3 years ago

A bag of marbles has 2 blue,3 green, 4

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

5 0

The correct answer is 1:2

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The measures of the angles of a triangle are shown in the figure below. Find the

dimaraw [331]

Answer:

318.6

Step-by-step explanation:

(3x-9) + (x+15) = 180

3x (x+15) -9 (x+15)

4x + 45x - 9x + 6 = 180

40x + 6 = 180

40x = 180 - 6

40x = 174

x = 4.34

(3x-9) = 4.34 * 3x-9 = 4.02

(x+15) = 4.34 + 15 = 19.34

180 - (4.02 + 19.34)

= 180 - 23.36

= 156.64

hope this answer helps!!

6 0

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:

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

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

3 years ago

Simplified version of -12x + 3y = -3?

damaskus [11]

20 I think!

Look it up just to be sure

4 0

3 years ago

Read 2 more answers

Consider the continuous random variable x, which has a uniform distribution over the interval from 20 to 28. refer to exhibit 6-

tatyana61 [14]

(25 -21)/(28 -20) = 4/8 = 1/2

Your probability is 1/2.

7 0

3 years ago

Ethan ran 11 miles in 2 hours. what is the unit rate of miles to an hour?

bearhunter [10]

11 ÷ 2 = 5.5
Ethan ran 5.5 miles per hour

4 0

3 years ago