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3 years ago

I NEED HELP PLEASE, THANKS.

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

Answer:

B. $33.7 mm; 54mm^2$

Step-by-step explanation:

To find the perimeter, use the formula:

P = a + b + c

P = 12 + 12 + 9.7

P = 33.7

To find area, use the formula:

A = $\frac{1}{2} bh$

A = $\frac{1}{2} (12)(9)$

A = $\frac{1}{2} (108)$

A = 54

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anyanavicka [17]

Answer:

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Step-by-step explanation:

Given that Pedro thinks that he has a special relationship with the number 3. In particular,

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Or proportion p = 0.1667

Pedro claims that this probability is more than 0.1667

$H_0 = P =0.1667______H_a = P>0.1667_____$

where P is the sample proportion.

b) n=30 and $P = 6/30 =0.20$

Mean difference = $0.2-0.1667=0.0333$

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7 0

3 years ago

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svetlana [45]

Answer:

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3 years ago

In a typical children's soccer game, there is one goal scored approximately every 18 minutes. The number of goals scored follows

Alja [10]

Answer:

2.24

Step-by-step explanation:

The probability formula using a Poisson distribution is:

$P(k\ events) = \frac{\lambda^{k}e^{-\lambda}}{k!} \\\lambda\ is\ the\ average\ number\ of\ events\ per\ interval \\e\ is\ euler's\ number \\k\ is\ the\ number\ of\ events\ you\ want\ to\ calculate$

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So if for example you were interested in the probability of making 2 goals in a game

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$P(k = 2) = \frac{5^{2}e^{-5}}{2!} = 0.084$

This was just an example,

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8 0

4 years ago

ANSWER #2 PLEASE :)

dmitriy555 [2]

Since figure t is twice the size of figure s, figure t would be twice the size of s. hence the answer would be a scale factor of 2.

3 0

3 years ago

The sum of the deviations about the mean always equals _________.

Cloud [144]

It always equal 0
hope this helps :)

5 0

4 years ago