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3 years ago

Here are two similar rectangles.

Mathematics

1 answer:

asambeis [7]3 years ago

7 0

Answer:

$40.32cm^{2}$

Step-by-step explanation

4*1.2=4.8

7*1.2=8.4

8.4*4.8=40.32

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Reflect the line segment across the x-axis. Then, rotate it 90° clockwise. Finally,

Dmitriy789 [7]

Yes it’s still a line segment. The shape didn’t change in size.

3 0

3 years ago

Kyle is renewing his subscription to his favorite computer magazine . The cost is $24 for 12 issues. What is the cost of each is

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

$24 ÷ 12 issues = $2 per issue

8 0

3 years ago

Read 2 more answers

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

Which expression is the sum of

arlik [135]

Answer:

Step-by-step explanation:

its b because you add the 3.4n +2.5n then you subtract -5.3+2.8

6 0

3 years ago

I have $8$ pieces of strawberry candy (all identical) and $7$ pieces of rhubarb candy (all identical). Find the number of ways I

ra1l [238]

Step-by-step explanation:

Given data,

total no.of strawberry candy = 8 pieces

total no.of rhubarb candy = 7 pieces

to distribute all to 5 children equally = ?

now we have,

no.of strawberry candy to each children = 8/5 = 1.6 pieces

and

no.of rhubarb candy to each children = 7/5 = 1.4pieces

it may help you

please mark me as brainlist answer.

thanks

6 0

3 years ago