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4 years ago

13

You and six friends play a game where each person writes down his or her name on a scrap of paper, and the names are randomly di

stributed back to each person. Find the probability that everyone gets back his or her own name.

1 answer:

Vanyuwa [196]4 years ago

7 0

It would be 1/7 chance cause there are 7 people total but you have the 1 chance that you are going to get your own name

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There is a bag of marbles that contain 5 blues, 6 red, 3 black, and 2 yellow marbles. What is the probability that you select a

irinina [24]

Answer:

$\frac{5}{16}$

Step-by-step explanation:

1) Find the total number of marbles

5 blue + 6 red + 3 black + 2 yellow

= 16 marbles

2) To find the probability of selecting a blue marble, divide the number of blue marbles by the number of total marbles:

5 blue marbles ÷16 marbles

$= \frac{5}{16}$

Therefore, the probability of selecting a blue marble is $\frac{5}{16}$ .

I hope this helps!

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3 years ago

Which of the following is 13/16 closest to?<br><br> a.0<br> b.1/2<br> c.1

Brrunno [24]

Answer:

Step-by-step explanation:

C.1 is the answer to your question

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3 years ago

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Point slope form for (-3,3) and -2

blondinia [14]

Answer: y=-2x+3

Solving Steps:
y-y=m(x+b)
y-3=-2(x-3)
y-3=-2x+6
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3 years ago

A cell tower is located at and transmits a circular signal that covers three major cities. The three cities are located on the c

Lelu [443]

Answer:

$(x+8)^2 +(y-4)^2 = 25$

Step-by-step explanation:

Assuming this complete problem: "A cell tower is located at (-8, 4) and transmits a circular signal that covers three major cities. The three cities are located on the circle and have the following coordinates: G (-4, 7), H (-13, 4), and I (-8, -1). Find the equation of the circle"

For this case the generla equation for the circle is given by:

$(x-h)^2 +(y-k)^2 = r^2$

From the info we know that the tower is located at (-8, 4) so then h = -8 and k = 4, so then we need to find the radius. So we have the equation like this: $(x+8)^2 +(y-4)^2 = r^2$

If the 3 points are on the circle then satisfy the equation. We can use the first point (-4,7) and if we replace we can find the value for $r^2$

$(-4+8)^2 +(7-4)^2 =25= r^2$

So then $r = \sqrt{25}=5$

And if we replace the second point we got this:

$(-13+8)^2 +(4-4)^2 = 25 =r^2$

And for the third point we have:

$(-8+8)^2 +(-1-4)^2 = 25 =r^2$

And we got the same result.

So then our final equation is given:

$(x+8)^2 +(y-4)^2 = 25$

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4 years ago

Ryan is going on a road trip, he travels 240 miles in 4 hours. What is his unit rate in miles per hour?

goldenfox [79]

Answer:

60: 1

Step-by-step explanation:

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3 years ago

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