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Aneli [31]
3 years ago
7

A box has 1 red marble, 1 blue marble, and 4 green marbles of the same shape and size. Dan draws a marble randomly from the box,

replaces it, and then draws another marble randomly. What is the probability of drawing two green marbles in a row? Explain your answer.
Mathematics
2 answers:
andrezito [222]3 years ago
4 0
Well, he has a 4/6 or 2/3 chance of pulling a green marble. Drawing a second marble would make it another 2/3 chance. So he would have a 4/6 chance since 2/3 + 2/3 = 4/6.
ELEN [110]3 years ago
4 0

The probability of drawing two green marbles in a row is 12/30, this is because when you draw the first green marble, you are losing a marble, so after that, the chances of drawing a green marble is smaller.

The Equation: 4/6 * 3/5 = 12/30 = 0.4 = 40%

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Firdavs [7]

9514 1404 393

Answer:

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  • $62,000

Step-by-step explanation:

a) The 36000 -23000 = 13000 difference in salary is being made up at the rate of 3000 -2000 = 1000 per year. It will take 13000/1000 = 13 years for the salaries to be the same.

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b) After 13 years, the salary will be ...

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4 0
3 years ago
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Determine whether The given segments have the same length. Justify your answer
Semenov [28]

We know the distance formula is

\sqrt{ (x_{2}-x_{1})^2+ (y_{2}-y_{1})^2 }

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Here A( -4,2) and B(1,4)

So length of AB

= \sqrt{(1-(-4))^2+(4-2)^2} =\sqrt{5^2+2^2} =\sqrt{29}

Also C(2,1)

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11.

Now AB = \sqrt{29}

Also C(2,-1) & D(4,4)

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5 0
3 years ago
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Alexus [3.1K]

Answer:

The period of given function is  Period = 16\pi

So, Option B is correct.

Step-by-step explanation:

In this question we need to find the period of the function y= 3 sin x/8

The formula used to find period of function is: \frac{2\pi }{b}

We need to know the value of b.

To find the value of b we compare the standard equation with the equation of function given.

Standard Equation: y = a sin(bx - c) +d

Given Equation: y= 3 sin(x/8)

Comparing we get:

a= 3

b= 1/8

c= 0

d=0

So, we get the value of b i.e 1/8. Putting it in the formula to find period of given function.

Period = \frac{2\pi }{b}

Period = \frac{2\pi }{\frac{1}{8}}

Solving,

Period = 2\pi *8

Period = 16\pi

So, the period of given function is  Period = 16\pi

5 0
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