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3 years ago

11

In a particular class, there are 3 freshmen, 5 sophomores, 11 juniors, and 2 seniors. If the instructor randomly chooses a stude

nt to answer a question in class, what is the probability that the student chosen will be a freshman?

2 answers:

marishachu [46]3 years ago

8 0

1/7 can't really explain gtg bai

Monica [59]3 years ago

7 0

Freshmen/total
3/21= 1/7

1/7

Hope this helps!

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Y=x+2 y=-3X <br><br>solve system of equations algebraically <br>

goblinko [34]

Answer:

(x,y) = -1/2 , 3/2

Step-by-step explanation:

Let y = x +2 ----- (1)

y = -3x ------ (2)

Put equal both sides x +2 = -3x

x = -3x -2

x +3x = -2

4x = -2

x = -1/2 Put it in 2nd equation

Y = -3 (-1/2)

y = 3/2

so (x,y) = -1/2 , 3/2

Hope you got it.

Please Mark as Brainliest.

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2 years ago

Help me I have no idea how to do 18

sleet_krkn [62]

First, subtract px2 from both sides.

Now you have:

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Next, divide both sides by (1 - p)

So now you have

x3 - px2/(1 - p) = x1

...as your final answer

*You can decide if you want to leave the parenthesis in your final answer, I left them there so it could be visible where I put them. :)

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3 years ago

Mitch has 50 pieces of licorice. He shares them equally with his sister.

leonid [27]

50/2=L is the a expression

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Need help with circle measurements in Geometry.

Ymorist [56]

I got 0.999 which is 999/1000

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3 years ago

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adell [148]

Answer: A=351.68 cm²

Step-by-step explanation:

To find the area of the shaded region, we would subtract the area of the circle by the area of the inner circle.

Area of Circle

$A=\pi r^2$

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$A=121\pi$

Area of inner (white) circle

$A=\pi r^2$

$A=\pi (3)^2$

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Now that we have the area to the circle and inner circle, we would subtract to find the area of the shaded region.

$A=121\pi -9\pi$

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2 years ago