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belka [17]
2 years ago
7

A teacher gives each of five students a box that contains 25 red balls, 25 blue balls, 25 green balls, and 25 purple balls. The

students each picked a different number of balls out of their box and recorded their results in this table. What can you conclude from the table?
A) The more balls a student picked, the closer she or he came to the expected number per color.

B) The student who picked 10 balls came closest to the expected number of balls per color.

C) The fewer balls a student picked, the closer she or he came to the expected number per color.

D) The student who picked 15 balls came closest to the expected number of balls per color.
Mathematics
1 answer:
liubo4ka [24]2 years ago
8 0
The answer is a the more balls means the more chance a desired color will be chosen
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A line passes through the point (-1,-5) and has a slope of -5.
Anna71 [15]
<h3>hello!</h3>

We're given a point that the line intersects and its slope.

Let's use Point-slope:-

\boxed{y-y1=m(x-x1)}

y1 = -5

m=-5

x1=-1

\boxed{y-(-5)=-5(x-(-1)}

\boxed{y+5=-5(x+1)}

Convert to slope-intercept:-

\boxed{y+5=-5x-5}

\boxed{y=-5x-5-5}

Finally,

\bigstar{\boxed{\pmb{y=-5x-10}}

<h3>note:-</h3>

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

5 0
1 year ago
Logans credit card bill indicates that he owes $470. Sends a check to the credit card company for $45 charges $160 in merchandis
insens350 [35]
$470-45+160-500= $630-545= $85. Logan still owes $85 :)
7 0
2 years ago
Solving quadratic equations using square roots <br><br> (2/5)(x+3)^2=5
Slav-nsk [51]

x =  - 3 +  \frac{5 \sqrt{2} }{2} \\   - 3 -  \frac{5 \sqrt{2} }{2}
x = .5355339 \\  - 6.5355339

I think that's what your looking for
6 0
2 years ago
Janae found PointA located at ,(-2,5) and c is located at (6,1) . What would be the x coordinate of point b that bisects A and C
Alexxandr [17]

A point that bisects a segment would be its midpoint. This is a case where the vocabulary  (bisect as opposed to midpoint) makes it harder.

To find the midpoint, we use the midpoint formula. The midpoint formula is:

midpoint = (x₁ + x₂/2, y₁ + y/2). To find it, you add the x coordinates and then divide them by 2. Repeat for the y coordinates.

x: (-2 + 6)/2 = 4/2 = 2

y: (5 +1)/2 = 6/2 = 3


Thus the point B bisecting AC is at (2, 3).

8 0
2 years ago
You place the spring vertically with one end on the floor. You then drop a book of mass 1.50 kg onto it from a height of 0.900 m
Alex777 [14]

Answer:

The value of the maximum distance the spring will be compressed  

x = 0.143 m= 14.3 cm

Step-by-step explanation:

Given data

Mass m = 1.5 kg

h = 0.9 m

k = 1500\frac{N}{m}

Since the book is released from a height h = 0.9 m above the top of the spring. so the total distance

y = h + x

Now in that case for the spring

mg y= \frac{1}{2} k x^{2}

mg(h +x) = \frac{1}{2} k x^{2}

By rearranging the above equation we get

k x^{2}  - 2mgx - 2mg h = 0

Put all the values in above equation we get

1500x^{2}  - 29.43 x - 26.48 = 0

By solving the above equation we get

x = 0.143 m= 14.3 cm

This is the value of the maximum distance the spring will be compressed.

8 0
2 years ago
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