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Snezhnost [94]
3 years ago
15

There are 8 red, 4 green and 12 yellow balls in a box. If you choose one ball from the box, what is the probability that it will

be a yellow ball?
Mathematics
1 answer:
rusak2 [61]3 years ago
8 0

Answer:

50% percent chance the ball will be yellow

Step-by-step explanation:

Find the amount of all the balls-24 and the amount of yellow balls-12

Then divide the number of yellow balls by the number of total balls.

12÷24=0.5

0.5=50%

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1. The triangles above are similar. What is the ratio (larger to smaller) of the perimeters? (1 point)
eimsori [14]

Answer:

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Step-by-step explanation:

Attached is an image of the two triangles.

Since both triangles are similar, the ratio of their perimeter is equal to the ratio of each similar sides.

Ratio = P1/P2 = S1/S2

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7 0
3 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 20°
Alla [95]

Answer:

The length of the arc is 1.0467

Step-by-step explanation:

First of all to solve this problem we need to use the circumferenc formula of a circle:

c = circumference

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c = 2π * r

we replace with the known values

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Now we have to divide the 20° by the 360​​° that a circle has, to know what part of the circle it represents

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4 0
2 years ago
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