour

Hence the three of them together can finish the work in $\frac{8}{5}$ hours

$\frac{8}{5} = 1\frac{3}{5}$ hours

Thus working together three workers would take 1 hour 36 minutes to finish the job

8 0

3 years ago

A tanker truck fills the gas station's reservoir at the rate of 1212 gallons per minute. If the reservoir was empty and it is no

GalinKa [24]

Answer: 2.9 minutes.

Step-by-step explanation:

Given: Rate of filing the tank = 12 gallons per minute

Total volume of reservoir = 35 gallons

Time taken to fill the reservoir = $\dfrac{\text{Total volume of reservoir }}{\text{Rate of filing the tank}}$

$=\dfrac{35}{12}\approx2.9$

hence, time taken to fill the reservoir = 2.9 minutes.

3 0

3 years ago

The computer that controls a bank's automatic teller machine crashes a mean of 0.60.6 times per day. What is the probability tha

OLEGan [10]

Answer:

0.6045 = 60.45% probability that, in any seven-day week, the computer will crash more than 3 times.

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 time interval.

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 per day.

7 day week, so $\mu = 7*0.6 = 4.2$

What is the probability that, in any seven-day week, the computer will crash more than 3 times?

Either it crashes 3 or less times, or it crashes more than 3 times. The sum of the probabilities of these events is decimal 1. So

$P(X \leq 3) + P(X > 3) = 1$

We want P(X > 3). So

$P(X > 3) = 1 - P(X \leq 3)$

In which

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)$

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

$P(X = 0) = \frac{e^{-4.2}*(4.2)^{0}}{(0)!} = 0.0150$

$P(X = 1) = \frac{e^{-4.2}*(4.2)^{1}}{(1)!} = 0.0630$

$P(X = 2) = \frac{e^{-4.2}*(4.2)^{2}}{(2)!} = 0.1323$

$P(X = 3) = \frac{e^{-4.2}*(4.2)^{3}}{(3)!} = 0.1852$

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0150 + 0.0630 + 0.1323 + 0.1852 = 0.3955$

$P(X > 3) = 1 - P(X \leq 3) = 1 - 0.3955 = 0.6045$

0.6045 = 60.45% probability that, in any seven-day week, the computer will crash more than 3 times.

3 0

4 years ago

On the number line above, PQ= 3/4 , PS= 8 1/12 , and RS= 2 1/2 . What is the position of point R ?

sergiy2304 [10]

Answer:

how do you know what the answer is

Step-by-step explanation:

6 0

3 years ago