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4 years ago

According to the histogram, how many students live between 2 and 2.9 miles

Mathematics

2 answers:

tamaranim1 [39]4 years ago

7 0

Answer:

Step-by-step explanation:

Svetllana [295]4 years ago

7 0

I would believe the answer is B or D

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What is the length of a rectangular garden whose perimeter is 32 cm and area 39 cm^2?

kherson [118]

Answer:

Length = 13 cm.

Step-by-step explanation:

If the length is L and the width is W we have the system:

2L + 2W = 32

LW = 39

From the first equation:

L + W = 16 and

L = 16 - W

Substitute this in the second equation:

W(16 - W) = 39

16W - W^2 = 39

W^2 - 16W + 39 = 0

(w - 13)(W - 3) = 0

W = 13, 3

As W < L, W must be 3 because L = 16-13 = 3 does not make sense.

So Length = 16 - 3 = 13.

3 0

3 years ago

Read 2 more answers

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:

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

λ = 90 / 18 = 5 average goals per interval (interval = a game)

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

k = 2

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

This was just an example,

The standard deviation is $\sqrt{\lambda}$

$\sigma = \sqrt{\lambda} \\\sigma = \sqrt{5} \\\sigma = 2.24$

8 0

4 years ago

What is the solution to j + (-3) = 9?

Stels [109]

Answer:

j = 12

Step-by-step explanation:

j + (-3) = 9

j = 12

8 0

3 years ago

I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS

vovikov84 [41]

Answer:

it's C.

Step-by-step explanation:

Hope that helped :D

6 0

3 years ago

Solve the value of n

UNO [17]

9n+2+34=90
9n=54
n=6

4 0

3 years ago

Read 2 more answers